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CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

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40V Precision Single Supply Rail-to-Rail Output

Low Power Operational Amplifiers

ISL28118, ISL28218

The ISL28118 and ISL28218 are single and dual

precision, single supply rail-to-rail output amplifiers with

a common mode input voltage range extending to 0.5V

below the V- rail. These op amps feature low power, low

offset voltage, and low temperature drift, making them

the ideal choice for applications requiring both high DC

accuracy and AC performance. The devices can operate

from single (3V to 40V) or dual (±1.5V to ±20V)

supplies. The combination of precision and small

footprint provides the user with outstanding value and

flexibility relative to similar competitive parts.

Applications for these amplifiers include precision

instrumentation, data acquisition, precision power supply

controls, and industrial controls.

Both parts are offered in 8 Ld TDFN, 8 Ld SOIC and 8 Ld

MSOP packages. All devices are offered in standard pin

configurations and operate over the extended

temperature range of -40°C to +125°C.

Features

• Rail-to-Rail Output

• Below-Ground (V-) Input Capability to -0.5V

• Single Supply Range . . . . . . . . . . . . . . . . 3V to 40V

• Low Current Consumption . . . . . . . . . . . . . . 850µA

• Low Noise Voltage . . . . . . . . . . . . . . . . 5.6nV/√Hz

• Low Noise Current . . . . . . . . . . . . . . . . 355fA/√Hz

• Low Input Offset Voltage

- ISL28118 . . . . . . . . . . . . . . . . . . . . 150µV Max.

- ISL28218 . . . . . . . . . . . . . . . . . . . . 230µV Max.

• Superb Offset Voltage Temperature Drift

- ISL28118 . . . . . . . . . . . . . . . . . . 1.2µV/°C, Max.

- ISL28218 . . . . . . . . . . . . . . . . . . 1.4µV/°C, Max.

• Operating Temperature Range . . . .-40°C to +125°C

• No Phase Reversal

Applications

• Precision Instruments

• Medical Instrumentation

• Data Acquisition

•Power Supply Control

• Industrial Process Control

Typical Application

Input Offset Voltage vs Input

IN-

IN+

ISL28118

+3V

V-

V+

10kΩ

10kΩ

-

+

100kΩ

100kΩ

LOAD

SINGLE-SUPPLY, LOW-SIDE CURRENT SENSE AMPLIFIER

GAIN = 10

to 40V

INPUT COMMON MODE VOLTAGE (V)

-500

-400

-300

-200

-100

0

100

200

300

400

500

-17 -16 -15 -14 -13 -12

13

14

15

10 11

12

-40°C

+25°C

+125°C

November 22, 2010

FN7532.1