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

STMicroelectronics TS922ID

Name: TS922ID
Brand: STMicroelectronics
SKU: TS922ID
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS922ID

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: TS922ID.pdf

Description:: IC OPAMP GP 2 CIRCUIT 8SOIC

Quantity:: RFQ Add To RFQ list

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Inventory:1,881

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Product details

Overview

TS922ID 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, 4 MHz gain-bandwidth product, 9 nV/√Hz input noise at 1 kHz, and operates from 2.7 V to 12 V supply. Its low 900 μV max input offset voltage (TS922A variant) and 0.005% THD make it suitable for portable speaker drivers and instrumentation requiring high-fidelity signal integrity.

For engineers reviewing the TS922ID datasheet, TS922ID pinout, TS922ID application, or TS922ID equivalent, key selection criteria include rail-to-rail swing capability, capacitive load stability up to 500 pF, 32 Ω low-impedance drive strength, and thermal resistance of 125 °C/W in SO8 package - all critical for compact, low-voltage audio front-end designs.

Technical Context

The TS922ID uses a BiCMOS process enabling 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). Its 1.3 V/μs slew rate and 68° phase margin ensure stable unity-gain operation with 100 pF capacitive loads.

Internal ESD protection (2 kV HBM), latch-up immunity (200 mA), and guaranteed operation from –40 °C to +125 °C support robust deployment in portable and industrial environments. The device exhibits 120 dB channel separation and 85 dB supply voltage rejection at 5 V, minimizing crosstalk and power rail noise coupling.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2.7 V to 12 V - Enables direct integration into single-cell Li-ion (3.0–4.2 V) and dual-cell alkaline (3.0–3.6 V) systems without LDO pre-regulation.
Gain-Bandwidth Product	4 MHz - Supports audio bandwidth extension beyond 20 kHz with ≥20 dB closed-loop gain margin at 100 kHz.
Input Noise Density	9 nV/√Hz at 1 kHz - Limits audible-band noise floor to <1.8 μV RMS over 20 Hz–20 kHz, critical for microphone preamp and line driver SNR.
Output Short-Circuit Current	80 mA - Sustains continuous 32 Ω load drive at ±2.5 V supply (e.g., 4 V_PP into headphones) without thermal shutdown.
Common-Mode Rejection	80 dB typical at 25 °C - Rejects >99% of shared-mode interference in differential sensor interfaces or balanced line receivers.
Input Offset Voltage (TS922A)	0.9 mV max - Reduces DC error to <4.5 mV in unity-gain buffer configurations, avoiding audible pop during power-up.
THD + Noise	0.005% at 1 kHz, 600 Ω - Meets Class D amplifier feedback path and DAC output buffer requirements for <100 dB dynamic range.

Pinout & Package

TS922ID is supplied in an 8-pin SO8 (Small Outline Integrated Circuit) package with 1.27 mm lead pitch, 5.0 mm × 4.0 mm body, and 125 °C/W junction-to-ambient thermal resistance. Pin numbering follows standard SO8 convention with notch orientation marking Pin 1.

Pin/Terminal	Circuit Role	Design Meaning
1	Inverting Input (Amplifier A)	Accepts negative feedback network; supports DC-coupled configurations due to rail-to-rail input range.
2	Non-inverting Input (Amplifier A)	Accepts reference or signal source; common-mode range extends 0.2 V beyond supply rails.
3	Output (Amplifier A)	Delivers 80 mA sink/source; stable driving 500 pF capacitive loads without oscillation.
4	V_CC– (Ground)	Reference node for dual-supply operation or ground return in single-supply systems.
5	Non-inverting Input (Amplifier B)	Independent input for second channel; identical specs to Channel A enable stereo matching.
6	Inverting Input (Amplifier B)	Supports individual feedback per channel; no internal cross-coupling between amplifiers.
7	Output (Amplifier B)	Simultaneous dual-channel operation supported; channel separation ≥120 dB minimizes crosstalk.
8	V_CC+	Positive supply rail; accepts 2.7–12 V; internal protection limits absolute max to 14 V.

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, preserving headroom for 2.6 V_PP signals.
Low-noise architecture	9 nV/√Hz input noise ensures ≤1.8 μV RMS integrated noise over audio band, meeting IEC 60268-3 for professional line drivers.
High-output-current stage	80 mA drive capability allows direct connection to 32 Ω headphones or piezoelectric actuators without external buffers.
Capacitive-load stability	Stable with up to 500 pF load capacitance - eliminates need for isolation resistors in LCD bias or filter output stages.
ESD & latch-up immunity	2 kV HBM ESD rating and 200 mA latch-up immunity support handling in uncontrolled assembly environments without special precautions.

Applications

Portable Speaker Amplifier

Instrumentation Signal Conditioning

Use Scenario: Driving 32 Ω voice coils in Bluetooth-enabled portable speakers powered by single-cell Li-ion batteries.

IC Role / Device Role / Timing Role: Dual-channel line driver and headphone buffer with independent gain control per channel.

Use Value: 80 mA output current enables 2.6 V_PP swing into 32 Ω at 3 V supply, delivering 210 mW per channel without clipping.

Use Scenario: Low-noise amplification of thermocouple or strain gauge outputs in handheld test equipment.

IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with rail-to-rail input for zero-V offset sensing.

Use Value: 900 μV max input offset (TS922A) and 9 nV/√Hz noise limit measurement error to <0.1% FS in 100 mV full-scale systems.

Multimedia Audio Codec Interface

Line Driver for Consumer AV Equipment

Use Scenario: Output buffering between stereo DAC and analog audio jacks in smart displays or streaming sticks.

IC Role / Device Role / Timing Role: Dual-channel active filter and level-shifting buffer with 0.005% THD performance.

Use Value: 120 dB channel separation prevents left/right crosstalk in 24-bit/96 kHz playback, preserving stereo imaging fidelity.

Use Scenario: Balanced/unbalanced line-level signal distribution in home theater receivers and soundbars.

IC Role / Device Role / Timing Role: Rail-to-rail output driver maintaining signal integrity across 600 Ω professional and 10 kΩ consumer loads.

Use Value: 4 MHz GBW and 1.3 V/μs slew rate preserve transient response for 20 kHz square waves with <5% overshoot.

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
TLV2772IDR	Lower 1.8 MHz GBW, 17 nV/√Hz noise, 40 mA output drive, 2.7–6 V supply only.	Not suitable for 12 V operation or 32 Ω loads; limited to low-power sensor interfaces.	Select when ultra-low quiescent current (1.6 mA) outweighs audio performance requirements.
OPA2340UA	Higher 5.5 MHz GBW, 11 nV/√Hz noise, 50 mA output, but unstable beyond 100 pF capacitive load.	Requires series resistor for LCD or cable drive; unsuitable for direct 32 Ω headphone output.	Prefer for wideband instrumentation where capacitive load is minimal and noise margin is secondary.

Compared with TLV2772IDR and OPA2340UA, TS922ID uniquely balances 4 MHz bandwidth, 9 nV/√Hz noise, 80 mA drive, and 500 pF capacitive-load stability - making it the only option supporting direct 32 Ω headphone drive in 3–12 V systems without external compensation.

Availability

TS922ID is available at Aetrix Electronics and suitable for portable speaker amplifiers, instrumentation signal conditioning, multimedia audio codec interfaces, and line drivers requiring stable component supply across automotive (-40 °C to +125 °C) and industrial temperature ranges.

Supply support for TS922ID 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 for industrial, automotive, and consumer markets.

The TS922 series belongs to ST's precision analog portfolio, engineered specifically for low-voltage, high-fidelity audio and instrumentation applications where rail-to-rail operation, low noise, and robust output drive are mandatory.

FAQ

What is the maximum capacitive load the TS922ID can drive without instability?

The TS922ID is characterized for stable operation with capacitive loads up to 500 pF, as verified in Figure 13 of DS1117 Rev 13. This eliminates the need for isolation resistors in LCD bias, filter, or cable-driving applications. Stability is maintained with 68° phase margin and 12 dB gain margin at unity gain with 100 pF load and 600 Ω source impedance.

Does TS922ID support true single-supply operation down to 2.7 V?

Yes - TS922ID operates from 2.7 V to 12 V with rail-to-rail input (V_CC– – 0.2 V to V_CC+ + 0.2 V) and rail-to-rail output (within 180 mV of rails at 32 Ω). At 3 V supply, it delivers 2.63 V_OH and 180 mV_OL, enabling full-swing signal processing in battery-powered systems without level-shifting circuitry.

How does the TS922ID's 80 mA output current translate to real-world load capability?

The 80 mA short-circuit current rating means TS922ID can sustain 210 mW into 32 Ω (2.6 V_PP) at 3 V supply, sufficient for Class AB headphone amplification. It maintains 2.87 V_OH and 100 mV_OL at 600 Ω, supporting line-level outputs compliant with IEC 60268-3. Thermal resistance of 125 °C/W in SO8 ensures safe operation under continuous load.

Is the TS922ID pin-compatible with other dual op-amps in SO8 packages?

TS922ID follows standard SO8 pinout (dual op-amp configuration: Pins 1–3 = Amp A, Pin 4 = V_CC–, Pins 5–7 = Amp B, Pin 8 = V_CC+), matching industry conventions used by LM358, TL072, and MCP6022. However, its rail-to-rail I/O, 4 MHz GBW, and 80 mA drive differ significantly - functional substitution requires validation of noise, bandwidth, and load requirements.

TS922ID Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Packaging:: Tube

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:: 3 mV

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-SOIC

TS922ID FAQ

1.How can I place an order for TS922ID through Aetrix?

Please submit a Request for Quotation (RFQ) for TS922ID 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 TS922ID reliable?

The price and inventory of TS922ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS922ID is usually 5 days.

3.What payment methods are accepted for TS922ID?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS922ID transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS922ID?

TS922ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS922ID 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 TS922ID?

For technical support, including TS922ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS922ID requirements.

6.How does Aetrix verify that TS922ID is sourced from the original manufacturer or authorized distributors?

All TS922ID 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 TS922ID meets industry standards.

7.What is the process for return or replacement of TS922ID?

All TS922ID units undergo pre-shipment inspection (PSI). If there is an issue with TS922ID, 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 TS922ID part is unused and in its original packaging.

Return procedure for TS922ID:

1.Submit a request within 90 days.

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

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