General Description

The MAX6012/MAX6021/MAX6025/MAX6030/MAX6041/

MAX6045/MAX6050 precision, low-dropout, micropower

voltage references are available in miniature SOT23-3

surface-mount packages. They feature a proprietary

curvature-correction circuit and laser-trimmed thin-film

resistors that result in a low temperature coefficient of

<15ppm/°C and initial accuracy of better than 0.2%.

These devices are specified over the extended temper-

ature range.

These series-mode voltage references draw only 27µA

of quiescent supply current and can sink or source up

to 500µA of load current. Unlike conventional shunt-

mode (two-terminal) references that waste supply cur-

rent and require an external resistor, devices in the

MAX6012 family offer a supply current that’s virtually

independent of supply voltage (with only a 0.8µA/V vari-

ation with supply voltage) and do not require an external

resistor. Additionally, these internally compensated

devices do not require an external compensation

capacitor and are stable with up to 2.2nF of load capac-

itance. Eliminating the external compensation capacitor

saves valuable board area in space-critical applications.

Their low dropout voltage and supply-independent,

ultra-low supply current make these devices ideal for

battery-operated, low-voltage systems.

Applications

Hand-Held Equipment

Data Acquisition Systems

Industrial and Process-Control Systems

Battery-Operated Equipment

Hard-Disk Drives

Features

o 0.2% (max) Initial Accuracy

o 15ppm/°C (max) Temperature Coefficient

o 35µA (max) Quiescent Supply Current

o ±500µA Output Source and Sink Current

o 100mV Dropout at 500µA Load Current

o 0.12µV/µA Load Regulation

o 8µV/V Line Regulation

Precision, Low-Power, Low-Dropout,

SOT23-3 Voltage References

________________________________________________________________ Maxim Integrated Products

1

IN

+SUPPLY INPUT (SEE SELECTOR GUIDE)

OUT

REFERENCE

OUT

2.2nF MAX*

*CAPACITORS ARE OPTIONAL

GND

MAX6012

MAX6021

MAX6025

MAX6030

MAX6041

MAX6045

MAX6050

*

Typical Operating Circuit

19-4777; Rev 3; 4/01

PART

MAX6012AEUR-T

MAX6012BEUR-T

MAX6021AEUR-T -40°C to +85°C

-40°C to +85°C

-40°C to +85°C

TEMP. RANGE

PIN-

PACKAGE

3 SOT23-3

3 SOT23-3

3 SOT23-3

Ordering Information

TOP

MARK

FZAP

FZDA

FZAU

MAX6021BEUR-T

MAX6025AEUR-T

MAX6025BEUR-T

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

3 SOT23-3

3 SOT23-3

3 SOT23-3

FZDF

FZAQ

FZDB

MAX6041AEUR-T

MAX6041BEUR-T

-40°C to +85°C

-40°C to +85°C

3 SOT23-3

3 SOT23-3

FZAR

FZDC

Pin Configuration appears at end of data sheet.

5.000

MAX6050

4.500

4.096

MAX6041

MAX6045

2.500

MAX6025

2.5 to 12.6

2.048

2.5 to 12.6

1.247

MAX6012

MAX6021

INPUT VOLTAGE (V)

OUTPUT

VOLTAGE (V)

PART

Selector Guide

MAX6045AEUR-T -40°C to +85°C

3 SOT23-3

FZAS

MAX6045BEUR-T

-40°C to +85°C

3 SOT23-3

FZDD

MAX6050AEUR-T -40°C to +85°C

3 SOT23-3

FZAT

MAX6050BEUR-T

-40°C to +85°C

3 SOT23-3

FZDE

MAX6030AEUR-T -40°C to +85°C

3 SOT23-3

FZDW

MAX6030BEUR-T

-40°C to +85°C

3 SOT23-3

FZDX

3.000

MAX6030

For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.