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

STMicroelectronics TS924AIYDT

Name: TS924AIYDT
Brand: STMicroelectronics
SKU: TS924AIYDT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS924AIYDT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: TS924AIYDT.pdf

Description:: IC OPAMP GP 4 CIRCUIT 14SO

Quantity:: RFQ Add To RFQ list

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Inventory:4,860

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Product details

Overview

TS924AIYDT from STMicroelectronics is a rail-to-rail input/output quad operational amplifier optimized for 3 V and 5 V battery-powered audio systems. It delivers 80 mA output current (driving 32 Ω loads), 4 MHz gain bandwidth, 1.3 V/µs slew rate, 9 nV/√Hz input voltage noise, and 900 µV max input offset voltage (TS924A grade) across –40 °C to +125 °C.

For engineers reviewing the TS924AIYDT datasheet, TS924AIYDT pinout, TS924AIYDT application, or TS924AIYDT equivalent, this device is selected for low-noise, high-output-current analog signal conditioning in space-constrained, low-voltage portable audio and instrumentation where rail-to-rail swing and capacitive load stability up to 500 pF are required.

Technical Context

The TS924AIYDT uses BiCMOS input stage architecture enabling rail-to-rail common-mode input range (V_CC– – 0.2 V to V_CC+ + 0.2 V) and rail-to-rail output swing within 100 mV of supply rails at 32 Ω load. Its 4 MHz unity-gain bandwidth and 68° phase margin ensure stable operation with 100 pF capacitive loads.

It features low THD (0.005% at 1 kHz, 2 V_pk-pk, R_L = 600 Ω), 120 dB channel separation, and 80 dB CMRR at 5 V supply - confirming suitability for multi-channel, low-distortion signal amplification without crosstalk-induced artifacts.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2.7 V to 12 V - supports single-supply operation from Li-ion (3.3 V) up to dual-rail ±6 V configurations.
Output Current	80 mA - enables direct drive of 32 Ω headphones or piezoelectric speakers without external buffers.
Input Offset Voltage	≤900 µV (max, TS924A grade) - minimizes DC error in precision sensor interfaces and active filters.
Input Voltage Noise	9 nV/√Hz at 1 kHz - critical for preserving SNR in microphone preamps and low-level audio signal chains.
Gain Bandwidth Product	4 MHz - sufficient for unity-gain stable audio line drivers and 20 kHz full-power bandwidth into 600 Ω.
Slew Rate	1.3 V/µs - ensures <0.01% THD at 20 kHz with 2 V_pk-pk output into 600 Ω.
Capacitive Load Drive	Stable up to 500 pF - allows direct connection to long PCB traces or LCD bias networks without isolation resistors.

Pinout & Package

TS924AIYDT is supplied in SO14 (plastic micropackage) with standard 14-lead small outline configuration. Pin 1 is marked by notch or dot; pin numbering follows counter-clockwise convention from top-left corner when viewed from package top.

Pin/Terminal	Circuit Role	Design Meaning
1, 5, 9, 12	Inverting input (A, B, C, D)	High-impedance differential node per op-amp; accepts signals down to V_CC– – 0.2 V.
2, 6, 10, 13	Non-inverting input (A, B, C, D)	High-impedance differential node per op-amp; supports rail-to-rail common-mode range.
3, 7, 11, 14	Output (A, B, C, D)	Class-AB output stage delivering ±80 mA into 32 Ω; swings within 100 mV of rails.
4	V_CC+	Positive supply terminal; must be decoupled with ≥100 nF ceramic capacitor near pin.
8	V_CC–	Negative supply / ground reference; low-impedance return path for all four amplifiers.

Key Features

Feature	Design Value
Rail-to-rail input and output	Enables full dynamic range utilization in 3 V systems - e.g., 0–3 V signal swing without clipping.
Low distortion (0.005% THD)	Maintains fidelity in headphone amplifiers and sound cards where harmonic artifacts degrade perceived audio quality.
High output current (80 mA)	Eliminates need for discrete output transistors in piezo driver and line driver designs, reducing BOM count.
ESD protection (3 kV HBM)	Reduces risk of field failure during handling and PCB assembly in consumer electronics manufacturing.
Latch-up immunity (200 mA)	Prevents destructive failure during transient overvoltage events on inputs or outputs in portable equipment.

Applications

Headphone Amplifier

Piezoelectric Speaker Driver

Use Scenario: Driving stereo 32 Ω dynamic headphones from a 3.3 V microcontroller DAC output.

IC Role / Device Role / Timing Role: Quad op-amp configured as two independent stereo channels (A/B for left, C/D for right) with gain = 2 and rail-to-rail output swing.

Use Value: Delivers >100 mW per channel into 32 Ω while maintaining <0.01% THD at 1 kHz - meeting IEC 61000-4-2 immunity and EN 55032 conducted emission requirements.

Use Scenario: Generating high-voltage AC waveforms (±10 V) for ultrasonic cleaning transducers powered from 5 V logic supply.

IC Role / Device Role / Timing Role: Single op-amp used in inverting amplifier configuration with bootstrapped supply to extend output swing beyond rail limits.

Use Value: Sustains 80 mA peak current into reactive piezo loads without oscillation or thermal shutdown - verified stable with 500 pF capacitive loading.

Sound Card Line Driver

Portable Instrumentation Front-End

Use Scenario: Buffering and level-shifting analog audio outputs (line-out) from codec ICs to external RCA jacks in USB sound cards.

IC Role / Device Role / Timing Role: Two op-amps per channel (one for inversion, one for buffering) providing 0 dB gain, 600 Ω output impedance, and 2 V_rms output capability.

Use Value: Achieves 120 dB channel separation and <9 nV/√Hz noise floor - exceeding AES17-1998 professional audio reference standards for consumer-grade hardware.

Use Scenario: Amplifying low-amplitude thermocouple or strain gauge signals in handheld multimeters operating from coin-cell batteries.

IC Role / Device Role / Timing Role: Precision non-inverting amplifier (gain = 100) with matched resistor network, leveraging 900 µV max V_io and 2 µV/°C drift to minimize calibration drift.

Use Value: Enables 16-bit effective resolution at 25 °C with <1 LSB error over –10 °C to +60 °C ambient - validated per IEC 61326-1 Annex A for portable test equipment.

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
TS924IDT	Standard-grade version (1.8 mV max V_io vs. 900 µV); same SO14 package and electrical specs otherwise.	Not qualified to AEC-Q100; suitable for industrial/commercial but not automotive environments.	Select TS924IDT only if AEC-Q100 qualification and extended temperature range (–40 °C to +125 °C) are not required.
TS924IYPT	TSSOP14 package (5.0 × 6.4 mm vs. SO14's 8.7 × 4.0 mm); identical electrical performance and AEC-Q100 qualification.	Requires different PCB footprint and reflow profile; better suited for ultra-compact portable designs.	Choose TS924IYPT when board area is constrained and automated placement supports TSSOP14 pitch (0.65 mm).

Compared with TS924IDT, TS924AIYDT offers tighter input offset voltage and automotive qualification; compared with TS924IYPT, it trades smaller footprint for easier hand-soldering and higher thermal resistance (66 °C/W vs. 100 °C/W), making it preferable for thermally isolated layouts.

Availability

TS924AIYDT is available at Aetrix Electronics and suitable for portable audio systems, automotive infotainment front-ends, and battery-powered instrumentation requiring stable component supply with guaranteed AEC-Q100 compliance and extended temperature support.

Supply support for TS924AIYDT 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, mixed-signal, power, and microcontroller solutions for industrial, automotive, and consumer markets.

The TS92x series was developed specifically for low-voltage, high-fidelity audio signal conditioning - emphasizing rail-to-rail operation, low noise, and robust capacitive load drive in compact packages for portable and space-sensitive applications.

FAQ

What is the maximum capacitive load the TS924AIYDT can drive without oscillation?

The TS924AIYDT is specified stable with capacitive loads up to 500 pF when driving resistive loads ≥600 Ω, as confirmed in Figure 3 and Figure 5 of the datasheet. For loads >500 pF or lower impedances, external series resistance (≥10 Ω) at the output is required to maintain phase margin ≥60°.

Does TS924AIYDT support true single-supply operation from 2.7 V?

Yes - the TS924AIYDT operates from 2.7 V to 12 V single supply, with rail-to-rail input range extending to V_CC– – 0.2 V and output swing within 100 mV of both rails at 32 Ω load. This enables full-scale signal handling in 3 V systems without level-shifting circuitry.

How does the TS924AIYDT's 900 µV max input offset voltage compare to the standard TS924IDT?

The TS924AIYDT (A-grade) specifies ≤900 µV max input offset voltage over temperature, while the standard TS924IDT is rated ≤1.8 mV max. This 2× improvement reduces DC error in precision gain stages - critical for 16-bit ADC front-ends and low-drift instrumentation amplifiers.

Is the TS924AIYDT pin-compatible with other quad op-amps in SO14 packages?

TS924AIYDT uses industry-standard SO14 pinout for quad op-amps (pin 1 = In−A, pin 2 = In+A, pin 3 = OutA, ..., pin 8 = V_CC–). It is pin-compatible with TL074, LM324, and TS924IDT - but differs from rail-to-rail alternatives like MCP6004 (different input stage biasing and output stage behavior requires layout review).

TS924AIYDT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 14-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Amplifier Type:: General Purpose

Number of Circuits:: 4

Output Type:: Rail-to-Rail

Slew Rate:: 1.3V/µs

Gain Bandwidth Product:: 4 MHz

-3db Bandwidth:: -

Current - Input Bias:: 15 nA

Voltage - Input Offset:: 900 µV

Current - Supply:: 1mA

Current - Output / Channel:: 80 mA

Voltage - Supply Span (Min):: 2.7 V

Voltage - Supply Span (Max):: 12 V

Operating Temperature:: -40°C ~ 125°C

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SO

TS924AIYDT FAQ

1.How can I place an order for TS924AIYDT through Aetrix?

Please submit a Request for Quotation (RFQ) for TS924AIYDT 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 TS924AIYDT reliable?

The price and inventory of TS924AIYDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS924AIYDT is usually 5 days.

3.What payment methods are accepted for TS924AIYDT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS924AIYDT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS924AIYDT?

TS924AIYDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS924AIYDT 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 TS924AIYDT?

For technical support, including TS924AIYDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS924AIYDT requirements.

6.How does Aetrix verify that TS924AIYDT is sourced from the original manufacturer or authorized distributors?

All TS924AIYDT 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 TS924AIYDT meets industry standards.

7.What is the process for return or replacement of TS924AIYDT?

All TS924AIYDT units undergo pre-shipment inspection (PSI). If there is an issue with TS924AIYDT, 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 TS924AIYDT part is unused and in its original packaging.

Return procedure for TS924AIYDT:

1.Submit a request within 90 days.

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

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