Texas Instruments INA196AIDBVRG4

Overview

INA196AIDBVRG4 from Texas Instruments is a high-voltage current shunt monitor IC designed for bidirectional sensing across precision shunt resistors in power rails with common-mode voltages from −16 V to +80 V. It delivers 20 V/V fixed gain, 500 kHz bandwidth, ±2.2% total output error over temperature, and operates from a single 2.7 V to 18 V supply drawing ≤900 μA - enabling accurate real-time current monitoring in automotive battery management and telecom power supplies.

For engineers reviewing the INA196AIDBVRG4 datasheet, INA196AIDBVRG4 pinout, INA196AIDBVRG4 application, or INA196AIDBVRG4 equivalent, key selection criteria include its −16 V to +80 V common-mode range, SOT-23-5 package compatibility, 20 V/V transfer function, and operation at extended temperature (−40°C to +125°C) without external level-shifting circuitry.

Technical Context

The INA196AIDBVRG4 implements a patented dual-amplifier front-end architecture that enables wide common-mode operation: amplifier A1 activates for negative common-mode voltages (−16 V to 0 V), while A2 handles positive ranges (0 V to +80 V), with seamless transition between modes. This eliminates reliance on precision resistor matching for CMR.

Its internal current-to-voltage conversion stage feeds a buffered output stage capable of sourcing up to 10 mA, with rail-to-rail swing capability (within 100 mV of V+ and 50 mV of GND). The device maintains 80 dB minimum CMR across its full −16 V to +80 V input range and supports stable operation with capacitive loads up to 10 nF.

Key Specifications

Pinout & Package

SOT-23-5 (DBV) package: 2.90 mm × 1.60 mm body, 0.95 mm height, gull-wing leads, RoHS-compliant, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar current shunt monitor applications.

Compared with INA196AIDBVT, the INA196AIDBVRG4 provides identical performance in a cut-tape format ideal for engineering validation, while the MAX4080TASA+ trades bandwidth and size for higher gain - making INA196AIDBVRG4 the preferred choice for space-constrained, high-speed current sensing at 20 V/V.

Availability

INA196AIDBVRG4 is available at Aetrix Electronics and suitable for automotive battery monitoring, telecom 48 V power distribution, and industrial motor drive applications requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for INA196AIDBVRG4 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company specializing in analog and embedded processing technologies, with leadership in precision analog signal chain solutions.

The INA19x family was engineered specifically for high-accuracy, high-common-mode current sensing in power-constrained and thermally demanding environments - targeting automotive, industrial, and communications infrastructure markets.

FAQ

What is the maximum common-mode voltage the INA196AIDBVRG4 can handle?

The INA196AIDBVRG4 supports a common-mode input voltage range of −16 V to +80 V, meaning it can accurately measure shunt voltage drops on power rails operating as low as −16 V (e.g., negative supply buses) or as high as +80 V (e.g., 48 V telecom systems with transients). This rating is independent of the V+ supply voltage, which may be as low as 2.7 V - a key advantage over conventional op-amp-based current sense circuits.

Does the INA196AIDBVRG4 require external gain-setting resistors?

No, the INA196AIDBVRG4 integrates a fixed 20 V/V gain stage and requires no external resistors to set gain. Its internal laser-trimmed resistor network ensures stable, repeatable scaling from shunt voltage (VSENSE) to output voltage (VOUT = 20 × VSENSE), eliminating gain drift sources and reducing PCB area versus discrete amplifier solutions. This fixed-gain architecture is confirmed in the device comparison table and electrical characteristics section of the SBOS307G datasheet.

What is the operating temperature range for the INA196AIDBVRG4?

The INA196AIDBVRG4 is specified for operation from −40°C to +125°C ambient temperature, with full electrical performance guaranteed across this extended industrial and automotive range. Its thermal resistance (RθJA = 221.7°C/W in SOT-23-5) and quiescent current stability (≤950 μA max over temperature) ensure reliable function in under-hood automotive ECUs and sealed industrial enclosures without forced cooling.

Can the INA196AIDBVRG4 be used for bidirectional current sensing?

Yes, the INA196AIDBVRG4 supports bidirectional current sensing by interpreting polarity of the differential input voltage (VIN+ − VIN−). When current flows from VIN+ to VIN−, VOUT rises above mid-supply; when reversed, VOUT falls - provided the output stage remains within its swing limits (≥50 mV above GND and ≤100 mV below V+). Its symmetric common-mode range (−16 V to +80 V) and rail-to-rail output enable unambiguous direction detection in battery charge/discharge monitoring.

What package type does the INA196AIDBVRG4 use, and is it RoHS-compliant?

The INA196AIDBVRG4 uses the SOT-23-5 (DBV) package: 2.90 mm × 1.60 mm body size, 0.95 mm height, gull-wing leads, and RoHS-compliant lead finish. This package is documented in the "Device Information" table and "Mechanical, Packaging, and Orderable Information" section of the SBOS307G datasheet, and is compatible with standard reflow soldering profiles per JEDEC J-STD-020.