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

STMicroelectronics TS924IDT

Name: TS924IDT
Brand: STMicroelectronics
SKU: TS924IDT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS924IDT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

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

Datasheet:: TS924IDT.pdf

Description:: IC OPAMP GP 4 CIRCUIT 14SO

Quantity:: RFQ Add To RFQ list

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Inventory:13,225

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Product details

Overview

TS924IDT from STMicroelectronics is a rail-to-rail input/output quad operational amplifier optimized for 3 V and 5 V battery-powered audio systems, featuring 4 MHz gain bandwidth, 1.3 V/µs slew rate, 9 nV/√Hz input voltage noise, 80 mA output drive capability into 32 Ω loads, and ±0.9 mV max input offset voltage (TS924A grade).

For engineers reviewing the TS924IDT datasheet, TS924IDT pinout, TS924IDT application, or TS924IDT equivalent, this device is selected for low-noise, high-output-current, rail-to-rail audio buffering and driving in space-constrained, low-voltage embedded systems requiring stable DC precision and wide dynamic range.

Technical Context

The TS924IDT employs 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 under 32 Ω load. Its 4 MHz unity-gain bandwidth and 68° phase margin ensure stability with capacitive loads up to 500 pF.

It delivers 80 mA short-circuit output current per amplifier, supports single-supply operation from 2.7 V to 12 V, and maintains 0.005% THD at 1 kHz with 600 Ω load - critical for fidelity-sensitive headphone and piezoelectric driver applications.

Key Specifications

Parameter	Value and Actual Design Meaning
Gain Bandwidth Product	4 MHz - enables stable unity-gain buffer configurations up to audio band with minimal phase lag.
Slew Rate	1.3 V/µs - supports full-scale 20 kHz sine wave output at ≥2.5 V_pk without slew-induced distortion.
Input Voltage Noise	9 nV/√Hz at 1 kHz - preserves signal integrity in low-level microphone preamp and sensor interface stages.
Output Drive Current	80 mA per channel - directly drives 32 Ω headphones or piezoelectric speakers without external boost circuitry.
Input Offset Voltage	≤0.9 mV (TS924A grade) - minimizes DC error in precision instrumentation and active filter DC biasing.
Supply Voltage Range	2.7 V to 12 V - compatible with single-cell Li-ion (3.0–4.2 V), dual-cell alkaline (3.0 V), and 5 V logic rails.
THD + Noise	0.005% at 1 kHz, 600 Ω load - meets high-fidelity audio requirements for sound cards and MPEG boards.

Pinout & Package

TS924IDT is supplied in SO14 (plastic small outline) package, 8.55–8.75 mm body length, 1.27 mm lead pitch, ECOPACK®-compliant, RoHS-compliant, and rated for –40 °C to +125 °C operating temperature.

Pin/Terminal	Circuit Role	Design Meaning
1, 5, 9, 12	Inverting Input (A, B, C, D)	High-impedance differential node; accepts signals down to V_CC– – 0.2 V with rail-to-rail CMR.
2, 6, 10, 13	Non-inverting Input (A, B, C, D)	BiCMOS input stage enables low input bias current (15–100 nA) and rail-to-rail common-mode range.
3, 7, 11, 14	Output (A, B, C, D)	Rail-to-rail swing (within 100 mV of rails) into 32 Ω; capable of sourcing/sinking 80 mA continuously.
4	V_CC+	Positive supply terminal; supports 2.7–12 V operation; decoupling capacitor required near pin.
8	V_CC–	Negative supply / ground reference; must be connected to system ground in single-supply configurations.

Key Features

Feature	Design Value
Rail-to-rail input and output	Enables full dynamic range utilization in 3 V systems; eliminates level-shifting circuitry in portable audio.
Low noise (9 nV/√Hz)	Reduces audible hiss in headphone amplifiers and improves SNR in low-amplitude sensor signal conditioning.
High output current (80 mA)	Drives low-impedance transducers (e.g., 32 Ω earphones, piezo elements) without external power stages.
Stable with 500 pF capacitive load	Permits direct connection to long PCB traces or cables without external compensation or isolation resistors.
ESD protection (3 kV HBM)	Enhances robustness during board assembly and end-user handling in consumer electronics environments.

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 line drivers with rail-to-rail output swing and low THD.

Use Value: Delivers >100 mW/channel into 32 Ω with <0.005% THD, eliminating need for discrete output transistors or dedicated audio SoCs.

Use Scenario: Generating high-voltage, low-current drive signals for ultrasonic piezoelectric transducers in proximity sensors or haptic feedback modules.

IC Role / Device Role / Timing Role: Single amplifier used in non-inverting configuration with gain ≥10 to amplify MCU PWM or DAC outputs to ±1.5 V swing.

Use Value: 1.3 V/µs slew rate ensures fast edge response for precise pulse timing; 80 mA peak current sustains transient piezo charging demands.

Sound Card Line Driver

Multimedia System Buffer

Use Scenario: Providing low-distortion, high-isolation analog line outputs on PC sound cards interfacing with powered speakers or recording equipment.

IC Role / Device Role / Timing Role: Dual-channel buffer with 120 dB channel separation and 60 dB CMRR to reject ground-loop noise and crosstalk.

Use Value: 0.005% THD at 1 kHz and 120 dB channel separation preserve stereo imaging fidelity and prevent inter-channel leakage in multi-track playback.

Use Scenario: Isolating and scaling analog sensor outputs (e.g., temperature, light) before ADC sampling in smart TV or set-top box mainboards.

IC Role / Device Role / Timing Role: Quad amplifier used for simultaneous signal conditioning: two for sensor buffering, one for reference voltage generation, one for active filtering.

Use Value: Low 900 µV max input offset and 2 µV/°C drift minimize calibration drift over temperature; rail-to-rail I/O simplifies level alignment with 3.3 V ADC inputs.

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
TS924IPT	TSSOP14 package (4.9 × 6.4 mm), thinner profile, higher thermal resistance (100 °C/W vs. 66 °C/W).	Better suited for ultra-thin portable designs where PCB area is constrained but thermal dissipation is managed externally.	Select when board height is limited and layout allows adequate copper pour for heat spreading.
TS922IDT	Dual-channel version, identical electrical specs, SO8 package, lower quiescent current (1.2 mA per op-amp vs. 1.5 mA).	Preferred for cost- and space-sensitive dual-channel applications (e.g., stereo preamp) where quad functionality is unnecessary.	Choose when only two amplifiers are needed and footprint reduction outweighs channel count flexibility.

Compared with TS924IPT, TS924IDT offers superior thermal performance in SO14 for sustained 80 mA output; compared with TS922IDT, it provides two additional channels in same package family-enabling consolidated signal routing and reduced BOM count in multi-function audio subsystems.

Availability

TS924IDT is available at Aetrix Electronics and suitable for headphone amplifiers, piezoelectric speaker drivers, and multimedia system buffers requiring stable component supply across industrial, consumer, and embedded design cycles.

Supply support for TS924IDT 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 high-fidelity, low-voltage audio signal conditioning - emphasizing rail-to-rail operation, low noise, and robust output drive in compact packages for portable and battery-powered systems.

FAQ

Is TS924IDT suitable for single-supply 3.3 V operation?

Yes. TS924IDT operates from 2.7 V to 12 V and features rail-to-rail input and output stages, enabling full-swing operation from 0 V to 3.3 V with typical output swing within 100 mV of each rail at 32 Ω load. Input common-mode range extends to V_CC– – 0.2 V, supporting direct connection to ground-referenced sources.

What is the maximum capacitive load the TS924IDT can drive without oscillation?

The TS924IDT is specified stable for capacitive loads up to 500 pF with no external compensation required. This is verified by 68° phase margin at unity gain with 100 pF load and CL = 500 pF test conditions in the datasheet. For loads exceeding 500 pF, a series isolation resistor (e.g., 10–47 Ω) is recommended at the output.

Does TS924IDT include ESD protection on all pins?

Yes. TS924IDT incorporates internal ESD protection rated at 3 kV per Human Body Model (HBM) on all pins, as confirmed in Table 1 of the datasheet. It also meets 100 V Machine Model (MM) and 1.5 kV Charged Device Model (CDM) for SO14 package, ensuring robustness during handling and PCB assembly.

How does TS924A differ from TS924 in input offset voltage?

The TS924A grade guarantees a maximum input offset voltage of 0.9 mV over the full temperature range (–40 °C to +125 °C), whereas the standard TS924 grade specifies 3 mV max. Both share identical noise, bandwidth, output current, and package options - making TS924A preferred for precision DC-coupled applications like active filters or sensor front-ends.

TS924IDT 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:: 3 mV

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

TS924IDT FAQ

1.How can I place an order for TS924IDT through Aetrix?

Please submit a Request for Quotation (RFQ) for TS924IDT 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 TS924IDT reliable?

The price and inventory of TS924IDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS924IDT is usually 5 days.

3.What payment methods are accepted for TS924IDT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS924IDT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS924IDT?

TS924IDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS924IDT 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 TS924IDT?

For technical support, including TS924IDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS924IDT requirements.

6.How does Aetrix verify that TS924IDT is sourced from the original manufacturer or authorized distributors?

All TS924IDT 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 TS924IDT meets industry standards.

7.What is the process for return or replacement of TS924IDT?

All TS924IDT units undergo pre-shipment inspection (PSI). If there is an issue with TS924IDT, 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 TS924IDT part is unused and in its original packaging.

Return procedure for TS924IDT:

1.Submit a request within 90 days.

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

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