Texas Instruments INA180A3IDBVT

Overview

INA180A3IDBVT from Texas Instruments is a single-channel, high-side/low-side current-sense amplifier with 100 V/V fixed gain, –0.2 V to +26 V common-mode input range, ±500 µV max offset at 12 V VCM, 150 kHz bandwidth, and 2 V/µs slew rate-used for precision motor phase current monitoring in industrial inverters.

For engineers reviewing the INA180A3IDBVT datasheet, INA180A3IDBVT pinout, INA180A3IDBVT application, or INA180A3IDBVT equivalent, this page delivers verified specifications, SOT-23 pin mapping, real-world use cases in battery management and solar inverters, and two validated alternative parts with documented functional differences.

Technical Context

The INA180A3IDBVT employs a precision matched-resistor gain network (100 V/V) to minimize gain error (±1% max) and temperature drift (1 µV/°C max), enabling accurate RTI current measurement across –40°C to +125°C. Its rail-to-rail output stage delivers 2 V/µs slew rate and supports load currents up to 8 mA.

It operates from a single 2.7 V to 5.5 V supply while rejecting common-mode transients up to 26 V-enabling direct sensing on high-voltage bus rails without level-shifting circuitry. CMRR exceeds 84 dB over full temperature range.

Key Specifications

Pinout & Package

The INA180A3IDBVT is housed in a 5-pin SOT-23 (DBV) package measuring 2.90 mm × 1.60 mm, optimized for space-constrained PCB layouts in motor drives and power modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with INA240A3IDR and MAX4080TASA+, the INA180A3IDBVT offers optimal balance of 150 kHz bandwidth, 260 µA quiescent current, and SOT-23 footprint for cost-sensitive industrial motor and solar applications-without requiring supply or layout changes.

Availability

INA180A3IDBVT is available at Aetrix Electronics and suitable for motor control, battery monitoring, and solar inverter designs requiring stable component supply, long-term production continuity, and traceable sourcing.

Supply support for INA180A3IDBVT 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 amplifiers and power management ICs.

The INA180 family was designed for cost-optimized, high-accuracy current sensing in industrial and renewable energy systems-delivering fixed-gain, low-drift performance in compact SOT-23 packaging.

FAQ

What is the maximum common-mode voltage supported by the INA180A3IDBVT?

The INA180A3IDBVT supports a common-mode input voltage range of –0.2 V to +26 V. This allows direct sensing on 24-V industrial buses or 26-V battery strings without external level-shifting components. The specification is guaranteed over the full –40°C to +125°C operating temperature range and applies to both IN+ and IN– pins simultaneously.

Does the INA180A3IDBVT require external gain-setting resistors?

No, the INA180A3IDBVT does not require external gain-setting resistors. It integrates a precision matched-resistor network configured for 100 V/V fixed gain. This eliminates resistor matching errors, reduces PCB area, and improves temperature stability-resulting in ±1% maximum gain error across –40°C to +125°C without any external components.

What is the bandwidth and slew rate of the INA180A3IDBVT?

The INA180A3IDBVT has a small-signal bandwidth of 150 kHz and a large-signal slew rate of 2 V/µs. These values are specific to the A3 variant (100 V/V gain) and were measured with C_LOAD = 10 pF. The 150 kHz bandwidth enables accurate capture of motor phase current harmonics up to the 5th order, while the 2 V/µs slew rate supports fast overcurrent response in fault conditions.

Can the INA180A3IDBVT be used in high-side and low-side configurations?

Yes, the INA180A3IDBVT supports both high-side and low-side current sensing. For high-side use, connect IN+ to the bus-voltage side and IN– to the load side of the sense resistor. For low-side use, connect IN+ to the load side and IN– to ground. Its –0.2 V to +26 V common-mode range and rail-to-rail output ensure accuracy in either configuration without external circuitry.

What package type and pinout does the INA180A3IDBVT use?

The INA180A3IDBVT uses a 5-pin SOT-23 (DBV) package with Pinout A configuration: 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 assembly. Thermal performance is characterized with R_θJA = 197.1°C/W under JEDEC JESD51-7 conditions.