STMicroelectronics TSV782IDT

Overview

TSV782IDT 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 in automotive HEV/EV power management systems.

For engineers reviewing the TSV782IDT datasheet, TSV782IDT pinout, TSV782IDT application, or TSV782IDT equivalent, this device is selected for photodiode transimpedance amplification, ADC input buffering with 47 pF load drive, and high-accuracy current measurement where ultra-low input bias current and wide temperature range (–40 °C to +125 °C) are critical.

Technical Context

The TSV782IDT integrates two independent unity-gain-stable amplifiers with matched AC performance: 30 MHz GBP and 20 V/µs slew rate at 5 V, degrading to 17 V/µs at 2 V. Its rail-to-rail input stage supports common-mode voltage from VCC− – 0.1 V to VCC+ + 0.1 V, while rail-to-rail output delivers <20 mV saturation voltage over full temperature range.

Designed for stability with 47 pF capacitive loads, it achieves 45°–50° phase margin and 9 dB gain margin across supply voltages. Input voltage noise density is 7 nV/√Hz at 10 kHz and rises to 13 nV/√Hz at 2 V supply, confirming low-noise operation under battery-constrained conditions.

Key Specifications

Pinout & Package

TSV782IDT is housed in an SO8 package (8-pin small outline integrated circuit) with exposed pad not present. Pin functions are validated per DS14011 Rev 7 (page 2/34).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TSV7722, TSV782IDT provides 36% higher bandwidth and 5× lower input bias current for photodiode interfaces; compared with TSV792, it reduces supply current by 40% while retaining sufficient speed for most HEV current sensing and ADC buffering tasks.

Availability

TSV782IDT is available at Aetrix Electronics and suitable for high-bandwidth current sensing, photodiode signal conditioning, and ADC input buffering requiring stable component supply across automotive, industrial, and renewable energy applications.

Supply support for TSV782IDT 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 accurate, low-noise signal conditioning in battery-constrained and thermally demanding environments such as EV power stages and portable instrumentation.

FAQ

Is TSV782IDT pin-compatible with other SO8 dual op amps like LM358 or MCP6022?

No. TSV782IDT uses a non-standard SO8 pinout: OUT1–IN1−–IN1+–VCC−–IN2+–IN2−–OUT2–VCC+. LM358 and MCP6022 follow industry-standard dual-op-amp pinouts (IN1−–IN1+–VCC−–OUT1–IN2−–IN2+–VCC+–OUT2), making direct replacement impossible without PCB redesign.

Can TSV782IDT drive a 100 pF capacitive load in unity-gain configuration?

Not stably without external compensation. The datasheet specifies guaranteed stability only up to 47 pF. For 100 pF loads, a 10–22 Ω isolation resistor (R_ISO) must be placed in series with the output to suppress peaking and ringing, as confirmed in Figure 27 and Section 5.7 of DS14011 Rev 7.

What is the maximum output current capability of each amplifier channel?

Each channel delivers ≥55 mA sink/source current at 25 °C with 5 V supply, dropping to ≥37 mA sink and ≥45 mA source at –40 °C to +125 °C. This is verified under RL = 600 Ω with V_OUT within 300 mV of rails (Table 5, DS14011 Rev 7, page 5/34).

Does TSV782IDT support single-supply operation below 2.5 V?

Yes. It is fully specified down to 2.0 V supply, with tested performance including 30 MHz GBP, 13–17 V/µs slew rate, and rail-to-rail I/O operation. At 2.0 V, input common-mode range extends from VCC− – 0.1 V to VCC+ + 0.1 V, enabling use in coin-cell or energy-harvesting systems.