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STMicroelectronics TSX7192IYST
- Part No.:
- TSX7192IYST
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TSX7192IYST.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8MINISO
- Quantity:
- Payment:
- Shipping:
Inventory:3,093
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Product details
Overview
TSX7192IYST from STMicroelectronics is a dual, decompensated, rail-to-rail input/output operational amplifier optimized for precision, low-power, and high-voltage operation (2.7–16 V). It delivers 9 MHz gain bandwidth, 200 µV max input offset voltage at 25 °C, 850 µA max supply current per amplifier, and operates across –40 °C to +125 °C - enabling use in automotive current sensing and battery-powered instrumentation.
For engineers reviewing the TSX7192IYST datasheet, TSX7192IYST pinout, TSX7192IYST application, or TSX7192IYST equivalent, key selection criteria include its minimum gain ≥10 stability requirement, rail-to-rail I/O capability at low supply voltages, 4 kV HBM ESD rating, and guaranteed performance over extended temperature and supply voltage ranges.
Technical Context
The TSX7192IYST employs a decompensated two-stage CMOS architecture requiring closed-loop gain ≥10 for phase margin ≥42° and stable operation. Its rail-to-rail input stage uses complementary differential pairs to achieve common-mode range from VCC– –0.1 V to VCC+ +0.1 V, while the rail-to-rail output stage delivers <40 mV saturation voltage into 10 kΩ loads at both rails.
It features ultra-low input bias current (≤50 pA), 1 TΩ input resistance, and 12.5 pF input capacitance - supporting high-impedance sensor interfaces without significant loading. The device's 2.5 µV/°C max input offset drift and 100 dB min CMRR at 16 V supply ensure accuracy in precision signal conditioning across automotive temperature extremes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 9 MHz - enables stable closed-loop operation up to 10× gain with sufficient phase margin for precision filtering and amplification. |
| Input Offset Voltage | 200 µV max at 25 °C - ensures ≤0.5 mV error in 2.5 V full-scale measurements without trimming. |
| Supply Current per Amp | 850 µA max - supports multi-channel, battery-operated systems with sub-2 mA total quiescent draw. |
| Rail-to-Rail I/O | VIN: –0.1 V to VCC+0.1 V; VOUT: within 40 mV of rails - maximizes dynamic range at 2.7 V supply and avoids clipping in single-supply sensor front-ends. |
| Operating Voltage Range | 2.7 V to 16 V - allows direct interface with Li-ion batteries (3.0–4.2 V), 12 V automotive rails, and industrial 15 V supplies without regulation. |
| ESD Tolerance | 4 kV HBM - meets automotive system-level robustness requirements without external protection circuitry. |
| Temperature Range | –40 °C to +125 °C - qualified for under-hood and engine-control module deployment per AEC-Q100. |
Pinout & Package
TSX7192IYST is housed in an SO8 (Small Outline 8-pin) package with standard dual op-amp pinout and surface-mount footprint. The package complies with JEDEC MS-012 and RoHS/REACH requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Delivers rail-to-rail voltage swing; requires gain ≥10 for stability - not suitable for unity-gain buffer configuration. |
| 2 (–IN A) | Inverting input A | High-impedance node (1 TΩ); accepts signals from –0.1 V to VCC+0.1 V - enables true single-supply operation with ground-referenced sensors. |
| 3 (+IN A) | Non-inverting input A | Matches –IN A in bias current (≤50 pA) and offset - critical for low-drift instrumentation amplifier topologies. |
| 4 (VCC–) | Negative supply | Ground reference for single-supply operation; must be connected to system GND or negative rail - no internal charge pump. |
| 5 (+IN B) | Non-inverting input B | Electrically identical to Pin 3; supports independent dual-channel signal conditioning with matched thermal tracking. |
| 6 (–IN B) | Inverting input B | Same CMRR (≥94 dB at 16 V) and input capacitance (12.5 pF) as Pin 2 - ensures channel-to-channel matching in differential receivers. |
| 7 (OUT B) | Amplifier B output | Functionally identical to Pin 1; allows dual-path signal processing without inter-channel crosstalk (typical PSRR >100 dB). |
| 8 (VCC+) | Positive supply | Accepts 2.7–16 V; supplies both amplifiers - decoupling capacitor (100 nF) required within 5 mm for stability at full GBP. |
Key Features
| Feature | Design Value |
|---|---|
| Low Input Offset Drift | 2.5 µV/°C max - reduces calibration frequency in automotive temperature-cycling applications and maintains <1 LSB error in 12-bit ADC front-ends. |
| High Common-Mode Rejection | 107 dB max CMRR at 16 V - rejects power supply ripple and noise in high-side current sensing where VCM approaches VCC. |
| Stable at High Gain | Phase margin ≥42° at G = 10 - eliminates need for external compensation in precision gain stages used in strain gauge amplifiers. |
| Low Noise Performance | 22 nV/√Hz at 1 kHz - preserves SNR in low-level sensor outputs (e.g., thermopiles, piezoresistive elements) without additional filtering. |
| Automotive Qualified | AEC-Q100 Grade 1 compliant - validated for reliability in automotive control units including body electronics and ADAS subsystems. |
Applications
| Battery-Powered Instrumentation | High-Impedance Sensor Interface |
|---|---|
|
Use Scenario: Portable multimeter front-end measuring microvolt-level thermocouple outputs with 3.3 V Li-ion supply. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier providing 100× gain and rail-to-rail output swing into 12-bit SAR ADC. Use Value: 200 µV max VIO and 2.5 µV/°C drift enable ±0.5 °C accuracy over –20 °C to +60 °C without recalibration. |
Use Scenario: pH probe signal conditioning in handheld water quality analyzer using glass electrode (100 MΩ–1 GΩ source impedance). IC Role / Device Role / Timing Role: Unity-gain buffer with 1 TΩ input resistance and 50 pA max IIB to prevent electrode polarization. Use Value: Rail-to-rail input extends usable common-mode range to 0–3.3 V, capturing full pH scale (0–14) without level-shifting circuitry. |
| High-Side Current Sensing | Automotive Engine Control Unit |
|
Use Scenario: Monitoring motor phase current in 12 V BLDC drive using shunt resistor placed between load and VCC. IC Role / Device Role / Timing Role: Difference amplifier with matched resistors rejecting common-mode voltage up to 12 V while amplifying mV-level shunt drop. Use Value: 107 dB CMRR at 12 V supply ensures <1% error in 100 mV sense signal despite 12 V CM transients on shunt terminals. |
Use Scenario: Oxygen sensor (lambda probe) signal conditioning in exhaust gas recirculation (EGR) control loop. IC Role / Device Role / Timing Role: Low-drift, high-temperature-stable amplifier driving analog input of MCU ADC in under-hood ECU. Use Value: Guaranteed operation at +125 °C and 4 kV HBM rating eliminate need for external transient suppressors in harsh automotive environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSX712IYST | Lower GBP (1.5 MHz), same 200 µV VIO, but stable at G ≥ 1 - supports unity-gain buffers. | Used where bandwidth <2 MHz suffices and rail-to-rail I/O is needed without minimum-gain constraint. | Select when stability at G = 1 is mandatory and 9 MHz bandwidth is unnecessary. |
| TSX922IYDT | Higher GBP (10 MHz), higher supply current (1.8 mA), no rail-to-rail input - limited CM range. | Suitable for high-speed active filters but incompatible with ground-sensing configurations. | Choose only if speed >9 MHz is critical and input common-mode range can be constrained above GND. |
Compared with TSX7192IYST, TSX712IYST trades bandwidth for unity-gain stability and lower cost, while TSX922IYDT sacrifices rail-to-rail input and power efficiency for raw speed - making TSX7192IYST the optimal balance for precision, wide-supply, automotive-grade dual op-amp needs.
Availability
TSX7192IYST is available at Aetrix Electronics and suitable for battery-powered instrumentation, automotive engine control units, and high-impedance sensor interface designs requiring stable component supply across extended temperature and voltage ranges.
Supply support for TSX7192IYST 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, mixed-signal, power, and microcontroller solutions for industrial, automotive, and consumer markets.
The TSX7192 belongs to ST's precision rail-to-rail op amp product line, engineered specifically for automotive-qualified, low-power, high-accuracy signal conditioning in harsh environments - emphasizing offset stability, ESD robustness, and wide supply flexibility.
FAQ
Can TSX7192IYST be used in unity-gain configuration?
No. TSX7192IYST is decompensated and requires minimum closed-loop gain of 10 for stability, as confirmed by phase margin ≥42° only at G ≥ 10. Attempting unity-gain operation causes oscillation due to insufficient phase margin. For G = 1 applications, ST recommends TSX712IYST or TSX632IYST instead.
What is the maximum capacitive load the TSX7192IYST can drive without instability?
TSX7192IYST remains stable with ≤100 pF capacitive load when configured at G ≥ 10 and driving a 10 kΩ resistive load, per Figure 24 in the datasheet. Driving >100 pF requires isolation resistor (≥100 Ω) in series with the output to maintain phase margin - critical for driving ADC input filters or long PCB traces.
Does TSX7192IYST support true single-supply operation down to 2.7 V?
Yes. TSX7192IYST supports rail-to-rail input from VCC– –0.1 V to VCC+ +0.1 V and rail-to-rail output within 40 mV of both rails at 2.7 V supply, enabling full dynamic range utilization in single-supply systems like portable medical devices and IoT sensors without level-shifting circuitry.
How does the 4 kV HBM ESD rating impact board-level design?
The 4 kV HBM rating means TSX7192IYST withstands typical handling and assembly electrostatic discharges without external protection diodes - reducing BOM count and PCB area. However, system-level transients (e.g., ISO 7637-2 pulses) still require TVS diodes at connectors; the 4 kV rating applies only to human-body model events during manufacturing.
TSX7192IYST 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
TSX7192IYST FAQ
1.How can I place an order for TSX7192IYST through Aetrix?
Please submit a Request for Quotation (RFQ) for TSX7192IYST 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 TSX7192IYST reliable?
The price and inventory of TSX7192IYST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSX7192IYST is usually 5 days.
3.What payment methods are accepted for TSX7192IYST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSX7192IYST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSX7192IYST?
TSX7192IYST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSX7192IYST 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 TSX7192IYST?
For technical support, including TSX7192IYST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSX7192IYST requirements.
6.How does Aetrix verify that TSX7192IYST is sourced from the original manufacturer or authorized distributors?
All TSX7192IYST 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 TSX7192IYST meets industry standards.
7.What is the process for return or replacement of TSX7192IYST?
All TSX7192IYST units undergo pre-shipment inspection (PSI). If there is an issue with TSX7192IYST, 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 TSX7192IYST part is unused and in its original packaging.
Return procedure for TSX7192IYST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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