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Precision High-Voltage Reference in SOT23
MAX6043
General Description
Features
The MAX6043 precision voltage reference provides
accurate preset +2.5V, +3.3V, +4.096V, +5.0V, and +10V
reference voltages from up to +40V input voltages. The
MAX6043 features a proprietary temperature coefficient
curvature-correction circuit and laser-trimmed thin-film
resistors that result in a very low temperature coefficient
of 15ppm/°C (max) and excellent initial accuracy of 0.05%
(max). Low temperature drift and low noise make the
MAX6043 ideal for use with high-resolution A/D or D/A
converters.
● +2.5V, +3.3V, +4.096V, +5.0V, or +10V Output
Voltages
● Excellent Temperature Stability: 15ppm/°C (max)
● Tight Initial Accuracy: 0.05% (max)
● Tiny SOT23 Package
● Wide +4.5V to +40V Supply Voltage Range
● Low Noise: 4μV
(typ at 2.5V Output)
P-P
● Short-Circuit Protected
● Wide Operating Temperature Range
The MAX6043 draws 320μA of supply current and sourc-
es 10mA or sinks 0.6mA of load current. The MAX6043
uses bandgap technology for low-noise performance
and excellent accuracy. The MAX6043 does not require
an output bypass capacitor for stability, and is stable
with capacitive loads up to 100μF. Eliminating the output
bypass capacitor saves valuable board area in space-
critical applications. The supply-independent, low supply
current makes the MAX6043 ideal for battery-operated,
high-performance systems.
-40°C to +125°C
● Stable with Capacitive Loads from 0 to 100μF
● No External Capacitors Required for Stability
Pin Configuration
TOP VIEW
I.C.*
GND
I.C.*
1
2
3
6
5
4
OUTS
OUTF
IN
The MAX6043 is available in a 6-pin SOT23 package
and operates over the automotive (-40°C to +125°C)
temperature range.
MAX6043
Applications
● Analog-to-Digital Converters
● Digital-to-Analog Converters
● Digital Voltmeters
SOT23
*INTERNALLY CONNECTED. DO NOT CONNECT.
● Voltage Regulators
● Threshold Detectors
Ordering Information
OUTPUT VOLTAGE
TEMPCO
(PPM/°C)
INITIAL ACCURACY
PART
TOP MARK
(V)
(%)
0.10
0.50
0.10
0.10
MAX6043BAUT25-T
MAX6043CAUT25-T
MAX6043BAUT33-T
MAX6043BAUT41-T
2.500
2.500
3.300
4.096
20
65
20
20
ABDQ
ABDR
ABDS
ABDU
#Denotes an RoHS-compliant device that may include lead that is exempt under the RoHS requirements.
T = Tape and reel.
Ordering Information continued at end of data sheet.
Typical Operating Circuit appears at end of data sheet.
19-3036; Rev 7; 11/21
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2021 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.
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© 2021 Analog Devices, Inc. All rights reserved.