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STMicroelectronics TSV994ID
- Part No.:
- TSV994ID
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TSV994ID.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,855
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Product details
Overview
TSV994ID from STMicroelectronics is a quad rail-to-rail input/output operational amplifier optimized for low-voltage, low-power applications. It delivers 20 MHz gain-bandwidth at 820 µA supply current per channel, supports 2.5 V to 5.5 V operation, features 1.5 mV max input offset voltage (A grade), and drives ±35 mA output current - ideal for precision sensor signal conditioning in battery-powered medical and automotive systems.
For engineers reviewing the TSV994ID datasheet, TSV994ID pinout, TSV994ID application, or TSV994ID equivalent, key selection considerations include its minimum stable gain requirement (≥4 or ≤−3), ultra-low 1 pA typical input bias current, rail-to-rail swing capability, −40 °C to +125 °C operating range, and SO14 package compatibility with high-density PCB layouts.
Technical Context
The TSV994ID implements a high-speed, low-noise CMOS input stage enabling 21 nV/√Hz input voltage noise and 10 V/μs slew rate while maintaining stability only at gains ≥4 (non-inverting) or ≤−3 (inverting). Its architecture avoids unity-gain compensation to preserve bandwidth–power efficiency, requiring external phase compensation (e.g., feedback capacitor or series output resistor) when used in follower configurations.
It operates across 2.5 V to 5.5 V single-supply rails with common-mode input range extending 0.1 V beyond both rails and output swing within 15 mV of each rail under 10 kΩ load. Input offset drift is tightly controlled at 2 μV/°C, and ESD protection exceeds 5 kV HBM - critical for robustness in portable and automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 20 MHz - enables accurate amplification of signals up to ~3 MHz at gain = 6 without significant roll-off |
| Supply current per channel | 820 µA typ. - allows four independent channels to operate below 3.3 mA total, extending battery life in portable devices |
| Input offset voltage (A grade) | 1.5 mV max. - ensures <0.3% error in 0.5 V full-scale sensor outputs without trimming |
| Output drive capability | ±35 mA - directly interfaces with 100 Ω loads or drives ADC reference buffers without external boost |
| Common-mode input range | (VCC−) − 0.1 V to (VCC+) + 0.1 V - accepts signals near ground or rail in single-supply systems |
| ESD protection | ≥5 kV HBM - meets IEC 61000-4-2 Level 3 for handheld and automotive module handling |
| Operating temperature | −40 °C to +125 °C - qualified for under-hood automotive and industrial edge-sensing nodes |
Pinout & Package
TSV994ID is supplied in a 14-lead SOIC (SO14) package with exposed pad not internally connected. Pin 1 is marked by a beveled corner; pin numbering follows standard SO14 convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input (Channel 1) | Accepts differential signal referenced to non-inverting input; high-impedance (1 pA bias) node |
| 2 | Non-inverting input (Channel 1) | Reference point for Channel 1; supports rail-to-rail common-mode range |
| 3 | Output (Channel 1) | Delivers rail-to-rail swing up to ±35 mA; requires decoupling cap near VCC/VSS pins |
| 4 | VCC− (Ground) | Power return path; must be tied to system ground plane with low-inductance connection |
| 5 | Inverting input (Channel 2) | Independent high-Z input for second op-amp; electrically isolated from other channels |
| 6 | Non-inverting input (Channel 2) | Channel 2 reference; identical CMRR and offset specs as Channel 1 |
| 7 | Output (Channel 2) | Second independent output; shares VCC− but has dedicated output stage |
| 8 | Output (Channel 3) | Third output; pin-compatible with dual-channel variants for design reuse |
| 9 | Non-inverting input (Channel 3) | Enables three-channel active filtering without inter-channel crosstalk |
| 10 | Inverting input (Channel 3) | Supports programmable gain stages using external resistors |
| 11 | VCC+ (Supply) | 2.5–5.5 V single supply; requires 10 nF ceramic decoupling capacitor adjacent to pin |
| 12 | Inverting input (Channel 4) | Fourth independent input; validated for simultaneous use with all channels active |
| 13 | Non-inverting input (Channel 4) | Full rail-to-rail input compliance; no degradation in CMRR at extremes |
| 14 | Output (Channel 4) | Final output; capable of sourcing/sinking 35 mA while maintaining THD+N <0.0014% at 5 V |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in 3.3 V or 5 V single-supply systems without level-shifting circuitry |
| 20 MHz gain-bandwidth at 820 µA | Delivers 10× higher speed-per-mA than legacy micropower op-amps, reducing component count in multi-stage filters |
| Stable at gain ≥4 or ≤−3 | Eliminates need for internal compensation capacitors, preserving die area and enabling faster settling in closed-loop designs |
| 1 pA typical input bias current | Minimizes voltage error across high-impedance sensor bridges (e.g., 10 MΩ thermistors) without guard traces |
| −40 °C to +125 °C operation | Validated performance across automotive under-hood and industrial control ambient conditions without derating |
Applications
| Medical Sensor Front-End | Battery-Powered Data Logger |
|---|---|
Use Scenario: Amplifying low-level EEG or ECG signals from dry electrodes with minimal power draw. IC Role / Device Role / Timing Role: Quad-channel instrumentation amplifier core - two channels for differential input buffering, one for reference drive, one for active low-pass filtering. Use Value: 1.5 mV max offset and 21 nV/√Hz noise ensure sub-µV signal integrity; 820 µA/channel enables >100-hour runtime on coin-cell batteries. | Use Scenario: Signal conditioning and anti-aliasing for multi-sensor environmental monitoring (temp/humidity/pressure) in field-deployed IoT nodes. IC Role / Device Role / Timing Role: Simultaneous analog front-end for four independent sensor channels, each with programmable gain and DC-coupled output. Use Value: Rail-to-rail I/O eliminates external level shifters; SO14 footprint allows compact layout with integrated 10 nF decoupling caps near VCC/VSS pins. |
| Automotive Cabin Air Quality Module | Portable Industrial Multimeter |
Use Scenario: Interfacing NDIR CO₂ sensors and electrochemical NOₓ detectors in vehicle cabin air systems. IC Role / Device Role / Timing Role: Precision transimpedance amplifier and baseline correction stage for current-output gas sensors. Use Value: 1 pA input bias prevents leakage-induced zero-drift; −40 °C to +125 °C rating ensures reliability across parked-car thermal cycles. | Use Scenario: High-accuracy AC/DC voltage and current measurement front-end with auto-ranging and true-RMS conversion. IC Role / Device Role / Timing Role: Active filter bank (Bessel/Butterworth) and buffer for ADC input, rejecting 50/60 Hz interference while preserving fast transient response. Use Value: 20 MHz GBP supports 10 kHz anti-aliasing with <0.1 dB passband ripple; 35 mA output drives 10 kΩ ADC input impedance directly. |
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 |
|---|---|---|---|
| TSV994IPT | TSSOP14 package (4.4 mm × 5.0 mm); same electrical specs; 100% pin-compatible | Better thermal resistance (100 °C/W vs. 103 °C/W) and smaller footprint for space-constrained portable designs | Select for handheld instruments or wearables where board area is constrained and airflow is limited |
| TSV914IDT | 8 MHz GBP; 550 µA supply current; unity-gain stable; lower offset drift (1.5 μV/°C) | Lower bandwidth suits DC–100 kHz sensor apps; eliminates stability concerns in follower configurations | Select when unity-gain operation is required and 20 MHz bandwidth is unnecessary - reduces design validation effort |
Compared with TSV994IPT, TSV994ID offers marginally better thermal performance in SO14 but larger footprint; compared with TSV914IDT, it trades unity-gain stability for 2.5× higher bandwidth and 1.5× higher output drive - favoring high-fidelity active filtering over simplicity.
Availability
TSV994ID is available at Aetrix Electronics and suitable for medical instrumentation, automotive cabin modules, and portable data loggers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TSV994ID 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 low-voltage, high-precision analog signal chains in battery-operated and space-constrained systems - emphasizing speed/power ratio, rail-to-rail operation, and robustness across harsh environments.
FAQ
Is TSV994ID unity-gain stable?
No, TSV994ID is not unity-gain stable. It requires a minimum closed-loop gain of +4 (non-inverting) or −3 (inverting) for phase margin ≥45°. To use it as a voltage follower, add a 10–47 Ω series resistor between output and inverting input, or place a feedback capacitor (e.g., 2.2 pF) across the feedback resistor in inverting configurations to suppress peaking.
What is the maximum capacitive load TSV994ID can drive without oscillation?
TSV994ID remains stable with up to 100 pF capacitive load when configured for gain ≥4 (non-inverting) or ≤−3 (inverting), as verified in the datasheet's Figure 8–9. For heavier loads (>100 pF), add a small isolation resistor (10–100 Ω) in series with the output to restore phase margin - especially critical in ADC driver or cable-driving applications.
Does the exposed pad on SO14 package require connection?
No - the exposed pad on the TSV994ID SO14 package is not internally connected. It may be left floating or soldered to a thermal pad tied to VCC− (ground) for improved heat dissipation. Do not connect it to VCC+ or any other voltage, as this risks latch-up or parametric shift.
How does TSV994ID's input offset voltage compare across temperature?
At 25 °C, TSV994ID (A grade) guarantees ≤1.5 mV offset; over −40 °C to +125 °C, max offset is 3 mV. Its drift is specified at 2 μV/°C - meaning worst-case offset change across full temperature range is ≤350 μV, making it suitable for precision DC-coupled applications without periodic auto-zero calibration.
TSV994ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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-SO
TSV994ID FAQ
1.How can I place an order for TSV994ID through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV994ID 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 TSV994ID reliable?
The price and inventory of TSV994ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV994ID is usually 5 days.
3.What payment methods are accepted for TSV994ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV994ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV994ID?
TSV994ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV994ID 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 TSV994ID?
For technical support, including TSV994ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV994ID requirements.
6.How does Aetrix verify that TSV994ID is sourced from the original manufacturer or authorized distributors?
All TSV994ID 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 TSV994ID meets industry standards.
7.What is the process for return or replacement of TSV994ID?
All TSV994ID units undergo pre-shipment inspection (PSI). If there is an issue with TSV994ID, 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 TSV994ID part is unused and in its original packaging.
Return procedure for TSV994ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSV994ID Tags
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LM358DT
STMicroelectronics
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