The TP181 series of zero-drift,bi-directional current sense amplifier can sense voltage drops across shunts at commonmode voltages from–0.3V to 36V,independent of the supply voltage.Three fixed gains are available:50V/V,100V/V and 200V/V.The low offset of the zero-drift architecture enables current sensing with maximum drops across the shunt as low as 10mV full-scale.TP181 devices operate from a single+2.7V to 30V power supply,with drawing a typical of 120uA of supply current.All versions are specified from–40°C+125°C,and offered in SC70-6 packages.

Features

VOLTAGE OFFSET:±100uV(MAX)

WIDE COMMON MODE VOLTAGE:-0.3V to+36V

SUPPLY VOLTAGE:2.7V to+30V

ACCURACY and ZERO-DRIFT PERFORMANCE

±1%Gain Error(Max over temperature)

0.5μV/°C Offset Drift(Max)

10ppm/°C Gain Drift(Max)

THREE GAIN OPTIONS for VOLTAGE OUTPUT

TP181A1:50V/V

TP181A2:100V/V

TP181A3:200V/V

LOW SUPPLY CURRENT:120uA(TYP)

Rail-to-Rail Output

PACKAGE:SC70-6

Industrial–40°C to 125°C Operation Range

ESD Rating:Robust 2KV–HBM,2KV–CDM

Higher performance Drop-In Compatible With

INA213,INA214,INA199,NCS199 Products

Applications

CURRENT SENSING(High−Side/Low−Side)

BATTERY CHARGERS

POWER MANAGEMENT

CELL PHONE CHARGER

ELECTRICAL CIGIRATE

WIRELESS CHARGER

TELECOM EQUIPMENT