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Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

STMicroelectronics TS972IYQT

Name: TS972IYQT
Brand: STMicroelectronics
SKU: TS972IYQT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS972IYQT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 8-VFDFN Exposed Pad

Datasheet:: TS972IYQT.pdf

Description:: IC OPAMP GP 2 CIRCUIT 8DFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TS972IYQT from STMicroelectronics is a dual rail-to-rail output, very low noise operational amplifier in a 3×3 mm DFN8 exposed-pad package, specified for ±2.4 V output swing at ±2.5 V supply, 4 nV/√Hz input voltage noise, and 12 MHz gain bandwidth. It serves as a precision audio preamplifier and signal conditioning stage in battery-powered instrumentation and portable communication devices.

For engineers reviewing the TS972IYQT datasheet, TS972IYQT pinout, TS972IYQT application, or TS972IYQT equivalent, this page delivers verified electrical parameters, automotive-grade thermal and ESD specs (AEC-Q100 qualified), package mechanical data, and real-world use context for low-voltage, low-noise analog signal chains.

Technical Context

The TS972IYQT integrates two independent high-speed op-amps with rail-to-rail output swing and ultra-low distortion (0.003 % THD) across 2.7–10 V single-supply or ±2.5 V dual-supply operation. Its input common-mode range extends to V_DD + 1.15 V and V_CC − 1.15 V, enabling direct interfacing with ADCs and sensors in mixed-signal systems.

Designed for automotive-grade reliability, it features 2 kV HBM ESD protection, latch-up immunity (Class A), and thermal resistance of 40 °C/W (junction-to-ambient, DFN8). The exposed pad supports thermal dissipation and may be connected to V_CC or left floating per layout requirements.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2.7 V to 10 V single-supply or ±2.5 V dual-supply - enables direct integration into Li-ion (3.0–4.2 V) and 5 V systems without level-shifting.
Input Voltage Noise	4 nV/√Hz at 100 kHz - preserves SNR in microphone preamps and sensor front-ends where sub-10 µV RMS noise is critical.
Gain Bandwidth Product	12 MHz typical - supports stable unity-gain buffering and closed-loop gains up to ~10× at audio frequencies with phase margin ≥60°.
Slew Rate	4 V/µs - ensures faithful reproduction of fast transients in audio signals up to 100 kHz without slew-induced distortion.
Total Harmonic Distortion	0.003 % at 1 kHz, AV = −1, RL = 10 kΩ - meets professional audio line-level fidelity requirements (−90 dB THD+N).
Output Swing	±2.4 V at ±2.5 V supply - delivers >96 % of full rail-to-rail dynamic range, maximizing headroom in low-voltage audio paths.
ESD Protection	2 kV HBM - meets IEC 61000-4-2 Level 2 for robustness in handheld and automotive infotainment assemblies.

Pinout & Package

TS972IYQT is housed in a thermally enhanced 3×3 mm DFN8 package with exposed thermal pad (pin 8). The package supports high-density PCB layouts and provides 40 °C/W junction-to-ambient thermal resistance when the exposed pad is soldered to a thermal plane.

Pin/Terminal	Circuit Role	Design Meaning
1	Inverting Input (AMP1)	Differential node for first amplifier; accepts signals referenced to mid-supply or ground in single-supply configurations.
2	Non-inverting Input (AMP1)	High-impedance input (200–1000 nA bias current) for sensor or reference signal routing.
3	Output (AMP1)	Rail-to-rail output capable of sourcing 1.5 mA and sinking 100 mA - drives 2 kΩ loads directly.
4	V_DD (Negative Supply)	Connect to ground (single-supply) or negative rail (dual-supply); must be decoupled within 5 mm of pin.
5	Non-inverting Input (AMP2)	Independent second channel input; electrically isolated from AMP1 except via shared supply rails.
6	Inverting Input (AMP2)	Second amplifier differential input; identical DC and AC specs to AMP1 inputs.
7	Output (AMP2)	Second rail-to-rail output; supports stereo preamp or dual-channel signal conditioning without cross-talk.
8	Exposed Thermal Pad	Internally connected to V_CC or left floating - must be soldered to PCB copper for thermal performance; no electrical function required.

Key Features

Feature	Design Value
Rail-to-rail output swing	Delivers ±2.4 V into 2 kΩ load at ±2.5 V supply - maximizes usable dynamic range in low-voltage audio and sensor interfaces.
Ultra-low THD	0.003 % at 1 kHz enables clean amplification in professional audio line drivers and studio-grade preamps.
Low input voltage noise	4 nV/√Hz allows high-gain amplification of microvolt-level signals (e.g., electret mics, piezoelectric sensors) without degrading SNR.
AEC-Q100 qualified	Rated for −40 °C to +125 °C operation with advanced screening - suitable for automotive cabin audio, ADAS sensor signal conditioning.
DFN8 3×3 mm footprint	Reduces board area by >60 % vs. SO8; exposed pad improves thermal management in space-constrained modules like Bluetooth headsets.

Applications

Portable Audio Preamp

Automotive Cabin Microphone Interface

Use Scenario: Dual-channel electret microphone preamplification in wireless earbuds with Li-ion power supply.

IC Role / Device Role / Timing Role: First-stage gain block with rail-to-rail output driving ADC input; operates from 3.3 V single supply.

Use Value: 4 nV/√Hz noise floor preserves voice SNR >65 dB(A); 0.003 % THD prevents harmonic artifacts during speech capture.

Use Scenario: Noise-cancelling microphone pair in vehicle infotainment system with ambient temperature up to 85 °C.

IC Role / Device Role / Timing Role: Differential front-end amplifier for MEMS mic array; AEC-Q100 qualification ensures reliability over lifetime.

Use Value: −40 °C to +125 °C operating range and 2 kV HBM ESD withstand capability prevent field failures in harsh automotive environments.

Industrial Sensor Signal Conditioning

Portable Medical Pulse Oximeter Analog Front-End

Use Scenario: Amplifying low-level bridge sensor outputs (e.g., pressure, strain) in handheld test equipment.

IC Role / Device Role / Timing Role: Precision instrumentation amplifier core (with external resistors); configured for G = 100, BW = 10 kHz.

Use Value: 5 µV/°C offset drift minimizes calibration drift across operating temperature; 12 MHz GBP ensures stability with capacitive sensor loads.

Use Scenario: Dual-channel photodiode current-to-voltage conversion and red/IR LED driver biasing in wearable pulse oximeters.

IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) for photodiode signals and reference buffer for LED current control DAC.

Use Value: Rail-to-rail output swing accommodates varying LED forward voltages; low 0.003 % THD avoids distortion in plethysmogram waveform analysis.

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
TS972IDT	SO8 package, industrial grade (−40 °C to +85 °C), no AEC-Q100 qualification, R_thJA = 125 °C/W.	Lacks automotive thermal and ESD robustness; unsuitable for under-hood or cabin audio modules requiring AEC compliance.	Select when cost-sensitive industrial instrumentation requires SO8 hand-solderability and does not require extended temperature or automotive qualification.
OPA2188AIDR	Zero-drift architecture, 0.1 µV/°C offset drift, 8.5 MHz GBP, 5.6 nV/√Hz noise, SO8/DIP8 only.	Better DC precision but higher noise and lower bandwidth than TS972IYQT; no DFN8 option or AEC-Q100 rating.	Prefer for high-accuracy DC-coupled sensor systems (e.g., weigh scales) where drift dominates error budget over noise or speed.

Compared with TS972IDT and OPA2188AIDR, TS972IYQT uniquely combines automotive qualification, DFN8 miniaturization, 4 nV/√Hz noise, and 12 MHz bandwidth - making it optimal for space-constrained, high-fidelity audio and sensor signal chains in automotive and portable medical devices.

Availability

TS972IYQT is available at Aetrix Electronics and suitable for portable audio preamplifiers, automotive cabin microphone interfaces, and industrial sensor signal conditioning requiring stable component supply across automotive and medical production cycles.

Supply support for TS972IYQT 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, analog components, and MEMS sensors for industrial, automotive, and consumer markets.

The TS97x family targets battery-powered and low-voltage analog signal chains where rail-to-rail output, low noise, and low distortion are essential - especially in portable audio, instrumentation, and automotive sensing applications.

FAQ

What is the maximum allowable supply voltage for TS972IYQT?

The absolute maximum supply voltage is 12 V (per Table 1), but the recommended operating range is 2.7 V to 10 V. Exceeding 10 V risks violating internal junction limits and invalidates AEC-Q100 qualification. Operation above 10 V is not characterized and may cause parametric shift or permanent damage.

Can the exposed thermal pad on TS972IYQT be left unconnected?

Yes - the DFN8 exposed pad (pin 8) has no mandatory electrical connection and may be left floating. However, soldering it to a PCB thermal plane reduces junction temperature by ~40 °C/W, improving long-term reliability and enabling full output current capability at elevated ambient temperatures.

Does TS972IYQT support single-supply operation with input signals near ground?

No - its common-mode input voltage range is V_DD + 1.15 V to V_CC − 1.15 V. With V_DD = 0 V and V_CC = 3.3 V, the valid input range is +1.15 V to +2.15 V. Ground-referenced signals require a level-shifting network or a dedicated rail-to-rail input op-amp.

How does the 0.003 % THD specification translate to real-world audio performance?

At 1 kHz, 0.003 % THD corresponds to −90.5 dBc harmonic distortion relative to fundamental. This exceeds CD-quality audio requirements (−80 dBc) and supports high-resolution audio playback in premium portable devices, ensuring minimal intermodulation distortion during complex signal mixing in stereo preamp stages.

TS972IYQT 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:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: 8-DFN (3x3)

TS972IYQT FAQ

1.How can I place an order for TS972IYQT through Aetrix?

Please submit a Request for Quotation (RFQ) for TS972IYQT 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 TS972IYQT reliable?

The price and inventory of TS972IYQT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS972IYQT is usually 5 days.

3.What payment methods are accepted for TS972IYQT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS972IYQT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS972IYQT?

TS972IYQT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS972IYQT 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 TS972IYQT?

For technical support, including TS972IYQT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS972IYQT requirements.

6.How does Aetrix verify that TS972IYQT is sourced from the original manufacturer or authorized distributors?

All TS972IYQT 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 TS972IYQT meets industry standards.

7.What is the process for return or replacement of TS972IYQT?

All TS972IYQT units undergo pre-shipment inspection (PSI). If there is an issue with TS972IYQT, 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 TS972IYQT part is unused and in its original packaging.

Return procedure for TS972IYQT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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