Texas Instruments INA183A1IDBVR

Overview

INA183A1IDBVR from Texas Instruments is a high-precision, zero-drift current-sense amplifier optimized for unidirectional high-side sensing in 2.7-V to 26-V systems. It delivers 50 V/V fixed gain, ±170 μV max offset voltage, 0.4% max gain error over temperature, 80-kHz bandwidth, and draws only 130 μA quiescent current from the IN+ pin - enabling accurate 10-mV full-scale shunt measurements in server power rails and telecom supplies.

For engineers reviewing the INA183A1IDBVR datasheet, INA183A1IDBVR pinout, INA183A1IDBVR application, or INA183A1IDBVR equivalent, key selection criteria include its single-supply operation from IN+, 2.7–26 V common-mode range, SOT-23 (DBV) 5-pin package, and guaranteed performance across –40 °C to +125 °C without external power rails.

Technical Context

The INA183A1IDBVR implements a zero-drift chopper-stabilized architecture to achieve 0.5 μV/°C max offset drift and 10 ppm/°C max gain drift, ensuring stable current measurement accuracy across industrial temperature ranges. Its input stage operates directly from the IN+ pin, eliminating need for auxiliary supply while maintaining rail-to-rail output swing capability relative to GND and IN+.

This device functions exclusively in high-side, unidirectional mode: IN+ connects to the supply side of the shunt, IN– to the load side, and OUT delivers a voltage proportional to sensed current. It tolerates up to 26 V on IN– even when unpowered, and features 120 dB typical CMRR at DC with 100 dB minimum over full temperature range.

Key Specifications

Pinout & Package

INA183A1IDBVR is housed in a 5-pin SOT-23 (DBV) package measuring 2.90 mm × 1.60 mm, with exposed pad not electrically connected. The package supports standard surface-mount reflow per JEDEC Level-2-260°C-1 year MSL rating.

Key Features

Applications

Equivalent & Alternatives

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

Compared with INA240A1DDBVR and MAX4080TASA+, the INA183A1IDBVR offers optimal trade-off of ultra-low quiescent current (130 μA), compact SOT-23 footprint, and precision performance specifically tuned for 3–24 V server, telecom, and industrial power rails - without over-specifying voltage range or feature set.

Availability

INA183A1IDBVR is available at Aetrix Electronics and suitable for server power monitoring, telecom DC-DC converter supervision, and battery management systems requiring stable component supply, long-lifecycle support, and guaranteed parametric compliance across –40 °C to +125 °C.

Supply support for INA183A1IDBVR 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and communications markets.

The INA183 family was designed specifically for high-precision, high-side current sensing in space- and power-constrained 2.7–26 V systems - prioritizing low offset drift, single-supply simplicity, and robustness in server, telecom, and industrial power supplies.

FAQ

What is the maximum common-mode voltage the INA183A1IDBVR can handle?

The INA183A1IDBVR supports a common-mode input voltage range from 2.7 V to 26 V. This means the voltage at the IN+ pin - which also serves as the power source - can be as high as 26 V while maintaining specified performance. The IN– pin is rated to withstand up to 26 V regardless of whether the device is powered, making it suitable for high-side sensing in 24-V industrial and telecom systems. This rating is validated across the full –40 °C to +125 °C operating temperature range.

Does the INA183A1IDBVR require an external power supply?

No, the INA183A1IDBVR does not require an external power supply. It draws all operating current - up to 130 μA - directly from the IN+ pin, which must be biased between 2.7 V and 26 V. This single-supply architecture eliminates the need for auxiliary voltage rails, simplifying PCB layout and reducing component count in high-voltage monitoring applications such as server 12-V distribution or telecom 48-V intermediate bus converters.

What is the gain accuracy and temperature stability of the INA183A1IDBVR?

The INA183A1IDBVR has a fixed gain of 50 V/V with a maximum gain error of ±0.4% over the full –40 °C to +125 °C temperature range. Its gain drift is limited to 10 ppm/°C, ensured by tightly matched internal thin-film resistors. This level of stability allows consistent current-to-voltage scaling across thermal cycling in demanding environments like data center power supplies, where calibration drift must remain below 0.5% over lifetime without recalibration.

Can the INA183A1IDBVR be used for bidirectional current sensing?

No, the INA183A1IDBVR is designed exclusively for unidirectional high-side current sensing. Its architecture produces a positive output voltage proportional to current flowing from IN+ to IN– (i.e., from supply to load). It cannot resolve negative differential inputs or reverse current flow. For bidirectional applications, consider alternatives such as the INA240 series, which explicitly supports both directions and includes dedicated reference pins for offset adjustment.

What package type and mounting specifications apply to the INA183A1IDBVR?

The INA183A1IDBVR is supplied in a 5-pin SOT-23 (DBV) package measuring 2.90 mm × 1.60 mm, with no exposed thermal pad connection. It complies with JEDEC moisture sensitivity Level-2 (260 °C peak reflow, 1-year floor life) and is RoHS-compliant with Sn (matte tin) lead finish. Recommended layout uses Kelvin (4-wire) connections to the shunt resistor and a 0.1-μF bypass capacitor placed directly between IN+ and GND pins to ensure stable operation under noisy supply conditions.