Features

? Offset Voltage: ±250 μV (MAX)

? Wide Common-Mode Voltage: 2.7 V to 30 V

? Accuracy and Zero-Drift Performance

? ±1% Gain Error (Max over temperature)

? 0.5μV/°C Offset Drift (Max)

? 10 ppm/°C Gain Drift (Max)

? Four Gain Options:

? TPA183A1: 25 V/V

? TPA183A2: 50 V/V

? TPA183A3: 100 V/V

? TPA183A4: 200 V/V

? Quiescent Current (IN+): 220 μA (Maximum)

? Rail-to-Rail Output

? Package: SOT23-5

? Industrial ?40°C to 125°C Operation Range

? ESD Rating: Robust 2 kV – HBM, 2 kV – CDM

Description

The TPA183 series of zero-drift, unidirectional current

sense amplifiers can sense voltage drops across

shunts at common-mode voltages from 2.7 V to 30 V.

The TPA183 series supports a voltage output with

options of four fixed gains: 25 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.

The TPA183 does not have a separate VCC supply

voltage pin. The operating supply voltage is internally

connected to IN+ pin, drawing a maximum of 220 μA

quiescent current.

All versions are specified from –40°C +125°C and

offered in the SOT23-5 package.

Applications

? Current Sense (High?Side/Low?Side)

? Power Management

? Battery Chargers