Texas Instruments TSV912AIDDFR

Overview

TSV912AIDDFR from Texas Instruments is a dual-channel rail-to-rail input/output operational amplifier optimized for low-power, precision signal conditioning in single-supply systems. It delivers 8 MHz gain bandwidth, 18 nV/√Hz input voltage noise at 1 kHz, 550 µA typical quiescent current per channel, and ±1.5 mV maximum input offset voltage across –40°C to 125°C - enabling high-fidelity sensor interfacing in battery-powered HVAC controllers.

For engineers reviewing the TSV912AIDDFR datasheet, TSV912AIDDFR pinout, TSV912AIDDFR application, or TSV912AIDDFR equivalent, key selection criteria include unity-gain stability with capacitive loads up to 300 pF, rail-to-rail output swing within 15 mV of supply rails at 5.5 V, and ultra-low 1 pA typical input bias current for high-impedance source compatibility.

Technical Context

The TSV912AIDDFR employs a complementary differential input stage (N- and P-channel pairs) enabling true rail-to-rail common-mode input range - extending 100 mV beyond both supply rails across 2.5 V–5.5 V operation. Its unity-gain stable architecture supports direct driving of SAR ADC inputs without external compensation.

It features integrated RFI-EMI rejection filtering, no phase reversal under overdrive, and robust ±4-kV HBM ESD protection. The device maintains ≥80 dB CMRR over –40°C to 125°C and achieves 0.5 µV/°C typical offset drift - critical for long-term accuracy in motor control feedback loops and medical instrumentation front-ends.

Key Specifications

Pinout & Package

TSV912AIDDFR is housed in an 8-pin SOT-23 (DDF) package measuring 1.60 mm × 2.90 mm, optimized for space-constrained PCB layouts in portable and embedded systems.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel rail-to-rail op amp applications.

Compared with LMV932IDGKR and MCP6022-E/SN, the TSV912AIDDFR offers superior bandwidth-noise-efficiency balance for modern compact sensor systems - delivering 8× higher GBW than LMV932IDGKR and 3× lower input noise than MCP6022-E/SN while maintaining identical SOT-23-8 footprint compatibility.

Availability

TSV912AIDDFR is available at Aetrix Electronics and suitable for battery-powered sensor nodes, motor control feedback circuits, and medical instrumentation front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TSV912AIDDFR 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 op amp design and manufacturing.

The TSV91x family was engineered for general-purpose, low-power signal conditioning - targeting applications demanding rail-to-rail operation, wide temperature tolerance, and robust ESD immunity in cost-sensitive industrial and consumer systems.

FAQ

What is the maximum capacitive load the TSV912AIDDFR can drive while maintaining stability?

The TSV912AIDDFR remains unity-gain stable with capacitive loads up to 300 pF, as verified by overshoot vs. load capacitance testing in the official datasheet (Figure C025). This capability eliminates the need for isolation resistors in anti-aliasing filter designs and supports direct driving of long PCB traces or shielded cables in motor control applications. For loads exceeding 300 pF, external compensation or a series resistor is recommended.

Does the TSV912AIDDFR support single-supply operation down to 2.5 V?

Yes, the TSV912AIDDFR operates across a supply range of 2.5 V to 5.5 V, with full rail-to-rail input and output functionality maintained at the 2.5-V minimum. At this voltage, it delivers 8 MHz gain bandwidth and 550 µA typical quiescent current per channel - making it ideal for energy-harvesting systems and coin-cell-powered devices where supply headroom is constrained.

How does the input stage architecture of the TSV912AIDDFR prevent phase reversal?

The TSV912AIDDFR uses a complementary N-channel/P-channel input pair that ensures continuous conduction across the full common-mode range. Unlike single-pair architectures, this design avoids the input stage cutoff condition that causes phase reversal during overdrive. As confirmed in the datasheet's "No Phase Reversal" test (Figure C024), the TSV912AIDDFR maintains correct polarity even when inputs exceed V+ or fall below V– by 100 mV.

What is the thermal performance of the TSV912AIDDFR in its SOT-23-8 (DDF) package?

In the DDF package, the TSV912AIDDFR has a junction-to-ambient thermal resistance (RθJA) of 184.4°C/W and a junction-to-board resistance (RθJB) of 99.9°C/W, per TI's SBOS878D datasheet Section 7.5. These values indicate moderate self-heating under full-load conditions; for continuous 550 µA/channel operation at 125°C ambient, board-level copper area and thermal vias beneath the exposed pad are recommended to maintain safe junction temperatures.

Can the TSV912AIDDFR replace older-generation dual op amps like the TLC2272 in existing designs?

The TSV912AIDDFR is pin-compatible with the TLC2272 in SOIC-8 but not in SOT-23-8 (TLC2272 is not offered in DDF). When migrating from TLC2272, verify that the 8-MHz GBW and lower 1.5-mV max offset of the TSV912AIDDFR do not require loop compensation changes. Its 1-pA input bias current also improves accuracy with high-impedance sources - a measurable benefit in sensor interfaces where TLC2272 exhibits ~10-pA bias.