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INA199-Q1
  • INA199-Q1
  • INA199-Q1
  • INA199-Q1

INA199-Q1

ACTIVE

AEC-Q100, 26V, bi-directional current sense amplifier

Texas Instruments INA199-Q1 Product Info

1 April 2026 0

Parameters

Product type

Analog output

Common-mode voltage (max) (V)

26

Common-mode voltage (min) (V)

-0.3

Input offset (±) (max) (µV)

150

Input offset drift (±) (typ) (µV/°C)

0.1

Features

Bidirectional, Low-side Capable

Rating

Automotive

Voltage gain (V/V)

50, 100, 200

CMRR (min) (dB)

100

Bandwidth (kHz)

14, 30, 80

Supply voltage (max) (V)

26

Supply voltage (min) (V)

2.7

Iq (max) (mA)

0.115

Number of channels

1

Comparators (#)

0

Gain error (%)

0.9, 1.4

Gain error drift (±) (max) (ppm/°C)

10

Slew rate (V/µs)

0.4

TI functional safety category

Functional Safety-Capable

Operating temperature range (°C)

-40 to 125

Package

SOT-SC70 (DCK)-6-4.2 mm² 2 x 2.1

Features

  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to 125°C, TA
  • Functional Safety-Capable
  • Wide common-mode range: –0.1 V to 26 V
  • Offset voltage: ±150 µV (maximum) (enables shunt drops of 10-mV full-scale)
  • Accuracy:
    • Gain error (maximum over temperature):
      • ±1% (C version)
      • ±1.5% (B version)
    • Offset drift: 0.5-µV/°C (maximum)
    • Gain drift: 10-ppm/°C (maximum)
  • Choice of gains:
    • INA199x1-Q1: 50 V/V
    • INA199x2-Q1: 100 V/V
    • INA199x3-Q1: 200 V/V
  • Quiescent current: 100 µA (maximum)
  • Package: 6-pin SC70
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to 125°C, TA
  • Functional Safety-Capable
  • Wide common-mode range: –0.1 V to 26 V
  • Offset voltage: ±150 µV (maximum) (enables shunt drops of 10-mV full-scale)
  • Accuracy:
    • Gain error (maximum over temperature):
      • ±1% (C version)
      • ±1.5% (B version)
    • Offset drift: 0.5-µV/°C (maximum)
    • Gain drift: 10-ppm/°C (maximum)
  • Choice of gains:
    • INA199x1-Q1: 50 V/V
    • INA199x2-Q1: 100 V/V
    • INA199x3-Q1: 200 V/V
  • Quiescent current: 100 µA (maximum)
  • Package: 6-pin SC70

Description

The INA199-Q1 is a voltage-output, current-sense amplifier that can sense drops across shunts at common-mode voltages from –0.1 V to 26V, 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 10-mV full-scale.

This device operates from a single 2.7-V to 26-V power supply, drawing a maximum of 100 µA of supply current. All gain options are specified from –40°C to +125°C, and are offered in a 6-pin SC70 package.

The INA199-Q1 is a voltage-output, current-sense amplifier that can sense drops across shunts at common-mode voltages from –0.1 V to 26V, 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 10-mV full-scale.

This device operates from a single 2.7-V to 26-V power supply, drawing a maximum of 100 µA of supply current. All gain options are specified from –40°C to +125°C, and are offered in a 6-pin SC70 package.

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