STMicroelectronics TSX9292IYDT

Overview

TSX9292IYDT from STMicroelectronics is a dual rail-to-rail input/output CMOS operational amplifier optimized for high-speed, wide-supply applications. It delivers 16 MHz gain bandwidth, 27 V/µs slew rate, and 0.0003 % THD+N at 1 kHz with 4 V–16 V supply, operating reliably from –40 °C to +125 °C. It is stable in non-inverting gain ≥2 or inverting gain ≤–1 configurations and qualified for automotive use.

For engineers reviewing the TSX9292IYDT datasheet, TSX9292IYDT pinout, TSX9292IYDT application, or TSX9292IYDT equivalent, key selection criteria include unity-gain-stable alternatives, rail-to-rail performance under 16 V supply, stability in precision active filtering, and ESD-hardened (4 kV HBM) operation in harsh environments.

Technical Context

The TSX9292 is a decompensated, internally compensated op amp requiring minimum closed-loop gain of +2 (non-inverting) or –1 (inverting) for phase margin ≥60°. Its CMOS input stage enables 10 pA typical input bias current and 1 TΩ input resistance, while rail-to-rail output swing supports full dynamic range utilization across 4–16 V supplies.

It features low-frequency noise of 8.58 µV_PP (0.1–10 Hz), 16.5 nV/√Hz input voltage noise at 10 kHz, and maintains 73 dB supply voltage rejection ratio over its full operating range - critical for precision signal conditioning in noisy industrial power rails.

Key Specifications

Pinout & Package

TSX9292IYDT is housed in an 8-pin MiniSO package (3.0 mm × 3.0 mm, 0.65 mm pitch), thermally enhanced for industrial ambient operation. Pin numbering follows standard SO-8 convention with exposed pad connected to V– for improved thermal dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TSX9292IYDT, TSV912IDT trades 16 V operation and 16 MHz bandwidth for ultra-low voltage compatibility, while LMV722MM/NOPB offers lower cost but sacrifices AEC-Q100 validation, ESD rating, and slew rate - making TSX9292IYDT the sole choice for 12–16 V automotive signal chains requiring precision and speed.

Availability

TSX9292IYDT is available at Aetrix Electronics and suitable for active filtering, high-side current sensing, photodiode transimpedance amplification, and industrial communications signal conditioning requiring stable component supply across automotive and industrial temperature grades.

Supply support for TSX9292IYDT 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 industrial, automotive, and consumer markets.

The TSX92 series targets high-performance analog signal conditioning in demanding environments, emphasizing unity-gain stability, rail-to-rail operation, and extended temperature reliability - specifically engineered for automotive subsystems and industrial control loops.

FAQ

Can TSX9292IYDT be used in unity-gain buffer configuration?

No - the TSX9292 is decompensated and unstable at unity gain. It requires minimum non-inverting gain of +2 or inverting gain of –1 for stable operation, as verified by phase margin ≥60° in datasheet Figure 13 and Section 4.4. For unity-gain applications, ST recommends the TSX9294 (quad version, unity-gain stable) or TSV911.

What is the maximum capacitive load the TSX9292IYDT can drive without oscillation?

At G = +2 and V_CC = 16 V, the TSX9292IYDT remains stable with ≤47 pF capacitive load when no feedback capacitor is used (Figure 19). With 5–12 pF feedback capacitance (C_f), it safely drives ≥100 pF loads - confirmed by overshoot <5% in Figure 22 and step response tests in Figures 23–25.

Does TSX9292IYDT support single-supply operation with ground-referenced inputs?

Yes - its rail-to-rail input stage accepts common-mode voltages from V– – 0.1 V to V+ + 0.1 V. When V– = 0 V, inputs operate from –0.1 V to V+ + 0.1 V, enabling true ground-referenced signal acquisition without level-shifting, as specified in Table 3 and Section 4.3.

How does the TSX9292IYDT's long-term input offset drift impact precision designs?

At 125 °C, long-term drift is 2.26 mV after 1000 hours (Table 6 note 1), extrapolated to 25 °C. In a 10-bit 3.3 V ADC system with 1 kΩ shunt, this drift introduces ≤0.7 LSB error after 1000 h - acceptable for non-critical industrial monitoring but warrants calibration in metrology-grade applications.