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INA240A1PW

The Texas Instruments INA240A1PW is a voltage-output, current-sense amplifier with enhanced PWM rejection. It accurately senses voltage drops across shunt resistors over a wide common-mode range.

✓ Total Stock: 37,057 pcs

$ Price Range: $1.14

INA240A1PW Available from 2 distributors

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Romaks Technologies ✓ Non-Authorised Inventory information	30,644 pcs On Request	30644 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Xingangxin ✓ Non-Authorised Inventory information	6,413 pcs On Request	6413 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

INA240A1PW Specifications Quick View

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Category	New Products
Manufacturer Name	Texas Instruments

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INA240A1PW Description

Short technical summary and product information.

The Texas Instruments INA240A1PW is a high/low-side, bi-directional, zero-drift current sense amplifier designed for applications requiring enhanced Pulse Width Modulation (PWM) rejection. It can sense voltage drops across shunt resistors within a wide common-mode voltage range of -4 V to 80 V, independent of the supply voltage.

This amplifier operates from a single 2.7-V to 5.5-V supply and features a bandwidth of 400 kHz. It offers multiple gain options (20, 50, 100, 200 V/V) with a maximum gain error of 0.2%. The device boasts a low input offset voltage of ±25 µV maximum and a low input offset drift of 0.05 µV/°C typical.

The INA240A1PW is housed in an 8-TSSOP package with dimensions of 6.4 x 3 mm. Its operating temperature range is -40°C to 125°C. The enhanced PWM rejection capability makes it suitable for systems using PWM signals, such as motor drives and solenoid control systems, ensuring accurate current measurements without significant output ripple.

Key specifications include a minimum CMRR of 120 dB and a maximum quiescent current of 2.6 mA. The device is RoHS3 compliant and has an MSL rating of 1.

INA240A1PW Quick Information

Product Type: Current Sense Amplifier

Series: INA240

Canonical Name: Texas Instruments INA240A1PW High/Low Side, Bi-Directional Zero-Drift Current Sense Amplifier with Enhanced PWM Rejection

Subcategory: Power Management

INA240A1PW Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

INA240A1PW Estimated Pricing

Qty	Low	High
1+	$1.14	$1.14

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

INA240A1PW Features

High/low side bi-directional current sensing.
Enhanced PWM rejection for noisy systems.
Wide -4V to 80V common-mode voltage range.
Low input offset voltage and drift.
Compact 8-TSSOP package.

INA240A1PW Applications

Motor drive current monitoring.
Solenoid control systems.
Power supply current sensing.
Battery charge management.
Industrial automation.

INA240A1PW FAQs

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

What is the operating temperature range of the INA240A1PW?

-40°C to 125°C.

What package is the INA240A1PW available in?

8-TSSOP package with dimensions 4.4 mm x 3 mm and 0.65 mm pitch.

What is the supply voltage range for the INA240A1PW?

2.7V to 5.5V with nominal 5V.

What is the bandwidth of the INA240A1PW?

400 kHz.

What gain options are available?

Selectable gains of 20, 50, 100, and 200 V/V.

What is the common-mode voltage range?

-4V to 80V, with specified 12V.

What is the minimum CMRR?

120 dB.