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INA240

The Texas Instruments INA240 is a voltage-output, current-sense amplifier designed for precise current measurements. It offers enhanced PWM rejection and a wide common-mode voltage range.

✓ Total Stock: 22,600 pcs

$ Price Range: $1.14

INA240 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	22,600 pcs On Request	22600 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

INA240 Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Texas Instruments
Bandwidth	400 kHz
Quiescent Current	2.4 mA
Slew Rate	2 V/µs

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INA240 Description

Short technical summary and product information.

The Texas Instruments INA240 is an ultra-precise, bidirectional current sense amplifier featuring enhanced Pulse Width Modulation (PWM) rejection. It is designed to accurately sense voltage drops across shunt resistors within a wide common-mode voltage range of -4 V to 80 V, independent of the supply voltage.

Key electrical specifications include a gain error of 0.20% maximum, a gain drift of 2.5 ppm/°C maximum, an offset voltage of ±25 μV maximum, and an offset drift of 250 nV/°C maximum. The device offers four fixed gain options: 20 V/V, 50 V/V, 100 V/V, and 200 V/V. It operates from a single 2.7-V to 5.5-V supply and draws a quiescent current of 2.4 mA maximum.

The INA240 boasts excellent Common-Mode Rejection Ratio (CMRR), with 132-dB DC CMRR and 93-dB AC CMRR at 50 kHz. This enhanced PWM rejection capability is crucial for systems using PWM signals, such as motor drives and solenoid control systems, allowing for accurate current measurements without significant output ripple.

Available in 8-pin TSSOP and 8-pin SOIC packages, the INA240 is suitable for applications including motor controls, solenoid and valve controls, power management, actuator controls, pressure regulators, and telecom equipment. It operates over an extended temperature range of -40°C to +125°C.

INA240 Quick Information

Product Type: Current Sense Amplifier

Series: INA240

Canonical Name: INA240 Bidirectional Ultra-Precise Current Sense Amplifier

Subcategory: Current Sense Amplifiers

INA240 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

INA240 Estimated Pricing

Qty	Low	High
1+	$1.14	$1.14

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

INA240 Features

Ultra-precise bidirectional current sense amplifier.
Enhanced PWM rejection for noisy systems.
Wide -4V to 80V common-mode voltage range.
High accuracy with low offset and drift.
Multiple fixed gain options available.

INA240 Applications

Ideal for motor control applications.
Suitable for solenoid and valve controls.
Used in power management systems.
Applicable to actuator control circuits.
Supports telecom equipment designs.

INA240 FAQs

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

What is the operating temperature range for the INA240?

The operating temperature range is -40°C to +125°C.

What are the available gain options for the INA240?

The available gain options are 20 V/V, 50 V/V, 100 V/V, and 200 V/V.

What is the common-mode voltage range of the INA240?

The common-mode voltage range is -4 V to 80 V.

What is the maximum gain error of the INA240?

The maximum gain error is 0.20%.

What is the maximum offset voltage for the INA240?

The maximum offset voltage is ±25 μV.

What supply voltage does the INA240 operate from?

The INA240 operates from a supply voltage of 2.7 V to 5.5 V.

What packages are available for the INA240?

The INA240 is available in 8-pin TSSOP and 8-pin SOIC packages.