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INA118

The Texas Instruments INA118 is a precision, low-power instrumentation amplifier. It offers excellent accuracy with features like low offset voltage and high common-mode rejection.

✓ Total Stock: 7,146 pcs

$ Price Range: $0.99

INA118 Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Romaks Technologies ✓ Non-Authorised Inventory information	7,146 pcs On Request	7146 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

INA118 Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Texas Instruments
Bandwidth	70 kHz
Gain	1 to 10000
Mounting Type	Surface Mount
Operating Temperature Range	-40°C to 85°C
Quiescent Current	350 µA
Supply Voltage	±2.25 V to ±18 V

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INA118 Description

Short technical summary and product information.

The Texas Instruments INA118 is a versatile, low-power, general-purpose instrumentation amplifier designed for high accuracy applications. Its three-op-amp design and small size make it suitable for a wide range of uses.

Key electrical specifications include a low offset voltage of 50 µV maximum, a low offset drift of 0.5 µV/°C maximum, and a high common-mode rejection ratio (CMRR) of 110 dB minimum at a gain of 1000. The device operates over a wide supply range of ±2.25 V to ±18 V and consumes only 350 µA of quiescent current, making it ideal for battery-operated systems.

The gain can be set from 1 to 10000 using a single external resistor. Internal input protection can withstand up to ±40 V without damage. The INA118 is available in 8-pin plastic DIP and SO-8 surface-mount packages, specified for an operating temperature range of –40°C to +85°C.

Applications include pressure and temperature transmitters, weigh scales, electrocardiograms (ECG), analog input modules, and data acquisition systems.

INA118 Quick Information

Product Type: Instrumentation Amplifier

Canonical Name: INA118 Precision, Low-Power Instrumentation Amplifier

Subcategory: Instrumentation Amplifiers

INA118 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

INA118 Estimated Pricing

Qty	Low	High
1+	$0.99	$0.99

Estimated market price range - modelled values for guidance only, not live distributor offers.

INA118 Features

Low offset voltage: 50 µV maximum
Low offset drift: 0.5 µV/°C maximum
High common-mode rejection: 110 dB minimum
Wide supply range: ±2.25 V to ±18 V
Low quiescent current: 350 µA

INA118 Applications

Pressure transmitter applications
Temperature transmitter applications
Weigh scale designs
Electrocardiogram (ECG) systems
Data acquisition modules

INA118 FAQs

7 frequently asked questions generated from this part’s specifications.

What is the supply voltage range for the INA118?

±2.25 V to ±18 V.

What package options are available for the INA118?

SOIC (8) and PDIP (8).

What is the operating temperature range?

-40°C to 85°C.

What is the maximum input offset voltage?

50 µV.

What is the gain range?

1 to 10000, set by a single external resistor.

What is the common-mode rejection ratio?

110 dB minimum at G=1000.

Does the INA118 have input protection?

Yes, inputs are protected to ±40 V.