INA139NA/250G4 Part Information

Details for INA139NA/250G4 by Texas Instruments

Semiconductors - ICs>Amplifiers & Comparators>Current Sense Amplifiers

Part Description

The INA139 and INA169 are high-side, unipolar, current shunt monitors. Wide input common-mode voltage range, high-speed, low quiescent current, and tiny SOT-23 packaging enable use in a variety of applications. Input common-mode and power-supply voltages are independent and can range from 2.7 V to 40 V for the INA139 and 2.7 V to 60 V for the INA169. Quiescent current is only 60 µA, which permits connecting the power supply to either side of the current measurement shunt with minimal error. The device converts a differential input voltage to a current output. This current is converted back to a voltage with an external load resistor that sets any gain from 1 to over 100. Although designed for current shunt measurement, the circuit invites creative applications in measurement and level shifting. Both the INA139 and INA169 are available in 5-pin SOT-23 packages, and are specified for the –40°C to 85°C temperature range.

Part Downloads

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Part Features

  • 5-Pin, SOT-23 Packages
  • Complete Unipolar High-side Current Measurement Circuit
  • INA139: 2.7 V to 40 V
  • INA169: 2.7 V to 60 V
  • Independent Supply and Input Common-Mode Voltages
  • Low Quiescent Current: 60 u00b5A (Typical)
  • Single Resistor Gain Set
  • Wide Supply and Common-Mode Range

Part Specifications

No. of Amplifiers 1 Amplifier, 1Amplifiers
Input Bias Current 10µA
Amplifier Case Style SOT-23
No. of Pins 5Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Bandwidth 440kHz
Supply Voltage Min 2.7V
Supply Voltage Max 40V
Input Offset Voltage 1mV
CMRR 115dB
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 2 - 1 year
SVHC No SVHC (27-Jun-2018)
Accuracy 0.5%
Base Number 139
Gain dB Max 100dB
IC Generic Number 139
Operating Temperature Range -40°C to +85°C
Sensor / Transducer Type Current
Sensor Case Style SOT-23
Supply Current 60µA
Supply Voltage Range 2.7V to 40V
Termination Type Surface Mount Device
RoHS Compliant

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