Texas Instruments INA500CIDBVR

Overview

INA500CIDBVR from Texas Instruments is a precision difference amplifier optimized for low-power, space-constrained battery monitoring and level-translation applications. It delivers G = 0.25 fixed gain, >1 MΩ input impedance, ±0.40 mV typical offset voltage (RTO), 85 dB typical CMRR, and 13.5 µA typical quiescent current across 1.7 V to 5.5 V supply. Used in EV charging power modules and battery energy storage systems for high-side current sensing.

For engineers reviewing the INA500CIDBVR datasheet, INA500CIDBVR pinout, INA500CIDBVR application, or INA500CIDBVR equivalent, key selection criteria include its 0.25 gain configuration, X2SON-6 package footprint (1.0 mm × 0.8 mm), rail-to-rail input common-mode range up to 5×(V–) – 4×V_REF, and compatibility with 8-bit to 12-bit ADC interfaces in ultra-low-power embedded systems.

Technical Context

The INA500CIDBVR implements a fully integrated difference amplifier architecture with laser-trimmed matched thin-film resistors enabling precise 0.25 gain without external components. Its input stage supports differential input resistance of 3.36 MΩ and common-mode resistance of 1.05 MΩ, enabling direct connection to high-impedance voltage nodes.

It operates over –40°C to +125°C with guaranteed 77.7 dB minimum DC CMRR at G = 0.25 and handles up to ±13.75 V input common-mode voltage when supplied at 5.5 V (±2.75 V). The device drives ≥100 pF loads with <20% overshoot and features 160 kHz bandwidth and 0.19 V/µs slew rate.

Key Specifications

Pinout & Package

INA500CIDBVR is packaged in a 6-pin X2SON (DTQ) package measuring 1.0 mm × 0.8 mm with 0.35 mm pitch, optimized for ultra-dense PCB layouts in portable and automotive power modules.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar difference amplifier applications.

Compared with INA500AIDBVR and INA500BIDBVR, the INA500CIDBVR provides the lowest gain (0.25) and highest input common-mode range, making it uniquely suited for high-voltage differential sensing where signal attenuation is mandatory and noise floor is secondary to dynamic range.

Availability

INA500CIDBVR is available at Aetrix Electronics and suitable for battery energy storage systems, EV charging station power modules, and wearable fitness monitors requiring stable component supply across extended product lifecycles.

Supply support for INA500CIDBVR 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 and embedded processing solutions for industrial, automotive, and personal electronics markets.

The INA500 family is designed for cost-sensitive, space-constrained voltage sensing in battery management, power conversion, and portable instrumentation-emphasizing integrated precision, ultra-low power, and small-footprint packaging.

FAQ

What is the gain configuration of the INA500CIDBVR?

The INA500CIDBVR is factory-configured for fixed gain of 0.25. This is achieved via internal laser-trimmed thin-film resistors and cannot be altered externally. The gain is specified and tested per TI SBOSAI9B datasheet Section 6.7, with ±0.003% typical gain error and ±0.1% maximum over temperature. This makes INA500CIDBVR ideal for attenuating high-voltage differential signals prior to low-voltage ADC input stages.

Does the INA500CIDBVR require external resistors for gain setting?

No, the INA500CIDBVR does not require external resistors for gain setting. Its G = 0.25 ratio is implemented using monolithic, laser-trimmed matched resistors integrated into the die. This eliminates resistor matching errors, thermal drift mismatch, and PCB layout sensitivity-reducing BOM count and improving long-term accuracy. The INA500CIDBVR achieves ±0.003% typical gain error without any external components.

What is the maximum input common-mode voltage supported by the INA500CIDBVR?

At 5.5 V supply (±2.75 V dual), the INA500CIDBVR supports an input common-mode voltage range of 5×(V–) – 4×V_REF to 5×(V+) – 4×V_REF, enabling up to ±13.75 V input CMV. This is confirmed in Section 6.7 of the SBOSAI9B datasheet. The specification applies specifically to the INA500C version (including INA500CIDBVR) and allows direct sensing across multi-cell battery strings without level-shifting circuitry.

Can the INA500CIDBVR operate from a single 1.8 V supply?

Yes, the INA500CIDBVR operates from a single 1.8 V supply (V+ = 1.8 V, V– = 0 V), meeting its 1.7 V minimum supply requirement. Quiescent current remains 14.5 µA typical at 1.7 V (Section 6.5), and output swing is rail-to-rail within 15 mV of each rail. Performance metrics including CMRR and gain error remain valid across the full 1.7 V–5.5 V range, as verified in TI's recommended operating conditions table.

Which package does the INA500CIDBVR use, and what are its dimensions?

The INA500CIDBVR uses the X2SON-6 (DTQ) package: 1.0 mm × 0.8 mm body size with 0.35 mm pin pitch. This is confirmed in Package Information tables and Figure 5-3 of the SBOSAI9B datasheet. The DTQ variant is a surface-mount, leadless package with exposed thermal pad (not electrically connected), optimized for thermal performance and ultra-compact layouts in portable and automotive power modules.