STMicroelectronics TSX922IQ2T

Overview

TSX922IQ2T from STMicroelectronics is a dual rail-to-rail input/output CMOS operational amplifier designed for precision analog signal conditioning in automotive and industrial systems. It delivers 10 MHz gain bandwidth, 17.2 V/µs negative slew rate, and 0.0003 % THD+N at 1 kHz with 4 Vrms output - enabling high-fidelity active filtering and I/V conversion for ADC front-ends.

For engineers reviewing the TSX922IQ2T datasheet, TSX922IQ2T pinout, TSX922IQ2T application, or TSX922IQ2T equivalent, this device supports demanding timing-critical analog paths in communications infrastructure, process control instrumentation, and automotive sensor signal chains where wide supply range (4–16 V), extended temperature operation (−40 °C to 125 °C), and ESD robustness (4 kV HBM) are mandatory.

Technical Context

The TSX922IQ2T employs a fully complementary CMOS input stage enabling true rail-to-rail common-mode input voltage range (VCC− −0.1 V to VCC+ +0.1 V) and rail-to-rail output swing within 50 mV of either rail under 10 kΩ load at 16 V supply. Its unity-gain stable architecture achieves 55° phase margin with 10 kΩ//20 pF load at 16 V.

It features low input bias current (10 pA typ), high CMRR (85 dB min at 10 V), and low 1/f noise (8.58 µVpp, 0.1–10 Hz), making it suitable for high-impedance sensor interfaces and precision DC-coupled amplification where offset drift (2–15 µV/°C) and long-term stability (<2.26 nV/√month) are critical.

Key Specifications

Pinout & Package

TSX922IQ2T is housed in an 8-pin MiniSO (SO8) package with exposed pad for thermal enhancement. Pin 1 is marked by a beveled corner or dot; the device uses standard SO8 footprint (5.0 mm × 4.0 mm, 1.25 mm height).

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 and LMV358QDRQ1, TSX922IQ2T uniquely combines 10 MHz bandwidth, 16 V operation, and AEC-Q100 Grade 1 qualification - making it the only option among the three for high-fidelity, high-voltage automotive and industrial signal conditioning.

Availability

TSX922IQ2T is available at Aetrix Electronics and suitable for automotive battery monitoring, industrial process transmitters, communications infrastructure amplifiers, and test equipment front-ends requiring stable component supply across extended temperature and voltage ranges.

Supply support for TSX922IQ2T 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, with design centers and manufacturing facilities across Europe, Asia, and the Americas.

The TSX92x family was engineered specifically for high-performance analog signal conditioning in automotive and industrial environments where rail-to-rail operation, wide supply range, and robustness across temperature extremes are non-negotiable.

FAQ

What is the maximum capacitive load the TSX922IQ2T can drive without instability?

The TSX922IQ2T remains stable with up to 120 pF capacitive load when driving a 10 kΩ resistive load at 16 V supply, as verified by phase margin >55° in datasheet Figure 21. For loads >47 pF, adding a small series resistor (10–50 Ω) between output and capacitance restores full stability without degrading bandwidth significantly.

Does TSX922IQ2T support single-supply operation?

Yes - TSX922IQ2T operates from a single 4–16 V supply with VCC− tied to ground. Its rail-to-rail input allows common-mode voltages down to ground, and rail-to-rail output delivers full swing from near 0 V to within 50 mV of VCC+, enabling true single-supply signal chain design without level-shifting circuitry.

How does the input offset voltage drift behave over temperature?

Input offset voltage drift is specified as 2–15 µV/°C depending on order code; TSX922IQ2T (MiniSO8 variant) exhibits ≤10 µV/°C typical drift. This is confirmed in Table 3–5 and Figure 7, where measured distributions show >90% of units fall within ±5 µV/°C at 16 V supply - critical for uncalibrated DC measurement accuracy.

Is shutdown mode available on TSX922IQ2T?

No - shutdown functionality is only implemented on the TSX920 (single) and TSX923 (dual with 10-pin MiniSO10), not on TSX922 variants including TSX922IQ2T. The TSX922IQ2T draws 2.8 mA per amplifier at 16 V and has no dedicated SHDN pin; power reduction requires external supply gating.