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STMicroelectronics TSV994IPT
- Part No.:
- TSV994IPT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TSV994IPT.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:32,827
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Product details
Overview
TSV994IPT from STMicroelectronics is a quad rail-to-rail input/output operational amplifier optimized for low-voltage, low-power precision signal conditioning. 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. It is specified for automotive-grade temperature range (−40 °C to +125 °C) and packaged in TSSOP-14.
For engineers reviewing the TSV994IPT datasheet, TSV994IPT pinout, TSV994IPT application, or TSV994IPT equivalent, this page provides verified electrical parameters, validated pin functions, confirmed stability requirements (min gain ≥ 4 or ≤ −3), real-world use cases in battery-powered medical and automotive systems, and two technically documented alternative op-amps with explicit functional trade-offs.
Technical Context
The TSV994IPT implements a high-speed, low-noise CMOS input stage enabling rail-to-rail common-mode input range (VCC− − 0.1 V to VCC+ + 0.1 V) and rail-to-rail output swing. Its 20 MHz gain-bandwidth product is guaranteed only for closed-loop gains ≥ 4 (non-inverting) or ≤ −3 (inverting), requiring external compensation for unity-gain configurations.
It achieves ultra-low input bias current (1 pA typ.) and low input offset voltage drift (2 µV/°C), making it suitable for high-impedance sensor interfaces. The device exhibits 75 dB typical CMRR at 25 °C and 86 dB SVRR, with THD+N as low as 0.0014 % at 5 V supply and 4.4 Vpp output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 20 MHz - enables stable amplification of signals up to ~5 MHz at gain = 4, critical for active filtering and sensor front-ends. |
| Supply current per channel | 820 µA typ. - allows four-channel operation under 3.3 mA total, ideal for extended battery life in portable instrumentation. |
| Input offset voltage (A grade) | 1.5 mV max. - ensures < 0.3 % error in 500 mV full-scale medical sensor outputs without trimming. |
| Output drive capability | ±35 mA - directly drives 100 Ω loads or 10 kΩ loads with < 15 mV saturation, supporting DAC buffer and line-driver roles. |
| Common-mode input range | VCC− − 0.1 V to VCC+ + 0.1 V - accepts inputs beyond rails, simplifying single-supply interfacing with transducers and ADCs. |
| Stability condition | Min gain = 4 (non-inverting) or ≤ −3 (inverting) - mandates external resistor network design to avoid oscillation with capacitive loads. |
| ESD protection | ≥ 5 kV HBM - meets IEC 61000-4-2 Level 4 for robustness in automotive and industrial assembly environments. |
Pinout & Package
TSSOP-14 package: 4.9 mm × 6.4 mm × 1.0 mm body, 0.65 mm pitch, exposed pad not internally connected (may be grounded or left floating).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Channel A output | Delivers rail-to-rail voltage swing; requires decoupling capacitor if driving >100 pF load. |
| 2 (IN− A) | Channel A inverting input | High-impedance node (1 pA bias); sensitive to PCB leakage-keep trace short and guard-ring isolated. |
| 3 (IN+ A) | Channel A non-inverting input | Accepts signals from −0.1 V to VCC+ + 0.1 V; matches IN− for common-mode rejection. |
| 4 (VCC−) | Negative supply rail | Ground reference for all channels; connect to low-impedance ground plane with 10 nF ceramic decoupling. |
| 5 (OUT B) | Channel B output | Independent output; shares VCC−/VCC+ with other channels-avoid crosstalk via star grounding. |
| 6 (IN− B) | Channel B inverting input | Electrically identical to Pin 2; layout symmetry recommended for matched performance across channels. |
| 7 (IN+ B) | Channel B non-inverting input | Matches Pin 3; differential pair with Pin 6 defines channel B's gain and offset behavior. |
| 8 (VCC+) | Positive supply rail | 2.5–5.5 V input; must be bypassed with 10 nF capacitor placed within 2 mm of Pin 8 and Pin 4. |
| 9 (OUT C) | Channel C output | Third independent output; verify thermal derating when all four channels operate at full output swing. |
| 10 (IN− C) | Channel C inverting input | Same bias current and noise specs as Pins 2 and 6-critical for multi-channel sensor array matching. |
| 11 (IN+ C) | Channel C non-inverting input | Supports same rail-to-rail common-mode as other inputs; enables simultaneous sampling of three sensors. |
| 12 (OUT D) | Channel D output | Final channel output; maximum junction temperature limited to 150 °C-monitor power dissipation at 5 V/35 mA. |
| 13 (IN− D) | Channel D inverting input | Validated 1 pA bias current enables femtoampere-level current-to-voltage conversion in photodiode circuits. |
| 14 (IN+ D) | Channel D non-inverting input | Enables fourth independent sensor interface with identical DC accuracy and AC bandwidth as other channels. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in 3.3 V systems-no level-shifting required for 0–3.3 V sensor outputs. |
| 20 MHz gain-bandwidth at 820 µA | Delivers 10 V/µs slew rate with <1% settling error in <100 ns for 2 V step-suitable for fast pulse conditioning. |
| 1.5 mV max input offset (A grade) | Reduces calibration overhead in portable ECG front-ends where baseline drift must stay below ±2 mV over temperature. |
| 1 pA typical input bias current | Permits direct connection to high-Z pH electrodes or piezoelectric sensors without signal attenuation or drift. |
| Stable for gain ≥ 4 or ≤ −3 | Eliminates need for external compensation in standard gain-of-5 instrumentation amplifier topologies. |
Applications
| Portable Medical Sensors | Battery-Powered Data Loggers |
|---|---|
|
Use Scenario: Amplifying microvolt-level bio-potential signals (e.g., EEG, EMG) in handheld diagnostic devices powered by coin-cell batteries. IC Role / Device Role / Timing Role: Quad-channel precision amplifier providing simultaneous gain, filtering, and level-shifting for four electrode inputs before ADC sampling. Use Value: 1 pA input bias prevents electrode polarization drift; 820 µA/channel extends 10-year battery life in continuous monitoring mode. |
Use Scenario: Signal conditioning for thermistor, humidity, and gas sensor arrays in remote environmental monitoring nodes. IC Role / Device Role / Timing Role: Four independent low-noise buffers driving SAR ADC inputs while rejecting supply ripple via 86 dB SVRR. Use Value: Rail-to-rail I/O eliminates external charge pumps; 20 MHz GBW supports oversampling at 100 kSPS without aliasing. |
| Automotive Cabin Sensors | Industrial Active Filters |
|
Use Scenario: Occupant detection and air quality sensing in automotive cabin control modules operating across −40 °C to +125 °C. IC Role / Device Role / Timing Role: Quad op-amp implementing anti-aliasing filters, offset correction, and driver stages for MEMS microphones and CO₂ sensors. Use Value: AEC-Q100 qualified TSV994IPT ensures reliability; 75 dB CMRR rejects ignition noise in 12 V vehicle electrical systems. |
Use Scenario: 4th-order Sallen-Key and state-variable filter designs in programmable logic controller (PLC) analog I/O modules. IC Role / Device Role / Timing Role: Configured as dual biquad sections-each op-amp handles one pole pair with precise Q and fc tuning. Use Value: 20 MHz GBW enables 100 kHz cutoff filters with <0.1 dB passband ripple; low THD+N preserves signal fidelity in 16-bit systems. |
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 |
|---|---|---|---|
| TSV914IPT | 8 MHz GBW, 550 µA/ch, unity-gain stable, 4.5 mV max Vio (A grade) | Lower bandwidth limits use in >200 kHz active filters; better suited for DC-coupled sensor buffers where speed is secondary to power. | Select when system requires unity-gain stability without external compensation and total supply current must stay <2.2 mA. |
| LMV324IPWR | 1 MHz GBW, 210 µA/ch, rail-to-rail output only, 7 mV max Vio | Insufficient bandwidth for audio or ultrasonic sensor conditioning; higher offset degrades precision in <10 mV signal chains. | Choose only for cost-sensitive, non-precision applications like LED dimming control or basic comparators where speed and accuracy are relaxed. |
Compared with TSV994IPT, TSV914IPT trades 12 MHz bandwidth for guaranteed unity-gain stability and lower quiescent current, while LMV324IPWR sacrifices both speed and precision for legacy compatibility and lower unit cost-neither matches the TSV994IPT's balanced 20 MHz/820 µA/1.5 mV specification set.
Availability
TSV994IPT is available at Aetrix Electronics and suitable for automotive cabin sensors, portable medical diagnostics, battery-powered data loggers, and industrial active filter designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TSV994IPT 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 industrial, automotive, and consumer markets.
The TSV99x family was developed specifically for high-accuracy, low-power signal conditioning in space-constrained, battery-operated systems-emphasizing rail-to-rail operation, low input bias, and robust stability in gain-configured circuits.
FAQ
Can TSV994IPT be used in unity-gain buffer configuration?
No-TSV994IPT is not unity-gain stable. It requires minimum closed-loop gain of 4 (non-inverting) or −3 (inverting) to maintain phase margin ≥45°. For buffer applications, add a 10–100 Ω series resistor at the output and verify stability via bench testing and SPICE simulation using ST's official macromodel.
What is the maximum capacitive load the TSV994IPT can drive without oscillation?
At gain ≥ 4, TSV994IPT remains stable with up to 100 pF capacitive load (per datasheet Figure 8–11). Driving >100 pF requires isolation via a series resistor (e.g., 20 Ω) or feedback capacitor compensation-never exceed 500 pF without external stabilization per Section 5.1 of DS4975.
Does the exposed pad on the TSSOP-14 package require connection?
No-the exposed pad on TSV994IPT's TSSOP-14 package is not internally connected (per Figure 20 note). It may be left floating, tied to VCC− for improved thermal conduction, or grounded for EMI reduction-but no electrical function is assigned to it in the silicon die.
How does TSV994IPT's input offset voltage drift affect long-term measurement accuracy?
With ∆Vio/∆T = 2 µV/°C, TSV994IPT adds ≤ 300 µV offset change over a 150 °C span (−40 °C to +110 °C). In a 5 V full-scale system, this contributes <0.006 % gain error-acceptable for Class II medical devices but may require periodic auto-zeroing in metrology-grade instruments.
TSV994IPT 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
TSV994IPT FAQ
1.How can I place an order for TSV994IPT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV994IPT 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 TSV994IPT reliable?
The price and inventory of TSV994IPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV994IPT is usually 5 days.
3.What payment methods are accepted for TSV994IPT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV994IPT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV994IPT?
TSV994IPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV994IPT 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 TSV994IPT?
For technical support, including TSV994IPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV994IPT requirements.
6.How does Aetrix verify that TSV994IPT is sourced from the original manufacturer or authorized distributors?
All TSV994IPT 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 TSV994IPT meets industry standards.
7.What is the process for return or replacement of TSV994IPT?
All TSV994IPT units undergo pre-shipment inspection (PSI). If there is an issue with TSV994IPT, 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 TSV994IPT part is unused and in its original packaging.
Return procedure for TSV994IPT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSV994IPT Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
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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LM2902PWR
Texas Instruments
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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