MAX6225,41,50 Datasheet by Maxim Integrated

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MAX6225IMAX6241IMAX6250 Low-Noise, Precision, \ \ flflflfl |:l|:l|:l|:l
General Description
The MAX6225/MAX6241/MAX6250 are low-noise,
precision voltage references with extremely low 1ppm/°C
temperature coefficients and excellent ±0.02% initial
accuracy. These devices feature buried-zener technology
for lowest noise performance. Load-regulation specifications
are guaranteed for source and sink currents up to 15mA.
Excellent line and load regulation and low output impedance
at high frequency make them ideal for high-resolution
data-conversion systems up to 16 bits.
The MAX6225 is set for 2.500V output, the MAX6241 is
set for 4.096V output, and the MAX6250 is set for 5.000V
output. All three devices provide for the option of external
trimming and noise reduction.
Applications
High-Resolution Analog-to-Digital and Digital-to-
Analog Converters
High-Accuracy Reference Standard
High-Accuracy Industrial and Process Control
Digital Voltmeters
ATE Equipment
Precision Current Sources
Features
Low 1.0ppm/°C Temperature Coefficient
Very Low 1.5μVP-P Noise (0.1Hz to 10Hz)
±0.02% Initial Accuracy
±15mA Output Source and Sink Current
Low, 18mW Power Consumption (MAX6225)
Industry-Standard Pinout
Optional Noise Reduction and Voltage Trim
Excellent Transient Response
8-Pin SO Package Available
Low 20ppm/1000h Long-Term Stability
Stable for All Capacitive Loads
Ordering Information continues at end of data sheet.
19-1139; Rev 6; 7/19
+Denotes a lead(Pb)-free/RoHS-compliant package.
PART TEMPERATURE
RANGE
PIN-
PACKAGE
MAX
TEMPCO
(ppm/°C)
MAX6225ACPA+ 0°C to +70°C 8 Plastic DIP 2.0
MAX6225BCPA+ 0°C to +70°C 8 Plastic DIP 5.0
MAX6225ACSA+ 0°C to +70°C 8 SO 2.0
MAX6225BCSA+ 0°C to +70°C 8 SO 5.0
MAX6225AEPA+ -40°C to +85°C 8 Plastic DIP 3.0
MAX6225BEPA+ -40°C to +85°C 8 Plastic DIP 7.0
MAX6225AESA+ -40°C to +85°C 8 SO 5.0
MAX6225BESA+ -40°C to +85°C 8 SO 7.0
MAX6225AMJA -55°C to +125°C 8 CERDIP 5.0
MAX6225BMJA -55°C to +125°C 8 CERDIP 8.0
Typical Operating Circuit Pin Configuration
Ordering Information
IN
8V TO 36V INPUT
REFERENCE OUT
*OPTIONAL
OUT
TRIM 2.2µF*
2.2µF*
NR
GND
MAX6225
MAX6241
MAX6250
DIP/SO
+
TOP VIEW
I.C. = INTERNALLY CONNECTED; DO NOT USE
MAX6225
MAX6241
MAX6250 OUT
TRIMGND
1
2
8
7
I.C.
I.C.IN
NR
I.C.
3
4
6
5
MAX6225/MAX6241/MAX6250 Low-Noise, Precision,
+2.5V/+4.096V/+5V Voltage References
Click here for production status of specific part numbers.
(Voltages Referenced to GND)
IN............................................................................-0.3V to +40V
OUT, TRIM ..............................................................-0.3V to +12V
NR ............................................................................-0.3V to +6V
OUT Short-Circuit to GND Duration (VIN 12V)..........Continuous
OUT Short-Circuit to GND Duration (VIN 40V) ........................5s
OUT Short-Circuit to IN Duration (VIN 12V) ..............Continuous
Continuous Power Dissipation (TA = +70°C)
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C)...727mW
8-Pin SO (derate 5.88mW/°C above +70°C)................471mW
8-Pin CERDIP (derate 8.00mW/°C above +70°C)...........640mW
Operating Temperature Ranges
MAX62_ _ _C_ A.................................................0°C to +70°C
MAX62_ _ _E_ A..............................................-40°C to +85°C
MAX62_ _ _MJA............................................-55°C to +125°C
Storage Temperature Range ..............................-65°C to +150°C
Lead Temperature (soldering, 10s)...................................+300°C
Soldering Temperature (reflow)
8 PDIP, 8 SOIC............................................................+260°C
8 CDIP..........................................................................+240°C
(VIN = +10V, IOUT = 0mA, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER SYMBOL CONDITIONS TAMIN TYP MAX UNITS
Input Voltage Range VIN C, E, M 8 36 V
Output Voltage VOUT
MAX6225A +25°C 2.499 2.500 2.501
V
MAX6225B +25°C 2.497 2.500 2.503
Output Voltage Temperature
Coefficient (Note 1) TCVOUT
MAX6225AC_A C 1.0 2.0
ppm/°C
MAX6225AE_A E 1.5 3.0
MAX6225AMJA M 2.0 5.0
MAX6225BC_A C 2.5 5.0
MAX6225BE_A E 2.5 7.0
MAX6225BMJA M 2.5 8.0
Line Regulation (Note 2) ΔVOUT /
ΔVIN
8V ≤ VIN ≤ 10V
+25°C 10 18
ppm/V
C 30
E 35
M 45
10V ≤ VIN ≤ 36V
+25°C 2 5
C 7
E 8
M 10
Absolute Maximum Ratings
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Electrical Characteristics—MAX6225
MAX6225/MAX6241/MAX6250 Low-Noise, Precision,
+2.5V/+4.096V/+5V Voltage References
www.maximintegrated.com Maxim Integrated
2
(VIN = +10V, IOUT = 0mA, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER SYMBOL CONDITIONS TAMIN TYP MAX UNITS
Load Regulation (Note 2) ΔVOUT /
ΔIOUT
Sourcing: 0mA ≤ IOUT ≤ 15mA
C 1 6
ppm/mA
E 1 7
M 3 15
Sinking: -15mA ≤ IOUT ≤ 0mA C 1 6
E 1 7
M 10 30
Supply Current IIN
+25µC 1.8 2.7 mA
C, E, M 3.0
Trim-Adjustment Range ΔVOUT Figure 1 C, E, M ±15 ±25 mV
Turn-On Settling Time tON To ±0.01% of final value +25°C 5 µs
Output Noise Voltage (Note 3) en 0.1Hz ≤ f ≤ 10Hz +25°C 1.5 µVp-p
10Hz ≤ f ≤ 1kHz +25°C 1.3 2.8 µVRMS
Temperature Hysteresis (Note 4) +25°C 20 ppm
Long-Term Stability ΔVOUT / t +25°C 20 ppm/
1000h
Electrical Characteristics—MAX6225 (continued)
MAX6225/MAX6241/MAX6250 Low-Noise, Precision,
+2.5V/+4.096V/+5V Voltage References
www.maximintegrated.com Maxim Integrated
3
(VIN = +10V, IOUT = 0mA, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER SYMBOL CONDITIONS TAMIN TYP MAX UNITS
Input Voltage Range VIN C, E, M 8 36 V
Output Voltage VOUT
MAX6241A +25°C 4.095 4.096 4.097
V
MAX6241B +25°C 4.092 4.096 4.100
Output Voltage Temperature
Coefficient (Note 1) TCVOUT
MAX6241AC_A C 1.0 2.0
ppm/°C
MAX6241AE_A E 1.5 3.0
MAX6241AMJA M 2.0 5.0
MAX6241BC_A C 2.5 5.0
MAX6241BE_A E 2.5 7.0
MAX6241BMJA M 2.5 8.0
Line Regulation (Note 2) ΔVOUT /
ΔVIN
8V ≤ VIN ≤ 10V
+25°C 10 18
ppm/V
C 30
E 35
M 45
10V ≤ VIN ≤ 36V
+25°C 2 5
C 7
E 8
M 10
Load Regulation (Note 2) ΔVOUT /
ΔIOUT
Sourcing: 0mA ≤ IOUT ≤ 15mA
C 1 6
ppm/mA
E 1 7
M 3 9
Sinking: -15mA ≤ IOUT ≤ 0mA
C 1 6
E 1 7
M 7 18
Supply Current IIN
+25µC 1.9 2.9
mA
C, E, M 3.2
Trim-Adjustment Range ΔVOUT Figure 1 C, E, M ±24 ±40 mV
Turn-On Settling Time tON To ±0.01% of final value +25°C 8 µs
Output Noise Voltage (Note 3) en 0.1Hz ≤ f ≤ 10Hz +25°C 2.4 µVp-p
10Hz ≤ f ≤ 1kHz +25°C 2.0 4.0 µVRMS
Temperature Hysteresis (Note 4) +25°C 20 ppm
Long-Term Stability ΔVOUT / t +25°C 20 ppm/
1000h
Electrical Characteristics—MAX6241
MAX6225/MAX6241/MAX6250 Low-Noise, Precision,
+2.5V/+4.096V/+5V Voltage References
www.maximintegrated.com Maxim Integrated
4
Note 1: Temperature coemcrem Is measured by me box method; r. the maximum AV T Is dlwded by AT x v T,
(VIN = +10V, IOUT = 0mA, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
Note 1: Temperature coefficient is measured by the box method; i.e., the maximum ∆VOUT is divided by ∆T x VOUT.
Note 2: Line regulation (∆VOUT / (VOUT x ∆VIN)) and load regulation (∆VOUT/(VOUT x ∆IOUT)) are measured with pulses and do not
include output voltage changes due to die-temperature changes.
Note 3: Noise specifications are 100% tested for the 10Hz to 1kHz bandwidth. Contact factory for 100% noise testing in the 0.1Hz
to 10Hz bandwidth.
Note 4: Temperature hysteresis is specified at TA = +25°C by measuring VOUT before and after changing temperature by +25°C
using the PDIP package.
PARAMETER SYMBOL CONDITIONS TAMIN TYP MAX UNITS
Input Voltage Range VIN C, E, M 8 36 V
Output Voltage VOUT
MAX6250A +25°C 4.999 5.000 5.001
V
MAX6250B +25°C 4.995 5.000 5.005
Output Voltage Temperature
Coefficient (Note 1) TCVOUT
MAX6250AC_A C 1.0 2.0
ppm/°C
MAX6250AE_A E 1.5 3.0
MAX6250AMJA M 2.0 5.0
MAX6250BC_A C 2.5 5.0
MAX6250BE_A E 2.5 7.0
MAX6250BMJA M 2.5 8.0
Line Regulation (Note 2) ΔVOUT /
ΔVIN
8V ≤ VIN ≤ 10V
+25°C 10 18
ppm/V
C 30
E 35
M 45
10V ≤ VIN ≤ 36V
+25°C 2 5
C 7
E 8
M 10
Load Regulation (Note 2) ΔVOUT /
ΔIOUT
Sourcing: 0mA ≤ IOUT ≤ 15mA
C 1 6
ppm/mA
E 1 7
M 3 9
Sinking: -15mA ≤ IOUT ≤ 0mA
C 1 6
E 1 7
M 6 15
Supply Current IIN
+25µC 2.0 3.0
mA
C, E, M 3.3
Trim-Adjustment Range ΔVOUT Figure 1 C, E, M ±30 ±50 mV
Turn-On Settling Time tON To ±0.01% of final value +25°C 10 µs
Output Noise Voltage (Note 3) en 0.1Hz ≤ f ≤ 10Hz +25°C 3.0 µVp-p
10Hz ≤ f ≤ 1kHz +25°C 2.5 5.0 µVRMS
Temperature Hysteresis (Note 4) +25°C 20 ppm
Long-Term Stability ΔVOUT / t +25°C 20 ppm/
1000h
Electrical Characteristics—MAX6250
MAX6225/MAX6241/MAX6250 Low-Noise, Precision,
+2.5V/+4.096V/+5V Voltage References
www.maximintegrated.com Maxim Integrated
5
AV rImV) ,W HWY” MAXMM TEMPERATURE we) MAX6225 \\\ \\\ \ \ \\\ \
(VIN = 10V, IOUT = 0mA, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics
-55 -15 65
MAX6241
NORMALIZED OUTPUT VOLTAGE
vs. TEMPERATURE
-1
1.0
MAX6225
toc
02
TEMPERATURE (°C)
VOUT (mV)
VOUT (ppm)
25 105-35 5 8545 125
0.5
0
-0.5
1.5
-250
-125
0
125
250
375
-0.4
-0.3
-0.2
-0.1
0 0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
-160
-120
-80
-40
40
80
120
160
200
240
280
-55 -15 65
MAX6225
NORMALIZED OUTPUT VOLTAGE
vs. TEMPERATURE
MAX6225
toc
03
TEMPERATURE (°C)
VOUT (mV)
VOUT (ppm)
25 105-35 5 8545 125
-400
-300
-200
-100
0
100
200
300
-40 -30 -20 -10 0 10 20 30 40
MAX6250
CHANGE IN OUTPUT VOLTAGE
vs. OUTPUT CURRENT
MAX6225
toc
04
IOUT (mA)
V
OUT
(mV)
TA = +25°C
TA = -40°C TA = +85°C
-300
-200
-100
0
100
200
300
-40 -30 -20 -10 0 10 20 30 40
MAX6241
CHANGE IN OUTPUT VOLTAGE
vs. OUTPUT CURRENT
MAX6225
toc
05
IOUT (mA)
VOUT (mV)
TA = +25°C
TA = -40°C
TA = +85°C
-250
-200
-150
-100
-50
0
50
100
150
200
-40 -30 -20 -10 0 10 20 30 40
MAX6225
CHANGE IN OUTPUT VOLTAGE
vs. OUTPUT CURRENT
IOUT (mA)
VOUT (mV)
TA = +85°C
TA = -40°C TA = +25°C
MAX6225
toc
06
-20
-10
0
10
20
30
40
50
60
0 5 10 15 20 25 30 35 40
CHANGE IN OUTPUT VOLTAGE
vs. INPUT VOLTAGE
VIN (V)
V
OUT
(ppm)
MAX6225
toc
07
2.0
-1.5
-55 -15 65
MAX6250
NORMALIZED OUTPUT VOLTAGE
vs. TEMPERATURE
-1.0
1.0
MAX6225
toc
01
TEMPERATURE (°C)
VOUT (mV)
VOUT (ppm)
25 105-35 5 8545 125
0.5
0
-0.5
1.5
400
-300
-200
200
100
0
-100
300
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.8
3.0
0 5 10 15 20 25 30 35 40
SUPPLY CURRENT vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
MAX6225 MAX6241
MAX6250
MAX6225 toc08
1.0
1.5
2.0
2.5
3.0
3.5
-55 -35 -15 5 25 45 65 85 105 125
SUPPLY CURRENT vs. TEMPERATURE
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
MAX6241
MAX6250
MAX6225
MAX6225 toc09
MAX6225/MAX6241/MAX6250 Low-Noise, Precision,
+2.5V/+4.096V/+5V Voltage References
Maxim Integrated
6
www.maximintegrated.com
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(VIN = 10V, IOUT = 0mA, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
0
5
10
15
20
25
30
35
40
45
50
10 100 1k 10k
MAX6225
OUTPUT NOISE-VOLTAGE
DENSITY vs. FREQUENCY
FREQUENCY (Hz)
CNR = 0µF
CNR = 1µF
OUTPUT NOISE DENSITY (nV/
Hz)
MAX6225 toc10
0
10
20
30
40
50
60
70
80
90
10 100 1k 10k
MAX6241
OUTPUT NOISE-VOLTAGE
DENSITY vs. FREQUENCY
FREQUENCY (Hz)
MAX6225 toc11
CNR = 0µF
CNR = 1µF
OUTPUT NOISE DENSITY (nV/ Hz)
0
10
20
30
40
50
60
70
80
100
90
10 100 1k 10k
MAX6250
OUTPUT NOISE-VOLTAGE
DENSITY vs. FREQUENCY
FREQUENCY (Hz)
CNR = 0µF
CNR = 1µF
OUTPUT NOISE DENSITY (nV/
Hz)
MAX6225 toc12
MAX6225
0.1Hz to 10Hz NOISE
MAX6225 toc13
V
OUT
, 0.5µV/div
1sec/div
COUT = CNR = 0µF
MAX6241
0.1Hz to 10Hz NOISE
VOUT, 1µV/div
1sec/div
COUT = CNR = 0mF
MAX6225 toc14
MAX6250
0.1Hz to 10Hz NOISE
VOUT, 1µV/div
1sec/div
COUT = CNR = 0µF
MAX6225 toc15
10 1M10k
FREQUENCY (Hz)
100 1k 100k
100
0.01
OUTPUT IMPEDANCE vs. FREQUENCY
0.1
OUTPUT IMPEDANCE (
)
1
10
ISINK = 5mA
ISOURCE = 5mA
MAX6225 toc16
60
70
80
90
100
110
120
10 100 1k 10k
RIPPLE REJECTION
vs. FREQUENCY (CNR = 1µF)
FREQUENCY (Hz)
RIPPLE REJECTION (dB)
MAX6241
MAX6225
MAX6250
MAX6225 toc17
60
65
70
75
80
85
90
95
10 100 1k 10k
RIPPLE REJECTION
vs. FREQUENCY (CNR = 0µF)
MAX6607/08 toc18
FREQUENCY (Hz)
RIPPLE REJECTION (dB)
MAX6225
MAX6241
MAX6250
MAX6225/MAX6241/MAX6250 Low-Noise, Precision,
+2.5V/+4.096V/+5V Voltage References
Maxim Integrated
7
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LOAD-TRANSIENT RESPONSE (SINKINGl MAXGHS MAX6241 MAX6250
(VIN = 10V, IOUT = 0mA, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
2µs/div
LOAD-TRANSIENT RESPONSE (SOURCING)
B
A
A: IOUT, 10mA/div (SOURCING)
B: VOUT, 500µV/div
0mA
-10mA
MAX6225 toc19
2µs/div
LOAD-TRANSIENT RESPONSE (SINKING)
B
A
0mA
10mA
A: IOUT, 10mA/div (SINKING)
B: VOUT, 500µV/div
MAX6225 toc20
1µs/div
LOAD-TRANSIENT RESPONSE
B
A
A: IOUT (10mA SOURCE AND SINK), 20mA/div, AC COUPLED
B: VOUT, 20mV/div, AC COUPLED
+10mA
-10mA
VIN = 10V
COUT = CNR = 0µF
MAX6225 toc21
1µs/div
MAX6225
TURN-ON AND TURN-OFF TRANSIENT RESPONSE
B
A
A: VIN, 10V/div
B: VOUT, 1V/div
+10V
0
CIN = COUT = CNR = 0µF
MAX6225 toc22
1µs/div
MAX6241
TURN-ON AND TURN-OFF TRANSIENT RESPONSE
B
A
A: VIN, 10V/div
B: VOUT, 1V/div
+10V
0
CIN = COUT = CNR = 0µF
MAX6225 toc23
1µs/div
MAX6250
TURN-ON AND TURN-OFF TRANSIENT RESPONSE
B
A
A: VIN, 10V/div
B: VOUT, 1V/div
+10V
0
CIN = COUT = CNR = 0µF
MAX6225 toc24
MAX6225/MAX6241/MAX6250 Low-Noise, Precision,
+2.5V/+4.096V/+5V Voltage References
Maxim Integrated
8
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Detailed Description
Temperature Stability
The MAX6225/MAX6241/MAX6250 are highly stable,
low-noise voltage references that use a low-power
temperature-compensation scheme to achieve laboratory-
standard temperature stability. This produces a nearly flat
temperature curve, yet does not require the power associated
with heated references.
The output voltage can be trimmed a minimum of 0.6%
by connecting a 10kΩ potentiometer between OUT and
GND, and connecting its tap to the TRIM pin, as shown in
Figure 1. The external trimming does not affect temperature
stability.
Noise Reduction
To augment wideband noise reduction, add a 1μF capacitor
to the NR pin (Figure 2). Larger values do not improve
noise appreciably (see Typical Operating Characteristics).
Noise in the power-supply input can affect output noise,
but can be reduced by adding an optional bypass capacitor
to the IN pin and GND.
Bypassing
The MAX6225/MAX6241/MAX6250 are stable with capacitive
load values from 0μF to 100μF, for all values of load
current. Adding an output bypass capacitor can help reduce
noise and output glitching caused by load transients.
Applications Information
Negative Regulator
Figure 3 shows how both a +5V and -5V precision reference
can be obtained from a single unregulated +5V supply.
A MAX681 generates approximately ±9V to operate the
MAX6250 reference and MAX432 inverting amplifier. The
+5V is inverted by the MAX432 chopper-stabilized amplifier.
Resistor R1 is optional, and may be used to trim the
±5V references. R2 and R4 should be matched, both in
absolute resistance and temperature coefficient. R3 is
optional, and is adjusted to set the -5V reference.
Figure 1. Output Voltage Adjustment Figure 2. Noise-Reduction Capacitor
Pin Description
PIN NAME FUNCTION
1, 7, 8 I.C. Internally Connected. Do not use.
2 IN Positive Power-Supply Input
3 NR
Noise Reduction. Optional capacitor
connection for wideband noise reduction.
Leave open if not used (Figure 2).
4 GND Ground
5 TRIM
External Trim Input. Allows ±1% output
adjustment (Figure 1). Leave open if not
used.
6 OUT Voltage Reference Output
IN
8V TO 36V INPUT
REFERENCE OUT
OUT
TRIM 10k
NR
GND
MAX6225
MAX6241
MAX6250
IN
8V TO 36V INPUT
REFERENCE OUT
OUT
TRIM
NR
*OPTIONAL
*
1µF GND
MAX6225
MAX6241
MAX6250
MAX6225/MAX6241/MAX6250 Low-Noise, Precision,
+2.5V/+4.096V/+5V Voltage References
www.maximintegrated.com Maxim Integrated
9
flh Hh
Figure 3. +5V and -5V References from a Single +5V Supply
+Denotes a lead(Pb)-free/RoHS-compliant package.
PART TEMP RANGE PIN-
PACKAGE
MAX
TEMPCO
(ppm/°C)
MAX6241ACPA+ 0°C to +70°C 8 Plastic DIP 2.0
MAX6241BCPA+ 0°C to +70°C 8 Plastic DIP 5.0
MAX6241ACSA+ 0°C to +70°C 8 SO 2.0
MAX6241BCSA+ 0°C to +70°C 8 SO 5.0
MAX6241AEPA+ -40°C to +85°C 8 Plastic DIP 3.0
MAX6241BEPA+ -40°C to +85°C 8 Plastic DIP 7.0
MAX6241AESA+ -40°C to +85°C 8 SO 3.0
MAX6241BESA+ -40°C to +85°C 8 SO 7.0
MAX6241AMJA -55°C to 125°C 8 CERDIP 5.0
MAX6241BMJA -55°C to +125°C 8 CERDIP 8.0
MAX6250ACPA+ 0°C to +70°C 8 Plastic DIP 2.0
MAX6250BCPA+ 0°C to +70°C 8 Plastic DIP 5.0
MAX6250ACSA+ 0°C to +70°C 8 SO 2.0
MAX6250BCSA+ 0°C to +70°C 8 SO 5.0
MAX6250AEPA+ -40°C to +85°C 8 Plastic DIP 3.0
MAX6250BEPA+ -40°C to +85°C 8 Plastic DIP 7.0
MAX6250AESA+ -40°C to +85°C 8 SO 3.0
MAX6250BESA+ -40°C to +85°C 8 SO 7.0
MAX6250AMJA -55°C to +125°C 8 CERDIP 5.0
MAX6250BMJA -55°C to +125°C 8 CERDIP 8.0
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
8 SO S8+5 21-0041 90-0096
8 PDIP P8+3 21-0043
8 CERDIP J8-2 21-0045
Package Information
For the latest package outline information and land patterns
(footprints), go to www.maximintegrated.com/packages. Note
that a “+”, “#”, or “-” in the package code indicates RoHS status
only. Package drawings may show a different suffix character, but
the drawing pertains to the package regardless of RoHS status.
Chip Information
PROCESS: CMOS
Ordering Information (continued)
IN
VCC V+
V-
GND
C2-
C2+
C1-
C1+
+5V INPUT
+REFERENCE OUT
-REFERENCE OUT
OUT
TRIM R1
10k
R4
100k
R2
100k
R3
1k
NR
C1
2.2µF
3.3µF
3.3µF
2.2µF
C2
1µF 2.2µF
C3
1µF
C4
GND
MAX865
MAX6250
MAX432
MAX6225/MAX6241/MAX6250 Low-Noise, Precision,
+2.5V/+4.096V/+5V Voltage References
www.maximintegrated.com Maxim Integrated
10
REVISION
NUMBER
REVISION
DATE DESCRIPTION PAGES
CHANGED
0 9/96 Initial release
4 1/01 Updated Electrical Characteristics Note 3 5
5 3/14 Added lead-free notation to Ordering Information and updated Package Information 1, 10
6 6/19 Updated the unit for TOC19 and TOC20 to the Typical Operating Characteristics 8
Revision History
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
MAX6225/MAX6241/MAX6250 Low-Noise, Precision,
+2.5V/+4.096V/+5V Voltage References
© 2019 Maxim Integrated Products, Inc.
11
For pricing, delivery, and ordering information, please visit Maxim Integrated’s online storefront at https://www.maximintegrated.com/en/storefront/storefront.html.

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