REF4132

+

±

OPA735

+5 V

+5 V

-5 V

-2.5 V

+2.5 V

EN

VIN

VREF

GND

R

1

10 NŸ

R

2

10 NŸ

Load Current (mA)

0

0.04

0.08

0.12

0.16

0.2

0.24

0.28

0.32

0.36

0.4

5

10

0

+25°C

-40°C

+125°C

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Reference

Design

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

REF4132

SNAS794A – JUNE 2020 – REVISED JUNE 2020

REF4132 Low-Drift, Low-Power, Small-Footprint Series Voltage Reference

1

1 Features

1

•

Voltage options: 2.5V, 3V, 3.3V, 4.096V, 5V

•

Initial accuracy: ±0.05% (maximum)

•

Low temperature coefficient :

–

A grade: 12 ppm/°C (maximum)

–

B grade: 30 ppm/°C (maximum)

•

Operating temperature range:

−40°C to +125°C

•

Output current: ±10 mA

•

Low quiescent current: 100 μA (maximum)

•

Output 1/f noise (0.1 Hz to 10 Hz): 15 µVPP/V

•

Excellent long-term stability 30 ppm/1000 hrs

•

Small footprint 5-pin SOT-23 package

2 Applications

•

Data acquisition (DAQ)

•

PLC analog I/O modules

•

Field transmitters

•

Motor drive control module

•

Battery test equipment

•

LCR meters

3 Description

The REF4132 device is a low temperature drift

(12

ppm/°C),

low-power,

high-precision

CMOS

voltage reference, featuring ±0.05% initial accuracy,

low operating current with power consumption less

than 100μA. This device also offers very low output

noise of 15 μVp-p/V, which enables its ability to

maintain high signal integrity with high-resolution data

converters in noise critical systems. Packaged in the

same SOT-23-5 package, REF4132 offers enhanced

specifications and pin-to-pin replacement for LM4128

and LM4132.

Stability and system reliability are further improved by

the low output-voltage hysteresis of the device and

low long-term output voltage drift. Furthermore, the

small size and low operating current of the devices

(100 μA) can benefit portable and battery-powered

applications.

REF4132 is specified for the wide temperature range

of

−40°C to +125°C.

Device Information(1)

PART NAME

PACKAGE

BODY SIZE (NOM)

REF4132

SOT-23 (5)

2.90 mm × 1.60 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Simplified Schematic

Dropout vs. Current Load Over Temperature