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INA240A4EDRQ1

AEC-Q100, -4 to 80V, bi-directional, ultra-precise current sense amplifier w/ enhanced pwm rejection

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

INA240A4EDRQ1
Datasheet:

INA240A4EDRQ1 Datasheet (PDF)
genericPartNumber:

INA240-Q1
partDescription:

AEC-Q100, -4 to 80V, bi-directional, ultra-precise current sense amplifier w/ enhanced pwm rejection
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INA240A4EDRQ1 General Description

The INA240 -Q1 device is an automotive-qualified, voltage-output, current-sense amplifier with enhanced PWM rejection that can sense drops across shunt resistors over a wide common-mode voltage range from –4 V to 80 V, independent of the supply voltage. The negative common-mode voltage allows the device to operate below ground, accommodating the flyback period of typical solenoid applications. Enhanced PWM rejection provides high levels of suppression for large common-mode transients (ΔV/Δt) in systems that use pulse width modulation (PWM) signals (such as motor drives and solenoid control systems). This feature allows for accurate current measurements without large transients and associated recovery ripple on the output voltage.

This device operates from a single 2.7-V to 5.5-V power supply, drawing a maximum of 2.4 mA of supply current. Four fixed gains are available: 20 V/V, 50 V/V, 100 V/V, and 200 V/V. The low offset of the zero-drift architecture enables current sensing with maximum drops across the shunt as low as 10-mV full-scale. Grade 1 versions are specified over the extended operating temperature range (–40°C to +125°C) and are offered in an 8-pin TSSOP and 8-pin SOIC packages. Grade 0 versions are specified over the extended operating temperature range (–40°C to +150°C) and are offered in an 8-pin SOIC package.

Key Features

AEC-Q100 Qualified for Automotive Applications
- Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
- Temperature Grade 0: –40°C to +150°C Ambient Operating Temperature Range
- HBM ESD Classification Level H2
- CDM ESD Classification Level C5
Functional Safety-Capable
- Documentation available to aid functional safety system design
Enhanced PWM Rejection
Excellent CMRR:
- 132-dB DC CMRR
- 93-dB AC CMRR at 50 kHz
Wide Common-Mode Range: –4 V to 80 V
Accuracy:
- Gain Error: 0.20% (Maximum) With 2.5 ppm/°C (Maximum Drift)
- Offset Voltage: ±25 µV (Maximum) With 250 nV/°C (Maximum Drift)
Available Gains:
- INA240A1-Q1: 20 V/V
- INA240A2-Q1: 50 V/V
- INA240A3-Q1: 100 V/V
- INA240A4-Q1: 200 V/V

Specifications

genericPartNumber	INA240-Q1	orderablePartNumber	INA240A4EDRQ1
partDescription	AEC-Q100, -4 to 80V, bi-directional, ultra-precise current sense amplifier w/ enhanced pwm rejection	statusDisplay	ACTIVE
statusDescription	This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.