INA193

SOT-23 (DBV)

5

5 mm² 2.9 x 1.6

Wide Common-Mode Voltage:
–16 V to +80 V
Low Error: 3.0% Over Temp (maximum)
Bandwidth: Up to 500 kHz
Three Transfer Functions Available: 20 V/V,
50 V/V, and 100 V/V
Quiescent Current: 900 µA (maximum)
Complete Current Sense Solution
APPLICATIONS
- Welding Equipment
- Notebook Computers
- Cell Phones
- Telecom Equipment
- Automotive
- Power Management
- Battery Chargers

All other trademarks are the property of their respective owners

Wide Common-Mode Voltage:
–16 V to +80 V
Low Error: 3.0% Over Temp (maximum)
Bandwidth: Up to 500 kHz
Three Transfer Functions Available: 20 V/V,
50 V/V, and 100 V/V
Quiescent Current: 900 µA (maximum)
Complete Current Sense Solution
APPLICATIONS
- Welding Equipment
- Notebook Computers
- Cell Phones
- Telecom Equipment
- Automotive
- Power Management
- Battery Chargers

All other trademarks are the property of their respective owners

The INA193–INA198 family of current shunt monitors with voltage output can sense drops across shunts at common-mode voltages from –16 V to +80 V, independent of the INA19x supply voltage. They are available with three output voltage scales: 20 V/V, 50 V/V, and 100 V/V. The 500 kHz bandwidth simplifies use in current control loops. The INA193–INA195 devices provide identical functions but alternative pin configurations to the INA196–INA198 devices, respectively.

The INA193–INA198 devices operate from a single 2.7-V to 18-V supply, drawing a maximum of 900 µA of supply current. They are specified over the extended operating temperature range (–40°C to +125°C), and are offered in a space-saving SOT-23 package.

The INA193–INA198 family of current shunt monitors with voltage output can sense drops across shunts at common-mode voltages from –16 V to +80 V, independent of the INA19x supply voltage. They are available with three output voltage scales: 20 V/V, 50 V/V, and 100 V/V. The 500 kHz bandwidth simplifies use in current control loops. The INA193–INA195 devices provide identical functions but alternative pin configurations to the INA196–INA198 devices, respectively.

The INA193–INA198 devices operate from a single 2.7-V to 18-V supply, drawing a maximum of 900 µA of supply current. They are specified over the extended operating temperature range (–40°C to +125°C), and are offered in a space-saving SOT-23 package.

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-4-V to 110-V, 1.3-MHz, high-precision current sense amplifier This product offers better VOS, Gain Error, higher bandwidth, and an extended common mode voltage range

Technical documentation

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	Type	Title	Date
*	Data sheet	INA19x Current Shunt Monitor −16 V to +80 V Common-Mode Range datasheet (Rev. G)	03 Jan 2015
	Selection guide	Current Sense Amplifiers (Rev. E)	20 Sep 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
	E-book	Simplifying Current Sensing (Rev. A)	09 Jan 2020
	Technical article	A key to accurate system thermal management: monitoring both current flow and temperature	04 Oct 2018
	Technical article	System trade-offs for high- and low-side current measurements	01 Jun 2017
	Analog design journal	A dual-polarity, bidirectional current-shunt monitor	22 Oct 2008
	Analog design journal	Q4 2008 Issue Analog Applications Journal	22 Oct 2008
	Analog design journal	Low-cost current-shunt monitor IC revives moving-coil meter design	18 Apr 2006

Design & development

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

Simulation model

INA193 PSpice Model (Rev. C)

SBOC054C.ZIP (58 KB) - PSpice Model

Simulation model

INA193 TINA-TI Reference Design (Rev. C)

SBOC164C.TSC (101 KB) - TINA-TI Reference Design

Simulation model

INA193 TINA-TI Spice Model (Rev. B)

SBOM225B.ZIP (5 KB) - TINA-TI Spice Model

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 (...)

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User guide

Calculation tool

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

SBOR020D.ZIP (582 KB)

Design tool

CIRCUIT060030 — High-side, bidirectional current-sensing circuit with transient protection

This high-side, bidirectional current sensing solution can accurately measure current in the range of –40 A to 40 A for a 36-V voltage bus. The linear voltage output is 100 mV to 4.90 V. This solution is also designed to survive IEC61000-4-4 level 4 EFT stress (Voc = 2 kV; Isc = 40 A; 8/20 (...)

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 (...)

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 (...)