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STMicroelectronics TSV852IYST
- Part No.:
- TSV852IYST
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TSV852IYST.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8MINISO
- Quantity:
- Payment:
- Shipping:
Inventory:3,950
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Product details
Overview
TSV852IYST from STMicroelectronics is a dual-channel, rail-to-rail output operational amplifier with shutdown functionality, designed for precision signal conditioning in space-constrained automotive and industrial systems. It delivers 1.3 MHz gain bandwidth, 180 µA per channel supply current at 5 V, 0.8 mV max input offset voltage at 25 °C, and operates across –40 °C to +125 °C - enabling use in battery-powered sensor front-ends and engine control modules.
For engineers reviewing the TSV852IYST datasheet, TSV852IYST pinout, TSV852IYST application, or TSV852IYST equivalent, key selection criteria include its dual-channel shutdown control (SHDN1/SHDN2), rail-to-rail output swing (≤180 mV from rails), low 50 nA shutdown current, extended temperature qualification, and compatibility with 2.3–5.5 V single-supply operation.
Technical Context
The TSV852IYST implements a CMOS input stage with rail-to-rail output stage, supporting common-mode input range from VCC− −0.2 V to VCC+ −1 V and output swing within 180 mV of both supply rails under 10 kΩ load. Its internal architecture enables stable unity-gain operation with ≥60° phase margin up to 200 pF capacitive load.
Shutdown is controlled independently per channel via dedicated SHDN1 and SHDN2 pins: pulling either pin to VCC− disables the corresponding amplifier and places its output in high-impedance state, reducing supply current to ≤50 nA per channel. Turn-on/turn-off times are specified at 300 ns and 20 ns respectively under 2 kΩ load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.3 V to 5.5 V - supports direct connection to Li-ion battery (3.0–4.2 V) or 3.3 V/5 V system rails without regulation. |
| Gain Bandwidth Product | 1.3 MHz - enables stable closed-loop gain ≥10 at 100 kHz for anti-aliasing or sensor amplification stages. |
| Input Offset Voltage | 0.8 mV max at 25 °C - reduces DC error in precision transducer interfaces without trimming. |
| Supply Current per Channel | 180 µA max at 5 V - extends runtime in always-on automotive body electronics (e.g., door module sensors). |
| Shutdown Current | 50 nA max per channel - allows selective channel disablement in multi-sensor systems to cut quiescent power by >99.9%. |
| Operating Temperature | –40 °C to +125 °C - qualified for under-hood automotive applications per AEC-Q100 Grade 1. |
| Output Swing | Rail-to-rail - delivers full dynamic range into ADCs with 0–VCC input ranges (e.g., SAR or sigma-delta converters). |
Pinout & Package
TSV852IYST is housed in a 10-lead MiniSO10 package (3.0 × 3.0 mm, 0.65 mm pitch), optimized for thermal performance (RthJA = 113 °C/W) and PCB area efficiency in automotive ECUs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | In1+ | Non-inverting input of Channel 1 - accepts signals down to VCC− −0.2 V, enabling ground-referenced sensor interfacing. |
| 2 | In1− | Inverting input of Channel 1 - used for feedback configuration; matched with In1+ for <1 μV/°C offset drift. |
| 3 | Out1 | Output of Channel 1 - rail-to-rail capable; sinks/supplies ≥15 mA to support driving 2 kΩ loads directly. |
| 4 | VCC− | Negative supply rail - shared reference for both amplifiers and shutdown logic; must be connected to system ground or negative rail. |
| 5 | SHDN1 | Channel 1 shutdown control - logic low (≤0.5 V) disables Channel 1; must not float - tie to VCC− or VCC+. |
| 6 | SHDN2 | Channel 2 shutdown control - independent of SHDN1; enables staggered power management in dual-signal paths. |
| 7 | In2− | Inverting input of Channel 2 - electrically isolated from Channel 1; supports differential pair or separate sensor channels. |
| 8 | In2+ | Non-inverting input of Channel 2 - identical input specs to In1+, allowing matched dual-channel front-end design. |
| 9 | Out2 | Output of Channel 2 - high-impedance in shutdown; maintains <1 nA leakage when disabled. |
| 10 | VCC+ | Positive supply rail - supplies both amplifiers and shutdown circuitry; requires local 10 nF decoupling per datasheet recommendation. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive-grade qualification | AEC-Q100 Grade 1 certified - validated for operation at 125 °C ambient in engine control, transmission, and ADAS subsystems. |
| Rail-to-rail output stage | Swings within 180 mV of VCC+ and VCC− under 10 kΩ load - maximizes ADC utilization and eliminates level-shifting components. |
| Independent dual shutdown | SHDN1/SHDN2 pins enable per-channel power gating - critical for duty-cycled sensor fusion architectures (e.g., radar + camera preprocessing). |
| Low input offset drift | 1 μV/°C max over –40 °C to +125 °C - ensures <1.3 mV total offset shift across full automotive temperature range. |
| High ESD tolerance | 4 kV HBM (non-shutdown pins), 3.5 kV HBM (shutdown pins) - withstands handling and board-level transients in manufacturing and field environments. |
Applications
| Engine Coolant Temperature Sensing | Occupant Detection System Signal Conditioning |
|---|---|
|
Use Scenario: Amplifying low-level resistance changes from NTC thermistors embedded in engine coolant passages. IC Role / Device Role / Timing Role: Dual-channel op-amp providing precision gain and offset correction before 12-bit ADC sampling at 100 Hz. Use Value: 0.8 mV max Vos and 1 μV/°C drift ensure ±0.5 °C measurement accuracy across –40 °C to +125 °C coolant range without calibration. |
Use Scenario: Conditioning capacitance-voltage signals from seat-mounted electrodes detecting occupant presence and posture. IC Role / Device Role / Timing Role: Dual amplifier implementing correlated double sampling (CDS) to reject 50/60 Hz interference and electrode drift. Use Value: Rail-to-rail output and 1.3 MHz GBP support fast settling (<1 µs) for high-frame-rate CDS cycles, improving detection latency. |
| Electric Power Steering Torque Sensor Interface | Body Control Module Window Lift Monitoring |
|
Use Scenario: Amplifying Wheatstone bridge outputs from strain-gauge-based torque sensors in EPS motor assemblies. IC Role / Device Role / Timing Role: Dual op-amp configured as instrumentation amplifier front-end with matched gain and common-mode rejection. Use Value: 75 dB CMRR at 25 °C and 70 dB over temperature ensures accurate torque estimation despite 12 V battery ripple and motor switching noise. |
Use Scenario: Monitoring current sense resistor voltage during window lift motor operation to detect obstructions or end-of-travel. IC Role / Device Role / Timing Role: Single-channel amplifier with shutdown (SHDN2 unused) providing 20× gain into microcontroller ADC with auto-sleep on inactivity. Use Value: 50 nA shutdown current extends BCM standby battery life beyond 10 years while maintaining instant wake-up response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier with shutdown applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV852IST | No shutdown pins; standard MiniSO8 package (8-pin); same electrical specs except missing SHDN1/SHDN2. | Suitable only for always-on dual-amplifier functions; cannot support per-channel power gating. | Select when board layout lacks space for 10-pin footprint or shutdown is unnecessary. |
| LMV822QDGKR | Higher GBP (5.5 MHz); no shutdown; wider supply (2.7–5.5 V); AEC-Q100 qualified but lower Vos spec (1.5 mV max). | Better for high-frequency active filters or fast-settling buffers; less suitable for ultra-low-drift DC sensing. | Choose for bandwidth-critical signal chains where 0.8 mV Vos is not required. |
Compared with TSV852IYST, TSV852IST removes shutdown capability and reduces package size but sacrifices channel-level power control, while LMV822QDGKR trades offset precision for higher speed - making TSV852IYST optimal for automotive DC-sensing applications demanding both low drift and flexible power management.
Availability
TSV852IYST is available at Aetrix Electronics and suitable for automotive engine control units, occupant detection systems, and body control modules requiring stable component supply across extended temperature and long product lifecycles.
Supply support for TSV852IYST 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 microcontrollers, analog ICs, power devices, and MEMS sensors for automotive, industrial, and consumer markets.
The TSV85x series belongs to ST's precision analog portfolio, engineered specifically for automotive signal conditioning where low power, high accuracy, and AEC-Q100 reliability are mandatory in harsh environments.
FAQ
What is the maximum capacitive load the TSV852IYST can drive stably?
The TSV852IYST maintains ≥60° phase margin with up to 200 pF capacitive load at unity gain when driving a 50 kΩ resistive load, as verified in Figure 9 of the datasheet. For loads exceeding 200 pF, external isolation resistance (≥100 Ω) is recommended to preserve stability in sensor buffering applications.
Can SHDN1 and SHDN2 be tied together and driven by a single microcontroller GPIO?
Yes - SHDN1 and SHDN2 may be paralleled and driven by one GPIO, provided the MCU output can sink/source sufficient current (IIL/IIH ≤10 pA per pin, so total ≤20 pA). This configuration enables simultaneous dual-channel shutdown, simplifying firmware control in systems where both amplifiers operate synchronously.
Does the TSV852IYST support single-supply operation with VCC− grounded?
Yes - the device is fully specified for single-supply operation with VCC− = 0 V (GND) and VCC+ = 2.3–5.5 V. Its input common-mode range extends to VCC− −0.2 V (i.e., –0.2 V), and rail-to-rail output swings within 180 mV of GND, enabling true ground-sensed signal amplification without level-shifting.
How does the 50 nA shutdown current impact system-level power budgeting?
At 50 nA per channel, total shutdown current is 100 nA - consuming just 0.43 µC per hour at 5 V. In a body control module with 10 such amplifiers, this adds only 1.08 µA to the system's sleep current, well below typical 10–50 µA automotive standby limits and enabling >10-year battery backup without compromising responsiveness.
TSV852IYST 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:
- 0.7V/µs
- Gain Bandwidth Product:
- 1.3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 27 nA
- Voltage - Input Offset:
- 4 mV
- Current - Supply:
- 130µA (x2 Channels)
- Current - Output / Channel:
- 70 mA
- Voltage - Supply Span (Min):
- 2.3 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MiniSO
TSV852IYST FAQ
1.How can I place an order for TSV852IYST through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV852IYST 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 TSV852IYST reliable?
The price and inventory of TSV852IYST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV852IYST is usually 5 days.
3.What payment methods are accepted for TSV852IYST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV852IYST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV852IYST?
TSV852IYST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV852IYST 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 TSV852IYST?
For technical support, including TSV852IYST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV852IYST requirements.
6.How does Aetrix verify that TSV852IYST is sourced from the original manufacturer or authorized distributors?
All TSV852IYST 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 TSV852IYST meets industry standards.
7.What is the process for return or replacement of TSV852IYST?
All TSV852IYST units undergo pre-shipment inspection (PSI). If there is an issue with TSV852IYST, 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 TSV852IYST part is unused and in its original packaging.
Return procedure for TSV852IYST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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