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

STMicroelectronics TS922AIPT

Name: TS922AIPT
Brand: STMicroelectronics
SKU: TS922AIPT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS922AIPT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 8-TSSOP (0.173", 4.40mm Width)

Datasheet:: TS922AIPT.pdf

Description:: IC OPAMP GP 2 CIRCUIT 8TSSOP

Quantity:: RFQ Add To RFQ list

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Inventory:7,966

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Product details

Overview

TS922AIPT from STMicroelectronics is a rail-to-rail input/output dual BiCMOS operational amplifier optimized for 3 V and 5 V battery-powered audio systems. It delivers 80 mA output current into 32 Ω loads, features 9 nV/√Hz input noise at 1 kHz, 4 MHz gain-bandwidth product, 1 V/μs slew rate, and 900 μV max input offset voltage (TS922A grade), enabling high-fidelity line driving in portable speakers and instrumentation.

For engineers reviewing the TS922AIPT datasheet, TS922AIPT pinout, TS922AIPT application, or TS922AIPT equivalent, key selection criteria include low-noise performance in audio signal chains, rail-to-rail swing capability under 3 V supply, capacitive load stability up to 500 pF, and TSSOP8 packaging for space-constrained PCB layouts.

Technical Context

The TS922AIPT employs a BiCMOS process 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 180 mV of rails at 32 Ω), while maintaining 68° phase margin with 100 pF capacitive load. Its dual-channel architecture supports independent signal paths without crosstalk (120 dB channel separation).

It operates across 2.7–12 V supply, draws only 2–3 mA total quiescent current, and sustains stable unity-gain operation with 4 MHz bandwidth and 70 V/mV large-signal gain into 600 Ω - critical for low-distortion headphone and actuator driver stages.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	2.7 V to 12 V - enables direct use in single-cell Li-ion (3.0–3.7 V) and dual-cell alkaline (3.0–3.2 V) portable systems.
Input Offset Voltage	≤ 900 μV (max, TS922A grade) - minimizes DC error in precision sensor front-ends and active filters.
Input Noise Density	9 nV/√Hz at 1 kHz - preserves SNR in microphone preamps and low-level analog signal conditioning.
Output Current	80 mA (short-circuit limited) - drives 32 Ω headphones or piezoelectric actuators without external buffers.
Gain-Bandwidth Product	4 MHz - supports stable 1× to 10× closed-loop gain configurations up to ~300 kHz with <0.005% THD.
Common-Mode Rejection	56–80 dB over –40°C to +125°C - ensures robustness against ground bounce in mixed-signal embedded systems.
Slew Rate	1 V/μs - prevents slew-induced distortion on 10 V_PP audio signals up to ~160 kHz.

Pinout & Package

TSSOP8 package: 3.0 mm × 4.4 mm body, 0.65 mm pitch, 1.05 mm height, lead-free, ECOPACK® compliant.

Pin/Terminal	Circuit Role	Design Meaning
1	Inverting Input (Channel A)	Differential node for Channel A; accepts rail-to-rail common-mode input (V_CC– – 0.2 V to V_CC+ + 0.2 V).
2	Non-inverting Input (Channel A)	Differential node for Channel A; matched bias current (15–100 nA) minimizes offset drift.
3	Output (Channel A)	Capable of ±80 mA sink/source; maintains rail-to-rail swing down to 32 Ω load with <180 mV headroom.
4	V_CC– (Ground)	Power return for both channels; internal ESD protection (2 kV HBM) referenced to this pin.
5	V_CC+	Positive supply (2.7–12 V); thermal resistance R_thJA = 120 °C/W enables 500 mW dissipation in ambient air.
6	Output (Channel B)	Independent output stage; 120 dB channel separation prevents crosstalk in stereo or dual-path signal processing.
7	Non-inverting Input (Channel B)	Differential node for Channel B; identical electrical specs to Pin 2, supporting matched dual-channel design.
8	Inverting Input (Channel B)	Differential node for Channel B; pin-compatible with standard dual op-amp layout conventions.

Key Features

Feature	Design Value
Rail-to-rail I/O	Enables full dynamic range utilization in 3 V systems - output swings within 180 mV of rails at 32 Ω, input accepts signals down to V_CC– – 0.2 V.
Low-noise architecture	9 nV/√Hz input-referred noise at 1 kHz allows clean amplification of microvolt-level sensor outputs without added filtering.
High-output-current stage	80 mA drive capability eliminates need for external buffer transistors when interfacing with 32 Ω headphones or 600 Ω line outputs.
Capacitive-load stability	Stable with up to 500 pF load capacitance - supports direct connection to long cables or LCD bias networks without external compensation.
Wide temperature range	Specified from –40°C to +125°C - suitable for industrial portable equipment operating in uncontrolled environments.

Applications

Portable Audio Line Driver

Low-Noise Instrumentation Front-End

Use Scenario: Driving 32 Ω stereo headphones from a 3.3 V MCU DAC output in a handheld medical monitor.

IC Role / Device Role / Timing Role: Dual-channel voltage buffer and level shifter, converting DAC's limited current capability into full-swing audio output.

Use Value: 80 mA output current and rail-to-rail swing deliver >100 mW into 32 Ω without clipping; 9 nV/√Hz noise preserves diagnostic audio fidelity.

Use Scenario: Amplifying thermocouple or strain gauge signals in a battery-powered field data logger.

IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier stage with low offset and drift.

Use Value: 900 μV max V_IO and 2 μV/°C drift minimize calibration burden; 60–80 dB CMRR rejects power-supply ripple in noisy industrial settings.

Multimedia Speaker Amplifier

Actuator Driver for Portable Equipment

Use Scenario: Output stage for mono Class-AB speaker driver in a Bluetooth speaker powered by 3.7 V Li-ion.

IC Role / Device Role / Timing Role: Low-distortion voltage gain block feeding passive crossover network.

Use Value: 0.005% THD at 1 kHz and 4 MHz GBW enable flat frequency response to 20 kHz; 1 V/μs slew rate prevents transient intermodulation.

Use Scenario: Driving piezoelectric haptic feedback elements in a ruggedized handheld test instrument.

IC Role / Device Role / Timing Role: High-current, fast-settling voltage source delivering precise displacement waveforms.

Use Value: 80 mA short-circuit current and 1 V/μs slew rate support 100 Hz–1 kHz tactile pulse generation; latch-up immunity ensures reliability during mechanical shock events.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual rail-to-rail op-amp applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLV2462IDR	Lower supply current (650 μA/channel), lower GBW (6.4 MHz), higher V_IO (2 mV max), SO-8 only.	Better suited for ultra-low-power sensor nodes; less capable for 32 Ω audio loads due to 30 mA output limit.	Select TLV2462IDR when quiescent current <1.5 mA total is mandatory and audio load impedance ≥1 kΩ.
OPA2340UA	Higher noise (16 nV/√Hz), lower output current (25 mA), same 3–36 V supply range, SO-8 only.	Optimized for precision DC applications (e.g., RTD measurement), not audio; lacks drive strength for low-Z loads.	Choose OPA2340UA only for high-accuracy, low-drift DC signal conditioning where noise <10 nV/√Hz is non-critical.

Compared with TLV2462IDR and OPA2340UA, the TS922AIPT uniquely balances 80 mA drive, 9 nV/√Hz noise, and 4 MHz bandwidth in a TSSOP8 package - making it the only option among the three qualified for simultaneous low-noise, high-current, and space-constrained portable audio designs.

Availability

TS922AIPT is available at Aetrix Electronics and suitable for portable audio line drivers, low-noise instrumentation front-ends, multimedia speaker amplifiers, and actuator drivers requiring stable component supply across industrial and consumer production cycles.

Supply support for TS922AIPT 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 TS922 series belongs to ST's precision analog op-amp product line, engineered specifically for battery-powered audio and instrumentation applications demanding rail-to-rail operation, low noise, and high output current in compact packages.

FAQ

What is the maximum capacitive load the TS922AIPT can drive stably?

The TS922AIPT is specified stable with capacitive loads up to 500 pF without external compensation, as verified in Figure 13 of DS1117 Rev 13. This enables direct interface to long PCB traces, LCD bias lines, or coaxial cables without risk of oscillation - provided the load is purely capacitive and no series inductance exceeds 10 nH.

Does the TS922AIPT support true single-supply operation below 3 V?

Yes - the TS922AIPT operates down to 2.7 V supply with full rail-to-rail input and output functionality. At 2.7 V, it maintains 80 mA output current, 900 μV max V_IO, and 4 MHz GBW, making it suitable for single-cell Li-ion (nominal 3.6 V, discharge to 2.7 V) and two-cell alkaline (3.2 V fresh, 2.7 V end-of-life) systems.

How does the TS922AIPT's ESD rating compare to standard industry requirements?

The TS922AIPT features 2 kV human-body-model (HBM) ESD protection per IEC 61000-4-2 Level 2, matching typical board-level handling requirements. Its latch-up immunity of 200 mA exceeds JEDEC JESD78 limits, ensuring robustness against transient overcurrent events during hot-plug or cable insertion in portable equipment.

Can the TS922AIPT be used in unity-gain stable configurations with gain-setting resistors?

Yes - the TS922AIPT is unity-gain stable with phase margin of 68° at unit gain (Figure 5), and its gain-bandwidth product remains 4 MHz regardless of closed-loop gain. When configured as a unity-gain buffer, it achieves <0.005% THD at 1 kHz into 600 Ω, with no peaking or ringing observed up to 500 pF load capacitance.

TS922AIPT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 8-TSSOP (0.173", 4.40mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Amplifier Type:: General Purpose

Number of Circuits:: 2

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:: 2mA

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:: 8-TSSOP

TS922AIPT FAQ

1.How can I place an order for TS922AIPT through Aetrix?

Please submit a Request for Quotation (RFQ) for TS922AIPT 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 TS922AIPT reliable?

The price and inventory of TS922AIPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS922AIPT is usually 5 days.

3.What payment methods are accepted for TS922AIPT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS922AIPT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS922AIPT?

TS922AIPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS922AIPT 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 TS922AIPT?

For technical support, including TS922AIPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS922AIPT requirements.

6.How does Aetrix verify that TS922AIPT is sourced from the original manufacturer or authorized distributors?

All TS922AIPT 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 TS922AIPT meets industry standards.

7.What is the process for return or replacement of TS922AIPT?

All TS922AIPT units undergo pre-shipment inspection (PSI). If there is an issue with TS922AIPT, 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 TS922AIPT part is unused and in its original packaging.

Return procedure for TS922AIPT:

1.Submit a request within 90 days.

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

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