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Current sense amplifiers analog output

INA202-Q1

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AEC-Q100, -16 to 80V, 500kHz current sense amplifier w/ comparator

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Data sheet

INA202-Q1

ACTIVE
Data sheet Order now

Product details

Common mode voltage (Max) (V) 80 Common mode voltage (Min) (V) -16 Input offset (+/-) (Max) (uV) 2500 Input offset drift (+/-) (Typ) (uV/C) 5 Gain (V/V) 100 Gain error (%) 1 Gain error drift (+/-) (Max) (ppm/°C) 100 CMRR (Min) (dB) 100 Bandwidth (kHz) 200 Supply voltage (Max) (V) 18 Supply voltage (Min) (V) 2.7 Iq (Max) (mA) 1.85 Number of channels (#) 1 Comparators (#) 0 Features Alert Function, Low-side Capable Rating Automotive Operating temperature range (C) -40 to 125
Common mode voltage (Max) (V) 80 Common mode voltage (Min) (V) -16 Input offset (+/-) (Max) (uV) 2500 Input offset drift (+/-) (Typ) (uV/C) 5 Gain (V/V) 100 Gain error (%) 1 Gain error drift (+/-) (Max) (ppm/°C) 100 CMRR (Min) (dB) 100 Bandwidth (kHz) 200 Supply voltage (Max) (V) 18 Supply voltage (Min) (V) 2.7 Iq (Max) (mA) 1.85 Number of channels (#) 1 Comparators (#) 0 Features Alert Function, Low-side Capable Rating Automotive Operating temperature range (C) -40 to 125
VSSOP (DGK) 8 15 mm² 3 x 4.9
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C3B
  • Current-Sense Amplifier:
    • Common-Mode Range: –16 V to +80 V
    • 3.5% Max Error Over Temperature
    • Bandwidth: 500 kHz (INA200-Q1)
    • Three Gain Options:
      • 20 V/V (INA200-Q1)
      • 50 V/V (INA201-Q1)
      • 100 V//V (INA202-Q1)
  • Integrated Open-Drain Comparator
    • Latching Capability
    • 0.6-V Internal Voltage Reference
  • Quiescent Current: 1800 µA (Max)
  • Latch-Up Exceeds 100 mA per JESD78
  • Package: VSSOP-8
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C3B
  • Current-Sense Amplifier:
    • Common-Mode Range: –16 V to +80 V
    • 3.5% Max Error Over Temperature
    • Bandwidth: 500 kHz (INA200-Q1)
    • Three Gain Options:
      • 20 V/V (INA200-Q1)
      • 50 V/V (INA201-Q1)
      • 100 V//V (INA202-Q1)
  • Integrated Open-Drain Comparator
    • Latching Capability
    • 0.6-V Internal Voltage Reference
  • Quiescent Current: 1800 µA (Max)
  • Latch-Up Exceeds 100 mA per JESD78
  • Package: VSSOP-8

The INA200-Q1, INA201-Q1, and INA202-Q1 (INA20x-Q1) are low- or high-side current-shunt monitors with voltage output. The INA20x-Q1 devices can sense drops across shunts at common-mode voltages from –16 V to +80 V. The INA20x-Q1 are available with three output voltage scales: 20 V/V, 50 V/V, and 100 V/V, with up to a 500-kHz bandwidth.

The INA20x-Q1 also incorporate an open-drain comparator and internal reference that provides a 0.6-V threshold. External dividers set the current trip point. The comparator includes a latching capability, and can be made transparent by grounding (or leaving open) the RESET pin.

The INA20x-Q1 operate from a single 2.7-V to 18-V supply, drawing a maximum of 1800 µA of supply current. These devices are available in the very small VSSOP-8 package. Specifications for all devices extend over the operating temperature range of –40°C to +125°C.

The INA200-Q1, INA201-Q1, and INA202-Q1 (INA20x-Q1) are low- or high-side current-shunt monitors with voltage output. The INA20x-Q1 devices can sense drops across shunts at common-mode voltages from –16 V to +80 V. The INA20x-Q1 are available with three output voltage scales: 20 V/V, 50 V/V, and 100 V/V, with up to a 500-kHz bandwidth.

The INA20x-Q1 also incorporate an open-drain comparator and internal reference that provides a 0.6-V threshold. External dividers set the current trip point. The comparator includes a latching capability, and can be made transparent by grounding (or leaving open) the RESET pin.

The INA20x-Q1 operate from a single 2.7-V to 18-V supply, drawing a maximum of 1800 µA of supply current. These devices are available in the very small VSSOP-8 package. Specifications for all devices extend over the operating temperature range of –40°C to +125°C.
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Technical documentation

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Type Title Date
* Data sheet INA20x-Q1 Automotive Grade, –16-V to +80-V, Low- or High-Side, High-Speed, Voltage-Output, Current-Sense Amplifier With Comparator and Reference datasheet (Rev. C) PDF | HTML 01 Feb 2016
Application note Measuring Current To Detect Out-of-Range Conditions (Rev. D) PDF | HTML 10 Mar 2022
Application note Using a PCB Copper Trace as a Current-Sense Shunt Resistor PDF | HTML 25 Jan 2022
Application note Measuring Current for Handle Multiple Out-of-Range Conditions (Rev. C) PDF | HTML 04 Oct 2021
Technical article Solving the multidecade current-measurement challenge in your 48-V BMS application 14 Jun 2021
Technical article How current-sense amplifiers monitor satellite health 08 Feb 2021
Technical article A key to accurate system thermal management: monitoring both current flow and temperature 04 Oct 2018
Circuit design Overcurrent event detection circuit 31 Jul 2018
Technical article System trade-offs for high- and low-side current measurements 01 Jun 2017

Design & development

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

Simulation model

INA202 TINA-TI Spice Model

SBOM844.ZIP (10 KB) - TINA-TI Spice Model
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Simulation model

INA202 TINA-TI Reference Design

SBOM845.TSC (154 KB) - TINA-TI Reference Design
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Simulation model

INA202 PSpice Model (Rev. A)

SBOM866A.ZIP (22 KB) - PSpice Model
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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Simulation tool

TINA-TI — SPICE-based analog simulation program

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 (...)
User guide: PDF
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Calculation tool

CS-AMPLIFIER-ERROR-TOOL — Current sense amplifier comparison and error tool

This Excel calculator provides a comparison between two and five of our standard current sense amplifiers, delivering a chart containing the basic parameters of each device. This calculator also takes system condition inputs from users such as common-mode voltage, supply voltage, shunt resistor (...)
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Calculation tool

Current Sense Amplifier Comparison and Error Tool (Rev. E)

SBOR020E.ZIP (592 KB)
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Design tool

CIRCUIT060035 — Bidirectional current sensing with a window comparator circuit

This bidirectional current sensing solution uses a current-sense amplifier and a high-speed dual comparator with a rail-to-rail input common mode range to create over-current (OC) alert signals at the comparator outputs (OUTA and OUTB) if the input current (IG1) rises above 100 A or falls below (...)
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Design tool

CIRCUIT060037 — Precision over-current latch circuit

This high-side, current sensing solution uses a current sense amplifier, a comparator with an integrated reference and a P-channel MOSFET to create an over-current latch circuit. When a load current greater than 200 mA is detected, the circuit disconnects the system from its power source. The (...)
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Reference designs

TIDA-00302 — Current Shunt Monitor with Transient Robustness Reference Design

This high-side current shunt monitor is used to measure the voltage developed across a current-sensing resistor when current passes through it.

Additionally, an external protection circuit is implemented to provide surge and fast-transient protection and demonstrate the different immunity levels to (...)

Schematic: PDF
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VSSOP (DGK) 8 View options

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