10µA, Low-Dropout,

Precision Voltage References

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Maxim Integrated Products

1

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

For small orders, phone 1-800-835-8769.

General Description

The MAX872/MAX874 precision 2.5V and 4.096V micro-

power voltage references consume a maximum of only

10µA and operate from supply voltages up to 20V. The

combination of ultra-low quiescent current and low

200mV dropout makes them ideal for battery-powered

equipment. They source and sink up to 500µA with only

200mV input voltage headroom, which makes the 2.5V

MAX872 ideal for use with a 3V supply and the 4.096V

MAX874 ideal for use with a 5V supply.

Initial accuracy of 0.2% at +25°C (±5mV for the MAX872,

±8mV for the MAX874) and low 40ppm/°C max drift make

these references suitable for a wide range of precision

applications.

Applications

Hand-Held Instruments

Battery-Operated Equipment

Power Supplies

Features

o Output Voltage

2.500V ±0.2% (MAX872)

4.096V ±0.2% (MAX874)

o Wide Operating Voltage Range

2.7V to 20V (MAX872)

4.3V to 20V (MAX874)

o 10µA Max Supply Current

o 40ppm/°C Max Drift Over Extended Temp. Range

o Line Regulation Over Temp.

20µV/V (MAX872)

75µV/V (MAX874)

o Load Regulation Over Temp.

0.6mV/mA Max (MAX872)

1.0mV/mA Max (MAX874)

o ±500µA Sink/Source Current

TRIM

GND

1

2

8

7

COMP

I.C.

TEMP

I.C.

DIP/SO

TOP VIEW

3

4

6

5

MAX872

MAX874

GND

3.0V (MAX872)

5.0V (MAX874)

REFERENCE WITH TRIMMED OUTPUT

TRIM

MAX872

MAX874

Typical Operating Circuit

19-0005; Rev 2; 6/97

PART

MAX872CPA

MAX872CSA

MAX872C/D

0°C to +70°C

0°C to +70°C

0°C to +70°C

TEMP. RANGE

PIN-PACKAGE

8 Plastic DIP

8 SO

Dice*

*

Dice are specified at +25°C only.

Pin Configuration

Ordering Information

MAX872EPA

MAX872ESA

-40°C to +85°C

-40°C to +85°C

8 Plastic DIP

8 SO

MAX874CPA

MAX874CSA

MAX874C/D

0°C to +70°C

0°C to +70°C

0°C to +70°C

8 Plastic DIP

8 SO

Dice*

MAX874EPA

MAX874ESA

-40°C to +85°C

-40°C to +85°C

8 Plastic DIP

8 SO