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Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

STMicroelectronics TSX9292IDT

Name: TSX9292IDT
Brand: STMicroelectronics
SKU: TSX9292IDT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TSX9292IDT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: TSX9292IDT.pdf

Description:: IC CMOS 2 CIRCUIT 8SOIC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TSX9292IDT from STMicroelectronics is a dual, decompensated rail-to-rail input/output CMOS operational amplifier optimized for high-speed, unity-gain-stable 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, targeting active filtering and I/V amplification in automotive-grade signal chains.

For engineers reviewing the TSX9292IDT datasheet, TSX9292IDT pinout, TSX9292IDT application, or TSX9292IDT equivalent, this page provides verified pin mapping for MiniSO8, confirmed stability constraints (gain ≥ +2 or ≤ –1), real-world noise performance (8.58 µVpp, 0.1–10 Hz), and automotive-qualified thermal operation (–40 °C to +125 °C).

Technical Context

The TSX9292 is a decompensated op amp requiring minimum closed-loop gain of +2 or –1 for phase margin ≥60°; it achieves stable operation without external compensation under those conditions. Its rail-to-rail input stage uses complementary PMOS/NMOS differential pairs, enabling full common-mode range from V_CC– –0.1 V to V_CC+ +0.1 V across 4–16 V supplies.

The output stage employs a Class AB rail-to-rail architecture delivering ±45 mA sink/source at 16 V, with low distortion (0.0003 % THD+N) and 245 ns 0.1% settling time. Input bias current remains ultra-low (10 pA typ) due to CMOS input transistors, supporting high-impedance sensor interfaces.

Key Specifications

Parameter	Value and Actual Design Meaning
Gain Bandwidth Product	16 MHz at 16 V - enables stable closed-loop designs up to ~7.5 MHz with gain = +2
Slew Rate	27 V/µs (positive), 27 V/µs (negative) at 16 V - supports fast 10-bit ADC driving with <250 ns settling
Supply Voltage Range	4 V to 16 V - compatible with 5 V, 12 V, and automotive 12 V battery rails without regulation
Input Offset Voltage	5 mV max over temperature - ensures <±10 mV error in 12-bit precision I/V conversion at 16 V
THD+N	0.0003 % at 1 kHz, 4 V_RMS - meets audio-grade line driver and active filter spectral purity requirements
ESD Rating	4 kV HBM - provides robustness during PCB handling and system-level ESD events in automotive modules
Operating Temperature	–40 °C to +125 °C - qualified per AEC-Q100 Grade 1 for engine control, ADAS sensor front-ends

Pinout & Package

TSX9292IDT is housed in an 8-pin MiniSO package (3.0 mm × 3.0 mm, 0.65 mm pitch), thermally enhanced for industrial and automotive ambient conditions. Pin 1 is marked by a dot; device orientation follows JEDEC MO-187AA standard.

Pin/Terminal	Circuit Role	Design Meaning
1 (OUT A)	Amplifier A output	Capable of sourcing/sinking ±45 mA at 16 V; rail-to-rail swing within 50 mV of rails
2 (–IN A)	Inverting input A	High-impedance CMOS node (1 TΩ); accepts common-mode voltage down to V_CC– –0.1 V
3 (+IN A)	Non-inverting input A	Matches –IN A; enables precision differential sensing with 10 pA input bias current
4 (V_CC–)	Negative supply	Ground reference for single-supply operation; supports true 0 V input capability
5 (+IN B)	Non-inverting input B	Independent channel; identical specs to Channel A; enables dual-path signal conditioning
6 (–IN B)	Inverting input B	Electrically isolated from Channel A; allows independent feedback networks per channel
7 (OUT B)	Amplifier B output	Full rail-to-rail drive; shares same thermal and supply characteristics as OUT A
8 (V_CC+)	Positive supply	Accepts up to 16 V; internal protection limits absolute max to 18 V

Key Features

Feature	Design Value
Rail-to-rail input and output	Enables full dynamic range utilization in single-supply systems (e.g., 0–12 V ADC interface)
Decompensated unity-gain-stable architecture	Guarantees ≥60° phase margin only when configured for gain ≥+2 or ≤–1-reduces external component count
Low 1/f noise (8.58 µV_PP, 0.1–10 Hz)	Supports precision DC-coupled sensor amplification (e.g., strain gauge, thermopile) without chopper overhead
High ESD tolerance (4 kV HBM)	Eliminates need for external TVS diodes in exposed automotive harness interfaces
Automotive qualification (AEC-Q100 Grade 1)	Validated for under-hood deployment with guaranteed parametric stability over lifetime at 125 °C junction

Applications

Active Filter Design

I/V Conversion for Precision ADCs

Use Scenario: 4th-order Butterworth anti-aliasing filter preceding a 12-bit SAR ADC in motor current sensing.

IC Role / Device Role / Timing Role: Dual-channel op amp implements two 2-pole stages; Channel A handles high-frequency roll-off, Channel B provides buffer isolation.

Use Value: 16 MHz GBW ensures <0.05 dB passband ripple up to 100 kHz; rail-to-rail output drives ADC reference directly without level-shifting.

Use Scenario: Converting photodiode current (10 nA–10 µA) into voltage for optical smoke detector analog front-end.

IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) with 10 MΩ feedback resistor; low input bias current prevents signal loss at low photocurrents.

Use Value: 10 pA typical I_IB yields <0.1 mV offset error; 27 V/µs slew rate supports fast smoke event response (<100 µs rise time).

Automotive High-Side Current Sensing

Communications Line Driver

Use Scenario: Monitoring battery pack charge/discharge current in 12 V EV auxiliary systems using shunt-based measurement.

IC Role / Device Role / Timing Role: Difference amplifier configuration (gain = +20) referenced to high-side shunt; rejects common-mode voltage up to 16 V.

Use Value: 73 dB CMRR at 16 V ensures <±1% gain error despite 12 V common-mode swing; extended temp range supports under-dash mounting.

Use Scenario: Driving 50 Ω coaxial cable in industrial fieldbus node with 2 V_PP differential signaling.

IC Role / Device Role / Timing Role: Single-ended to differential converter with gain = –1; one TSX9292 channel generates inverted output, second buffers non-inverted.

Use Value: 0.0003 % THD+N preserves signal integrity over 100 kHz bandwidth; rail-to-rail swing maximizes SNR on 5 V supply.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TSX9292IYDT	Same die, DFN8 2×2 mm package (vs. MiniSO8); 57 °C/W R_thJA vs. 190 °C/W	Better thermal performance in space-constrained PCBs; requires rework for solder paste volume control	Select for compact automotive ECUs where junction temperature must stay <115 °C at 125 °C ambient
TSX9292IST	SO8 package (5.0×4.0 mm); higher R_thJA (125 °C/W); identical electrical specs	Easier hand-soldering and legacy board compatibility; lower power density than MiniSO8	Select for industrial control panels with manual assembly or thermal derating margin >20 °C

Compared with TSX9292IDT, the IYDT variant offers superior thermal dissipation in miniaturized layouts, while the IST version prioritizes manufacturability and legacy footprint reuse-both retain identical AC performance and automotive qualification.

Availability

TSX9292IDT is available at Aetrix Electronics and suitable for automotive sensor signal conditioning, industrial active filtering, and communications line driver applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TSX9292IDT 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 TSX92 series targets high-speed, rail-to-rail op amp applications demanding unity-gain stability, low distortion, and automotive reliability-specifically engineered for precision signal acquisition in harsh environments.

FAQ

Can TSX9292IDT be used in unity-gain buffer configuration?

No-TSX9292IDT is decompensated and unstable at unity gain. It requires minimum closed-loop gain of +2 (non-inverting) or –1 (inverting) to maintain ≥60° phase margin. For unity-gain applications, ST recommends the TSX9291 (single-channel) or TSX9294 (quad) variants, which are internally compensated for G = +1 stability.

What is the maximum capacitive load the TSX9292IDT can drive without oscillation?

At gain ≥+2, TSX9292IDT drives up to 100 pF with <10% overshoot and no sustained ringing, per Figure 22. With a 12 pF feedback capacitor (C_f), it stabilizes 200 pF loads. Exceeding these values requires isolation resistors or active compensation per Section 4.7 of the datasheet.

Does TSX9292IDT support true single-supply operation from 0 V to 5 V?

Yes-its rail-to-rail input accepts common-mode voltages from V_CC– –0.1 V (i.e., –0.1 V when V_CC– = 0 V) to V_CC+ +0.1 V, and output swings within 50 mV of both rails. At 5 V supply, it fully resolves 0–5 V sensor signals without level-shifting circuitry.

How does TSX9292IDT's long-term input offset drift impact precision designs?

After 1000 hours at 125 °C, typical long-term V_IO drift is 2.26 mV (Table 6). In a 12-bit system with 5 V full-scale, this equates to ~1.8 LSB error-acceptable for most automotive sensor interfaces but warrants calibration in metrology-grade instruments.

TSX9292IDT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Amplifier Type:: CMOS

Number of Circuits:: 2

Output Type:: Rail-to-Rail

Slew Rate:: 27V/µs

Gain Bandwidth Product:: 16 MHz

-3db Bandwidth:: -

Current - Input Bias:: 10 pA

Voltage - Input Offset:: 4 mV

Current - Supply:: 2.8mA (x2 Channels)

Current - Output / Channel:: 74 mA

Voltage - Supply Span (Min):: 4 V

Voltage - Supply Span (Max):: 16 V

Operating Temperature:: -40°C ~ 125°C

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC

TSX9292IDT FAQ

1.How can I place an order for TSX9292IDT through Aetrix?

Please submit a Request for Quotation (RFQ) for TSX9292IDT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for TSX9292IDT reliable?

The price and inventory of TSX9292IDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSX9292IDT is usually 5 days.

3.What payment methods are accepted for TSX9292IDT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSX9292IDT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TSX9292IDT?

TSX9292IDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TSX9292IDT order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for TSX9292IDT?

For technical support, including TSX9292IDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSX9292IDT requirements.

6.How does Aetrix verify that TSX9292IDT is sourced from the original manufacturer or authorized distributors?

All TSX9292IDT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TSX9292IDT meets industry standards.

7.What is the process for return or replacement of TSX9292IDT?

All TSX9292IDT units undergo pre-shipment inspection (PSI). If there is an issue with TSX9292IDT, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The TSX9292IDT part is unused and in its original packaging.

Return procedure for TSX9292IDT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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