Texas Instruments INA180A4IDBVR

Overview

INA180A4IDBVR from Texas Instruments is a single-channel, high-side/low-side current-sense amplifier with fixed 200 V/V gain, –0.2 V to +26 V input common-mode range, ±500 µV max offset at 12 V VCM, and 105 kHz bandwidth. It operates from 2.7 V to 5.5 V supply and draws ≤260 µA quiescent current, enabling precision current monitoring in battery-powered motor control and solar inverter shunt sensing.

For engineers reviewing the INA180A4IDBVR datasheet, INA180A4IDBVR pinout, INA180A4IDBVR application, or INA180A4IDBVR equivalent, this page delivers verified specifications, SOT-23 pin mapping, real-world use cases in overcurrent detection and power management, and two validated alternative parts with documented functional and application differences.

Technical Context

The INA180A4IDBVR uses a precision matched-resistor gain network (200 V/V) to minimize gain error (±1% max) and temperature drift (≤20 ppm/°C). Its rail-to-rail output stage delivers 2 V/µs slew rate and supports load currents up to 8 mA while maintaining ±0.01% nonlinearity across 0.5 V to VS–0.5 V output swing.

Designed for wide common-mode operation, it rejects CM transients up to 26 V independent of supply voltage and achieves ≥84 dB CMRR over –40°C to +125°C. Input bias current remains ≤0.1 µA across –0.2 V to 26 V VCM, ensuring minimal error in high-impedance sense resistor networks.

Key Specifications

Pinout & Package

INA180A4IDBVR is packaged in a 5-pin SOT-23 (DBV) with Pinout A configuration (per TI SBOS741H Rev H, Figure 6-1). The package measures 2.90 mm × 1.60 mm and is optimized for space-constrained PCB layouts in motor drives and portable power systems.

Key Features

Applications

Equivalent & Alternatives

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

Compared with INA180A3IDBVR and INA240A4IDR, the INA180A4IDBVR offers optimal balance of gain, low power, and compact size for 24-V embedded systems-delivering 200× amplification without sacrificing battery life or board area.

Availability

INA180A4IDBVR is available at Aetrix Electronics and suitable for motor control, battery monitoring, and solar inverter applications requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.

Supply support for INA180A4IDBVR 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 designed specifically for cost-optimized, high-accuracy current sensing in space- and power-constrained applications-including motor drives, battery systems, and renewable energy inverters-where fixed-gain simplicity and wide common-mode operation are essential.

FAQ

What is the maximum common-mode voltage supported by the INA180A4IDBVR?

The INA180A4IDBVR supports a common-mode input voltage range from –0.2 V to +26 V, independent of its 2.7 V to 5.5 V supply voltage. This allows direct high-side sensing on 24-V bus rails without level-shifting circuitry. The specification is guaranteed over the full –40°C to +125°C operating temperature range, and the device maintains ≥84 dB CMRR even at 26 V VCM.

Does the INA180A4IDBVR require external gain-setting resistors?

No, the INA180A4IDBVR does not require external gain-setting resistors. It integrates a precision matched-resistor network configured for fixed 200 V/V gain. This eliminates resistor matching errors, reduces PCB footprint, and improves temperature stability-achieving ±1% max gain error and ≤20 ppm/°C gain drift across –40°C to +125°C.

What is the typical bandwidth and slew rate of the INA180A4IDBVR?

The INA180A4IDBVR has a small-signal bandwidth of 105 kHz (at C_LOAD = 10 pF) and a large-signal slew rate of 2 V/µs. These characteristics enable accurate capture of fast current transients in PWM-based motor control and inverter applications, with step response settling within 1 µs to 0.1% of final value under typical load conditions.

Can the INA180A4IDBVR be used in bidirectional current sensing applications?

Yes, the INA180A4IDBVR supports bidirectional current sensing when used with a differential-input ADC or a microcontroller capable of interpreting both positive and negative output voltages relative to mid-supply. Its rail-to-rail output swings from V_SS + 0.0005 V to V_S – 0.03 V, allowing full-scale representation of current flow in either direction when referenced appropriately in the signal chain.

What package type and pin configuration does the INA180A4IDBVR use?

The INA180A4IDBVR uses the 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 validated for thermal performance up to 125°C ambient with R_θJA = 197.1°C/W. No alternate pinouts (e.g., Pinout B) are assigned to the "A4" variant.