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STMicroelectronics TS972IQT
- Part No.:
- TS972IQT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-VFDFN Exposed Pad
- Datasheet:
-
TS972IQT.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:11,974
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Product details
Overview
TS972IQT from STMicroelectronics is a dual rail-to-rail output, very low-noise operational amplifier in a 3×3 mm DFN8 exposed-pad package. It operates from 2.7 V to 10 V single supply (or ±2.5 V dual), delivers 4 nV/√Hz input voltage noise, 0.003 % THD at 1 kHz, and 12 MHz gain bandwidth - optimized for high-fidelity audio pre-amplification in space-constrained portable equipment.
For engineers reviewing the TS972IQT datasheet, TS972IQT pinout, TS972IQT application, or TS972IQT equivalent, this device is selected for low-distortion analog signal conditioning where board area, power efficiency, and noise floor are critical - especially in battery-powered audio front-ends and precision sensor interfaces.
Technical Context
The TS972IQT integrates two independent op-amps with rail-to-rail output swing (±2.4 V at ±2.5 V supply), enabling full dynamic range utilization in low-voltage systems. Its 4 nV/√Hz input voltage noise and 250 fA/√Hz input current noise support high-gain, low-level signal amplification without degrading SNR.
It features 12 MHz unity-gain bandwidth and 4 V/µs slew rate under 2 kΩ load, with phase margin ≥60° across operating conditions. Input common-mode range extends to VDD + 1.15 V and VCC − 1.15 V, supporting single-supply operation with ground-referenced inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 10 V single supply (or ±2.5 V dual) - enables direct integration into 3.3 V and 5 V systems without level-shifting. |
| Input Voltage Noise | 4 nV/√Hz at 100 kHz - preserves signal integrity in microphone preamps and instrumentation amplifiers. |
| THD + N | 0.003 % at 1 kHz, RL = 10 kΩ - meets professional audio line-level fidelity requirements. |
| Gain Bandwidth Product | 12 MHz - supports stable closed-loop gain up to ~100× at audio frequencies with adequate phase margin. |
| Slew Rate | 4 V/µs - ensures faithful reproduction of fast transients in audio and active filter applications. |
| Output Swing | Rail-to-rail, ±2.4 V at ±2.5 V - maximizes usable output voltage range in low-headroom supplies. |
| ESD Protection | 2 kV HBM - enhances robustness during PCB handling and end-equipment integration. |
Pinout & Package
TS972IQT uses an 8-pin DFN (3 × 3 mm, 0.5 mm pitch) with exposed thermal pad. The package supports compact layout and improved thermal dissipation (RthJA = 40 °C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input (Amplifier A) | Accepts differential signal input; referenced to common-mode voltage range extending to VDD + 1.15 V. |
| 2 | Non-inverting input (Amplifier A) | High-impedance input node; bias current ≤750 nA over temperature. |
| 3 | Output (Amplifier A) | Rail-to-rail output capable of sourcing 1.5 mA and sinking 100 mA - drives 2 kΩ loads directly. |
| 4 | VDD (Ground / Negative Supply) | Reference terminal for dual-supply operation; connects to system ground in single-supply configurations. |
| 5 | VCC (Positive Supply) | Primary power connection; supports 2.7–10 V operation with 2.8 mA typical quiescent current per amplifier. |
| 6 | Non-inverting input (Amplifier B) | Independent second channel input; identical electrical characteristics to Channel A. |
| 7 | Inverting input (Amplifier B) | Second channel differential input; fully isolated from Channel A except shared supply rails. |
| 8 | Output (Amplifier B) | Second rail-to-rail output; no internal cross-talk; supports independent feedback networks. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full-scale signal amplitude down to 100 mV from supply rails - essential for maximizing ADC input range in mixed-signal systems. |
| Ultra-low distortion | 0.003 % THD at 1 kHz enables clean signal amplification in line-out and headphone driver stages without post-filtering. |
| Very low input voltage noise | 4 nV/√Hz allows use in high-gain microphone preamplifiers without requiring additional noise-cancelling circuitry. |
| High slew rate & bandwidth | 4 V/µs slew rate and 12 MHz GBW support wideband active filters and fast-settling sensor signal chains. |
| Wide supply range | 2.7–10 V operation accommodates Li-ion, USB, and industrial 5 V/9 V rails without external regulators. |
Applications
| Portable Audio Preamp | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Amplifying low-level microphone or piezoelectric sensor outputs in handheld recorders and voice-controlled devices. IC Role / Device Role / Timing Role: Dual-channel voltage amplifier with rail-to-rail output driving ADC input or analog audio codec interface. Use Value: 4 nV/√Hz noise floor and 0.003 % THD preserve acoustic detail; DFN8 footprint saves >50 % board area vs. SO8 alternatives. |
Use Scenario: Conditioning thermocouple, strain gauge, or RTD signals in field-mounted data loggers and PLC I/O modules. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with high CMRR (85 dB) and wide input common-mode range. Use Value: Input offset drift of only 5 µV/°C minimizes calibration frequency; 125 °C max operating temperature supports harsh environments. |
| Professional Line-Level Driver | Battery-Powered Medical Instrumentation |
|
Use Scenario: Driving balanced/unbalanced line outputs in portable mixers, audio interfaces, and studio monitors. IC Role / Device Role / Timing Role: Low-distortion buffer and level-shifter between DAC output and connector interface. Use Value: Rail-to-rail swing ensures full ±2 V output compliance on 5 V supply; 2.8 mA/quiescent current extends runtime in USB-powered gear. |
Use Scenario: Amplifying ECG, EEG, or pulse oximeter analog front-ends in wearable diagnostic devices. IC Role / Device Role / Timing Role: Low-noise, low-power biopotential amplifier stage with ESD-hardened inputs (2 kV HBM). Use Value: 250 fA/√Hz current noise prevents electrode interface degradation; -40 °C to +125 °C rating covers clinical and ambulatory use cases. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-noise op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2134UA | Higher supply voltage (±18 V), higher noise (8 nV/√Hz), SO8-only packaging | Designed for AC-coupled studio-grade audio; lacks rail-to-rail output and low-voltage operation | Choose when high-voltage headroom and legacy SO8 compatibility outweigh noise and size constraints. |
| MCP6V82-E/SN | Zero-drift architecture, lower offset (10 µV), but higher noise (13 nV/√Hz), slower GBW (10 MHz) | Optimized for DC-coupled precision measurement, not wideband audio | Prefer for ultra-stable DC gain stages where offset drift dominates over noise performance. |
Compared with OPA2134UA and MCP6V82-E/SN, TS972IQT uniquely balances rail-to-rail output, 4 nV/√Hz noise, and DFN8 miniaturization - making it optimal for space-limited, battery-operated audio and sensor systems requiring both fidelity and efficiency.
Availability
TS972IQT is available at Aetrix Electronics and suitable for portable audio preamplification, industrial sensor signal conditioning, and battery-powered medical instrumentation requiring stable component supply and long-term manufacturability.
Supply support for TS972IQT 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, power ICs, sensors, and analog components for industrial, automotive, and consumer markets.
The TS97x series was developed specifically for low-voltage, low-noise analog signal processing in portable and battery-powered equipment - emphasizing rail-to-rail output, audio-grade fidelity, and compact packaging.
FAQ
What is the maximum junction temperature and thermal resistance of TS972IQT?
The TS972IQT has a maximum junction temperature of 150 °C and a junction-to-ambient thermal resistance of 40 °C/W in its DFN8 3×3 mm package. This enables reliable operation at full rated supply voltage and output load under natural convection, provided the exposed pad is soldered to a sufficient copper area.
Does TS972IQT support single-supply operation with ground-referenced inputs?
Yes - its input common-mode voltage range extends from VDD + 1.15 V to VCC − 1.15 V. With VDD = 0 V and VCC = 5 V, inputs operate from +1.15 V to +3.85 V, allowing use with ground-referenced signals via simple level-shifting resistors or AC coupling.
Is the exposed thermal pad on TS972IQT electrically connected?
No - the exposed pad on the TS972IQT DFN8 package is thermally conductive but electrically isolated. ST recommends connecting it to PCB ground plane solely for thermal enhancement; no electrical connection to any internal node is required or specified.
How does TS972IQT's 0.003 % THD compare to standard op-amps in audio applications?
At 1 kHz and 10 kΩ load, TS972IQT achieves 0.003 % THD - over 10× lower than typical general-purpose op-amps (e.g., LM358: ~0.05 %). This enables transparent amplification in line-level and headphone driver stages without audible harmonic artifacts or need for post-compensation filtering.
TS972IQT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 4V/µs
- Gain Bandwidth Product:
- 12 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 200 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 2mA (x2 Channels)
- Current - Output / Channel:
- 100 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 10 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (3x3)
TS972IQT FAQ
1.How can I place an order for TS972IQT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS972IQT 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 TS972IQT reliable?
The price and inventory of TS972IQT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS972IQT is usually 5 days.
3.What payment methods are accepted for TS972IQT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS972IQT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS972IQT?
TS972IQT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS972IQT 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 TS972IQT?
For technical support, including TS972IQT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS972IQT requirements.
6.How does Aetrix verify that TS972IQT is sourced from the original manufacturer or authorized distributors?
All TS972IQT 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 TS972IQT meets industry standards.
7.What is the process for return or replacement of TS972IQT?
All TS972IQT units undergo pre-shipment inspection (PSI). If there is an issue with TS972IQT, 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 TS972IQT part is unused and in its original packaging.
Return procedure for TS972IQT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TS972IQT Tags
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LM358DT
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