STMicroelectronics TSV782IQ2T

Overview

TSV782IQ2T from STMicroelectronics is a dual rail-to-rail input/output operational amplifier optimized for high-bandwidth sensor signal conditioning. It delivers 30 MHz gain bandwidth, 20 V/µs slew rate, 2 pA typical input bias current, and operates from 2.0 V to 5.5 V supply - enabling precision low-side/high-side current sensing and photodiode transimpedance amplification in automotive and industrial power management systems.

For engineers reviewing the TSV782IQ2T datasheet, TSV782IQ2T pinout, TSV782IQ2T application, or TSV782IQ2T equivalent, key selection criteria include its ultra-low input bias current (2 pA typ.), rail-to-rail operation at 2 V supply, 7 nV/√Hz input voltage noise at 10 kHz, extended –40 °C to +125 °C temperature range, and DFN8 package suitability for space-constrained HEV/EV battery monitoring and solar MPPT circuits.

Technical Context

The TSV782IQ2T implements a unity-gain-stable voltage-feedback architecture with 30 MHz GBP and 45–50° phase margin across 2–5.5 V supply, ensuring stability with 47 pF capacitive loads - critical for direct A/D converter buffering. Its input stage uses complementary bipolar transistors to achieve 2 pA I_IB and rail-to-rail common-mode range (V_CC– – 0.1 V to V_CC+ + 0.1 V), supporting accurate differential sensing in low-voltage solar and EV battery shunt monitors.

Each amplifier channel features independent 3.3 mA quiescent current per op-amp at 5 V, delivering 55 mA output sink/source capability into 600 Ω while maintaining <20 mV output saturation voltage over temperature. The device's EMI rejection ratio (EMIRR) is characterized from 400 MHz to 2.4 GHz, with design-level mitigation via internal RF filtering - essential for noisy automotive powertrain environments.

Key Specifications

Pinout & Package

TSV782IQ2T is housed in a 2 mm × 2 mm DFN8 package with exposed thermal pad (connectable to V_CC– or left floating). Thermal resistance R_th-jA is 76 °C/W, enabling 150 °C junction operation with modest PCB copper area.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-bandwidth, low-input-bias-current operational amplifier applications.

Compared with TSV7722IDT, TSV782IQ2T offers 36% higher bandwidth and 5× lower input bias for improved accuracy in photodiode and shunt sensing; versus TSV792IYDT, it trades 17 MHz bandwidth for guaranteed automotive qualification, lower noise, and DFN8 space savings - making it optimal for production HEV/EV BMS modules.

Availability

TSV782IQ2T is available at Aetrix Electronics and suitable for high-bandwidth current sensing, photodiode signal conditioning, and automotive-grade A/D converter buffering requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for TSV782IQ2T 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, microcontroller, power, and sensor solutions for automotive, industrial, and consumer markets.

The TSV78x series belongs to ST's precision high-speed op-amp product line, engineered specifically for accuracy-critical sensor interfaces in automotive electrification and renewable energy systems - emphasizing low input bias, rail-to-rail operation, and robust EMI immunity.

FAQ

What is the maximum capacitive load the TSV782IQ2T can drive stably in unity-gain configuration?

The TSV782IQ2T is fully specified and stable driving up to 47 pF capacitive load without external compensation, as verified in the datasheet with 2.0 V, 3.3 V, and 5 V supplies. For loads exceeding 47 pF, a 10–22 Ω series isolation resistor (R_ISO) at the output is recommended to suppress ringing while preserving DC accuracy - a technique validated in Figure 32 of DS14011 Rev 7.

How does the TSV782IQ2T handle unused amplifier channels?

An unused channel must be configured to avoid oscillation and excess current draw: either as a unity-gain buffer (IN+ tied to a valid common-mode voltage within V_CC– – 0.1 V to V_CC+ + 0.1 V) or as an open-loop comparator (with ≥100 mV differential input and |V_ID| < 2 V). Leaving inputs floating or shorted violates absolute maximum ratings and risks instability affecting the active channel.

Is the exposed thermal pad on the DFN8 package electrically connected?

No - the exposed pad on the TSV782IQ2T's DFN8 package is not internally connected to any circuit node. It may be soldered to a PCB ground plane or V_CC– pour to improve thermal dissipation (reducing R_th-jA from 76 °C/W), or left electrically floating if thermal requirements permit. No voltage rating or electrical specification applies to the pad itself.

Does the TSV782IQ2T support true single-supply operation down to 2.0 V with rail-to-rail inputs?

Yes - the TSV782IQ2T guarantees rail-to-rail input operation from V_CC– – 0.1 V to V_CC+ + 0.1 V across the full 2.0–5.5 V supply range and –40 °C to +125 °C temperature range. At 2.0 V supply, input common-mode range extends from –0.1 V to +2.1 V, enabling direct interfacing with grounded shunts and sensors without level-shifting circuitry.