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

STMicroelectronics TS924AIYPT

Name: TS924AIYPT
Brand: STMicroelectronics
SKU: TS924AIYPT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS924AIYPT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 14-TSSOP (0.173", 4.40mm Width)

Datasheet:: TS924AIYPT.pdf

Description:: IC OPAMP GP 4 CIRCUIT 14TSSOP

Quantity:: RFQ Add To RFQ list

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Inventory:3,890

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Product details

Overview

TS924AIYPT from STMicroelectronics is a rail-to-rail input/output quad BiCMOS 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 TS924AIYPT datasheet, TS924AIYPT pinout, TS924AIYPT application, or TS924AIYPT equivalent, this device is selected for low-noise, high-output-current, rail-to-rail audio buffering and driving in space-constrained portable systems requiring stable performance at 2.7–12 V supply.

Technical Context

The TS924AIYPT employs a BiCMOS input stage 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 each rail under 32 Ω load. Its 4 MHz unity-gain bandwidth and 68° phase margin ensure stability with capacitive loads up to 500 pF.

It features low distortion (0.005% THD at 1 kHz, 600 Ω), high channel separation (120 dB), and 80 mA short-circuit output current per amplifier-enabling direct drive of piezoelectric speakers, headphone loads, and line drivers without external buffers.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2.7 V to 12 V - supports single-supply operation in battery-powered 3 V/5 V systems without level-shifting.
Input Offset Voltage (max)	900 µV - ensures minimal DC error in precision DC-coupled audio paths and sensor signal conditioning.
Output Current (per op-amp)	80 mA - enables direct 32 Ω headphone or piezo speaker drive without external power stages.
Gain Bandwidth Product	4 MHz - provides sufficient bandwidth for wideband audio (20 Hz–20 kHz) with ≥20× closed-loop gain margin.
Input Voltage Noise	9 nV/√Hz at 1 kHz - preserves signal integrity in low-level microphone preamps and instrumentation front-ends.
Slew Rate	1.3 V/µs - supports full-scale 2 V_pk-pk output at 100 kHz without slew-induced distortion.
Common-Mode Rejection	56 dB min (–40 °C to +125 °C) - maintains accuracy in noisy industrial or automotive environments.

Pinout & Package

TSSOP14 (Thin Shrink Small Outline Package), 4.9 mm × 6.4 mm footprint, 0.65 mm pitch, lead-free, automotive-grade qualification per AEC-Q100.

Pin/Terminal	Circuit Role	Design Meaning
1, 5, 9, 12	Inverting Input (A/B/C/D)	High-impedance differential input node for each op-amp; accepts rail-to-rail common-mode signals.
2, 6, 10, 13	Non-inverting Input (A/B/C/D)	High-impedance differential input node; matched to inverting input for balanced feedback design.
3, 7, 11, 14	Output (A/B/C/D)	Capable of sourcing/sinking 80 mA; swings within 100 mV of rails into 32 Ω load.
4	V_CC+	Positive supply terminal; must be decoupled locally to minimize noise coupling between amplifiers.
8	V_CC–	Negative supply (ground reference in single-supply); shared return path for all four amplifiers.

Key Features

Feature	Design Value
Rail-to-rail input and output	Enables full dynamic range utilization in low-voltage (3 V) systems without input/output headroom loss.
80 mA output current per channel	Eliminates need for external output transistors when driving 32 Ω headphones or piezo elements.
9 nV/√Hz input voltage noise	Preserves SNR in low-amplitude audio and sensor signal chains where noise dominates resolution.
Stable with 500 pF capacitive load	Permits direct connection to long PCB traces, cables, or piezo transducers without external compensation.
Automotive-grade qualification (AEC-Q100)	Validated for extended temperature (–40 °C to +125 °C) and reliability in vehicle infotainment modules.

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 buffers (A+B = left, C+D = right), providing rail-to-rail output swing and low THD.

Use Value: Delivers 2 V_pk-pk into 32 Ω with 0.005% THD at 1 kHz, eliminating external output stage and reducing BOM count by 4 discrete transistors.

Use Scenario: Driving high-impedance piezoelectric buzzer arrays in automotive door module alerts.

IC Role / Device Role / Timing Role: Single op-amp per buzzer channel (e.g., Channel A), operating in unity-gain buffer mode with fast transient response.

Use Value: Sustains 80 mA peak current into piezo capacitance while maintaining 1.3 V/µs slew rate for crisp 2–4 kHz alert tones without droop or ringing.

Sound Card Line Driver

MPEG Board Audio Buffer

Use Scenario: Output stage for PC sound card line-out jacks delivering ±1 V_pk into 10 kΩ consumer audio inputs.

IC Role / Device Role / Timing Role: Quad op-amp used as two differential line drivers (A/B and C/D pairs) with 600 Ω source impedance matching.

Use Value: Achieves 120 dB channel separation and 80 dB PSRR at 1 kHz, preventing crosstalk and power supply noise coupling into analog outputs.

Use Scenario: Post-DAC buffering on MPEG decoder board for HDMI audio subsystem in set-top boxes.

IC Role / Device Role / Timing Role: Quad op-amp assigned to L/R analog outputs and SPDIF receiver biasing, leveraging rail-to-rail swing for full 0–3.3 V DAC code mapping.

Use Value: Maintains <900 µV offset across –40 °C to +125 °C, ensuring consistent zero-crossing detection in SPDIF clock recovery circuits.

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	Standard-grade (non-automotive); same electrical specs but rated only to +85 °C ambient.	Limited to commercial temperature applications (e.g., consumer sound cards), not qualified for automotive infotainment.	Select when cost sensitivity outweighs extended temperature or AEC-Q100 compliance requirements.
TSX564IDT	Lower output current (60 mA), smaller TSSOP14 package, but higher input offset (1.5 mV max) and no AEC-Q100 rating.	Suitable for space-constrained non-automotive audio, but cannot drive 32 Ω loads at full amplitude without clipping.	Choose only if board area is critical and output load impedance exceeds 60 Ω.

Compared with TS924IPT and TSX564IDT, the TS924AIYPT uniquely combines automotive qualification, 80 mA drive capability, and 900 µV offset in TSSOP14-making it the sole option for AEC-Q100-compliant, low-impedance audio buffering in compact vehicle ECUs.

Availability

TS924AIYPT is available at Aetrix Electronics and suitable for automotive infotainment modules, portable medical audio monitors, and industrial handheld test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TS924AIYPT 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 targets low-voltage, high-fidelity audio and precision analog signal conditioning-emphasizing rail-to-rail operation, low noise, and robust output drive in space-constrained portable and automotive platforms.

FAQ

What is the maximum capacitive load the TS924AIYPT can drive without oscillation?

The TS924AIYPT is specified stable with capacitive loads up to 500 pF when configured in unity-gain buffer mode. This allows direct connection to piezoelectric transducers, long PCB traces, or coaxial cables without external isolation resistors or compensation networks. Stability is verified per Figure 3 and Figure 5 in the datasheet under ±1.5 V supply conditions.

Does the TS924AIYPT support true single-supply operation with input signals extending to ground?

Yes. The TS924AIYPT features rail-to-rail input capability, with common-mode input voltage range specified from V_CC– – 0.2 V to V_CC+ + 0.2 V. When powered from 3.3 V (V_CC+ = 3.3 V, V_CC– = 0 V), it accepts input signals from –0.2 V to +3.5 V-fully covering ground-referenced audio and sensor signals without level shifting.

How does the 80 mA output current specification translate to practical load capability?

The 80 mA rating is per amplifier and represents continuous short-circuit current under worst-case thermal conditions. In practice, it supports sustained 2 V_pk-pk sine-wave output into 32 Ω (62.5 mA peak) with <0.005% THD at 1 kHz. Derating applies above +85 °C ambient; full 80 mA is guaranteed only at T_A ≤ +85 °C per Table 1 absolute ratings.

Is the TS924AIYPT pin-compatible with other quad op-amps in TSSOP14 packages?

No. While the TS924AIYPT uses standard TSSOP14 pinout (SOIC-14 compatible layout), its internal pin assignment-particularly V_CC+ on Pin 4 and V_CC– on Pin 8-is specific to the TS92x family. Substituting with generic quad op-amps (e.g., LM324, MCP6004) requires PCB redesign due to differing power pin locations and output stage architecture.

TS924AIYPT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 14-TSSOP (0.173", 4.40mm 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-TSSOP

TS924AIYPT FAQ

1.How can I place an order for TS924AIYPT through Aetrix?

Please submit a Request for Quotation (RFQ) for TS924AIYPT 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 TS924AIYPT reliable?

The price and inventory of TS924AIYPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS924AIYPT is usually 5 days.

3.What payment methods are accepted for TS924AIYPT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS924AIYPT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS924AIYPT?

TS924AIYPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS924AIYPT 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 TS924AIYPT?

For technical support, including TS924AIYPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS924AIYPT requirements.

6.How does Aetrix verify that TS924AIYPT is sourced from the original manufacturer or authorized distributors?

All TS924AIYPT 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 TS924AIYPT meets industry standards.

7.What is the process for return or replacement of TS924AIYPT?

All TS924AIYPT units undergo pre-shipment inspection (PSI). If there is an issue with TS924AIYPT, 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 TS924AIYPT part is unused and in its original packaging.

Return procedure for TS924AIYPT:

1.Submit a request within 90 days.

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

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