INA138-Q1 Series

AEC-Q100, 2.7 to 36V, 800kHz Variable gain current sense amplifier

Catalog

AEC-Q100, 2.7 to 36V, 800kHz Variable gain current sense amplifier

Part	Package / Case	Package / Case [custom]	Package / Case [custom]	Grade	Mounting Type	Supplier Device Package	Voltage - Input [Max]	Voltage - Input [Min]	Accuracy	Operating Temperature [Max]	Operating Temperature [Min]	Qualification	Function	Sensing Method
Texas Instruments INA138QPWRQ1	8-TSSOP	0.173 "	4.4 mm	Automotive	Surface Mount	8-TSSOP	36 V	2.7 V	0.5 %	125 °C	-40 °C	AEC-Q100	Current Monitor	High-Side
Texas Instruments INA138NA/3K	SC-74A SOT-753				Surface Mount	SOT-23-5	36 V	2.7 V	0.5 %	125 °C	-40 °C		Current Monitor	High-Side
Texas Instruments INA138NA/250	SC-74A SOT-753				Surface Mount	SOT-23-5	36 V	2.7 V	0.5 %	125 °C	-40 °C		Current Monitor	High-Side
Texas Instruments INA138NA/250G4	SC-74A SOT-753				Surface Mount	SOT-23-5	36 V	2.7 V	0.5 %	125 °C	-40 °C		Current Monitor	High-Side
Texas Instruments INA138NA/3KG4	SC-74A SOT-753				Surface Mount	SOT-23-5	36 V	2.7 V	0.5 %	125 °C	-40 °C		Current Monitor	High-Side

Catalog

AEC-Q100, 2.7 to 36V, 800kHz Variable gain current sense amplifier

Key Features

• Qualified for Automotive ApplicationsAEC-Q100 Qualified With the Following Results:Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature RangeDevice HBM ESD Classification Level 2Device CDM ESD Classification Level C6Complete Unipolar High-Side Current-Measurement CircuitWide Supply and Common-Mode Ranges:INA138-Q1: 2.7 V to 36 VINA168-Q1: 2.7 V to 60 VIndependent Supply and Input Common-Mode VoltagesSingle Resistor Gain SetLow Quiescent Current (25 µA Typical)Wide Temperature Range: –40°C to +125°CPackages: TSSOP-8, SOT-23-5 (INA168-Q1)Qualified for Automotive ApplicationsAEC-Q100 Qualified With the Following Results:Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature RangeDevice HBM ESD Classification Level 2Device CDM ESD Classification Level C6Complete Unipolar High-Side Current-Measurement CircuitWide Supply and Common-Mode Ranges:INA138-Q1: 2.7 V to 36 VINA168-Q1: 2.7 V to 60 VIndependent Supply and Input Common-Mode VoltagesSingle Resistor Gain SetLow Quiescent Current (25 µA Typical)Wide Temperature Range: –40°C to +125°CPackages: TSSOP-8, SOT-23-5 (INA168-Q1)

Description

The INA138-Q1 and INA168-Q1 (INA1x8-Q1) devices are high-side, unidirectional, current sense amplifiers. Wide input common-mode voltage range, low quiescent current, and TSSOP and SOT-23 packaging enable use in a variety of applications. Input common-mode and power-supply voltages are independent, and range from 2.7 V to 36 V for the INA138-Q1, and 2.7 V to 60 V for the INA168-Q1. Quiescent current is only 25 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 devices are available in a TSSOP-8 package. The INA168-Q1 is also available in a SOT-23-5 package. Both devices are specified for the –40°C to +125°C temperature range. The INA138-Q1 and INA168-Q1 (INA1x8-Q1) devices are high-side, unidirectional, current sense amplifiers. Wide input common-mode voltage range, low quiescent current, and TSSOP and SOT-23 packaging enable use in a variety of applications. Input common-mode and power-supply voltages are independent, and range from 2.7 V to 36 V for the INA138-Q1, and 2.7 V to 60 V for the INA168-Q1. Quiescent current is only 25 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 devices are available in a TSSOP-8 package. The INA168-Q1 is also available in a SOT-23-5 package. Both devices are specified for the –40°C to +125°C temperature range.