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STMicroelectronics TSZ181HYLT
- Part No.:
- TSZ181HYLT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TSZ181HYLT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,993
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Product details
Overview
TSZ181HYLT from STMicroelectronics is a single-channel, AEC-Q100 qualified zero-drift operational amplifier in SOT23-5 package, delivering 25 µV max offset voltage at 25 °C, 44 µV over –40 to +150 °C, and 3 MHz gain bandwidth product. It operates rail-to-rail on 2.2–5.5 V supply with 1 mA max ICC at 5 V, enabling high-accuracy current sensing and sensor signal conditioning in automotive powertrain and battery management systems.
For engineers reviewing the TSZ181HYLT datasheet, TSZ181HYLT pinout, TSZ181HYLT application, or TSZ181HYLT equivalent, key selection criteria include its ultra-low offset drift (0.15 µV/°C), extended temperature operation (–40 to +150 °C), rail-to-rail I/O capability, and AEC-Q100 qualification for under-hood automotive use.
Technical Context
The TSZ181HYLT employs auto-zeroing architecture to achieve near-zero input offset voltage drift versus temperature and time. Its input stage supports common-mode voltages from (VCC–) –0.1 V to (VCC+) +0.1 V, and output swings within 13–70 mV of rails across temperature and supply conditions.
It delivers 3 MHz GBP with 4.7 V/µs slew rate (typ. at 5 V), 126 dB CMRR (min. at 5 V), and 123 dB SVRR - all specified over full automotive temperature range. EMI rejection ratio reaches 85 dB at 2.4 GHz, confirming robustness in noisy vehicle environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 25 µV max at 25 °C; enables <1 LSB error in 16-bit current-sense ADC interfaces without calibration. |
| Offset Drift | 0.15 µV/°C max; ensures stable gain accuracy across –40 to +150 °C without thermal compensation circuitry. |
| Supply Range | 2.2–5.5 V; compatible with 3.3 V microcontrollers and 5 V analog front-ends in automotive ECUs. |
| Gain Bandwidth | 3 MHz at 5 V; supports fast transient response in closed-loop battery cell monitoring and motor phase current feedback. |
| Quiescent Current | 1 mA max at 5 V; allows low-power operation in always-on vehicle subsystems while maintaining precision. |
| Common-Mode Rejection | 108 dB min at 5 V; rejects noise from high-side shunt measurements in 48 V mild-hybrid systems. |
| EMI Rejection | 85 dB at 2.4 GHz; mitigates RF interference from infotainment and cellular modules near sensor nodes. |
Pinout & Package
SOT23-5 package: 5-pin surface-mount micropackage with exposed pad option (not thermally enhanced per datasheet), footprint-compatible with standard SOT23-5 PCB land patterns and reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN–) | Inverting input | High-impedance node for differential sensing; supports common-mode up to VCC+0.1 V. |
| 2 (IN+) | Non-inverting input | Zero-drift auto-zero sampling path input; bias current ≤400 pA over full temperature range. |
| 3 (V–) | Negative supply | Ground-referenced or negative rail connection; supports single-supply operation down to 2.2 V. |
| 4 (OUT) | Amplifier output | Rail-to-rail capable; drives ≥20 mA sink/source at 5 V, enabling direct interface to SAR ADC reference buffers. |
| 5 (V+) | Positive supply | Accepts 2.2–5.5 V; internal ESD protection rated to 4 kV HBM ensures reliability in assembly and field operation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 0 qualification | Validated for operation from –40 to +150 °C junction temperature, meeting automotive powertrain and safety-critical requirements. |
| Zero-drift auto-zero architecture | Eliminates 1/f noise and long-term offset drift, enabling stable DC-coupled amplification in battery voltage monitoring over 15-year vehicle life. |
| Rail-to-rail input/output | Maximizes dynamic range in low-voltage systems (e.g., 2.2 V supply), preserving signal fidelity from shunt resistors near ground or rail. |
| Ultra-low input bias current | ≤400 pA over temperature; prevents voltage error in high-impedance sensor interfaces (e.g., thermopile or piezoresistive pressure sensors). |
| High EMI immunity | 85 dB rejection at 2.4 GHz on IN– pin; suppresses coupling from Bluetooth/WiFi antennas in telematics and ADAS modules. |
Applications
| Electric Power Steering (EPS) Torque Sensing | 48 V Mild-Hybrid Battery Cell Monitoring |
|---|---|
|
Use Scenario: Amplifying millivolt-level Wheatstone bridge output from torque sensor in EPS column module. IC Role / Device Role / Timing Role: Precision DC-coupled signal conditioner with <25 µV offset, rejecting common-mode noise from motor PWM switching. Use Value: Enables sub-0.1 N·m torque resolution over full temperature range without factory calibration or thermal lookup tables. |
Use Scenario: Measuring individual cell voltage in 13S Li-ion battery pack using high-side shunt configuration. IC Role / Device Role / Timing Role: High-CMRR buffer for 16-bit delta-sigma ADC input, operating at 48 V system potential with 150 °C ambient tolerance. Use Value: Maintains ±0.5 mV measurement accuracy across –40 to +105 °C board temperature, critical for state-of-charge estimation. |
| Engine Coolant Temperature (ECT) Signal Conditioning | Brake-by-Wire Pressure Transducer Interface |
|
Use Scenario: Linearizing and amplifying output of NTC thermistor in engine bay, exposed to under-hood thermal cycling. IC Role / Device Role / Timing Role: Low-drift, rail-to-rail op-amp in constant-current excitation circuit driving ratiometric ADC reference path. Use Value: Reduces temperature measurement error to ±0.3 °C over –40 to +150 °C, eliminating need for multi-point calibration. |
Use Scenario: Conditioning piezoresistive bridge output from brake master cylinder pressure sensor in x-by-wire system. IC Role / Device Role / Timing Role: AEC-Q100 qualified signal conditioner with 85 dB EMI rejection, immune to CAN FD bus noise and solenoid switching transients. Use Value: Ensures functional safety compliance (ISO 26262 ASIL-B) by preventing false pressure readings during EMI stress events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar zero-drift operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX44265ASA+ | Higher offset drift (0.25 µV/°C), wider supply (2.7–36 V), no AEC-Q100 qualification. | Targeted at industrial process control, not automotive under-hood deployment. | Select only if extended voltage range outweighs lack of automotive qualification and higher drift. |
| OPA333AIDBVR | Lower bandwidth (350 kHz), narrower temp range (–40 to +125 °C), same 17 µV max offset at 25 °C. | Approved for cabin electronics but not powertrain; insufficient for 150 °C engine bay use. | Use only in non-critical, lower-temperature automotive zones where 3 MHz bandwidth is unnecessary. |
Compared with MAX44265ASA+ and OPA333AIDBVR, TSZ181HYLT uniquely combines AEC-Q100 Grade 0 qualification, 3 MHz bandwidth, and 0.15 µV/°C drift - making it the sole choice for high-bandwidth, high-temperature automotive sensor interfaces requiring long-term DC stability.
Availability
TSZ181HYLT is available at Aetrix Electronics and suitable for electric power steering, 48 V battery management, and brake-by-wire systems requiring stable component supply across extended temperature and automotive lifecycle demands.
Supply support for TSZ181HYLT 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 silicon solutions for automotive, industrial, and consumer markets since 1987.
The TSZ181H series belongs to ST's high-precision automotive op-amp portfolio, engineered specifically for zero-drift, high-temperature signal conditioning in safety-critical vehicle subsystems.
FAQ
What is the maximum junction temperature rating for TSZ181HYLT?
The TSZ181HYLT has a maximum junction temperature of 160 °C, with guaranteed operation up to +150 °C ambient in the SOT23-5 package. Thermal resistance junction-to-ambient is 250 °C/W, so power dissipation must be limited to ≤2.4 mW at 150 °C ambient to stay within safe operating limits.
Does TSZ181HYLT support dual-supply operation?
Yes - TSZ181HYLT supports dual-supply operation with V+ and V– pins accepting symmetric or asymmetric rails, as long as total supply voltage remains between 2.2 V and 5.5 V and common-mode input stays within (V–) –0.1 V to (V+) +0.1 V. This enables use in ±2.75 V configurations.
How does the EMI rejection ratio perform at 900 MHz?
At 900 MHz, the TSZ181HYLT achieves 52 dB EMIRR when RF injection occurs on the IN– pin, as measured per DS13229 Rev 2. This value is consistent across 400 MHz and 900 MHz bands, then improves to 72 dB at 1.8 GHz and 85 dB at 2.4 GHz.
Is the SOT23-5 package lead-free and RoHS compliant?
Yes - TSZ181HYLT uses ST's ECOPACK2-compliant SOT23-5 package, certified lead-free, halogen-free, and RoHS-compliant per EU Directive 2011/65/EU, with matte tin terminal finish and JEDEC-standard reflow profile compatibility.
TSZ181HYLT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 4.7V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 30 pA
- Voltage - Input Offset:
- 25 µV
- Current - Supply:
- 800µA
- Current - Output / Channel:
- 29 mA
- Voltage - Supply Span (Min):
- 2.2 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TSZ181HYLT FAQ
1.How can I place an order for TSZ181HYLT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSZ181HYLT 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 TSZ181HYLT reliable?
The price and inventory of TSZ181HYLT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSZ181HYLT is usually 5 days.
3.What payment methods are accepted for TSZ181HYLT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSZ181HYLT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSZ181HYLT?
TSZ181HYLT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSZ181HYLT 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 TSZ181HYLT?
For technical support, including TSZ181HYLT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSZ181HYLT requirements.
6.How does Aetrix verify that TSZ181HYLT is sourced from the original manufacturer or authorized distributors?
All TSZ181HYLT 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 TSZ181HYLT meets industry standards.
7.What is the process for return or replacement of TSZ181HYLT?
All TSZ181HYLT units undergo pre-shipment inspection (PSI). If there is an issue with TSZ181HYLT, 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 TSZ181HYLT part is unused and in its original packaging.
Return procedure for TSZ181HYLT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSZ181HYLT Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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Texas Instruments
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Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
Texas Instruments
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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Texas Instruments
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Texas Instruments
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LM358P
Texas Instruments
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