Texas Instruments INA200AIDGKT

Overview

INA200AIDGKT from Texas Instruments is a high-side current-shunt monitor IC with integrated open-drain comparator and 0.6-V internal reference, designed for overcurrent detection in power rails up to 80 V common-mode. It provides fixed 20 V/V gain, 500-kHz bandwidth, ±3.5% total output error over temperature, and operates from 2.7 V to 18 V supply. Used in telecom power supplies for real-time load current monitoring and fault latching.

For engineers reviewing the INA200AIDGKT datasheet, INA200AIDGKT pinout, INA200AIDGKT application, or INA200AIDGKT equivalent, this page delivers verified specifications, validated pin functions, confirmed SOIC-8 and VSSOP-8 package mapping, and two rigorously cross-checked alternative parts for high-side current sensing with comparator latch functionality.

Technical Context

The INA200AIDGKT implements a precision current-sense amplifier with differential inputs (VIN+, VIN−) referenced to high-side shunt placements, enabling measurement across –16 V to +80 V common-mode voltages. Its 20 V/V gain path drives an analog voltage output (OUT), while a dedicated comparator stage compares CMPIN against a stable 0.6-V internal reference.

Comparator operation supports latching via CMPOUT (open-drain) and RESET (active-low, internally pulled down), allowing persistent fault indication until reset. The device draws ≤1800 μA quiescent current and maintains specified performance from –40°C to +125°C.

Key Specifications

Pinout & Package

VSSOP-8 (DGK) package: 3.00 mm × 3.00 mm body, thin-profile surface-mount, thermal resistance θJA = 162.2°C/W.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side current sensing with comparator applications.

Compared with INA200AIDGKT, INA201AIDGKT offers higher sensitivity at the cost of bandwidth, while INA219AIDR trades analog latch reliability and 80-V tolerance for digital configurability and data logging - selection depends on whether deterministic hardware fault response or software-defined flexibility is prioritized.

Availability

INA200AIDGKT is available at Aetrix Electronics and suitable for telecom power supplies, automotive battery management systems, and industrial motor drive protection requiring stable component supply across extended temperature and high common-mode voltage ranges.

Supply support for INA200AIDGKT 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 INA20x family was engineered specifically for high-reliability high-side current monitoring in harsh electrical environments - targeting applications where wide common-mode range, integrated fault detection, and extended temperature operation are mandatory.

FAQ

What is the maximum common-mode voltage supported by the INA200AIDGKT?

The INA200AIDGKT supports a common-mode input voltage range from –16 V to +80 V. This specification is validated across the full operating temperature range (–40°C to +125°C) and enables direct high-side shunt placement in 48-V telecom systems, 24-V industrial controls, and automotive 12-V/42-V architectures without level-shifting circuitry. The INA200AIDGKT maintains accuracy within ±3.5% total error across this entire range.

Does the INA200AIDGKT require an external reference for the comparator function?

No, the INA200AIDGKT integrates a precision 0.6-V internal reference for the comparator stage. This eliminates the need for external reference components and ensures stable trip thresholds across temperature (586–625 mV). The comparator compares CMPIN against this internal reference, and external resistor dividers set the actual current trip point - the INA200AIDGKT itself provides the reference voltage source.

How does the latch feature work on the INA200AIDGKT comparator output?

The INA200AIDGKT comparator output (CMPOUT) latches upon exceeding the trip threshold and remains asserted until the RESET pin is driven low. Leaving RESET open or grounded places the comparator in transparent mode (non-latching). Latch behavior is essential for capturing intermittent faults in unattended systems - the INA200AIDGKT holds CMPOUT low until a deliberate reset pulse clears the condition.

Can the INA200AIDGKT operate from a 3.3-V supply?

Yes, the INA200AIDGKT operates from a minimum supply voltage of 2.7 V, making it fully compatible with 3.3-V systems. At 3.3 V, the OUT pin swings from GND + 4 mV to VS – 0.25 V (≈3.05 V), and CMPOUT can be pulled up to 3.3 V or any compatible logic rail (2.7–18 V). Quiescent current remains ≤1800 μA, ensuring low power consumption in battery-backed monitoring circuits.

What package options are available for the INA200AIDGKT?

INA200AIDGKT is offered in the VSSOP-8 (DGK) package - a 3.00 mm × 3.00 mm, 0.65-mm pitch surface-mount package with exposed thermal pad. This compact footprint supports high-density PCB layouts in space-constrained applications like telecom line cards and automotive ECUs. Pin-compatible SOIC-8 (D) variants exist for the INA200 family but are designated by different suffixes (e.g., INA200AIDR).