Texas Instruments INA210AIDCKTG4

Overview

INA210AIDCKTG4 from Texas Instruments is a zero-drift, voltage-output current-shunt monitor optimized for bidirectional low- or high-side sensing in power management systems. It features 200 V/V fixed gain, ±35 µV max offset voltage, –0.3 V to 26 V common-mode input range, and operates from 2.7 V to 26 V supply with ≤100 µA quiescent current. It enables precision 10-mV full-scale shunt measurements in battery chargers and telecom power rails.

For engineers reviewing the INA210AIDCKTG4 datasheet, INA210AIDCKTG4 pinout, INA210AIDCKTG4 application, or INA210AIDCKTG4 equivalent, this page delivers verified specifications, SC70-6 package details, functional pin roles, real-world use cases in notebook and telecom systems, and two validated alternative parts with technical and application-level distinctions.

Technical Context

The INA210AIDCKTG4 implements a zero-drift chopper-stabilized amplifier architecture to achieve ±35 µV max input offset and 0.5 µV/°C max drift over –40°C to +125°C. Its differential input stage supports true bidirectional current sensing across shunts at common-mode voltages up to 26 V - independent of its 2.7–26 V supply rail.

It delivers 14 kHz bandwidth with 0.4 V/µs slew rate and 25 nV/√Hz input-referred voltage noise. The device uses internal matched resistor networks (R3 = R4 = 5 kΩ) to set its 200 V/V gain and maintains ≥105 dB CMRR across temperature and common-mode voltage.

Key Specifications

Pinout & Package

INA210AIDCKTG4 is housed in a 6-pin SC70 package (2.00 mm × 1.25 mm body), optimized for space-constrained PCB layouts in portable and telecom equipment. Pin functions are validated per TI SBOS437K Rev K (Nov 2023).

Key Features

Applications

Equivalent & Alternatives

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

Compared with INA210AIDCKR, the G4-suffixed variant offers identical performance in tube packaging for flexibility in small-batch builds; versus INA240A1DRCR, the INA210AIDCKTG4 provides 10× lower offset and 200× higher gain for millivolt-level shunt sensing - at the cost of bandwidth and package compatibility.

Availability

INA210AIDCKTG4 is available at Aetrix Electronics and suitable for battery charger monitoring, telecom power shelf supervision, notebook system power management, and industrial PLC I/O modules requiring stable component supply and long-term manufacturability.

Supply support for INA210AIDCKTG4 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 company delivering analog and embedded processing solutions, with leadership in precision analog, power management, and signal chain technologies.

The INA21x product line was designed specifically for high-accuracy, low-power current sensing in space- and energy-constrained applications - including portable electronics, telecom infrastructure, and industrial power systems.

FAQ

What is the maximum common-mode voltage supported by the INA210AIDCKTG4?

The INA210AIDCKTG4 supports a common-mode input voltage range of –0.3 V to 26 V across its IN+ and IN− pins. This specification is guaranteed for Version A devices like the INA210AIDCKTG4 and enables reliable high-side sensing on 24-V industrial rails or low-side sensing near ground potential without level-shifting circuitry. The device maintains accuracy even when the common-mode voltage exceeds its own supply voltage.

Does the INA210AIDCKTG4 support bidirectional current measurement?

Yes, the INA210AIDCKTG4 supports bidirectional current measurement. Its differential input architecture and output equation V_OUT = 200 × (V_IN+ – V_IN−) + V_REF allow polarity reversal of the sensed voltage across the shunt resistor to produce corresponding positive or negative excursions around the REF voltage. When REF is tied to mid-supply (e.g., 2.5 V), output swings above or below that level indicate forward or reverse current flow.

What is the purpose of the REF pin on the INA210AIDCKTG4?

The REF pin on the INA210AIDCKTG4 sets the output voltage's common-mode level. The output is defined as V_OUT = 200 × (V_IN+ – V_IN−) + V_REF, so connecting REF to ground yields a unipolar 0–2 V output for unidirectional sensing, while tying it to 2.5 V enables bipolar ±2 V output for bidirectional applications. Internal buffering isolates REF from loading effects, though external impedance should be minimized to preserve CMRR.

Can the INA210AIDCKTG4 operate from a 3.3-V supply?

Yes, the INA210AIDCKTG4 operates from 2.7 V to 26 V, making 3.3-V supply fully compliant. At 3.3 V, its output swings within 50 mV of V+ and 5 mV of GND under 10-kΩ load, delivering usable dynamic range. Quiescent current remains ≤100 µA, and all key specs - including ±35 µV offset and 105 dB CMRR - are maintained across the full temperature range (–40°C to +125°C).

Is the INA210AIDCKTG4 pin-compatible with other INA21x variants?

No - the INA210AIDCKTG4 shares the same SC70-6 package and pinout with all INA21x versions (e.g., INA211, INA213), but gain and internal resistor values differ. While physical pin connections (V+, GND, IN+, IN−, REF, OUT) are identical, substituting another variant changes gain (e.g., INA211 = 500 V/V) and alters input bias behavior due to different R3/R4 networks. Electrical validation is required before interchange.