Texas Instruments INA180A1IDBVT

Overview

INA180A1IDBVT from Texas Instruments is a single-channel, high-precision current-sense amplifier designed for low- and high-side sensing in power-constrained systems. It features 20 V/V fixed gain, ±150 µV max offset at 0 V common-mode, 350 kHz bandwidth, and operates from 2.7 V to 5.5 V supply across –40°C to +125°C - enabling accurate real-time current monitoring in motor control and battery management circuits.

For engineers reviewing the INA180A1IDBVT datasheet, INA180A1IDBVT pinout, INA180A1IDBVT application, or INA180A1IDBVT equivalent, key selection criteria include its 20 V/V gain accuracy (±1% max), –0.2 V to +26 V input common-mode range independent of supply, 2 V/µs slew rate, and SOT-23 (DBV) package compatibility with space-constrained PCB layouts.

Technical Context

The INA180A1IDBVT implements a precision current-shunt monitor architecture with an integrated matched resistor gain network, eliminating external gain-setting components and minimizing temperature-induced gain drift (1.5 ppm/°C). Its input stage supports true rail-to-rail common-mode operation down to –0.2 V, enabling bidirectional current sensing in low-side configurations with ground-referenced shunts.

It delivers output swing within 30 mV of VS and 500 µV of GND under 10 kΩ load, while maintaining 84 dB minimum CMRR over –40°C to +125°C. The device draws only 260 µA quiescent current, making it suitable for always-on monitoring in energy-sensitive applications.

Key Specifications

Pinout & Package

The INA180A1IDBVT is housed in a 5-pin SOT-23 (DBV) package measuring 2.90 mm × 1.60 mm, optimized for high-density PCB layouts and reflow-compatible assembly.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar current-sense amplifier applications.

Compared with INA180A2IDBVT and INA240A1IDR, the INA180A1IDBVT offers optimal cost-performance balance for 24-V embedded systems needing 20× gain, minimal board area, and guaranteed 350 kHz response - without over-specifying voltage range or offset performance.

Availability

INA180A1IDBVT is available at Aetrix Electronics and suitable for motor control, battery monitoring, and power management applications requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial OEMs.

Supply support for INA180A1IDBVT 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 leader specializing in analog and embedded processing technologies, with decades of expertise in precision signal conditioning and power management ICs.

The INA180 family was engineered for cost-optimized, high-reliability current sensing in space-constrained industrial and automotive subsystems - delivering factory-trimmed gain and offset in compact SOT-23 packages without sacrificing bandwidth or common-mode capability.

FAQ

What is the maximum common-mode voltage the INA180A1IDBVT can handle?

The INA180A1IDBVT supports a common-mode input voltage range of –0.2 V to +26 V, independent of its 2.7–5.5 V supply voltage. This allows direct high-side sensing on 24-V industrial buses and low-side sensing with negative transient tolerance. Absolute maximum ratings limit IN+ and IN− pins to ±26 V differential and GND – 0.3 V to +26 V common-mode.

Does the INA180A1IDBVT require external gain-setting resistors?

No, the INA180A1IDBVT integrates a precision-matched internal resistor network configured for 20 V/V fixed gain. This eliminates external components, reduces PCB area, and ensures ±1% maximum gain error across temperature - unlike discrete op-amp-based solutions that require careful resistor matching and layout.

What is the typical quiescent current consumption of the INA180A1IDBVT?

The INA180A1IDBVT draws a maximum of 260 µA quiescent current at 25°C and 5 V supply, with 300 µA specified over the full –40°C to +125°C operating range. This ultra-low IQ enables continuous current monitoring in battery-backed systems without significant runtime impact.

Can the INA180A1IDBVT be used in both high-side and low-side current sensing configurations?

Yes, the INA180A1IDBVT supports both configurations. For high-side sensing, connect IN+ to the bus side and IN− to the load side of the shunt; for low-side, connect IN+ to the load side and IN− to ground. Its –0.2 V to +26 V common-mode range ensures accuracy in either topology without external level-shifting circuitry.

What package type and pinout does the INA180A1IDBVT use?

The INA180A1IDBVT uses the 5-pin SOT-23 (DBV) package with Pinout A: Pin 1 = OUT, Pin 2 = GND, Pin 3 = IN+, Pin 4 = IN−, Pin 5 = VS. This layout matches TI's standard DBV footprint and is compatible with automated pick-and-place and reflow processes.