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INA4181A3QPWRQ1
Integrated Circuits (ICs)

INA253A3IPW

Obsolete
Texas Instruments

80V, BI-DIRECTIONAL, PRECISION CURRENT SENSE AMP W/PWM REJECTION & INT. SHUNT RESISTOR

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INA4181A3QPWRQ1
Integrated Circuits (ICs)

INA253A3IPW

Obsolete
Texas Instruments

80V, BI-DIRECTIONAL, PRECISION CURRENT SENSE AMP W/PWM REJECTION & INT. SHUNT RESISTOR

Technical Specifications

Parameters and characteristics for this part

SpecificationINA253A3IPW
-3db Bandwidth350 kHz
Amplifier TypeCurrent Sense
Current - Input Bias90 pA
Current - Supply1.8 mA
Mounting TypeSurface Mount
Number of Circuits1
Operating Temperature [Max]125 °C
Operating Temperature [Min]-40 °C
Package / Case20-TSSOP
Package / Case [x]0.173 in
Package / Case [y]4.4 mm
Slew Rate2.4 V/µs
Supplier Device Package20-TSSOP
Voltage - Supply Span (Max) [Max]5.5 V
Voltage - Supply Span (Min) [Min]2.7 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyTube 1$ 6.31
10$ 4.26
25$ 3.73
100$ 3.14
250$ 2.85
500$ 2.67
Texas InstrumentsTUBE 1$ 3.79
100$ 3.32
250$ 2.33
1000$ 1.88

Description

General part information

INA253-Q1 Series

The INA253-Q1 is an automotive, voltage-output, current sense amplifier with an integrated shunt resistor of 2 mΩ. The INA253-Q1 monitors bidirectional currents over a wide common-mode range from –4 V to +80 V, independent of the supply voltage. Three fixed gains are available: 100 mV/A, 200 mV/A, and 400 mV/A. The integration of the precision resistor with a zero-drift chopped amplifier provides calibration-equivalent measurement accuracy, ultra-low temperature-drift performance of 15 ppm/ °C, and an optimized Kelvin layout for the sensing resistor.

The INA253-Q1 is designed with enhanced PWM rejection circuitry to suppress large (dv/dt) signals that enable real-time continuous current measurements. The measurements are critical for in-line current measurements in a motor-drive application, and for solenoid valve-control applications.

This device operates from a single 2.7-V to 5.5-V power supply, drawing a maximum of 3 mA of supply current. All gain versions are specified over the operating temperature range of –40 °C to +125 °C, and are available in a 20-pin TSSOP package.