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60k

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INA118

Ref

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G = 1 +

50k

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–

+

5

Over-Voltage

Protection

25k

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Protection

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INA118

SBOS027A – SEPTEMBER 2000 – REVISED JANUARY 2016

INA118 Precision, Low Power Instrumentation Amplifier

1 Features

3 Description

The

INA118

is

a

low-power,

general-purpose

1

•

Low Offset Voltage: 50-µV Maximum

instrumentation amplifier offering excellent accuracy.

•

Low Drift: 0.5-µV/°C Maximum

The device's versatile, 3-op amp design and small

•

Low Input Bias Current: 5-nA Maximum

size make it ideal for a wide range of applications.

Current-feedback

input

circuitry

provides

wide

•

High CMR: 110-dB Minimum

bandwidth, even at high gain (70 kHz at G = 100).

•

Inputs Protected to ±40 V

A single external resistor sets any gain from 1 to

•

Wide Supply Range: ±1.35 to ±18 V

10000. Internal input protection can withstand up to

•

Low Quiescent Current: 350-µA

±40 V without damage.

•

8-Pin Plastic DIP, SO-8

The INA118 is laser-trimmed for low offset voltage

(50 µV), drift (0.5 µV/°C), and high common-mode

2 Applications

rejection (110 dB at G = 1000). The INA118 operates

•

Bridge Amplifiers

with power supplies as low as ±1.35 V, and quiescent

current is only 350 µA, making the device ideal for

•

Thermocouple Amplifiers

battery-operated systems.

•

RTD Sensor Amplifiers

The INA118 is available in 8-pin plastic DIP and SO-8

•

Medical Instrumentation

surface-mount packages, specified for the –40°C to

•

Data Acquisition

+85°C temperature range.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

SOIC (8)

3.91 mm × 4.90 mm

INA118

PDIP (8)

6.35 mm × 9.81 mm

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

the end of the data sheet.

Simplified Schematic

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.