MAX6035 Datasheet, PDF (1/14 Pages) Maxim Integrated Products – High-Supply-Voltage, Precision Voltage Reference in SOT23

19-2606; Rev 1; 5/03
High-Supply-Voltage, Precision
Voltage Reference in SOT23
General Description
The MAX6035 is a high-voltage, precision micropower
voltage reference. This three-terminal device is available
with output voltage options of 2.5V, 3.0V, and 5.0V. It is an
excellent upgrade for industry-standard devices such as
the REF02 and REF43. The MAX6035 offers 14x lower
power than the REF02 and 5x lower power than the
REF43, as well as a reduced package size from an 8-pin
SO to a 3-pin SOT23. The MAX6035 features a proprietary
temperature coefficient curvature-correction circuit and
laser-trimmed, thin-film resistors that result in a very low
temperature coefficient of 25ppm/°C (max) and an initial
accuracy of ±0.2% (max).
The MAX6035 typically draws only 73µA of supply cur-
rent and can source 10mA or sink 2mA of load current.
Unlike conventional shunt-mode (two-terminal) refer-
ences that waste supply current and require an external
resistor, this device offers a supply current that is virtu-
ally independent of the supply voltage and does not
require an external resistor. Additionally, this internally
compensated device does not require an external com-
pensation capacitor, but is also stable with capacitive
loads up to 5µF. Eliminating the external compensation
capacitor saves valuable board area in space-critical
applications. The supply independent, ultra-low supply
current makes this device ideal for battery-operated,
high-performance systems.
The MAX6035 is available in a 3-pin SOT23 package
and is specified for operation from -40°C to +125°C.
Applications
4mA to 20mA Industrial
Control Loops
Li+ Battery Chargers
12-Bit A/D and D/A
Converters
Digital Multimeters
Portable Data-Acquisition
Systems
Low-Power Test
Equipment
Typical Operating Circuit
+SUPPLY INPUT (SEE SELECTOR GUIDE)
0.1µF*
IN
OUT
MAX6035
GND
*CAPACITOR IS OPTIONAL.
REFERENCE
OUT
Features
o Wide Supply Voltage Range: Up to 33V
o 25ppm/°C (max) Temperature Coefficient
(-40°C to +85°C)
o ±0.2% (max) Initial Accuracy
o Small 3-Pin SOT23 Package
o 95µA (max) Quiescent Supply Current
o 10mA Source Current, 2mA Sink Current
o No Output Capacitor Required
o Stable with Capacitive Loads up to 5µF
o Output Voltages: 2.5V, 3.0V, 5.0V
Ordering Information
PART
MAX6035AAUR25-T
MAX6035BAUR25-T
MAX6035AAUR30-T
MAX6035BAUR30-T
MAX6035AAUR50-T
MAX6035BAUR50-T
TEMP RANGE
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
PIN -
TOP
PACKAGE MARK
3 SOT23-3 FZMW
3 SOT23-3 FZMX
3 SOT23-3 FZMY
3 SOT23-3 FZMZ
3 SOT23-3 FZNA
3 SOT23-3 FZNB
Selector Guide
PART
MAXIMUM
TEMPCO
(ppm/°C)
(-40°C to +85°C)
MAXIMUM
INITIAL
ACCURACY
(%)
OUTPUT
VOLTAGE
(V)
MAX6035AAUR25
25
0.20
2.5
MAX6035BAUR25
65
0.50
2.5
MAX6035AAUR30
25
0.20
3.0
MAX6035BAUR30
65
0.50
3.0
MAX6035AAUR50
25
0.20
5.0
MAX6035BAUR50
65
0.50
5.0
Pin Configuration
TOP VIEW
IN 1
OUT 2
MAX6035
3 GND
SOT23
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