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STMicroelectronics TSX7192IST
- Part No.:
- TSX7192IST
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TSX7192IST.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8MINISO
- Quantity:
- Payment:
- Shipping:
Inventory:2,400
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Product details
Overview
TSX7192IST from STMicroelectronics is a dual, decompensated, rail-to-rail input/output operational amplifier optimized for precision signal conditioning in automotive and industrial systems. It delivers 200 µV max input offset voltage, 9 MHz gain bandwidth product, 2.7–16 V supply range, and operates across –40 °C to +125 °C - enabling high-accuracy current sensing and sensor interface circuits at low supply voltages.
For engineers reviewing the TSX7192IST datasheet, TSX7192IST pinout, TSX7192IST application, or TSX7192IST equivalent, key selection criteria include its minimum gain ≥10 stability requirement, rail-to-rail I/O capability at 2.7 V, 50 pA max input bias current, and AEC-Q100 qualification for under-hood automotive use.
Technical Context
The TSX7192IST is a decompensated voltage-feedback op amp requiring closed-loop gain ≥10 for stability, with phase margin of 42°–51° depending on supply voltage. Its rail-to-rail input stage uses complementary input pairs to extend common-mode range to (VCC– – 0.1 V) to (VCC+ + 0.1 V), while the output stage achieves <40 mV saturation voltage into 10 kΩ loads.
It features MOSFET input architecture delivering 1 TΩ input resistance and 50 pA max input bias current, enabling high-impedance sensor interfacing. Input offset voltage drift is specified at 2.5 µV/°C max, and long-term drift reaches 500 µV after 1000 h at 125 °C - critical for automotive longevity requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input offset voltage | 200 µV max at 25 °C - enables sub-0.1% error in 12-bit precision current sensing at 2.5 V full-scale |
| Gain bandwidth product | 9 MHz typ. at 16 V - supports stable 10× gain amplification up to ~900 kHz with adequate phase margin |
| Supply voltage range | 2.7 V to 16 V - allows direct operation from single-cell LiFePO₄ (3.2 V) or 12 V automotive battery rails |
| Input bias current | 50 pA max - preserves signal integrity when interfacing >100 MΩ resistive sensors or piezoelectric elements |
| Common-mode rejection | 98 dB min. at 10 V supply - rejects >99.9% of common-mode noise in differential instrumentation amplifier front-ends |
| ESD tolerance | 4 kV HBM - meets automotive board-level ESD robustness requirements without external protection diodes |
| Operating temperature | –40 °C to +125 °C - qualified per AEC-Q100 Grade 0 for engine control, battery management, and ADAS subsystems |
Pinout & Package
TSX7192IST is housed in an SO-8 (Small Outline) package with standard 1.27 mm pitch, 5.0 mm × 4.0 mm body, and exposed pad for thermal enhancement. Pin numbering follows JEDEC MS-012AC, with pins 1–4 on left side and 5–8 on right side (top view).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input (Amplifier A) | High-impedance node accepting differential signal; requires current limiting if driven beyond rails by >0.5 V |
| 2 | Non-inverting input (Amplifier A) | Accepts reference or sensor signal; common-mode range extends 0.1 V beyond supply rails |
| 3 | Output (Amplifier A) | Rail-to-rail capable: drives within 40 mV of VCC– or VCC+ into 10 kΩ load |
| 4 | VCC– (Ground / Negative supply) | Reference return for both amplifiers; must be low-impedance to minimize PSRR degradation |
| 5 | VCC+ (Positive supply) | Single-supply or split-supply connection; supports 2.7–16 V with <1000 µA total quiescent current |
| 6 | Output (Amplifier B) | Independent output stage; shares same supply and thermal characteristics as Channel A |
| 7 | Non-inverting input (Amplifier B) | Matches Channel A specs; enables dual-channel instrumentation or active filtering topologies |
| 8 | Inverting input (Amplifier B) | Symmetric with Pin 1; supports matched dual feedback networks for common-mode rejection |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in 2.7 V systems - e.g., 0–2.7 V sensor output digitized directly by 12-bit SAR ADC |
| Low input offset voltage drift | 2.5 µV/°C max ensures <1.25 mV total offset shift over –40 °C to +125 °C - critical for uncalibrated automotive temperature monitoring |
| Decompensated architecture | Guarantees stability only at gain ≥10, allowing higher GBP than unity-gain-stable equivalents - ideal for fixed-gain signal conditioning stages |
| Automotive qualification | AEC-Q100 Grade 0 certified with 150 °C max junction temperature rating - validated for under-hood placement in powertrain ECUs |
| High CMRR and PSRR | 98 dB CMRR and 131 dB PSRR at DC reject battery ripple and ground bounce in noisy 12 V vehicle electrical systems |
Applications
| Battery-Powered Instrumentation | High-Impedance Sensor Interface |
|---|---|
Use Scenario: Portable gas analyzer using electrochemical cell with nA-level output current. IC Role / Device Role / Timing Role: Transimpedance amplifier converting 10 nA–1 µA sensor current to 0.1–100 mV voltage with minimal offset-induced baseline drift. Use Value: 50 pA input bias current prevents loading of high-impedance cell; 200 µV offset avoids zero-point calibration at every power cycle. |
Use Scenario: Strain gauge bridge in industrial weigh scale operating from 3.3 V LDO. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with 100× gain, rejecting common-mode noise from 50/60 Hz mains coupling. Use Value: 98 dB CMRR suppresses >99% of bridge excitation noise; rail-to-rail I/O captures full 0–3.3 V differential swing. |
| Current Sensing (High/Low Side) | Active Filtering |
Use Scenario: Bidirectional motor current monitoring in 12 V automotive seat control module. IC Role / Device Role / Timing Role: High-side current sense amplifier with 20× gain, referenced to 12 V rail and driving isolated ADC input. Use Value: Rail-to-rail input accepts common-mode voltage up to 12.1 V; 4 kV HBM withstands load-dump transients without protection circuitry. |
Use Scenario: Anti-aliasing filter for 100 kSPS data acquisition in engine knock detection system. IC Role / Device Role / Timing Role: 2nd-order Sallen-Key low-pass filter with 50 kHz cutoff, implemented using dual amplifier topology. Use Value: 9 MHz GBP ensures <0.1 dB passband flatness to 50 kHz; matched dual channels enable identical filter response for multi-cylinder analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision dual op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSX712IDT | Lower GBP (1.5 MHz), same 200 µV VOS, unity-gain stable | Supports gain = 1 configurations (e.g., voltage followers) but trades bandwidth for stability | Select when gain flexibility <10 is required and 9 MHz bandwidth is unnecessary |
| TSX922IYDT | Higher GBP (10 MHz), 1.5 mV VOS max, rail-to-rail I/O, unity-gain stable | Accepts wider VOS tolerance but offers broader bandwidth and no minimum-gain constraint | Select when system requires unity-gain stability and can tolerate higher offset in exchange for speed |
Compared with TSX7192IST, TSX712IDT sacrifices bandwidth for unconditional stability at any gain, while TSX922IYDT provides higher speed and unity-gain operation at the cost of 7.5× higher input offset - making TSX7192IST optimal for fixed-gain, high-precision, automotive-grade signal chains.
Availability
TSX7192IST is available at Aetrix Electronics and suitable for battery-powered instrumentation, automotive current sensing, and high-impedance sensor interface applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TSX7192IST 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 TSX7192IST belongs to ST's precision rail-to-rail op amp product line, engineered specifically for high-accuracy signal conditioning in harsh environments - including automotive powertrain, battery management, and industrial process control.
FAQ
Can TSX7192IST operate from a single 3.3 V supply?
Yes. TSX7192IST is fully specified down to 2.7 V supply and supports rail-to-rail input/output operation at 3.3 V. Its input common-mode range extends from –0.1 V to 3.4 V, and output swings within 40 mV of both rails into 10 kΩ - enabling full utilization of 3.3 V ADC references without level-shifting.
Why does TSX7192IST require minimum gain ≥10?
TSX7192IST is decompensated to achieve 9 MHz GBP in an SO-8 package. Internal compensation is reduced to boost bandwidth, making it unstable below gain 10. Phase margin drops below 40° at G = 1, risking oscillation. Gain-setting resistors must ensure closed-loop gain ≥10 - verified via stability testing with 100 pF capacitive load.
Is TSX7192IST pin-compatible with TSX7191 or TSX712?
No. TSX7192IST (dual, SO-8) is not pin-compatible with TSX7191 (single, SO-8) or TSX712 (dual, SO-8). Though all share SO-8 packaging, pin functions differ: TSX7191 has only one amplifier set (Pins 1–3, 5–8), while TSX712 uses different pin assignments for power and inputs. PCB layout must be redesigned for each part.
What is the maximum capacitive load TSX7192IST can drive stably?
TSX7192IST remains stable driving ≤100 pF capacitive load with gain ≥10 and 10 kΩ series resistance. Figure 24 in the datasheet shows overshoot remains <10% up to 100 pF. For >100 pF loads (e.g., long cables), a 10–100 Ω isolation resistor between output and capacitance is mandatory to maintain phase margin above 42°.
TSX7192IST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2.4V/µs
- Gain Bandwidth Product:
- 8.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 660µA (x2 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.7 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-MiniSO
TSX7192IST FAQ
1.How can I place an order for TSX7192IST through Aetrix?
Please submit a Request for Quotation (RFQ) for TSX7192IST 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 TSX7192IST reliable?
The price and inventory of TSX7192IST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSX7192IST is usually 5 days.
3.What payment methods are accepted for TSX7192IST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSX7192IST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSX7192IST?
TSX7192IST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSX7192IST 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 TSX7192IST?
For technical support, including TSX7192IST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSX7192IST requirements.
6.How does Aetrix verify that TSX7192IST is sourced from the original manufacturer or authorized distributors?
All TSX7192IST 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 TSX7192IST meets industry standards.
7.What is the process for return or replacement of TSX7192IST?
All TSX7192IST units undergo pre-shipment inspection (PSI). If there is an issue with TSX7192IST, 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 TSX7192IST part is unused and in its original packaging.
Return procedure for TSX7192IST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSX7192IST Tags
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LM358DT
STMicroelectronics
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