Texas Instruments INA210CIDCKT

Overview

INA210CIDCKT from Texas Instruments is a zero-drift, voltage-output current-shunt monitor optimized for bidirectional high- or low-side sensing in power management systems. It features 200 V/V fixed gain, ±35 µV max offset voltage, 0.5 µV/°C max offset drift, and operates from 2.7 V to 26 V supply across –40°C to +125°C - enabling precise 10-mV full-scale shunt measurements in battery chargers and telecom power rails.

For engineers reviewing the INA210CIDCKT datasheet, INA210CIDCKT pinout, INA210CIDCKT application, or INA210CIDCKT equivalent, this page delivers verified specifications, SC70-6 package layout, real-world use cases in notebook power monitoring and cell phone battery protection, and validated alternative parts with documented functional trade-offs.

Technical Context

The INA210CIDCKT implements a precision zero-drift chopper-stabilized amplifier architecture with matched input resistors (5 kΩ) and internal feedback network, supporting accurate differential sensing at common-mode voltages up to 26 V - independent of its 2.7–26 V supply rail. Its REF pin allows programmable output offset, enabling single-supply operation with ground-referenced ADCs.

It delivers 14 kHz bandwidth and 0.4 V/µs slew rate while maintaining 105 dB min CMRR over temperature, and draws only 100 µA max quiescent current - making it suitable for always-on current monitoring in space-constrained portable electronics.

Key Specifications

Pinout & Package

The INA210CIDCKT is packaged in a 6-pin SC70 (DCK) package measuring 2.00 mm × 1.25 mm, optimized for high-density PCB layouts in portable electronics. Pin functions are electrically validated per TI SBOS437K Rev K.

Key Features

Applications

Equivalent & Alternatives

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

Compared with INA210CIDCKT, INA213AIDCKT trades gain and offset for extended bandwidth and dynamic range, while MAX4005EUT+T offers speed at the cost of common-mode flexibility and supply voltage headroom - making INA210CIDCKT optimal for universal 2.7–26 V, high-accuracy, low-power sensing.

Availability

INA210CIDCKT is available at Aetrix Electronics and suitable for battery charger monitoring, notebook power rail sensing, cell phone battery protection, and telecom DC-DC module monitoring requiring stable component supply across industrial and consumer production cycles.

Supply support for INA210CIDCKT 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 INA21x series was designed specifically for high-accuracy, low-power current sensing in space-constrained, wide-input-voltage applications - targeting battery-powered devices, telecom infrastructure, and industrial power supplies.

FAQ

What is the maximum common-mode voltage supported by the INA210CIDCKT?

The INA210CIDCKT supports a common-mode input voltage range of –0.1 V to 26 V across its full operating temperature range (–40°C to +125°C). This allows reliable high-side sensing on 24-V industrial buses and low-side sensing with negative-going transients, all while powered from as low as 2.7 V - a key advantage over conventional current-sense amplifiers limited to supply-rail-referenced inputs. The INA210CIDCKT maintains specified accuracy throughout this range.

Does the INA210CIDCKT require external calibration for 10-mV shunt measurements?

No, the INA210CIDCKT does not require external calibration for 10-mV full-scale shunt measurements due to its ±35 µV maximum offset voltage and 0.5 µV/°C max offset drift. These zero-drift specifications ensure that input-referred error remains below 0.35% of 10 mV across –40°C to +125°C - well within typical system accuracy requirements. The INA210CIDCKT achieves this without trimming or user intervention.

Can the INA210CIDCKT operate with a 3.3-V supply while measuring a 24-V common-mode signal?

Yes, the INA210CIDCKT can operate with a 3.3-V supply while accurately measuring differential voltage across a shunt placed in a 24-V rail. Its architecture decouples common-mode input range (–0.1 V to 26 V) from supply voltage (2.7 V to 26 V), enabling true high-side sensing without level shifters or isolated supplies. The INA210CIDCKT's output remains valid and rail-to-rail capable under these conditions.

What is the purpose of the REF pin on the INA210CIDCKT, and how should it be used?

The REF pin on the INA210CIDCKT sets the output voltage common-mode level - for example, tying REF to 1.65 V produces an output centered at 1.65 V, enabling bipolar-swing operation with single-supply ADCs. It must be driven by a low-impedance source (e.g., op-amp buffer) to preserve CMRR; resistive dividers directly connected to REF degrade rejection. The INA210CIDCKT's REF input impedance is high, but external impedance unbalances the input stage.

Is the INA210CIDCKT pin-compatible with other members of the INA21x family?

No, the INA210CIDCKT is not pin-compatible with other INA21x variants (e.g., INA211, INA213) despite sharing the same SC70-6 package - because gain-setting internal resistors differ per variant, and pin functions are identical but electrical behavior (gain, bandwidth, offset) is fixed per part number. Substituting another INA21x part requires verifying gain, bandwidth, and error budget compatibility; the INA210CIDCKT's 200 V/V gain and 14 kHz bandwidth are unique to its variant.