INA213

REF1930

3.0 V

1.5 V

EN

ADC

GND

REF

Power

Supply

-0.05

-0.04

-0.03

-0.02

-0.01

0

0.01

0.02

0.03

0.04

0.05

±75

±50

±25

0

25

50

75

100

125

150

Temperature (

ƒC)

C001

V

REF

V

BIAS

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Folder

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Reference

Design

REF1925, REF1930, REF1933, REF1941

SBOS697 – SEPTEMBER 2014

1 Features

3 Description

Applications with only a positive supply voltage often

1

•

require an additional stable voltage in the middle of

Use in Single-Supply Systems

the analog-to-digital converter (ADC) input range to

•

Excellent Temperature Drift Performance:

bias input bipolar signals. The REF19xx provides a

–

25 ppm/°C (max) from –40°C to 125°C

•

High Initial Accuracy: ±0.1% (max)

bias the input bipolar signals.

•

The

REF19xx

offers

excellent

temperature

drift

–

6 ppm/°C (max) from –40°C to 85°C

(25 ppm/°C, max) and initial accuracy (0.1%) on both

–

7 ppm/°C (max) from –40°C to 125°C

•

Microsize Package: SOT23-5

quiescent current less than 430 µA. In addition, the

•

Low Dropout Voltage: 10 mV

precision of 6 ppm/°C (max) across the temperature

•

High Output Current: ±20 mA

range of –40°C to 85°C. All these features increase

•

Low Quiescent Current: 360

μA

the precision of the signal chain and decrease board

space, while reducing the cost of the system as

•

Line Regulation: 3 ppm/V

compared to a discrete solution. Extremely low

•

Load Regulation: 8 ppm/mA

dropout voltage of only 10 mV allows operation from

very low input voltages, which can be very useful in

2 Applications

battery-operated systems.

•

Digital Signal Processing:

–

Power Inverters

excellent specifications and can sink and source

current equally well. Very good long-term stability and

–

Motor Controls

low noise levels make these devices ideally-suited for

•

Current Sensing

high-precision industrial applications.

•

Industrial Process Controls

•

Medical Equipment

Device Information(1)

PART NAME

PACKAGE

BODY SIZE (NOM)

•

Data Acquisition Systems

REF19xx

SOT (5)

2.90 mm × 1.60 mm

•

Single-Supply Systems

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

the end of the datasheet.

space

space

Application Example

1

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.