STMicroelectronics TSV782IYDT

Overview

TSV782IYDT from STMicroelectronics is a dual rail-to-rail input/output operational amplifier optimized for high-bandwidth, low-noise sensor signal conditioning. It delivers 30 MHz gain bandwidth, 20 V/µs slew rate, 2 pA typical input bias current, 7 nV/√Hz input voltage noise at 10 kHz, and operates from 2.0 V to 5.5 V supply across –40 °C to +125 °C - enabling precision photodiode transimpedance amplification and high-side current sensing in automotive HEV/EV power management.

For engineers reviewing the TSV782IYDT datasheet, TSV782IYDT pinout, TSV782IYDT application, or TSV782IYDT equivalent, key selection criteria include its ultra-low input bias current for photodiode interfacing, rail-to-rail operation with 10 mV output saturation at 25 °C, 30 MHz bandwidth under 47 pF load, and AEC-Q100-qualified automotive grade availability in SO8 package.

Technical Context

The TSV782IYDT implements a unity-gain-stable two-stage CMOS op amp architecture with rail-to-rail input differential pair and push-pull output stage, supporting stable operation into 47 pF capacitive loads without external compensation. Its phase margin remains ≥45° over full temperature and supply range (2.0–5.5 V), ensuring robust small-signal step response with <200 ns overload recovery.

Input stage uses PMOS-NMOS complementary pairs to achieve 2 pA typ. input bias current and 7 nV/√Hz noise at 10 kHz, while output stage delivers ±55 mA drive capability at 5 V with 10 mV VOL/VOH - critical for driving ADC input buffers and low-impedance current-sense shunts directly.

Key Specifications

Pinout & Package

TSV782IYDT is housed in an SO8 (Small Outline Integrated Circuit, 150 mil width) package with exposed pad not connected internally. Pin functions are electrically validated per DS14011 Rev 7.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-bandwidth, low-input-bias op amp applications.

Compared with TSV7722 and TSV792, the TSV782IYDT uniquely balances 30 MHz bandwidth, 2 pA input bias, and 3.3 mA supply current - making it optimal for automotive current sensing and photodiode interfaces where both speed and ultra-low input error are mandatory.

Availability

TSV782IYDT is available at Aetrix Electronics and suitable for automotive battery monitoring, solar MPPT controllers, and industrial ADC signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TSV782IYDT 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 automotive-grade sensor signal conditioning where low input bias current, rail-to-rail operation, and 125 °C operation are essential.

FAQ

What is the maximum capacitive load the TSV782IYDT can drive without external compensation?

The TSV782IYDT is fully specified and stable with 47 pF capacitive load in unity-gain configuration, as verified in DS14011 Rev 7. For loads exceeding 47 pF, a 10–22 Ω series isolation resistor (RISO) at the output is recommended to suppress peaking and ringing while preserving DC accuracy. Stability is confirmed down to 22 pF without RISO, but 47 pF represents the guaranteed design point for production use.

Does the TSV782IYDT support single-supply operation with input signals near ground?

Yes - the rail-to-rail input stage allows common-mode voltage from VCC− – 0.1 V to VCC+ + 0.1 V. With VCC− tied to GND, inputs accept signals from –0.1 V to VCC+ + 0.1 V, enabling true ground-referenced sensing in 2.0–5.5 V single-supply systems. This is validated across –40 °C to +125 °C and critical for low-side current shunt amplification.

How does the TSV782IYDT perform in automotive EMI environments?

The TSV782IYDT features enhanced EMI rejection ratio (EMIRR) measured from 400 MHz to 2.4 GHz, with <1 µV/V EMIRR on both inputs. Its internal layout and input stage design minimize RF rectification effects - validated per AEC-Q100 test plans. Adding 1–10 pF capacitors on IN+/IN− further improves immunity in noisy engine bay or infotainment proximity scenarios.

Can unused channel be left floating, or must it be terminated?

Unused channel must never be left floating - it must be configured as unity-gain buffer (IN+ tied to IN− and output) or comparator (IN+ and IN− held ≥100 mV apart). Floating inputs cause internal oscillation, increasing supply current by up to 2× and degrading noise performance and crosstalk (CR = 120 dB only when both channels are properly biased).