MAX197 Eval Kit Datasheet by Maxim Integrated

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lVI/JXI/VI J cocccccil IVIAXIM
_______________General Description
The MAX197 evaluation system (EV system) is a com-
plete, low-cost, 8-channel data-acquisition system con-
sisting of a MAX197 evaluation kit (EV kit) and a Maxim
80C32 or 68HC16 microcontroller (µC) module. IBM
PC compatible software provides a handy user inter-
face to demonstrate the MAX197’s many features.
Source code is provided.
The MAX197 EV kit requires a single +5V supply and
includes optional input buffer amplifiers that operate
with ±15V supplies.
The MAX197 EV kit and EV system evaluate both the
MAX197 and the MAX199. To evaluate the MAX199,
order a sample of the MAX199 along with the MAX197
EV kit.
____________________________Features
Proven PC Board Layout
Complete Evaluation System
Convenient Test Points Provided On-Board
Data Logging Software
Source Code Provided
Fully Assembled and Tested
User-Selected Microcontroller Module 80C32
or 68HC16
Evaluates: MAX197/MAX199
MAX197 Evaluation Kit
________________________________________________________________
Maxim Integrated Products
1
Call toll free 1-800-998-8800 for free samples or literature.
19-0398; Rev 1; 7/95
PART TEMP. RANGE BOARD TYPE
MAX197EVKIT-DIP 0°C to +70°C Through-Hole
68HC16 Module
MAX197 EV Kit
______________Ordering Information
____________MAX197 EVC16 System
___________________Component List ____________MAX197 EVC32 System
____________________Component List
_____________________________________________________MAX197 EVC16 System
MAX197EVC16-DIP 0°C to +70°C Through-Hole
MAX197EVC32-DIP 0°C to +70°C Through-Hole
QTY DESCRIPTION
1MAX197 Evaluation Kit (MAX197EVKIT-DIP)
168HC16 µC Module (68HC16MODULE-DIP)
QTY DESCRIPTION
1MAX197 Evaluation Kit (MAX197EVKIT-DIP)
180C32 µC Module (80C32MODULE-DIP)
IPIAXIM
Evaluates: MAX197/MAX199
MAX197 Evaluation Kit
2 _______________________________________________________________________________________
_______MAX197 Stand-Alone EV Kit
The MAX197 EV kit provides a proven PC board layout
to facilitate evaluation of the MAX197. It must be inter-
faced to appropriate timing signals for proper opera-
tion. Refer to the MAX197 data sheet for timing require-
ments.
___MAX197 EV System Quick Start
1) Copy the files from the distribution disk to your hard
disk or to blank floppy disks. The MAX197 EV kit
software should be in its own directory. The neces-
sary files are in the root directory of the distribution
disk, and the source code is in the SOURCE sub-
directory. The SOURCE subdirectory is not
required to operate the EV kit.
2) Carefully connect the boards together by aligning
the 40-pin header of the MAX197 EV kit with the 40-
pin connector of the µC module. Gently press them
together. The two boards should be flush against
each other.
3) Connect a +15V/-15V DC power supply to the
OPAMP V+ / OPAMP V- inputs of the MAX197 EV
kit. Connect the power supply’s COMMON terminal
to the kit’s AGND pad.
4) Connect a 9V to 15V DC power source to the µC
module. The terminal block is located next to the
on/off switch, in the upper right corner of the µC
module. Observe the polarity marked on the board.
The same +15V supply that powers OPAMP V+ can
be used to power the µC module.
5) Connect a cable from the computer’s serial port to
the µC module. If using a 9-pin serial port, use a
straight-through, 9-pin female-to-male cable. If the
only available serial port uses a 25-pin connector, a
standard 25-pin to 9-pin adapter will be required.
The EV kit software checks the modem status lines
(CTS, DSR, DCD) to confirm that the correct port
has been selected.
6) Start the MAX197 software on the IBM PC by setting
the current directory to match the directory that
contains the Maxim programs, and then type the
program name, “MAX197”. Do not turn off or dis-
connect the µC module while the program is run-
ning; if you do, you will have to restart the program.
7) The program will ask which µC module is being
used and to which port it is connected. Press the
space bar until the correct port is highlighted, and
press C until the correct µC module is highlighted.
Press ENTER when both are correct. The MAX197
program will be in terminal emulation mode.
8) Turn on the power for the µC module. The µC mod-
ule will display its logon banner and test its RAM.
9) Download and run the RAM resident program on
the µC module by pressing ALT+L (i.e., hold down
the ALT key as you strike the L key). The program
prompts you for the file name. Press the ENTER
key to download and run the file.
10) Press ALT+C to switch to the Control Panel screen
after the RAM resident program has been success-
fully downloaded.
11) Apply input signals to the CH0–CH7 inputs at the
right edge of the MAX197 EV kit board. Observe
the readout on the screen. Table 1 lists the com-
mands available from the control-panel screen.
12) Before turning off power to the MAX197 EV kit, exit
the program by pressing ALT+X.
___MAX197 EV Kit Component List
3-pin header
2-pin header
8-pin headers
DESIGNATION
0.1µF ceramic capacitors
Open
100pF ceramic capacitor
MXL1014CN quad op amps2U3, U4 MAX874CPA 4.096V reference1U2
MAX197BCNI1U1
Open0R1, R2, R3
Open0JU3, JU4
1JU2
1JU1
2J15, J16
2 x 20 header1J11
1C11
10µF tantalum capacitors3C10, C14, C18
0
C2–C7, C9,
C12, C13
5
C1, C8, C15,
C16, C17
DESCRIPTIONQTY
MIJXIIVI
Evaluates: MAX197/MAX199
MAX197 Evaluation Kit
_______________________________________________________________________________________ 3
__Detailed Description of Software
Reading the MAX197
The EV kit reads the MAX197 using the algorithm
shown in source code Listings 1a and 1b.
When power is first applied, the MAX197 is in external
clock mode. However, the initialization software recon-
figures the MAX197 to internal clock mode.
The EV kit software demonstrates the MAX197’s many
modes of operation. When writing your own application-
specific software, one of the following simplified algo-
rithms (shown in bold type) should be implemented.
These algorithms show the options available using the
power-down and acquisition mode control bits. Except
where otherwise specified, ACQMOD = 0.
When using an external reference, a power-up delay is
not necessary. When using the MAX197’s internal ref-
erence, allow time for the REF capacitor to charge at
power-up and when exiting full power-down mode. For
a complete description of all control bits, refer to the
MAX197 data sheet.
Internal acquisition mode, standby power-down
between conversions:
1) Begin conversion by writing PD1 = 1, PD0 = 0. This
powers up the MAX197, causing it to perform a
conversion, then go into standby mode after con-
version completes.
2) After the INT pin goes low, read the result from the
MAX197.
Internal acquisition mode, full power-down between
conversions:
1) Power up the MAX197 by writing PD1 = 1, PD0 = 0
(standby).
2) Execute a power-up delay, to allow the reference
capacitor time to recharge.
3) Begin conversion by writing PD1 = 1, PD0 = 1 (full
power-down).
4) After the INT pin goes low, read the result from the
MAX197.
Internal acquisition mode, SHDN pin low between
conversions:
1) Power up the MAX197 by setting the SHDN pin
high.
2) Execute a power-up delay to allow the reference
capacitor time to recharge.
3) Begin conversion by writing PD1 = 1, PD0 = 0
(standby).
4) After the INT pin goes low, read the 16-bit result
from the MAX197.
5) Power down the MAX197 by setting the SHDN pin
low.
External acquisition mode, standby power-down
between conversions:
1) Begin acquisition time by writing PD1 = 1, PD0 = 0
(standby), ACQMOD = 1.
2) Execute the acquisition time delay.
3) Begin conversion by writing PD1 = 1, PD0 = 0
(standby), ACQMOD = 0.
4) After the INT pin goes low, read the result from the
MAX197.
External acquisition mode, full power-down
between conversions:
1) Power up the MAX197 by writing PD1 = 1, PD0 = 0
(standby).
2) Execute a power-up delay, to allow the reference
capacitor time to recharge.
3) Begin acquisition time by writing PD1 = 1, PD0 = 0
(standby), ACQMOD = 1.
4) Execute the acquisition time delay.
5) Begin conversion by writing PD1 = 1, PD0 = 1 (full
power-down), ACQMOD = 0.
6) After the INT pin goes low, read the result from the
MAX197.
External acquisition mode, SHDN pin low between
conversions:
1) Power up the MAX197 by setting the SHDN pin
high.
2) Execute a power-up delay, to allow the reference
capacitor time to recharge.
3) Begin acquisition time by writing PD1 = 1, PD0 = 0
(standby), ACQMOD = 1.
4) Execute the acquisition time delay.
5) Begin conversion by writing PD1 = 1, PD0 = 0
(standby), ACQMOD = 0.
6) After the INT pin goes low, read the result from the
MAX197.
7) Power down the MAX197 by setting the SHDN pin
low.
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Evaluates: MAX197/MAX199
MAX197 Evaluation Kit
4 _______________________________________________________________________________________
Listing 1a. Using the 68HC16 to Read the MAX197
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Evaluates: MAX197/MAX199
MAX197 Evaluation Kit
_______________________________________________________________________________________ 5
Listing 1b. Using the 80C32 to Read the MAX197
IPIAXIM
Evaluates: MAX197/MAX199
MAX197 Evaluation Kit
6 _______________________________________________________________________________________
____________________68HC16 Module
____Typical Timing Characteristics ______________________80C32 Module
____Typical Timing Characteristics
100,000
100 1 10 100 1k 10k
SAMPLE RATE vs. DELAY BETWEEN SAMPLES
(COMMAND "D")
1000
MAX197-01
68HC16 "D" COMMAND VALUE
SAMPLE (sps)
10,000
NO ACQUISITION DELAY
NO POWER-UP DELAY
SHDN = HIGH
10,000
110 100 1k 10k
EXTERNAL ACQUISITION TIME vs.
USER-SELECTED INPUT VALUE (COMMAND "A")
10
MAX197-02
68HC16 "A" COMMAND VALUE
EXTERNAL ACQUISITION TIME (µs)
1000
100
10,000
110 100 1k 10k
POWER-UP DELAY vs. USER-SELECTED
INPUT VALUE (COMMAND "P")
10
MAX197-03
68HC16 "P" COMMAND VALUE
POWER-UP DELAY (µs)
1000
100
100,000
10 110 100 1k 10k 100k
SAMPLE RATE vs. DELAY BETWEEN SAMPLES
(COMMAND "D")
100
MAX197-04
80C32 "D" COMMAND VALUE
SAMPLE (sps)
1000
10,000
NO ACQUISITION DELAY
NO POWER-UP DELAY
SHDN = HIGH
1000
10 1 10 100 1000
EXTERNAL ACQUISITION TIME vs.
USER-SELECTED INPUT VALUE (COMMAND "A")
100
MAX197-05
80C32 "A" COMMAND VALUE
EXTERNAL ACQUISITION TIME (µs)
100,000
10
POWER-UP DELAY vs. USER-SELECTED 
INPUT VALUE (COMMAND "P")
100
MAX197-06
80C32 "P" COMMAND VALUE
POWER-UP DELAY (µs)
1000
10,000
110 100 1k 10k 100k
MIJXIIVI
Evaluates: MAX197/MAX199
MAX197 Evaluation Kit
_______________________________________________________________________________________ 7
Shutdown Power Cycling
From the control panel, use the up/down arrow keys to
select the power-down mode. STANDBY power
cycling puts the MAX197 in standby mode between
readings, and FULLPD turns off everything except the
2.5V bandgap reference. The MAX197 is always fully
powered during conversions. The MAX197’s shutdown
pin can be used to put the device into FULLPD mode.
When using FULLPD or SHDN, a power-up delay may
be necessary to allow the reference buffer time to
recharge. From the control panel, use the “P” com-
mand to set this power-on delay. The 68HC16 software
allows delays between 68µs and 6000µs. The 80C32
software allows delays between 8µs and 65535µs. A
value of 0 disables the delay. Refer to the
Typical
Timing Characteristics
to see the relationship between
the value selected on the corresponding power-up
delay.
Low-Speed Data Logging
The RS-232 serial link limits the data logging sample
rate to no more than 10sps (samples per second). The
data logging command can be used to write data to a
user-specified file in plain comma-spaced-value text
format. From the control panel screen, press L. If a log
file is not already open, the software will ask for a file
name. Only one log file is allowed per session. Once a
log file has been opened, pressing L toggles data log-
ging on or off. While data logging is enabled, the word
“Logging” will flash on the screen. One complete line
of data is written to the log file after all enabled chan-
nels have been sampled.
The first line of the log file contains the column head-
ings. Each subsequent line of the log file contains all
eight channels, separated by commas. The values are
written as raw decimal output codes or as scaled volt-
ages, depending on which setting the control panel is
currently displaying. Use the C and V commands to
select the display format (see Table 1). F3, the log data
marker command, can be used to sequentially tag dif-
ferent sections of the log file to indicate a change in
setup or input conditions. Pressing F3 writes an extra
entry at the end of the current line of the data log, which
can be useful for indicating a change in setup or input
conditions.
High-Speed Data Sampling
For sampling rates over 10sps, the S command can be
used. Data can be collected from only one of the eight
channels at a rate from 100sps up to 45ksps for the
68HC16 module (10sps to 10ksps for the 80C32 mod-
ule). First, select the channel by pressing one of the
number keys 0–7. Next, press F to specify the name of
the file into which the samples should be written. If the
file already exists, the screen will say “*** file already
exists***”. To begin collecting data, press B. After 1024
samples have been collected, the data is automatically
uploaded to the host and stored in the sample file.
Controlling the Sampling Rate
The rate for high-speed sampling, data logging, and the
oscilloscope demo mode (see Table 1, key “O”) is con-
trolled by the D (delay between samples) command.
When used with the sample or oscilloscope demo com-
mands, specify the approximate delay in microseconds
by typing D, the approximate delay time, then “usec”.
Refer to the
Typical Timing Characteristics
to see the
relationship between the value selected and the corre-
sponding delay between samples. Due to code over-
head, this delay is not perfectly linear, so timing should
always be verified using an oscilloscope. The fast
sampling screen and oscilloscope demo mode use
delays on the order of 100µs to 1000µs. The 80C32
software supports delays between 24µs and 73ms, but
the 68HC16 software only supports delays between
68µs and 6000µs.
When used with the slower data-logging command,
specify the delay in seconds. This delay is defined as
the time between two consecutive conversions.
Tare Command (software offset null)
The tare command is used to compensate in software
for the offset voltage. Connect the channel 0 input pin
to ground (or, if driving with an op amp, connect the
channel 0 op amp’s input to ground instead). The “T”
command measures the offset voltage on channel 0
and subtracts that offset from all subsequent readings
on all channels. The tare command is canceled by
pressing CTRL+T.
IVIAXIM
Evaluates: MAX197/MAX199
MAX197 Evaluation Kit
8 _______________________________________________________________________________________
_Detailed Description of Hardware
Driving the Analog Inputs
Select an op amp based on its settling time. A fast set-
tling time is more important than a fast slew rate. Sites
U3 and U4 on the EV kit are industry-standard quad
op-amp pinouts in the voltage-follower configuration.
When using a slow op amp, extend the acquisition time
by using the “A” command in the control panel. The
68HC16 software allows acquisition times between
68µs and 6000µs. The 80C32 software allows acquisi-
tion times between 12µs and 560µs. A value of 0 dis-
ables the delay.
For high sampling rates, a fast settling op amp such as
Maxim’s MXL1014 performs quite well. Refer to the
Typical Timing Characteristics
to see the relationship
between the value selected and the corresponding
external acquisition delay. For lower sampling rates,
any quad 741 type op amp should be adequate. The
LM348 is an inexpensive solution. For +5V single-sup-
ply systems, the MAX414 is recommended.
Changing the Reference Voltage
The MAX197 can use either its internal reference or an
external reference. On the EV kit, the internal reference
has been disabled by pulling the REFADJ pin up to
+5V (JU1) and driving the REF pin with a MAX874
4.096V reference (JU2).
When driving the REF pin with an external reference,
install a shunt at JU1 and place JU2 in the 1-2 position.
When driving the REFADJ pin with an external reference,
leave jumper JU1 open and place JU2 in the 2-3 position.
For lowest component count, the MAX197’s internal ref-
erence can be enabled by removing the shunts from JU1
and JU2. This enables the internal bandgap reference
and the reference buffer, driving REF internally to
4.096V. For best results, install a 0.01µF ceramic bypass
capacitor near the REFADJ pin (C7 on the EV kit).
The MAX197 EV kit software assumes a 4.096V refer-
ence voltage, unless otherwise specified. When using
other reference values, the reference value must be
specified when starting the program. For example, if
the REFADJ pin is driven by a 2.048V reference, start
the MAX197 software by typing:
MAX197 REFADJ 2.048
Or, if the REFADJ pin is pulled high and REF is driven
by a 3.00V reference, start the MAX197 software by
typing: MAX197 REF 3.00
Using an External Clock
Cut JU4 open. From the control panel, press F8 to
select external clock mode. Apply the external clock to
the EXTCLK input pad.
Evaluating the MAX199
To evaluate the MAX199 using the MAX197 EV kit,
replace U1 with a MAX199. Then, at the DOS prompt,
start the MAX197 software by typing:
MAX197 199
If the voltage reference is different than the default
4.096V, the MAX197 EV kit software should be
informed. For example, if the REFADJ pin is driven by a
2.048V reference, start the MAX197 software by typing:
MAX197 199 REFADJ 2.048
Or, if the REFADJ pin is pulled high and REF is driven
by a 3.00V reference, start the MAX197 software by
typing: MAX197 199 REF 3.00
Refer to the
Changing the Reference Voltage
section
for an explanation of how REF and REFADJ interact.
MAXI/VI
Evaluates: MAX197/MAX199
MAX197 Evaluation Kit
_______________________________________________________________________________________ 9
Table 1. MAX197 EV Kit Commands
KEY FUNCTION
F1 Choose input scale (bipolar 10V, unipolar 10V, bipolar 5V, unipolar 5V). The currently active scale is shown underneath
the bar-graph display.
0–7 Enable or disable the corresponding input channel 0, 1, 2, 3, 4, 5, 6, or 7. The EV kit software scans all selected channels.
CDisplay the input codes in decimal.
ALT+X
V Display the input voltages.
Exit to DOS.
DDelay between samples. Delays longer than one second are handled by the IBM PC; otherwise, the µC module
handles the delay. Timing is approximate and should be verified with an oscilloscope.
ALT+T
↑, ↓ Select standby, fast power-down, SHDN power-down, or no power-down.
Switch back to terminal mode.
PPower-up delay. Timing is approximate and should be verified with an oscilloscope. Power-up delay is used
regardless of which power-cycling mode is selected. In standby mode, power-up delay is not necessary and should
be set to zero.
F3
AExternal acquisition time for use with slow op amps. Timing is approximate and should be verified with an oscillo-
scope. The MAX197 is placed in standby mode during acquisition time.
Write a marker into the data log file. (See
the Low-Speed Data Logging
section.)
F7 Internal clock mode. Timing is controlled by capacitor C11. JU4 should be closed when using this mode.
T
F8 External clock mode. Clock must be provided at EXTCLK input pad. JU4 should be cut apart when using this mode.
Tare (offset voltage null). Assumes that channel 0 is connected to AGND. Measures the code at channel 0 and
subtracts that value from all subsequent readings.
OOscilloscope demo. Samples are collected and discarded as fast as possible. Observe waveforms and timing with
an oscilloscope.
L
SSample one of the eight inputs at high speed and upload to a user-specified file. The sampling rate is controlled by
the P, A, and D delays. Due to program overhead, the O and S commands operate at different rates. Timing should
be verified with an oscilloscope.
Enable or disable data logging. If the -L command line option is not specified, the L command prompts for a log file
name.
CTRL+T Cancel the Tare (T) function.
IPIAXIM
Evaluates: MAX197/MAX199
MAX197 Evaluation Kit
10 ______________________________________________________________________________________
Open file “
filename
” for data logging, and
enable the data-logging commands.
-L
filename
For use with monochrome or LCD display.MONO
Default to COM2 part of the PC.2
Default to COM1 part of the PC.1
FUNCTIONCOMMAND
Specify the voltage at the REFADJ pin
(nominally 2.5V).
REFADJ vvv
Specify the voltage at the REF pin (nominally
4.096V). Note that REF is an input or an output,
depending on the state of the REFADJ pin.
Refer to the MAX197 data sheet.
REF vvv
Interprets the output codes for a MAX199
instead of a MAX197. Refer to the MAX199 data
sheet.
199
Table 2. Command-Line Options when
Starting MAX197 Software Table 3. Jumper Settings on MAX197 EV
Kit
(Default) Disable internal bandgap
reference; REF pin is an input.
JU1
FUNCTIONJUMPER
closed
STATE
open Enable internal bandgap reference;
REF pin is 4.096V output.
1-2
2-3 Connects external reference to REFADJ
pin.
(Default) Connects external 4.096V
reference (MAX874) to REF pin;
JU1 must be closed.
closed
open Do not operate kit with JU3 open.
(Default Trace) Current-sense jumper.
The MAX197 draws its +5V supply
through this trace.
closed
open Use the EXTCLK input pad as clock
input.
(Default Trace) Use C11 as the timing
capacitor for the MAX197 internal clock
mode.
open REF = 4.096V output and REFADJ =
2.5V output (internal reference)
JU2
JU3
JU4
MIJXIIVI
Evaluates: MAX197/MAX199
MAX197 Evaluation Kit
______________________________________________________________________________________ 11
Figure 1. MAX197 EV Kit Schematic
1
2
3
4
5
6
7
8
9
10
11
12
13
14
MAX197
28
C1
0.1µF
100pF C8
0.1µF
0.1µF
C7
0.01µF
(OPTIONAL)
AGND
AGND
AGND
OPTIONAL
REFERENCE TRIM
CIRCUIT
C10
10µF
+5V
JU1
TO DISABLE 2.5V 
BANDGAP REF
C18
10µF
AGND
CLK
DGND
JU4 JU3
27
26
25
24
23
22
21
20
19
C2 C4
C5 C9 C13
AGND
D0 J16-1
D1 J16-2
D2 J16-3
D3 J16-4
D4 J16-5
D5 J16-6
D6 J16-7
D7 J16-8
TEST POINTS
OPTIONAL INPUT BYPASS CAPACITORS
C6 C12
CH6
CH5
CH4
CH3
CH2
CH1
CH0
DIRECT OR 
BUFFERED INPUTS
CH7
C3
+5V
DGND
18
17
15
J3
J8
R1
R3 JU2
1
3
2
8
7
6
5
COMP
VIN
GND
AGND
VOUT
REFADJ
J9
J25
R2
C15
C14
10µF
0.1µF
REF
J2
GND
J1
+5V
J12
EXTCLK
CS
WR
RD
HBEN
SHDN
D7
D6
D5
D4
D3
D2
D1
D0
DGND
VDD
REF
REF + ADJ
INT
CH7
CH6
CH5
CH4
CH3
CH2
CH1
CH0
AGND
16
J11-7
J4
J6
J10
J14
J7
J13
J17 CH7
U3A
2
13
J18 CH6
U3B
6
75
J19 CH5
U3C
9
810
J20 CH4
U3D
13
14 12
J21 CH3
U4A
2
13
J24 CH0
U4D
13
14 12
J23 CH1
U4C
9
810
J22 CH2
U4B
6
75
C11
1
+5V
2
3
4
J26
OPAMPV+ U3
4
11
OPAMPV+
OPAMPV-
U4
4
11
OPAMP V+
OPAMP V- OPAMPV-
AGND
C16
0.1µF
C17
DGND J15-1
CS J15-2
WR J15-3
RD J15-4
HBEN J15-5
SHDN J15-6
INT J15-7
+5V J15-8
J11-8
J11-1
J11-2
J11-3
J11-4
J11-19
J11-27
J11-11
J11-10
J11-9
J11-15
J11-30
J11-26
J11-25
J11-24
J11-23
J11-22
J11-21
J11-20
2 x 20 HEADER
TO 68HC16 MODULE 
OR 80C32 MODULE
U1
MAX874
U2
J5
1'" EYALUATIONQ 4-H o o E; a W N Z“ (0 m 90 N [0 X ml A “/00 MW x /V|/JXI/VI _;, mam. mam. 00.000.00.000- 00.00.000.000. “5 «m E Hm IIHS m A“ n- uurrtlru null! .>< |:|.="" 515="" u.="" 2="" wm;="" iviaxim="">
Evaluates: MAX197/MAX199
MAX197 Evaluation Kit
12 ______________________________________________________________________________________
Figure 2. MAX197 EV Kit Component Placement Guide
MIJXIIVI
Evaluates: MAX197/MAX199
MAX197 Evaluation Kit
______________________________________________________________________________________ 13
Figure 3. MAX197 EV Kit PC Board Layout—Component Side
8mg 88% : o o o o o o o I IVIAXIM
Evaluates: MAX197/MAX199
MAX197 Evaluation Kit
14 ______________________________________________________________________________________
Figure 4. MAX197 EV Kit PC Board Layout—Solder Side

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