Product details


Common mode voltage (Max) (V) 40 Common mode voltage (Min) (V) -0.2 Input offset (+/-) (Max) (uV) 50 Input offset drift (+/-) (Typ) (uV/C) 0.05 Gain (V/V) 100, 200, 25, 50, 500 Gain error (%) 0.9 Gain error drift (+/-) (Max) (ppm/°C) 10 CMRR (Min) (dB) 120 Bandwidth (kHz) 45, 37, 35, 32, 27 Supply voltage (Max) (V) 5.5 Supply voltage (Min) (V) 1.7 Iq (Max) (mA) 0.09 Number of channels (#) 1 Comparators (#) 0 Features Bi-directional, Low-side Capable Rating Catalog Operating temperature range (C) -40 to 125 open-in-new Find other Current sense amplifiers analog output

Package | Pins | Size

SOT-23-THN (DDF) 8 8 mm² 2.9 x 2.8 SOT-SC70 (DCK) 6 4 mm² 2 x 2.1 open-in-new Find other Current sense amplifiers analog output


  • Wide common-mode voltage range, VCM:
    –0.2 V to +40 V
  • Low input bias currents, IIB: 500 pA (typ)
    (enables microamp current measurement)
  • Low power:
    • Low supply voltage, VS: 1.7 V to 5.5 V
    • Low shutdown current: 100 nA (max, DDF package)
    • Low quiescent current, IQ: 48 µA (typ)
  • Accuracy:
    • Common-mode rejection ratio: 120 dB (min)
    • Gain error, EG: ±1% (max)
    • Gain drift: 10 ppm/°C (max)
    • Offset voltage, VOS: ±50 µV (max)
    • Offset drift: 0.5 µV/°C (max)
  • Bidirectional current sensing capability
  • Gain options:
    • INA186A1: 25 V/V
    • INA186A2: 50 V/V
    • INA186A3: 100 V/V
    • INA186A4: 200 V/V
    • INA186A5: 500 V/V

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The INA186 is a low-power, voltage-output, current-sense amplifier (also called a current-shunt monitor). This device is commonly used for overcurrent protection, precision current measurement for system optimization, or in closed-loop feedback circuits. The INA186 can sense drops across shunts at common-mode voltages from –0.2 V to +40 V, independent of the supply voltage.

The low input bias current of the INA186 permits the use of larger current-sense resistors, thus providing accurate current measurements in the microamp range. The low offset voltage of the zero-drift architecture extends the dynamic range of the current measurement. This feature allows for smaller sense resistors with lower power loss, while still providing accurate current measurements.

The INA186 operates from a single 1.7-V to 5.5-V power supply, and draws a maximum of 90 µA of supply current. Five fixed gain options are available: 25 V/V, 50 V/V, 100 V/V, 200 V/V, or 500 V/V. The device is specified over the operating temperature range of –40°C to +125°C, and offered in SC70 and SOT-23-THIN packages.

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Technical documentation

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

document-generic User guide
This is a small module with 5 completely independent boards that can be broken off by the user. Five identical boards (15A rating) can be used for the five device gain variants. Each board provides test points for VS, GND, OUT, and REF. Additionally, boards are compatible with 1206 to 0603 shunt (...)
  • Easy to test INA186 with differential voltage or shunt resistor.
  • Pads and sockets allow quick and easy implementation of SMD or TH filtering and input protection.
  • Breakable panels allow experimenting and testing with all gain variants.

Design tools & simulation

SBOMAX9A.TSC (192 KB) - TINA-TI Reference Design
SBOMAY0A.ZIP (58 KB) - TINA-TI Spice Model
SBOMBA6.ZIP (30 KB) - PSpice Model
SBOMBA7.ZIP (30 KB) - PSpice Model
SBOMBA9.ZIP (30 KB) - PSpice Model
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide

CAD/CAE symbols

Package Pins Download
SC70 (DCK) 6 View options
SOT-23-THIN (DDF) 8 View options

Ordering & quality

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