Texas Instruments INA4180A2IPWR

Overview

INA4180A2IPWR from Texas Instruments is a quad-channel, high-precision current-sense amplifier with 50 V/V fixed gain, –0.2 V to +26 V common-mode input range, ±500 µV maximum offset at 12 V VCM, and 210 kHz small-signal bandwidth. It operates from 2.7 V to 5.5 V supply and draws ≤900 µA quiescent current, enabling accurate bidirectional current monitoring in motor control and battery management systems.

For engineers reviewing the INA4180A2IPWR datasheet, INA4180A2IPWR pinout, INA4180A2IPWR application, or INA4180A2IPWR equivalent, this page delivers verified specifications, TSSOP-14 pin mapping, real-world use cases in solar inverters and power supplies, and two validated alternative parts with documented functional and layout implications.

Technical Context

The INA4180A2IPWR integrates four matched-resistor gain networks (50 V/V each) to minimize gain error (±1% max) and temperature drift (≤20 ppm/°C), supporting precise RTI current measurement across wide common-mode voltages. Its rail-to-rail output stage delivers 2 V/µs slew rate and ≥100 dB CMRR at DC, enabling stable operation under fast transients up to 26 V.

Designed for low-side and high-side sensing, it features independent IN+ and IN– inputs per channel, no internal reference, and operates over –40°C to +125°C without external compensation. The device rejects supply ripple via 84 dB PSRR and maintains <±0.01% nonlinearity across its 0.5 V to VS–0.5 V output swing range.

Key Specifications

Pinout & Package

TSSOP-14 package (5.00 mm × 4.40 mm body size), thermally enhanced for continuous 4-channel operation at ambient temperatures up to +125°C.

Key Features

Applications

Equivalent & Alternatives

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

Compared with INA4181A2IPWR and MAX40056ATA+T, the INA4180A2IPWR provides superior common-mode range and lower offset drift, making it the only option that meets both 26-V bus compliance and ±500 µV accuracy requirements without external components or layout changes.

Availability

INA4180A2IPWR 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 guaranteed traceable sourcing.

Supply support for INA4180A2IPWR 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 INA4180 series belongs to TI's current-sense amplifier product line, engineered specifically for cost-optimized, high-accuracy bidirectional current measurement in industrial, automotive, and renewable energy systems.

FAQ

What is the maximum common-mode voltage supported by the INA4180A2IPWR?

The INA4180A2IPWR supports a common-mode input voltage range of –0.2 V to +26 V, enabling direct connection to 24-V bus rails without attenuation or level-shifting. This specification is guaranteed across the full –40°C to +125°C operating temperature range and applies independently to each of the four channels in the INA4180A2IPWR device.

Does the INA4180A2IPWR require external gain-setting resistors?

No, the INA4180A2IPWR integrates precision-matched internal resistors to deliver a fixed 50 V/V gain per channel. This eliminates external resistor selection, layout sensitivity, and temperature-induced gain drift - all key contributors to error in discrete gain networks used with the INA4180A2IPWR.

What is the typical quiescent current consumption of the INA4180A2IPWR?

The INA4180A2IPWR draws a maximum of 900 µA quiescent current at TA = –40°C to +125°C and VSENSE = 10 mV. At 25°C and 5-V supply, typical consumption is 690 µA - enabling efficient use in always-on battery-powered monitoring circuits where the INA4180A2IPWR contributes minimal standby load.

Can the INA4180A2IPWR be used for both high-side and low-side current sensing?

Yes, the INA4180A2IPWR supports both configurations: for high-side sensing, connect IN+ to the bus-voltage 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 and rail-to-rail output make the INA4180A2IPWR equally effective in either topology.

What package type is used for the INA4180A2IPWR?

INA4180A2IPWR is supplied in a 14-pin TSSOP package (PW suffix) with 5.00 mm × 4.40 mm body dimensions and standard 0.65-mm lead pitch. This thermally robust package supports four independent current-sense channels while maintaining manufacturability in automated SMT assembly lines using the INA4180A2IPWR.