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

STMicroelectronics TS924AID

Name: TS924AID
Brand: STMicroelectronics
SKU: TS924AID
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS924AID

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

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

Datasheet:: TS924AID.pdf

Description:: IC OPAMP GP 4 CIRCUIT 14SO

Quantity:: RFQ Add To RFQ list

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Inventory:1,484

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Product details

Overview

TS924AID 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 noise, and 900 µV max input offset voltage (TS924A grade) across –40 °C to +125 °C.

For engineers reviewing the TS924AID datasheet, TS924AID pinout, TS924AID application, or TS924AID equivalent, this device is selected for low-noise, high-output-current, rail-to-rail analog signal conditioning in portable audio, instrumentation, and multimedia interfaces where supply headroom is constrained.

Technical Context

The TS924A uses BiCMOS process technology to achieve simultaneous rail-to-rail input common-mode range (V_CC– – 0.2 V to V_CC+ + 0.2 V) and rail-to-rail output swing (within 100 mV of rails at 32 Ω load). Its 4 MHz unity-gain bandwidth and 68° phase margin ensure stable operation with capacitive loads up to 500 pF.

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 3 V supply - enabling high-fidelity multi-channel amplification without crosstalk or distortion in compact PCB layouts.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2.7 V to 12 V - supports single-supply operation from Li-ion (3.0–3.7 V) up to dual-rail ±6 V configurations.
Input Offset Voltage (max)	900 µV - enables precision DC-coupled gain stages without significant output error at low gains.
Output Current (short-circuit)	80 mA - drives 32 Ω headphones directly without external buffer transistors.
Gain Bandwidth Product	4 MHz - supports audio bandwidth extension beyond 20 kHz with ≥20× closed-loop gain stability.
Input Voltage Noise Density	9 nV/√Hz at 1 kHz - preserves SNR in microphone preamps and piezo sensor interfaces.
THD + Noise	0.005% at 1 kHz - meets CD-quality audio fidelity requirements in line-level and headphone outputs.
Channel Separation	120 dB - prevents inter-channel leakage in stereo/multi-channel audio routing.

Pinout & Package

TS924AID is supplied in SO14 (plastic micropackage) with 14-pin wide-body outline per JEDEC MS-012. Pin 1 is marked by notch or dot; pin numbering follows standard counter-clockwise sequence from top view.

Pin/Terminal	Circuit Role	Design Meaning
1, 5, 9, 12	Inverting input (A, B, C, D)	Accepts feedback network connection for standard op-amp configurations (inverting amp, active filter).
2, 6, 10, 13	Non-inverting input (A, B, C, D)	Provides high-impedance reference point for non-inverting gain stages and voltage followers.
3, 7, 11, 14	Output (A, B, C, D)	Delivers rail-to-rail swing with 80 mA sourcing/sinking capability into low-Z loads.
4	V_CC+	Positive supply rail - must be decoupled with ≥100 nF ceramic capacitor near pin.
8	V_CC–	Negative supply rail or ground in single-supply mode - shared return path for all four amplifiers.

Key Features

Feature	Design Value
Rail-to-rail I/O	Input common-mode extends 0.2 V beyond rails; output swings within 100 mV of V_CC+/V_CC– at 32 Ω - maximizes dynamic range in 3 V systems.
High Output Drive	80 mA continuous per amplifier - eliminates need for discrete output buffers in headphone and piezo drivers.
Low Input Noise	9 nV/√Hz at 1 kHz - critical for preserving signal integrity in front-end amplification of weak sensors.
Stable with Capacitive Loads	Guaranteed stability up to 500 pF - allows direct driving of long cables or ADC input capacitance without compensation.
ESD Protection	3 kV HBM - enhances robustness during board assembly and end-user handling in consumer electronics.

Applications

Headphone Amplifier

Piezoelectric Speaker Driver

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

IC Role / Device Role / Timing Role: Quad op-amp configured as two independent stereo channels (each using two amplifiers for left/right), providing DC-coupled, low-distortion gain and output buffering.

Use Value: 80 mA output current enables full-voltage swing into 32 Ω without clipping; 0.005% THD ensures CD-grade audio reproduction.

Use Scenario: Exciting piezoelectric buzzer elements requiring high-voltage, low-current drive signals in smart home alarm panels.

IC Role / Device Role / Timing Role: Configured as high-slew-rate voltage follower to deliver fast transient response (1.3 V/µs) while matching piezo impedance.

Use Value: Rail-to-rail output swing maximizes acoustic output amplitude; 4 MHz bandwidth supports sharp-edged tone generation up to 20 kHz.

Sound Card Line Driver

Multimedia System Buffer

Use Scenario: Isolating and level-shifting analog audio signals between codec IC and external RCA jacks on PC sound cards.

IC Role / Device Role / Timing Role: Used as unity-gain buffer per channel to prevent source loading and maintain signal integrity over PCB traces.

Use Value: 120 dB channel separation prevents crosstalk between stereo channels; low 900 µV offset avoids audible DC pop at power-up.

Use Scenario: Interfacing MPEG decoder ICs to analog video/audio DACs in set-top boxes with tight board space constraints.

IC Role / Device Role / Timing Role: Provides gain and impedance transformation between digital audio subsystem and analog output stage.

Use Value: Single 3.3 V supply compatibility reduces power rail count; quad integration minimizes footprint versus discrete solutions.

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
TS924ID	Higher max input offset voltage (1.8 mV vs. 0.9 mV typ., 5 mV max) and wider V_io drift (2 µV/°C same); otherwise identical specs.	Suitable for cost-sensitive industrial signal conditioning where <1 mV offset not required.	Select TS924ID only when tighter offset spec is unnecessary and BOM cost reduction is prioritized.
TSX564IPT	Lower supply current (900 µA/op vs. 1.5 mA/op), smaller TSSOP14 package, but reduced output current (60 mA) and GBW (900 kHz).	Better for ultra-low-power sensor nodes; insufficient for 32 Ω headphone drive.	Choose TSX564IPT only for battery-life-critical, low-bandwidth applications - not for audio output stages.

Compared with TS924ID, TS924AID offers tighter offset and drift for precision audio gain stages; compared with TSX564IPT, it trades higher quiescent current for 3.3× higher bandwidth and 33% greater output drive - making it uniquely suited for high-fidelity, low-voltage audio output.

Availability

TS924AID is available at Aetrix Electronics and suitable for headphone amplifiers, piezoelectric speaker drivers, and multimedia system buffers requiring stable component supply across automotive-qualified temperature ranges (–40 °C to +125 °C).

Supply support for TS924AID 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 products for industrial, automotive, and consumer markets.

The TS92x series was developed specifically for low-voltage, high-output-current audio and instrumentation applications - emphasizing rail-to-rail performance, low noise, and robust capacitive-load stability in compact packages.

FAQ

What is the maximum capacitive load the TS924AID can drive stably?

The TS924AID is specified to remain stable with capacitive loads up to 500 pF without external compensation. This is validated under standard test conditions (V_CC = 3 V, R_L = 600 Ω, C_L = 100 pF), and confirmed via phase margin measurements of 68° at unity gain. Driving larger loads requires isolation resistors or feedback network adjustment.

Does TS924AID support true single-supply operation down to 2.7 V?

Yes - TS924AID operates from 2.7 V to 12 V with full rail-to-rail input and output functionality. At 2.7 V, it maintains 80 mA output current, 4 MHz GBW, and 900 µV max V_io across –40 °C to +125 °C, as verified in Tables 3 and 4 of the official datasheet (DocID5065 Rev 11).

Can TS924AID replace TS924ID in existing designs?

Yes - TS924AID is a direct functional and pin-compatible upgrade to TS924ID, offering improved input offset voltage (900 µV max vs. 5 mV max) and lower typical offset (0.9 mV vs. 3 mV). No layout or schematic changes are needed; only qualification testing for offset-sensitive circuits is recommended.

Is thermal derating required for continuous 80 mA output per channel?

At ambient 25 °C with SO14 package and no heatsink, continuous 80 mA per channel (320 mA total) raises junction temperature by ~21 °C (R_thJA = 66 °C/W × 0.32 W ≈ 21 °C), well below the 150 °C limit. Derating is only necessary above 105 °C ambient or with >400 mA total dissipation - verified per absolute maximum ratings Table 1.

TS924AID 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:: 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

TS924AID FAQ

1.How can I place an order for TS924AID through Aetrix?

Please submit a Request for Quotation (RFQ) for TS924AID 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 TS924AID reliable?

The price and inventory of TS924AID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS924AID is usually 5 days.

3.What payment methods are accepted for TS924AID?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS924AID transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS924AID?

TS924AID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS924AID 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 TS924AID?

For technical support, including TS924AID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS924AID requirements.

6.How does Aetrix verify that TS924AID is sourced from the original manufacturer or authorized distributors?

All TS924AID 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 TS924AID meets industry standards.

7.What is the process for return or replacement of TS924AID?

All TS924AID units undergo pre-shipment inspection (PSI). If there is an issue with TS924AID, 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 TS924AID part is unused and in its original packaging.

Return procedure for TS924AID:

1.Submit a request within 90 days.

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

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