STMicroelectronics TSV774IYQ5T

Overview

TSV774IYQ5T from STMicroelectronics is a quad rail-to-rail input/output operational amplifier optimized for high-bandwidth precision signal conditioning in automotive and industrial systems. It delivers 20 MHz gain bandwidth, 13 V/µs slew rate, 50 µV typical input offset voltage, and operates from 2.0 V to 5.5 V single supply - enabling accurate amplification of low-amplitude sensor signals in current sensing and photodiode interfaces.

For engineers reviewing the TSV774IYQ5T datasheet, TSV774IYQ5T pinout, TSV774IYQ5T application, or TSV774IYQ5T equivalent, key selection criteria include its 4 kV HBM ESD rating, -40 °C to +125 °C extended temperature range, 7 nV/√Hz input voltage noise at 10 kHz, and verified stability with 47 pF capacitive load - critical for A/D converter input buffering and high-side current measurement circuits.

Technical Context

The TSV774IYQ5T employs a dual-input-stage architecture supporting rail-to-rail common-mode input range (VCC− −0.2 V to VCC+ +0.1 V), with optimal precision maintained between VCC− −0.1 V and VCC+ −1.8 V where CMRR exceeds 90 dB. Its unity-gain-stable design achieves 50° phase margin and 9 dB gain margin across supply voltages from 2.0 V to 5.5 V.

Each channel draws only 1.9 mA quiescent current at 25 °C and drives ±45 mA output current while maintaining rail-to-rail swing. The device features low 2 pA max input bias current and 7 µVpp integrated input noise (0.1–10 Hz), making it suitable for high-impedance photodiode and precision current-sense applications where bias-induced error must be minimized.

Key Specifications

Pinout & Package

TSV774IYQ5T is packaged in QFN16 (3 × 3 mm, wettable flank), featuring an exposed thermal pad (pin 11 connected to VCC−) for enhanced thermal performance in space-constrained automotive modules.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad precision op amp applications.

Compared with TSV774IYQ5T, TSV794IYQ5T trades lower supply flexibility for higher speed and accuracy, while LMV324QDRQ1 sacrifices bandwidth and offset for cost and legacy compatibility - making TSV774IYQ5T the optimal balance for 20 MHz precision signal chains in constrained 2.0–5.5 V automotive systems.

Availability

TSV774IYQ5T is available at Aetrix Electronics and suitable for automotive battery management, industrial current monitoring, and medical photodetector systems requiring stable component supply across extended temperature and voltage ranges.

Supply support for TSV774IYQ5T 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 microcontrollers, power ICs, sensors, and analog components for automotive, industrial, and consumer markets.

The TSV774 belongs to ST's high-precision, high-speed operational amplifier product line - engineered specifically for automotive-grade signal conditioning where accuracy, noise, and temperature stability are critical in safety-relevant subsystems.

FAQ

What is the maximum capacitive load the TSV774IYQ5T can drive without external compensation?

The TSV774IYQ5T is fully characterized and stable with up to 47 pF capacitive load in unity-gain configuration, as confirmed in DS13842 Rev 7. Driving larger loads (e.g., >100 pF) requires a series isolation resistor (10–33 Ω) between output and load to maintain phase margin above 47° and prevent ringing in step response.

How does the dual-input-stage architecture affect common-mode rejection at VCC+ − 0.5 V?

At VCC+ − 0.5 V, the TSV774IYQ5T operates near the transition point between input transistor pairs, where CMRR degrades to ~76 dB (min) per Table 7. For best precision, operation should be limited to the low-pair range (VCC− −0.1 V to VCC+ −1.8 V), where CMRR remains ≥90 dB across temperature.

Can unused channels be left floating, or do they require specific termination?

Unused channels must not be left floating: each must be configured as either a unity-gain buffer (IN+ tied to valid Vicm voltage, IN− to OUT) or open-loop comparator (IN+ and IN− held ≥100 mV apart). Floating inputs cause internal oscillation, increasing supply current by up to 3× and injecting noise into active channels.

Is the exposed thermal pad on the QFN16 package electrically functional or only for thermal conduction?

The exposed pad on the TSV774IYQ5T QFN16 is electrically connected to VCC− and must be soldered to a PCB copper pour tied to the system VCC− plane. This provides both thermal conduction (reducing θJA to 39 °C/W) and electrical grounding - leaving it unconnected degrades thermal performance and may cause instability.