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

STMicroelectronics TS924AIPT

Name: TS924AIPT
Brand: STMicroelectronics
SKU: TS924AIPT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS924AIPT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

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

Datasheet:: TS924AIPT.pdf

Description:: IC OPAMP GP 4 CIRCUIT 14TSSOP

Quantity:: RFQ Add To RFQ list

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Inventory:11,245

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Product details

Overview

TS924AIPT 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 TS924AIPT datasheet, TS924AIPT pinout, TS924AIPT application, or TS924AIPT equivalent, this device is selected for low-noise, high-output-current audio buffering in space-constrained portable designs requiring stable rail-to-rail performance at 2.7–12 V supply.

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 stability with capacitive loads up to 500 pF.

It integrates ESD protection (3 kV HBM), latch-up immunity, and macromodel support for SPICE simulation. The device draws only 1.6 mA per amplifier at 25 °C and operates down to 2.7 V, enabling direct integration into single-cell Li-ion and 3.3 V logic-supplied signal chains.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2.7 V to 12 V - supports single-cell Li-ion (3.0–4.2 V) and 5 V/12 V industrial rails without level-shifting.
Output Current (max)	80 mA - drives 32 Ω headphones directly without external buffers or boost stages.
Gain Bandwidth Product	4 MHz - enables stable unity-gain buffer and closed-loop gain ≥10 configurations up to ~400 kHz.
Slew Rate	1.3 V/µs - preserves transient fidelity in audio signals up to ~200 kHz at 10 Vpp.
Input Voltage Noise	9 nV/√Hz @ 1 kHz - ensures <0.005% THD in line-level and headphone driver applications.
Input Offset Voltage (max)	900 µV @ –40 °C to +125 °C - minimizes DC error in precision DC-coupled sensor interfaces and active filters.
Channel Separation	120 dB - prevents crosstalk between stereo or multi-channel audio paths on shared substrate.

Pinout & Package

TSSOP14 (Thin Shrink Small Outline Package), 4.9 mm × 6.4 mm × 1.05 mm body, 0.65 mm pitch, lead-free, ECOPACK® compliant.

Pin/Terminal	Circuit Role	Design Meaning
1, 5, 9, 12	Inverting Input (A/B/C/D)	High-impedance differential node; accepts rail-to-rail common-mode input (V_CC– – 0.2 V to V_CC+ + 0.2 V).
2, 6, 10, 13	Non-inverting Input (A/B/C/D)	Identical common-mode range as inverting inputs; matched bias current (<100 nA) minimizes offset drift.
3, 7, 11, 14	Output (A/B/C/D)	Rail-to-rail swing (≤100 mV from rails at 32 Ω); capable of sourcing/sinking 80 mA continuously.
4	V_CC+	Positive supply terminal; decoupling capacitor (100 nF) required within 5 mm for stability at high frequencies.
8	V_CC–	Negative supply (ground reference for single-supply operation); low-inductance return path essential for THD performance.

Key Features

Feature	Design Value
Rail-to-rail I/O	Enables full dynamic range utilization in 3 V systems - no headroom loss at input or output stage.
80 mA Output Drive	Eliminates need for discrete output transistors in 32 Ω headphone and piezo speaker drivers.
9 nV/√Hz Input Noise	Preserves SNR >105 dB in 20 kHz audio bandwidth when driving 10 kΩ loads.
Stable with 500 pF Load	Permits direct connection to long PCB traces or LCD panel capacitance without external compensation.
–40 °C to +125 °C Operation	Validated for industrial temperature-grade applications including automotive infotainment front-end stages.

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 independent DC-coupled non-inverting buffers (gain = 2) with rail-to-rail swing.

Use Value: Delivers 100 mW/channel into 32 Ω with <0.005% THD+N, eliminating coupling capacitors and saving board area.

Use Scenario: Driving high-impedance piezoelectric buzzer elements (100 kΩ || 10 nF) in smart home alarm panels.

IC Role / Device Role / Timing Role: Single amplifier per channel used in unity-gain voltage follower configuration with fast slew rate.

Use Value: 1.3 V/µs slew rate ensures clean 4 kHz tone generation without distortion; 80 mA drive sustains peak voltage under capacitive load.

Sound Card Line Driver

MPEG Board Audio Buffer

Use Scenario: Buffering analog audio outputs (L/R) from an FPGA-based sound card to consumer line-level inputs (10 kΩ).

IC Role / Device Role / Timing Role: Two amplifiers per TS924AIPT used as low-noise, high-PSRR (85 dB) unity-gain drivers.

Use Value: 9 nV/√Hz noise and 120 dB channel separation prevent audible crosstalk and hiss in professional audio routing.

Use Scenario: Post-DAC filtering and level-shifting on MPEG decoder boards operating from 3.3 V supply in set-top boxes.

IC Role / Device Role / Timing Role: One amplifier per channel implementing 2nd-order Sallen-Key low-pass filter (20 kHz cutoff).

Use Value: 4 MHz GBP supports filter Q-factor control without peaking; rail-to-rail I/O maintains full signal swing across temperature.

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	SO14 package (8.75 mm × 4.0 mm), higher R_thJA (66 °C/W vs. 100 °C/W), same electrical specs.	Better thermal performance in high-power-density layouts; less suitable for ultra-thin portable enclosures.	Select when PCB real estate allows SO14 and thermal dissipation >150 mW per amplifier is expected.
TSX564IPT	Lower supply current (900 µA/op), lower GBW (900 kHz), smaller TSSOP14 footprint (4.4 mm × 3.0 mm), but no 32 Ω drive capability.	Optimized for low-power sensor signal conditioning, not audio output stages.	Choose only for battery-life-critical DC/low-frequency applications where 80 mA drive and 4 MHz bandwidth are unnecessary.

Compared with TS924IDT, TS924AIPT trades thermal efficiency for compactness and manufacturability in fine-pitch assembly; versus TSX564IPT, it provides 4.4× higher bandwidth and 89× greater output current-making it irreplaceable in audio output roles despite higher quiescent current.

Availability

TS924AIPT is available at Aetrix Electronics and suitable for headphone amplifiers, piezoelectric speaker drivers, and MPEG board audio buffers requiring stable component supply across industrial temperature ranges and high-volume production cycles.

Supply support for TS924AIPT 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 microcontrollers, power ICs, sensors, and analog components since 1987.

The TS92x series was developed specifically for low-voltage, high-fidelity audio signal conditioning in portable and multimedia equipment-emphasizing rail-to-rail operation, low noise, and robust output drive under battery-constrained conditions.

FAQ

Is TS924AIPT pin-compatible with TS924IDT?

Yes - both share identical TSSOP14 and SO14 pinouts per Figure 1 in the datasheet. Pin 1 (Inverting Input A) through Pin 14 (Output D) map identically. No PCB redesign is needed when migrating between packages, though thermal layout and decoupling must be re-validated for TSSOP14's higher R_thJA.

Can TS924AIPT drive a 16 Ω load?

No - the datasheet specifies guaranteed 80 mA output into 32 Ω loads at V_CC = 3 V. Driving 16 Ω would require ≥160 mA peak current, exceeding absolute maximum ratings and risking thermal shutdown or parametric shift. Use only with ≥32 Ω loads or add external current-boosting transistors.

What is the maximum capacitive load for stable operation?

The TS924AIPT remains unity-gain stable with capacitive loads up to 500 pF, as verified in Figure 3 and stated in the Description section. Loads exceeding 500 pF require isolation resistors (≥10 Ω) in series with the output to maintain phase margin >60° and prevent oscillation.

Does TS924AIPT support dual-supply operation?

Yes - it operates with split supplies (e.g., ±1.5 V, ±2.5 V, ±6 V) as confirmed in Figures 3, 4, 6–12 and Table 3/4 test conditions. Common-mode input range extends to V_CC– – 0.2 V and V_CC+ + 0.2 V, enabling true bipolar signal handling without level-shifting circuitry.

TS924AIPT 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

TS924AIPT FAQ

1.How can I place an order for TS924AIPT through Aetrix?

Please submit a Request for Quotation (RFQ) for TS924AIPT 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 TS924AIPT reliable?

The price and inventory of TS924AIPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS924AIPT is usually 5 days.

3.What payment methods are accepted for TS924AIPT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS924AIPT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS924AIPT?

TS924AIPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS924AIPT 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 TS924AIPT?

For technical support, including TS924AIPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS924AIPT requirements.

6.How does Aetrix verify that TS924AIPT is sourced from the original manufacturer or authorized distributors?

All TS924AIPT 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 TS924AIPT meets industry standards.

7.What is the process for return or replacement of TS924AIPT?

All TS924AIPT units undergo pre-shipment inspection (PSI). If there is an issue with TS924AIPT, 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 TS924AIPT part is unused and in its original packaging.

Return procedure for TS924AIPT:

1.Submit a request within 90 days.

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

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