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DCS

5V Op Amps: ISL28233, ISL28433

Wireless Strain Gauge Sensor

Micropower,

Chopper Stabilized, RRIO

Operational Amplifiers

Key Features

• Low Input Offset Voltage: 6μV, Max.

• Low Offset Drift: 0.05μV/°C, Max.

• Input Bias Current: 180pA, Max.

• Quiescent Current (per amp): 8μA, Typ.

• Single Supply Range: 65V to +6.0V

• Temperature Range: -40°C to +125°C

• Rail-to-Rail Inputs and Output

The ISL28233 and ISL28433 are dual and quad

micropower, chopper stabilized operational

amplifiers that are optimized for single and dual

supply operation from 1.8V to 6.0V. Their low supply

current of 18μA and wide input range enable the

ISL28233, ISL28433 to be excellent general purpose

op amps for a wide range of applications.

Typical Application Circuit - Temperature Measurement

+

-

V+

VREF

ISL21009

ISL21090

V-

Intersil

Low Drift Precision Op Amps

Digital Potentiometer

ISL22323

iso-block

Temp

Diode

Zero Drift

ADC

12-14bit

SAR

Strain

Gauge

Sensor

Out+

IN+

IN-

Wireless Transmitter

V-

V+

51µW

3.3mW

µController

TX

ISL54051

ISL2671286

ISL2632X

Ultralow Power Chopper Stabilized

Zero Offset Op Amp

ISL28133

• SOT-23 package

1.6mm x 1.6mm µTDFN

12-Bit, 20kSPS SAR ADC

• SOT-23 package

3mm x 3mm DFN

ISL78301

High Voltage LDO

ISL98012

Wide Vin Boost

Regulator

Power Supply Solutions

Analog Input

Analog Output

Control

Sensors

Power

Evalboard

Available!

Evalboard

Available!

Low Power Analog Signal Conditioning

Part Number

Supply

Voltage (V) Rail-To-Rail

Vos Max

@ 25°C

TCVos

Max

Ib Max

@

25°C

CMRR

min @

25°C

PSRR

min @

25°C

Is Max

@

25°C GBW

Slew

Rate

Noise

0.1 to

10Hz

Voltage

Noise @

1kHz

Package

Single

Dual

Quad

Min Max

In

Out

µV

µV/°C

nA

dB

dB

mA

MHz

V/µs

µVpp

nV/√Hz

Single

Dual

Quad

ISL28133* ISL28233 ISL28433 1.8

5.5

Yes

Yes

6

0.05

0.18

118

110

0.025

0.4

0.2

1

65

SC70, SOT23,

TDFN

MSOP, SOIC,

TDFN

SOIC, TSSOP,

TDFN

ISL28134

2.25

6

Yes

Yes

2.5

0.015

0.3

120

120

0.900

3.5

1.5

0.25

10

SOIC

*Some specifications will differ, please check data sheet for actual parameters and/or conditions

-0.50

-0.40

-0.30

-0.20

-0.10

0.00

0.10

0.20

0.30

0.40

0.50

0

1

2

3

4

5

6

7

8

9 10 11 12 13 14 15

Months

Best in Class Performance for Precision and Drift

Zero Drift