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STMicroelectronics TSX922IDT
- Part No.:
- TSX922IDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TSX922IDT.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,213
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Product details
Overview
TSX922IDT from STMicroelectronics is a dual rail-to-rail input/output CMOS operational amplifier optimized for high-speed, low-distortion signal conditioning in automotive and industrial applications. 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 precision active filtering and I/V conversion for ADC front-ends operating from 4 V to 16 V supply.
For engineers reviewing the TSX922IDT datasheet, TSX922IDT pinout, TSX922IDT application, or TSX922IDT equivalent, this device is selected for demanding analog signal chains requiring wide supply range, extended temperature operation (–40 °C to 125 °C), ESD-hardened performance (4 kV HBM), and stable unity-gain operation without external compensation.
Technical Context
The TSX922IDT employs a CMOS input stage with 10 pA typical input bias current and 1 TΩ input resistance, supporting high-impedance sensor interfaces. Its fully rail-to-rail input common-mode range extends from (VCC−) − 0.1 V to (VCC+) + 0.1 V, and output swing reaches within 50 mV of both rails under 10 kΩ load at 16 V supply.
Internal compensation ensures unity-gain stability across temperature and supply voltage (4–16 V), with phase margin ≥55° and gain margin ≥5.9 dB at 16 V. The device exhibits low 1/f noise (8.58 µVpp, 0.1–10 Hz) and broadband noise of 16.5 nV/√Hz at 10 kHz, validated per DS9502 Rev 5.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 10 MHz typ at 16 V - supports stable closed-loop gain ≥10 up to 1 MHz with adequate phase margin. |
| Slew Rate (SR−) | 17.2 V/μs typ at 16 V - enables faithful reproduction of fast 100-mV step signals with <250 ns settling to 0.1%. |
| THD+N | 0.0003 % at 1 kHz, 4 Vrms, 16 V supply - meets high-fidelity audio and precision measurement requirements. |
| Input Offset Voltage | 4 mV max at 25 °C, 16 V - ensures ≤20 mV error in unity-gain buffer configurations over full temperature range. |
| ESD Rating | 4 kV HBM - provides robustness against handling and board-level electrostatic discharge in automotive assembly. |
| Supply Voltage Range | 4 V to 16 V - allows direct use with 5 V, 12 V, and 15 V industrial rails without LDO regulation. |
| Operating Temperature | –40 °C to 125 °C - qualified for under-hood automotive and factory-floor process control environments. |
Pinout & Package
TSX922IDT is housed in an SO8 (Small Outline 8-pin) package with standard dual op-amp pinout and surface-mount footprint. Thermal resistance RthJA is 125 °C/W, supporting continuous operation at full ambient temperature with moderate PCB copper area.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Inverting amplifier output - drives loads up to 50 mA sink/source, rail-to-rail swing. |
| 2 | IN1− | Inverting input - high-impedance node (1 TΩ) for feedback network connection. |
| 3 | IN1+ | Non-inverting input - accepts common-mode voltages from VCC− − 0.1 V to VCC+ + 0.1 V. |
| 4 | VCC− | Negative supply rail - referenced to system ground; supports single-supply operation when tied to GND. |
| 5 | IN2+ | Non-inverting input (Channel 2) - electrically isolated from Channel 1; crosstalk ≤ –120 dB at 100 kHz. |
| 6 | IN2− | Inverting input (Channel 2) - matched offset and bias characteristics to Channel 1. |
| 7 | OUT2 | Output (Channel 2) - independent drive capability; no shared internal nodes with OUT1. |
| 8 | VCC+ | Positive supply rail - accepts 4–16 V; PSRR ≥73 dB across 10 Hz–100 kHz. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input range extends 0.1 V beyond rails; output swings to within 50 mV of VCC+/VCC− at 16 V - maximizes dynamic range in single-supply systems. |
| Automotive qualification | AEC-Q100 Grade 1 compliant - validated for reliability in automotive powertrain and body electronics per DS9502 test plan. |
| Low input bias current | 10 pA typ - minimizes voltage error in high-Z photodiode or pH sensor interfaces without guard traces. |
| Unity-gain stable | No external compensation required - simplifies layout and reduces BOM count in gain-of-1 buffers and active filters. |
| Low THD+N | 0.0003 % at 1 kHz - enables high-resolution signal acquisition in test equipment and communications baseband stages. |
Applications
| Communications Baseband | I/V Conversion for ADC |
|---|---|
Use Scenario: Amplifying low-level RF detector outputs in LTE/5G small-cell transceivers before digitization. IC Role / Device Role / Timing Role: Dual-channel transimpedance and gain-stage amplifier driving SAR ADC inputs with minimal added noise. Use Value: 16.5 nV/√Hz input-referred noise and 10 MHz GBW preserve SNR across 0.1–5 MHz signal band. |
Use Scenario: Converting current-mode outputs from precision pressure sensors into buffered voltage signals for 16-bit ADCs. IC Role / Device Role / Timing Role: Rail-to-rail I/V converter and anti-aliasing filter driver with matched dual channels. Use Value: 4 mV max Vio and 2 μV/°C drift ensure <±0.1% gain error over –40 °C to 125 °C. |
| Active Filtering | Automotive Sensor Signal Conditioning |
Use Scenario: Implementing 4th-order Butterworth low-pass filters in portable test equipment with battery-powered 12 V rails. IC Role / Device Role / Timing Role: Dual op-amp building block for cascaded Sallen-Key stages with unity-gain stability. Use Value: Phase margin ≥55° and 17.2 V/μs slew rate support clean 1 MHz cutoff without peaking or ringing. |
Use Scenario: Conditioning signals from exhaust gas oxygen (EGO) and knock sensors in engine control units. IC Role / Device Role / Timing Role: High-temperature-stable amplifier for analog front-end signal chain with ESD protection. Use Value: 4 kV HBM rating and 125 °C operation eliminate field failures due to ESD or thermal stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual rail-to-rail operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV912IDT | Lower supply range (2.7–5.5 V), 8 MHz GBW, 1.1 mA ICC - optimized for low-voltage portable systems. | Not suitable for 12 V or 16 V industrial rails; lacks AEC-Q100 qualification. | Select when power budget is constrained and supply is ≤5.5 V; avoid for automotive or wide-supply designs. |
| LMV358IDR | Wider temp range (–40 °C to 125 °C), but only 1 MHz GBW, 1 V/μs slew rate, and 7 mV Vio. | Acceptable for cost-sensitive industrial controls where speed and distortion are secondary. | Choose for legacy compatibility or price-driven BOMs; not recommended for high-fidelity or high-speed signal paths. |
Compared with TSV912IDT and LMV358IDR, TSX922IDT uniquely combines 10 MHz bandwidth, automotive qualification, and 4–16 V operation - making it the only option among the three for high-speed, high-temp, wide-supply dual op-amp applications.
Availability
TSX922IDT is available at Aetrix Electronics and suitable for automotive sensor modules, industrial process controllers, and communications test equipment requiring stable component supply across extended temperature and voltage ranges.
Supply support for TSX922IDT 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, specializing in analog, microcontrollers, power management, and automotive-grade ICs.
The TSX92x family was designed specifically for high-speed, rail-to-rail signal conditioning in automotive and industrial analog front-ends - emphasizing precision, robustness, and wide-supply flexibility.
FAQ
Is TSX922IDT pin-compatible with other dual op-amps in SO8 packages?
Yes - TSX922IDT uses the industry-standard dual op-amp pinout (pin 1 = OUT1, pin 2 = IN1−, pin 3 = IN1+, pin 4 = VCC−, pin 5 = IN2+, pin 6 = IN2−, pin 7 = OUT2, pin 8 = VCC+), matching LM358, TL082, and TSV912 pin-for-pin. However, electrical behavior differs significantly in bandwidth, noise, and supply range.
Does TSX922IDT support single-supply operation?
Yes - TSX922IDT operates from 4 V to 16 V with rail-to-rail input and output, enabling true single-supply use when VCC− is connected to ground. Input common-mode range includes ground, and output swings to within 50 mV of GND at 16 V supply with 10 kΩ load.
What is the maximum capacitive load the TSX922IDT can drive without instability?
Per DS9502 Rev 5 Figure 24, TSX922IDT remains stable with ≥100 pF capacitive load in unity-gain configuration without feedback capacitor. With 120 pF load (Figure 21), phase margin stays >45° at 16 V, confirming robustness for driving ADC input capacitance or long PCB traces.
How does TSX922IDT perform in high-temperature automotive environments?
TSX922IDT is AEC-Q100 Grade 1 qualified (–40 °C to 125 °C) and characterized across temperature. At 125 °C and 16 V, GBP remains ≥9 MHz, Vio drift is ≤15 μV/°C, and PSRR stays ≥71 dB - ensuring consistent performance in under-hood ECUs without derating.
TSX922IDT 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:
- 17V/µs
- Gain Bandwidth Product:
- 10 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
TSX922IDT FAQ
1.How can I place an order for TSX922IDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSX922IDT 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 TSX922IDT reliable?
The price and inventory of TSX922IDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSX922IDT is usually 5 days.
3.What payment methods are accepted for TSX922IDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSX922IDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSX922IDT?
TSX922IDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSX922IDT 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 TSX922IDT?
For technical support, including TSX922IDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSX922IDT requirements.
6.How does Aetrix verify that TSX922IDT is sourced from the original manufacturer or authorized distributors?
All TSX922IDT 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 TSX922IDT meets industry standards.
7.What is the process for return or replacement of TSX922IDT?
All TSX922IDT units undergo pre-shipment inspection (PSI). If there is an issue with TSX922IDT, 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 TSX922IDT part is unused and in its original packaging.
Return procedure for TSX922IDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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