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

STMicroelectronics TS924IYDT

Name: TS924IYDT
Brand: STMicroelectronics
SKU: TS924IYDT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS924IYDT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

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

Datasheet:: TS924IYDT.pdf

Description:: IC OPAMP GP 4 CIRCUIT 14SO

Quantity:: RFQ Add To RFQ list

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Inventory:2,358

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Product details

Overview

TS924IYDT from STMicroelectronics is a rail-to-rail input/output quad operational amplifier optimized for 3 V and 5 V battery-powered audio systems, delivering 80 mA output current per channel, 4 MHz gain bandwidth, 1.3 V/µs slew rate, and 9 nV/√Hz input voltage noise at 1 kHz.

For engineers reviewing the TS924IYDT datasheet, TS924IYDT pinout, TS924IYDT application, or TS924IYDT equivalent, this device supports low-noise headphone amplification, piezoelectric speaker driving, line buffering in MPEG boards, and low-voltage instrumentation where rail-to-rail swing and high capacitive load stability (up to 500 pF) are critical.

Technical Context

The TS924IYDT 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 stable operation with 600 Ω loads and 100 pF capacitive compensation.

It achieves 0.005% THD at 1 kHz with 2 V_pk-pk output into 600 Ω, 120 dB channel separation, and ±1 kV charged-device-model ESD protection - all while drawing only 1.5 mA per amplifier at 2.7–12 V supply.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2.7 V to 12 V - enables direct integration into single-supply 3.3 V and 5 V systems without level-shifting.
Output Current	80 mA per channel - drives 32 Ω headphones or piezo elements without external buffers.
Gain Bandwidth Product	4 MHz - supports audio bandwidth extension beyond 20 kHz with adequate phase margin.
Slew Rate	1.3 V/µs - preserves transient fidelity in 10 V_pp audio signals up to ~200 kHz.
Input Voltage Noise	9 nV/√Hz at 1 kHz - minimizes audible hiss in low-gain, high-impedance sensor interfaces.
Input Offset Voltage (TS924A)	≤ 900 µV max - reduces DC error in precision DC-coupled signal chains and active filters.
Capacitive Load Drive	Stable up to 500 pF - eliminates need for isolation resistors when driving ADC inputs or long cables.

Pinout & Package

TS924IYDT is supplied in SO14 (plastic micropackage), a 14-pin small-outline integrated circuit with 1.27 mm pitch, 8.55–8.75 mm body length, and 3.80–4.00 mm body width - qualified for automotive-grade AEC-Q100 operation.

Pin/Terminal	Circuit Role	Design Meaning
1, 5, 9, 12	Inverting input (A, B, C, D)	Accepts differential signal reference; rail-to-rail common-mode range supports single-supply biasing at mid-rail.
2, 6, 10, 13	Non-inverting input (A, B, C, D)	Enables unity-gain buffer, non-inverting amplifier, or active filter configurations with full input swing.
3, 7, 11, 14	Output (A, B, C, D)	Delivers rail-to-rail swing and 80 mA sink/source - directly drives 32 Ω loads or feeds downstream stages.
4	V_CC+	Positive supply rail; accepts 2.7–12 V; decoupling required near pin for high-frequency stability.
8	V_CC–	Negative supply rail (GND in single-supply); referenced for all input/output voltage levels and bias currents.

Key Features

Feature	Design Value
Rail-to-rail input and output	Enables full dynamic range utilization in 3 V systems - no headroom loss at input or output stage.
Low distortion (0.005% THD)	Maintains signal integrity in audio paths without post-filtering; verified at 1 kHz, 2 V_pk-pk, R_L = 600 Ω.
High-speed + high-current combination	4 MHz GBW and 80 mA drive coexist - rare in rail-to-rail op-amps - enabling fast settling into low-Z loads.
ESD immunity (3 kV HBM)	Robust handling during PCB assembly and field operation without external protection diodes.
Macromodel included	SPICE model validated against key AC/DC specs - accelerates simulation of closed-loop stability and THD performance.

Applications

Headphone Amplifier

Piezoelectric Speaker Driver

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

IC Role / Device Role / Timing Role: Quad op-amp configured as two dual-channel I/V converters and buffers, delivering rail-to-rail swing and low noise.

Use Value: 80 mA per channel eliminates need for discrete output transistors; 9 nV/√Hz ensures <65 dB(A) noise floor.

Use Scenario: Driving high-impedance piezoelectric buzzers in automotive door modules requiring crisp alert tones.

IC Role / Device Role / Timing Role: Single-channel configured as high-slew-rate voltage amplifier with fast rise/fall times for pulse-driven excitation.

Use Value: 1.3 V/µs slew rate enables <10 µs edge transitions; 500 pF stability allows direct connection to piezo capacitance.

Sound Card Line Driver

Low-Noise Instrumentation Amplifier

Use Scenario: Buffering analog outputs on PC sound cards to drive 600 Ω professional audio equipment.

IC Role / Device Role / Timing Role: Unity-gain buffer per channel with 120 dB channel separation to prevent crosstalk between stereo channels.

Use Value: 4 MHz bandwidth preserves harmonic content beyond 20 kHz; rail-to-rail output avoids clipping at ±2.5 V signal peaks.

Use Scenario: Front-end amplification of thermocouple or strain gauge signals in industrial data loggers operating from 3.3 V batteries.

IC Role / Device Role / Timing Role: First-stage non-inverting amplifier with 900 µV max offset (TS924A variant) and 60 dB CMRR over 0–5 V common-mode range.

Use Value: Low 2 µV/°C drift minimizes thermal drift error; 9 nV/√Hz noise maintains >80 dB SNR in 10 Hz–1 kHz band.

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	Industrial-grade SO14 version; same electrical specs but rated for −40 °C to +125 °C without AEC-Q100 qualification.	Lacks automotive qualification; suitable for commercial/industrial audio and instrumentation where extended temperature is not mandated.	Select TS924IDT for cost-sensitive non-automotive designs requiring identical performance without automotive screening.
TS924IPT	TSSOP14 package (5.0 × 6.4 mm); same die, thinner profile, finer 0.65 mm pitch - requires tighter layout control.	Better suited for space-constrained portable devices; thermal resistance higher (100 °C/W vs. 66 °C/W for SO14).	Choose TS924IPT when board area is constrained and thermal management via copper pour compensates for higher R_θJA.

Compared with TS924IDT and TS924IPT, TS924IYDT provides AEC-Q100 automotive qualification in SO14 - offering traceable lot control, enhanced ESD robustness, and guaranteed operation across −40 °C to +125 °C - making it the sole choice for infotainment and body electronics where reliability certification is mandatory.

Availability

TS924IYDT is available at Aetrix Electronics and suitable for automotive infotainment systems, portable audio equipment, industrial data acquisition modules, and medical monitoring devices requiring stable component supply with full AEC-Q100 compliance and traceable sourcing.

Supply support for TS924IYDT 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, microcontroller, power, and sensor solutions for automotive, industrial, and consumer markets.

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

FAQ

Is TS924IYDT pin-compatible with TS924IDT and TS924IPT?

Yes - all three share identical pinout per SO14 and TSSOP14 footprints: pins 1–14 map identically for inverting inputs, non-inverting inputs, outputs, and supplies. Mechanical differences (package thickness, pitch, thermal pad) require separate land patterns, but schematic symbols and net connectivity remain unchanged.

What is the maximum capacitive load TS924IYDT can drive without oscillation?

TS924IYDT remains stable with capacitive loads up to 500 pF when configured as a unity-gain buffer, as confirmed in the datasheet's Figure 3 and Table 3 notes. For loads exceeding 500 pF, a series isolation resistor (≥10 Ω) between output and capacitance is required to maintain ≥45° phase margin.

Does TS924IYDT support true split-supply operation (e.g., ±2.5 V)?

Yes - the device operates with symmetric supplies from ±1.35 V to ±6 V (total 2.7–12 V). The common-mode input range extends to V_CC– − 0.2 V and V_CC+ + 0.2 V, and output swings within 100 mV of either rail, enabling bipolar signal processing without level-shifting circuitry.

How does the TS924A variant differ from TS924 in offset voltage performance?

The TS924A guarantees ≤900 µV maximum input offset voltage across −40 °C to +125 °C, versus ≤1.8 mV for standard TS924. This 2× improvement enables DC-coupled applications like active filters and sensor front-ends where offset-induced baseline drift must be minimized without trimming.

TS924IYDT 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

TS924IYDT FAQ

1.How can I place an order for TS924IYDT through Aetrix?

Please submit a Request for Quotation (RFQ) for TS924IYDT 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 TS924IYDT reliable?

The price and inventory of TS924IYDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS924IYDT is usually 5 days.

3.What payment methods are accepted for TS924IYDT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS924IYDT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS924IYDT?

TS924IYDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS924IYDT 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 TS924IYDT?

For technical support, including TS924IYDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS924IYDT requirements.

6.How does Aetrix verify that TS924IYDT is sourced from the original manufacturer or authorized distributors?

All TS924IYDT 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 TS924IYDT meets industry standards.

7.What is the process for return or replacement of TS924IYDT?

All TS924IYDT units undergo pre-shipment inspection (PSI). If there is an issue with TS924IYDT, 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 TS924IYDT part is unused and in its original packaging.

Return procedure for TS924IYDT:

1.Submit a request within 90 days.

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

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