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MAX6035：High-Supply-Voltage, Precision Voltage Reference in SOT23

Low-Power Voltage Reference in SOT23 Replaces Industry-Standard REF02 and REF43

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 current and can source 10mA or sink 2mA of load current. Unlike conventional shunt-mode (two-terminal) references that waste supply current and require an external resistor, this device offers a supply current that is virtually independent of the supply voltage and does not require an external resistor. Additionally, this internally compensated device does not require an external compensation 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.

Key Features Wide Supply Voltage Range: Up to 33V 25ppm/°C (max) Temperature Coefficient (-40°C to +85°C) ±0.2% (max) Initial Accuracy 95µA (max) Quiescent Supply Current 10mA Source Current, 2mA Sink Current No Output Capacitor Required Stable with Capacitive Loads up to 5µF

MAX6035: Typical Operating Circuit Applications/Uses 12-Bit A/D and D/A Converters 4mA to 20mA Industrial Control Loops Digital Multimeters Li+ Battery Chargers Low-Power Test Equipment Portable Data-Acquisition Systems

DataSheet

Parametrics

Quality and Environmental Data

• MAX6035.pdf

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