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STMicroelectronics TSV994AIYPT
- Part No.:
- TSV994AIYPT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TSV994AIYPT.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,293
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Product details
Overview
TSV994AIYPT from STMicroelectronics is a quad rail-to-rail input/output operational amplifier optimized for low-voltage, low-power sensor interface and signal conditioning applications. It delivers 20 MHz gain-bandwidth at 820 µA supply current per channel, 1.5 mV max input offset voltage (A grade), ±5 kV ESD protection, and operates from 2.5 V to 5.5 V - enabling high-precision analog front-ends in automotive-grade portable medical and battery-powered systems.
For engineers reviewing the TSV994AIYPT datasheet, TSV994AIYPT pinout, TSV994AIYPT application, or TSV994AIYPT equivalent, key selection criteria include its minimum stable gain requirement (≥4 or ≤−3), ultra-low 1 pA typical input bias current, rail-to-rail output swing into 600 Ω, −40 °C to 125 °C automotive temperature range, and TSSOP-14 package compatibility with space-constrained PCB layouts.
Technical Context
The TSV994AIYPT implements a voltage-feedback op-amp architecture with internal compensation tuned for stability only at gains ≥4 (non-inverting) or ≤−3 (inverting), requiring external RC stabilization for unity-gain use. Its input stage uses complementary bipolar transistors to achieve 1 pA typical input bias current and 2 μV/°C offset drift.
Output stage supports 35 mA sourcing/sinking capability with rail-to-rail swing under 600 Ω load, while maintaining 10 V/μs slew rate and 21 nV/√Hz input noise at 10 kHz - making it suitable for driving resistive loads >2 kΩ and active filtering stages where precision, speed, and power efficiency are jointly critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 20 MHz - enables stable closed-loop operation up to ~5 MHz at gain = 4, supporting anti-aliasing and reconstruction filters. |
| Input offset voltage (max) | 1.5 mV - ensures ≤0.3% error in 500 mV full-scale sensor outputs without trimming. |
| Supply current per channel | 820 µA typ. - allows four-channel operation at <3.3 mA total, ideal for coin-cell–powered devices. |
| Input bias current (typ.) | 1 pA - minimizes voltage error across high-impedance sources (e.g., pH electrodes, piezoelectric sensors). |
| Common-mode input range | (VCC−) −0.1 V to (VCC+) +0.1 V - supports direct sensing of signals near supply rails in single-supply systems. |
| Output drive capability | ±35 mA - drives 600 Ω loads to rail with <150 mV dropout, enabling direct interface to ADC references or analog switches. |
| ESD protection | ≥5 kV HBM - meets IEC 61000-4-2 Level 4 requirements for automotive and industrial end-equipment. |
Pinout & Package
TSV994AIYPT is supplied in a 14-lead TSSOP package (JEDEC MO-153, 5.0 mm × 6.4 mm × 1.05 mm) with exposed thermal pad unconnected internally. Pin 1 is marked by a dot; pin numbering follows standard TSSOP convention (counterclockwise from top-left corner).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Channel A output | Rail-to-rail output capable of sourcing/sinking 35 mA; requires local 10 nF decoupling at VCC pins. |
| 2 (−IN A) | Channel A inverting input | High-impedance node (1 pA bias); sensitive to layout-induced leakage; guard ring recommended. |
| 3 (+IN A) | Channel A non-inverting input | Matches −IN A in offset and drift; used for unity-gain buffer with series output resistor for stability. |
| 4 (VCC−) | Negative supply rail | Ground reference for single-supply operation; connects to PCB ground plane for thermal and noise control. |
| 5 (+IN B) | Channel B non-inverting input | Electrically isolated from other inputs; enables independent dual-sensor conditioning on same die. |
| 6 (−IN B) | Channel B inverting input | Shares same process-matched characteristics as Channel A inputs; supports matched differential pairs. |
| 7 (OUT B) | Channel B output | Identical AC/DC specs to OUT A; may be paralleled only with external current-sharing resistors. |
| 8 (OUT C) | Channel C output | Third independent output; supports multi-stage filtering (e.g., 2-pole Sallen-Key + buffer). |
| 9 (−IN C) | Channel C inverting input | Validated for stability at gain ≥4; not recommended for unity-gain without RC compensation. |
| 10 (+IN C) | Channel C non-inverting input | Enables DC-coupled sensor biasing at mid-supply via resistor divider from VCC+ and VCC−. |
| 11 (VCC+) | Positive supply rail | Accepts 2.5–5.5 V; must be decoupled with 10 nF ceramic capacitor placed ≤2 mm from pin. |
| 12 (+IN D) | Channel D non-inverting input | Supports fourth independent analog path; usable for reference buffering or diagnostic monitoring. |
| 13 (−IN D) | Channel D inverting input | Matched to other channels for common-mode rejection in multi-channel acquisition systems. |
| 14 (OUT D) | Channel D output | Full 35 mA drive available; compatible with multiplexed ADC input drivers requiring fast settling. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in 2.5 V–5.5 V single-supply systems without level-shifting circuitry. |
| 20 MHz gain-bandwidth at 820 µA | Delivers 5× higher bandwidth per µA than legacy micropower op-amps, reducing filter component count. |
| 1.5 mV max input offset (A grade) | Eliminates need for factory calibration in medical sensor front-ends with ≤12-bit ENOB requirements. |
| −40 °C to 125 °C operating range | Qualified to AEC-Q100 Grade 1, supporting under-hood automotive and industrial motor-control feedback loops. |
| Stable for gain ≥4 or ≤−3 | Reduces external compensation components in gain-of-5 instrumentation amplifiers and inverting DAC buffers. |
Applications
| Portable ECG Monitor Front-End | Battery-Powered Gas Sensor Signal Chain |
|---|---|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes with high common-mode interference. IC Role / Device Role / Timing Role: Quad-channel configured as 3× instrumentation amplifier gain stages + 1× reference buffer; each channel processes one electrode pair. Use Value: 1 pA input bias prevents electrode polarization drift; rail-to-rail output drives 12-bit SAR ADC directly; 20 MHz GBW supports >10 kHz anti-aliasing filtering. | Use Scenario: Conditioning output from electrochemical CO sensor with 100 MΩ source impedance and sub-µA output current. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) stage followed by 2nd-order active low-pass filter; uses Channel A as TIA, B/C as filter sections. Use Value: 1 pA input bias avoids signal loss across sensor's high impedance; 1.5 mV offset limits zero-gas error to <0.5 ppm-equivalent; 35 mA output drives long traces to MCU ADC. |
| Automotive Cabin Air Quality Module | Industrial Predictive Maintenance Vibration Sensor Node |
Use Scenario: Simultaneous analog processing of PM2.5, VOC, and humidity sensor outputs in compact HVAC control unit. IC Role / Device Role / Timing Role: Four independent channels condition each sensor's analog output: one for NDIR CO₂, one for MOS VOC, two for capacitive humidity/temperature. Use Value: −40 °C to 125 °C rating ensures reliability in dashboard-mounted units; 5 kV ESD protects against assembly handling; low ICC extends battery backup runtime during power loss. | Use Scenario: Low-power signal conditioning for MEMS accelerometer in wireless vibration monitor deployed on rotating machinery. IC Role / Device Role / Timing Role: Single-supply 3-stage filter: high-pass (Channel A), band-pass (B+C), and output buffer (D); all powered from 3.3 V Li-ion cell. Use Value: 820 µA/channel enables 4-channel operation at <3.3 mA, extending 2-year battery life; 10 V/μs slew rate preserves 5 kHz resonance peaks; rail-to-rail output maximizes SNR into 16-bit delta-sigma ADC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV994IDT | Same core specs but SO-14 package, commercial −40 °C to 125 °C rating (not AEC-Q100 qualified), 1.5 mV offset only in A grade. | Lacks automotive qualification; larger footprint; higher thermal resistance (103 °C/W vs. 100 °C/W for TSSOP). | Select when cost sensitivity outweighs AEC-Q100 compliance and board space is unconstrained. |
| TSV914AIST | 8 MHz GBW, 550 µA ICC, same 1.5 mV offset, MiniSO8 package; unity-gain stable. | Lower bandwidth limits filter cutoff frequency; smaller package reduces PCB area but lowers power dissipation margin. | Select when unity-gain stability is mandatory and 8 MHz suffices for system bandwidth requirements. |
Compared with TSV994IDT, TSV994AIYPT adds AEC-Q100 qualification and tighter production screening for automotive use; compared with TSV914AIST, it trades unity-gain stability for 2.5× higher bandwidth and identical power, making it preferable for high-fidelity active filtering where gain ≥4 is acceptable.
Availability
TSV994AIYPT is available at Aetrix Electronics and suitable for automotive cabin air quality modules, portable medical diagnostics, battery-powered gas sensor nodes, and industrial predictive maintenance systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TSV994AIYPT 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 TSV99x family was developed specifically for high-precision, low-power analog signal conditioning in battery-operated and automotive environments - emphasizing rail-to-rail operation, low input bias current, and AEC-Q100-compliant reliability.
FAQ
Is TSV994AIYPT unity-gain stable?
No. TSV994AIYPT is internally compensated for stability only at closed-loop gains ≥4 (non-inverting) or ≤−3 (inverting). For unity-gain buffer use, a 10–47 Ω series resistor must be added between the output and inverting input, as validated in ST's Application Note AN4975 Section 5.1. Simulation with ST's macromodel is required to confirm phase margin.
What is the maximum capacitive load the output can drive without oscillation?
When configured at minimum stable gain (G ≥ 4), TSV994AIYPT drives up to 100 pF capacitive load without compensation, per datasheet Figure 8–9. For larger loads (e.g., >200 pF), a feedback capacitor (e.g., 1–10 pF) in parallel with the feedback resistor is required to suppress peaking, especially in inverting configurations.
Does the exposed pad on the TSSOP-14 package require connection?
No. The exposed pad on TSV994AIYPT's TSSOP-14 package is not internally connected to any die node. Per DS4975 Section 6.7, it may be left floating or soldered to a thermal pad tied to ground for improved heat dissipation - but no electrical connection is needed or recommended.
How does the 1.5 mV max offset voltage impact 12-bit ADC interfacing at 3.3 V full scale?
At 3.3 V full scale, 12-bit LSB = 803 µV. A 1.5 mV max offset introduces ≤1.87 LSB error - within typical 12-bit system tolerance. No zero-calibration is required if system accuracy budget allows <2 LSB offset contribution; otherwise, software or external trimming is needed.
TSV994AIYPT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- 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 (x4 Channels)
- 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:
- 14-TSSOP
TSV994AIYPT FAQ
1.How can I place an order for TSV994AIYPT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV994AIYPT 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 TSV994AIYPT reliable?
The price and inventory of TSV994AIYPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV994AIYPT is usually 5 days.
3.What payment methods are accepted for TSV994AIYPT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV994AIYPT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV994AIYPT?
TSV994AIYPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV994AIYPT 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 TSV994AIYPT?
For technical support, including TSV994AIYPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV994AIYPT requirements.
6.How does Aetrix verify that TSV994AIYPT is sourced from the original manufacturer or authorized distributors?
All TSV994AIYPT 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 TSV994AIYPT meets industry standards.
7.What is the process for return or replacement of TSV994AIYPT?
All TSV994AIYPT units undergo pre-shipment inspection (PSI). If there is an issue with TSV994AIYPT, 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 TSV994AIYPT part is unused and in its original packaging.
Return procedure for TSV994AIYPT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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