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STMicroelectronics TSV991IYDT
- Part No.:
- TSV991IYDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TSV991IYDT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,016
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Product details
Overview
TSV991IYDT from STMicroelectronics is a single, rail-to-rail input/output operational amplifier optimized for low-voltage, low-power applications. It delivers 20 MHz gain-bandwidth at ≥4 or ≤−3 minimum stable gain, 1.5 mV max input offset voltage (A grade), 820 µA typical supply current, and 35 mA output drive-enabling precision signal conditioning in automotive sensor interfaces.
For engineers reviewing the TSV991IYDT datasheet, TSV991IYDT pinout, TSV991IYDT application, or TSV991IYDT equivalent, key selection criteria include its AEC-Q100 qualified SO8 package, −40 °C to +125 °C automotive temperature range, rail-to-rail operation down to 2.5 V supply, and stability requirements for non-unity-gain configurations.
Technical Context
The TSV991IYDT employs a high-speed, low-power CMOS input stage delivering 1 pA typical input bias current and 21 nV/√Hz input voltage noise at 10 kHz. Its internal compensation ensures phase margin ≥45° only when configured with gain ≥4 (non-inverting) or ≤−3 (inverting), requiring external stabilization for unity-gain use.
It operates across 2.5 V to 5.5 V supply, supports common-mode input range from VCC− −0.1 V to VCC+ +0.1 V, and achieves 75 dB CMRR and 86 dB SVR at 5 V-making it suitable for high-accuracy, battery-constrained analog front-ends where input leakage and supply rejection critically impact sensor signal integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 20 MHz - enables accurate amplification of signals up to ~5 MHz in closed-loop G = 4 configuration |
| Input offset voltage (max) | 1.5 mV - limits DC error to ≤0.75% of full-scale in 2 V output range applications |
| Supply current (typ) | 820 µA - supports >10-year battery life in 10 µA average-current portable systems |
| Output drive (min) | 32 mA sink/source - drives 600 Ω loads while maintaining rail-to-rail swing at 5 V |
| Input bias current (typ) | 1 pA - preserves signal integrity in high-impedance pH, photodiode, or thermocouple sensor nodes |
| Common-mode rejection | 75 dB min - rejects >5,600:1 of power-supply-coupled interference in noisy automotive environments |
| ESD protection | ≥5 kV HBM - withstands handling and board-level electrostatic discharge without latch-up |
Pinout & Package
TSV991IYDT is supplied in an SO8 (Small Outline 8-pin) package with exposed pad unconnected. Pin 1 is marked by a beveled corner or dot; the device is AEC-Q100 qualified for automotive use.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No connect | Internally unused; must remain floating or grounded per layout guidelines |
| 2 (IN−) | Inverting input | Differential node for feedback network connection; high-impedance CMOS input |
| 3 (IN+) | Non-inverting input | Sensor or reference signal input; rail-to-rail common-mode range supports 0–5.5 V |
| 4 (VCC−) | Negative supply | Ground reference for single-supply operation; connects to system GND |
| 5 (OUT) | Amplifier output | Rail-to-rail capable; drives capacitive loads up to 100 pF without oscillation at G ≥ 4 |
| 6 (NC) | No connect | Internally unused; no PCB trace required |
| 7 (VCC+) | Positive supply | Accepts 2.5–5.5 V; requires 10 nF decoupling capacitor placed <1 mm from pin |
| 8 (NC) | No connect | Internally unused; may be tied to VCC− for mechanical stability if needed |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization with 2.5 V supply-critical for low-voltage battery-powered sensors |
| 20 MHz GBP at low power | Delivers bandwidth comparable to higher-quiescent-current op-amps while consuming only 820 µA |
| AEC-Q100 Grade 1 qualification | Validated for −40 °C to +125 °C operation with extended reliability testing per automotive standards |
| Ultra-low 1 pA input bias current | Minimizes voltage error across high-impedance sources (e.g., >10 MΩ medical electrodes or gas sensors) |
| Stable at G ≥ 4 or G ≤ −3 | Eliminates need for external compensation in standard gain configurations-reduces BOM count |
Applications
| Automotive Cabin Sensors | Portable Medical Pulse Oximeters |
|---|---|
|
Use Scenario: Amplifying weak analog signals from MEMS pressure or humidity sensors in climate control modules. IC Role / Device Role / Timing Role: Precision DC-coupled signal conditioner with rail-to-rail output driving 12-bit SAR ADC reference buffer. Use Value: 1.5 mV max Vio and 75 dB CMRR ensure <0.1% measurement error despite 12 V battery ripple and thermal drift. |
Use Scenario: Conditioning photodiode current from red/IR LEDs in wearable pulse oximetry circuits. IC Role / Device Role / Timing Role: Transimpedance amplifier with 1 pA input bias enabling >10 MΩ feedback resistors for high gain and low noise. Use Value: 21 nV/√Hz noise and 20 MHz GBP support clean AC pulse detection at 1–5 Hz with minimal baseline drift. |
| Battery-Powered Data Loggers | Industrial Temperature Monitoring Nodes |
|
Use Scenario: Buffering thermistor or RTD bridge outputs in remote environmental loggers powered by coin cells. IC Role / Device Role / Timing Role: Low-power unity-gain follower (with 10 Ω series resistor) preserving signal fidelity during 10-year deployments. Use Value: 820 µA ICC and rail-to-rail I/O extend usable battery life beyond 5 years while maintaining ±0.5 °C accuracy. |
Use Scenario: Signal conditioning for 4–20 mA loop-powered temperature transmitters in factory automation. IC Role / Device Role / Timing Role: High-PSRR (86 dB) amplifier rejecting supply noise from shared 24 V industrial rails. Use Value: 86 dB SVR suppresses >99.9% of 120 Hz ripple from switching power supplies-ensuring stable 0.1 °C resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision, low-power op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV911IDT | 8 MHz GBP, unity-gain stable, 550 µA ICC, same SO8 package | Lower bandwidth suits DC/low-frequency sensor buffering; not suitable for active filtering above 1 MHz | Select when unity-gain stability is mandatory and 20 MHz bandwidth is unnecessary |
| TSV771ICT | 20 MHz GBP, unity-gain stable, 1.3 mA ICC, SO8 package | Higher quiescent current trades power for unconditional stability-no external compensation needed | Select when design schedule prohibits stability validation and 1.3 mA ICC is acceptable |
Compared with TSV911IDT, TSV991IYDT provides 2.5× higher bandwidth at slightly higher power; compared with TSV771ICT, it saves 38% supply current but requires gain ≥4 for stability-making it optimal for automotive signal chains where bandwidth and efficiency are prioritized over unity-gain convenience.
Availability
TSV991IYDT is available at Aetrix Electronics and suitable for automotive cabin sensing, portable medical instrumentation, and industrial temperature monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TSV991IYDT 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 management devices, and MEMS sensors for industrial, automotive, and consumer markets.
The TSV99x family was developed specifically for high-accuracy, low-power analog signal conditioning in automotive and portable equipment-emphasizing rail-to-rail operation, ultra-low input bias, and AEC-Q100 compliance from initial silicon design.
FAQ
Is TSV991IYDT unity-gain stable?
No. The TSV991IYDT is internally compensated for minimum gains of ≥4 (non-inverting) or ≤−3 (inverting). Using it in unity-gain follower configuration requires adding a small series resistor (e.g., 10 Ω) at the output to ensure stability, as confirmed in Section 5.1 of DS4975 Rev 16. Bench validation with capacitive load is mandatory.
What is the meaning of "IY" in TSV991IYDT?
"IY" denotes AEC-Q100 Grade 1 qualification (−40 °C to +125 °C) and automotive-specific screening per AEC Q001/Q002. This distinguishes it from commercial-grade "ILT" (SOT23-5) or "IDT" (SO8) variants without automotive qualification, as defined in Table 13 of DS4975 Rev 16.
Can TSV991IYDT drive capacitive loads directly?
It can drive ≤100 pF capacitive loads stably at gain ≥4 without external compensation, per electrical characteristics on page 5 of DS4975 Rev 16. For larger loads or unity-gain use, a series resistor at the output or feedback capacitor is required-details are provided in Figure 16 and Section 5.1.
Does the exposed pad on the SO8 package require connection?
No. The SO8 package used for TSV991IYDT does not feature an exposed thermal pad-only DFN8 2x2 and DFN6 packages in the TSV99x family include exposed pads. The SO8 variant relies on standard lead-frame thermal conduction; no pad connection is specified or required in DS4975 Rev 16.
TSV991IYDT 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:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 10V/µs
- Gain Bandwidth Product:
- 20 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 820µA
- Current - Output / Channel:
- 35 mA
- Voltage - Supply Span (Min):
- 2.5 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-SOIC
TSV991IYDT FAQ
1.How can I place an order for TSV991IYDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV991IYDT 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 TSV991IYDT reliable?
The price and inventory of TSV991IYDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV991IYDT is usually 5 days.
3.What payment methods are accepted for TSV991IYDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV991IYDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV991IYDT?
TSV991IYDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV991IYDT 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 TSV991IYDT?
For technical support, including TSV991IYDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV991IYDT requirements.
6.How does Aetrix verify that TSV991IYDT is sourced from the original manufacturer or authorized distributors?
All TSV991IYDT 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 TSV991IYDT meets industry standards.
7.What is the process for return or replacement of TSV991IYDT?
All TSV991IYDT units undergo pre-shipment inspection (PSI). If there is an issue with TSV991IYDT, 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 TSV991IYDT part is unused and in its original packaging.
Return procedure for TSV991IYDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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