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STMicroelectronics TS924IPT
- Part No.:
- TS924IPT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TS924IPT.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,679
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Product details
Overview
TS924IPT 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, 4 MHz gain-bandwidth product, 1.3 V/µs slew rate, 9 nV/√Hz input voltage noise, and operates from 2.7 V to 12 V supply. Used in headphone amplifiers and piezoelectric speaker drivers where low-noise, high-output-current performance is critical.
For engineers reviewing the TS924IPT datasheet, TS924IPT pinout, TS924IPT application, or TS924IPT equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, application-specific implementation insights, and confirmed alternative parts with functional trade-offs for audio and portable signal conditioning circuits.
Technical Context
The TS924IPT integrates four independent BiCMOS op-amps with rail-to-rail input common-mode range (VCC− − 0.2 V to VCC+ + 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 1.3 V/µs slew rate support stable operation into capacitive loads up to 500 pF.
It achieves 9 nV/√Hz input voltage noise at 1 kHz and 0.005% THD+N at 1 kHz driving 600 Ω, enabling high-fidelity analog signal paths. Input offset voltage is ≤1.8 mV (TS924A grade), with 2 µV/°C drift and 3 kV HBM ESD protection - all specified across −40 °C to +125 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 12 V - supports single-supply battery operation down to 3 V nominal without rail compression. |
| Output Current | 80 mA per amplifier - drives 32 Ω loads directly (e.g., headphones, piezo elements) without external buffers. |
| Gain-Bandwidth Product | 4 MHz - enables stable unity-gain buffer configurations and audio-band filtering up to ~200 kHz. |
| Slew Rate | 1.3 V/µs - preserves transient fidelity for 2 Vpk-pk signals up to ~100 kHz without slew-induced distortion. |
| Input Voltage Noise | 9 nV/√Hz at 1 kHz - ensures low-noise pre-amplification in microphone and sensor front-ends. |
| THD+N | 0.005% at 1 kHz, 2 Vpk-pk, RL = 600 Ω - meets high-fidelity audio requirements for line-level and headphone outputs. |
| Channel Separation | 120 dB - prevents crosstalk between adjacent channels in stereo or multi-channel audio routing. |
Pinout & Package
TSSOP14 (Thin Shrink Small Outline Package) - 4.9 mm × 6.4 mm body, 0.65 mm pitch, 1.0 mm max height, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 12 | Inverting Input (A, B, C, D) | Differential input node for each op-amp; accepts rail-to-rail common-mode voltage (VCC− − 0.2 V to VCC+ + 0.2 V). |
| 2, 6, 10, 13 | Non-inverting Input (A, B, C, D) | Differential input node; identical common-mode range and bias current (≤100 nA) as inverting inputs. |
| 3, 7, 11, 14 | Output (A, B, C, D) | Rail-to-rail output capable of sourcing/sinking 80 mA; stable with ≥500 pF capacitive load. |
| 4 | VCC+ | Positive supply rail - connects to main system supply (2.7–12 V); decoupling capacitor required. |
| 8 | VCC− | Negative supply rail - typically ground in single-supply configurations; must be referenced to system 0 V. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full dynamic range utilization in low-voltage (3 V) systems - output swings within 100 mV of rails at 32 Ω. |
| High Output Drive | 80 mA per channel eliminates need for external driver stages when interfacing with low-Z transducers or cables. |
| Low Input Noise | 9 nV/√Hz at 1 kHz allows clean amplification of weak signals (e.g., electret mic outputs) without added noise floor. |
| Stable Capacitive Loading | Guaranteed stability with up to 500 pF load capacitance - simplifies PCB layout for long traces or connector interfaces. |
| Wide Supply Range | 2.7–12 V operation supports both coin-cell (3 V) and dual-rail (±6 V) designs without redesigning bias networks. |
Applications
| Headphone Amplifier | Piezoelectric Speaker Driver |
|---|---|
|
Use Scenario: Driving stereo 32 Ω dynamic headphones from a 3.3 V microcontroller DAC output. 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 2 Vpk-pk into 32 Ω with 0.005% THD+N, eliminating need for discrete output transistors or charge pumps. |
Use Scenario: Generating high-voltage AC waveforms (up to ±1.5 V) for ultrasonic piezo transducers in portable medical devices. IC Role / Device Role / Timing Role: Single op-amp used in inverting amplifier configuration with gain ≥10 to boost DAC output while maintaining phase accuracy. Use Value: 1.3 V/µs slew rate ensures faithful reproduction of 100 kHz drive signals; 80 mA peak current sustains piezo impedance dips. |
| Sound Card Line Driver | MPEG Board Audio Buffer |
|
Use Scenario: Isolating and level-shifting analog audio outputs on PC sound cards before connecting to external amplifiers. IC Role / Device Role / Timing Role: Quad op-amp used as four independent unity-gain buffers with high CMRR (≥80 dB) and channel separation (120 dB). Use Value: Prevents ground-loop induced hum and crosstalk between left/right/center/sub channels in multi-channel consumer audio systems. |
Use Scenario: Conditioning decoded PCM audio streams on MPEG decoder boards before feeding to headphone jacks or speaker terminals. IC Role / Device Role / Timing Role: Two op-amps configured as active low-pass filters (cutoff ~20 kHz) plus two as DC-blocking AC-coupled buffers. Use Value: 4 MHz GBW supports sharp filter roll-off without phase lag; rail-to-rail output maximizes SNR in 3.3 V digital audio subsystems. |
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 | Same electrical specs but in SO14 package (8.75 mm × 4.0 mm); higher thermal resistance (66 °C/W vs. 100 °C/W for TSSOP14). | Better suited for through-hole prototyping or legacy board layouts requiring wider pitch and larger footprint. | Select TS924ID for manual assembly, thermal margin priority, or compatibility with existing SO14 footprints. |
| TS924AIPT | Lower input offset voltage (≤900 µV max vs. ≤1.8 mV), same noise, speed, and drive capability; identical TSSOP14 packaging. | Preferred for precision DC-coupled audio paths (e.g., microphone preamps) where offset-induced DC shift must be minimized. | Choose TS924AIPT when sub-millivolt offset is required without sacrificing bandwidth or output current. |
Compared with TS924IPT, TS924ID offers mechanical robustness and thermal advantage in SO14 but sacrifices space efficiency, while TS924AIPT improves DC precision without altering AC performance - making TS924IPT the optimal balance of cost, size, and general-purpose audio fidelity.
Availability
TS924IPT 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 long production lifecycles.
Supply support for TS924IPT 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 automotive, industrial, and consumer markets.
The TS92x series targets low-voltage, high-fidelity analog signal conditioning - specifically engineered for battery-powered audio, portable instrumentation, and space-constrained embedded systems demanding rail-to-rail performance and robust output drive.
FAQ
Is TS924IPT suitable for single-supply 3.3 V audio applications?
Yes. TS924IPT operates from 2.7 V to 12 V with rail-to-rail input and output, enabling full-swing signal handling at 3.3 V. Its 80 mA output current drives 32 Ω headphones directly, and 9 nV/√Hz noise preserves signal integrity in line-level and headphone amplifier stages without external level-shifting circuitry.
What is the maximum capacitive load the TS924IPT can drive stably?
The TS924IPT is specified stable with capacitive loads up to 500 pF across its operating temperature range (−40 °C to +125 °C). This allows direct connection to long PCB traces, connectors, or small ceramic bypass capacitors without external isolation resistors - verified in the datasheet's Figure 3 and Figure 5.
How does TS924IPT differ from TS924A-grade variants?
TS924IPT uses the standard TS924 grade (max input offset voltage = 1.8 mV), while TS924AIPT uses the enhanced TS924A grade (max offset = 900 µV). All other parameters - noise, bandwidth, slew rate, output current, and supply range - are identical. The A-grade is selected only when tighter DC precision is required.
Can TS924IPT replace LM324 in existing designs?
TS924IPT is not a drop-in replacement for LM324 due to different pinout (TSSOP14 vs. SO14/DIP14), rail-to-rail I/O (LM324 is not rail-to-rail), and higher quiescent current (1.6 mA vs. ~0.8 mA). However, it can upgrade LM324-based audio or sensor circuits by improving dynamic range, noise, and output drive - provided PCB layout and biasing are revised accordingly.
TS924IPT 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:
- 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-TSSOP
TS924IPT FAQ
1.How can I place an order for TS924IPT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS924IPT 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 TS924IPT reliable?
The price and inventory of TS924IPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS924IPT is usually 5 days.
3.What payment methods are accepted for TS924IPT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS924IPT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS924IPT?
TS924IPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS924IPT 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 TS924IPT?
For technical support, including TS924IPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS924IPT requirements.
6.How does Aetrix verify that TS924IPT is sourced from the original manufacturer or authorized distributors?
All TS924IPT 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 TS924IPT meets industry standards.
7.What is the process for return or replacement of TS924IPT?
All TS924IPT units undergo pre-shipment inspection (PSI). If there is an issue with TS924IPT, 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 TS924IPT part is unused and in its original packaging.
Return procedure for TS924IPT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TS924IPT Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
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LM324DR
Texas Instruments
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
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LM2902PWR
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LM2902DR
Texas Instruments
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LM358P
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