STMicroelectronics TSV992IDT

Overview

TSV992IDT from STMicroelectronics is a dual rail-to-rail input/output operational amplifier optimized for low-voltage, low-power applications. It delivers 20 MHz gain-bandwidth at 820 µA supply current per channel, supports 2.5 V to 5.5 V operation, features 1.5 mV max input offset voltage (A grade), and drives ±35 mA output current. It is used in precision sensor signal conditioning within battery-powered medical instrumentation.

For engineers reviewing the TSV992IDT datasheet, TSV992IDT pinout, TSV992IDT application, or TSV992IDT equivalent, key selection criteria include minimum stable gain (≥4 or ≤–3), ultra-low input bias current (1 pA typ.), rail-to-rail swing capability, thermal resistance (125 °C/W for SO8), and ESD robustness (≥5 kV HBM).

Technical Context

The TSV992IDT employs a high-speed, low-power CMOS input stage enabling 1 pA typical input bias current and rail-to-rail common-mode input range (VCC– –0.1 V to VCC+ +0.1 V). Its internal compensation requires minimum closed-loop gain of 4 (non-inverting) or –3 (inverting) for phase margin ≥45° with 100 pF capacitive load.

It achieves 10 V/μs slew rate and 21 nV/√Hz input voltage noise at 10 kHz while maintaining 0.0014% THD+N at 1 kHz (4.4 Vpp output, 5 V supply). Stability under capacitive loading is managed via external series output resistor or feedback capacitor, not unity-gain stable by design.

Key Specifications

Pinout & Package

TSV992IDT is supplied in an 8-pin SO8 package (body size 5.0 × 4.0 mm, pitch 1.27 mm), RoHS-compliant and moisture sensitivity level 3. Pin 1 is marked with a dot; exposed pad is not internally connected and may be left floating or tied to VCC–.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TSV912IDT, TSV992IDT trades 12 MHz bandwidth and higher output drive for 2× supply current; versus MCP6022-E/SN, it offers superior ESD immunity and lower input bias at the cost of higher offset voltage and reduced DC precision.

Availability

TSV992IDT is available at Aetrix Electronics and suitable for battery-powered medical instrumentation, automotive cabin air quality modules, and wearable pulse oximeter analog front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TSV992IDT 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 management ICs, sensors, and analog components for industrial, automotive, and consumer markets.

The TSV99x family was developed specifically for high-accuracy, low-power signal conditioning in space-constrained, battery-operated systems-emphasizing rail-to-rail operation, low input bias, and robust stability under real-world capacitive loads.

FAQ

Is TSV992IDT unity-gain stable?

No. The TSV992IDT is not unity-gain stable and requires minimum closed-loop gain of 4 (non-inverting) or –3 (inverting) for stable operation with ≥45° phase margin. For unity-gain applications, a small series resistor (e.g., 10–50 Ω) at the output is recommended, followed by bench validation per Section 5.1 of DS4975.

What is the maximum capacitive load the TSV992IDT can drive without oscillation?

When configured with gain ≥4, the TSV992IDT remains stable with up to 100 pF capacitive load at the output, as verified in the datasheet's phase margin test conditions. Driving larger loads requires external compensation-either a series resistor at the output or a feedback capacitor across Rf-to maintain stability.

Does the exposed pad on the SO8 package require PCB connection?

No. Per Figure 20 and datasheet note, the exposed pad on the TSV992IDT SO8 package is not internally connected. It may be left electrically floating or tied to VCC– for improved thermal conduction-no electrical function is assigned to this pad.

How does the TSV992IDT perform in automotive temperature ranges?

The TSV992IDT is rated for –40°C to +125°C operating free-air temperature, meeting standard automotive ambient requirements. Its input offset voltage drift (2 µV/°C) and supply current variation (<10% over temperature) ensure consistent performance in cabin air quality or body control modules without recalibration.