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STMicroelectronics TS922AIN
- Part No.:
- TS922AIN
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TS922AIN.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8MINI DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,178
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Product details
Overview
TS922AIN 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, and 1 V/μs slew rate, with max 900 μV input offset voltage (TS922A grade) across –40 °C to +125 °C.
For engineers reviewing the TS922AIN datasheet, TS922AIN pinout, TS922AIN application, or TS922AIN equivalent, key selection criteria include low-noise performance in portable audio drivers, rail-to-rail swing capability under 3 V supply, high-output-current drive into low-impedance loads, and latch-up immunity in instrumentation interfaces.
Technical Context
The TS922AIN uses BiCMOS process technology to combine bipolar input stage low noise (9 nV/√Hz) with CMOS output stage high current delivery (80 mA). Its unity-gain stable architecture supports capacitive loads up to 500 pF without oscillation, and phase margin remains 68° at unit gain with 600 Ω load and 100 pF capacitance.
It operates from 2.7 V to 12 V single supply (or ±1.35 V to ±6 V dual), with common-mode input range extending 0.2 V beyond rails and output swing within 180 mV of rails at 32 Ω. Input offset drift is specified at 2 μV/°C, supporting precision DC-coupled signal paths in portable instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 12 V - Enables direct operation from single-cell Li-ion (3.0–3.7 V) or two-cell alkaline (3.0 V min) without regulation. |
| Input Offset Voltage (max) | 900 μV at TA = 25 °C - Ensures ≤0.9 mV DC error in 1× gain sensor amplifiers at room temperature. |
| Gain-Bandwidth Product | 4 MHz - Supports stable closed-loop gain ≥10 up to 400 kHz for audio preamp or filter stages. |
| Slew Rate | 1 V/μs - Delivers 2 Vpp full-scale output at 100 kHz without slewing distortion in line driver applications. |
| Output Current (min) | 80 mA - Drives 32 Ω headphones directly without external buffer, reducing BOM count in portable speakers. |
| Input Voltage Noise | 9 nV/√Hz at 1 kHz - Critical for low-noise microphone preamplifiers where SNR degradation must be minimized. |
| Common-Mode Rejection | 80 dB (typ) - Maintains signal integrity in single-supply configurations with ground-referenced sensors. |
Pinout & Package
TS922AIN is supplied in an 8-pin TSSOP package (3.0 mm × 4.4 mm footprint, 0.65 mm pitch) with exposed pad for thermal enhancement. Pin numbering follows standard SO/TSSOP convention: Pin 1 (non-inverting input of Amp A), Pin 2 (inverting input of Amp A), Pin 3 (output of Amp A), Pin 4 (V−), Pin 5 (inverting input of Amp B), Pin 6 (non-inverting input of Amp B), Pin 7 (output of Amp B), Pin 8 (V+).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | IN+ (Amplifier A) | Non-inverting input node - Accepts rail-to-rail common-mode signals from 0.2 V below V− to 0.2 V above V+. |
| Pin 2 | IN− (Amplifier A) | Inverting input node - Used for feedback configuration; input bias current ≤100 nA minimizes resistor-induced offset. |
| Pin 3 | OUT (Amplifier A) | Amplifier A output - Capable of sourcing/sinking 80 mA while maintaining rail-to-rail swing into 32 Ω. |
| Pin 4 | V− | Negative supply terminal - Connects to ground in single-supply operation; supports true 0 V input common-mode. |
| Pin 5 | IN− (Amplifier B) | Inverting input node - Electrically isolated from Amp A; channel separation >120 dB prevents crosstalk in stereo paths. |
| Pin 6 | IN+ (Amplifier B) | Non-inverting input node - Matches Pin 1 electrical characteristics; enables matched dual-channel instrumentation design. |
| Pin 7 | OUT (Amplifier B) | Amplifier B output - Identical drive capability to Pin 3; supports independent loading without mutual thermal coupling. |
| Pin 8 | V+ | Positive supply terminal - Accepts up to 12 V; internal ESD protection rated to 2 kV HBM ensures robustness in handling. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input common-mode extends 0.2 V beyond rails; output swings within 180 mV of rails at 32 Ω - Enables full dynamic range utilization in 3 V systems. |
| Low-noise architecture | 9 nV/√Hz input voltage noise at 1 kHz - Reduces audible hiss in headphone amplifiers and preserves SNR in mic preamps. |
| High-output-current drive | 80 mA continuous per channel - Eliminates need for discrete output buffers when driving 32 Ω transducers or line-level cables. |
| Stability with capacitive loads | Unity-gain stable up to 500 pF - Allows direct connection to long PCB traces or shielded cables without external compensation. |
| Latch-up immunity | Rated to 200 mA - Prevents destructive failure during transient overloads or accidental short circuits in portable equipment. |
Applications
| Portable Headphone Amplifier | Low-Voltage Instrumentation Amplifier |
|---|---|
|
Use Scenario: Driving 32 Ω stereo headphones from a 3.3 V microcontroller DAC output in a Bluetooth speaker. IC Role / Device Role / Timing Role: Dual-channel voltage follower and level-shifter, converting DAC's limited current capability into full-swing audio output. Use Value: 80 mA per channel eliminates external MOSFET buffers; rail-to-rail swing maximizes loudness at low supply voltage. |
Use Scenario: Amplifying thermocouple or bridge sensor outputs in handheld multimeters operating from two AA cells. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with low offset (900 μV max) and low drift (2 μV/°C). Use Value: 9 nV/√Hz noise floor preserves microvolt-level resolution; 80 dB CMRR rejects power supply ripple in unregulated battery systems. |
| Line Driver for Multimedia Systems | Actuator Interface in Portable Medical Devices |
|
Use Scenario: Buffering analog audio signals between codec and 10 kΩ line input on docking station or smart display. IC Role / Device Role / Timing Role: High-fidelity unity-gain buffer with THD < 0.005 % at 1 kHz and 600 Ω load. Use Value: 4 MHz GBW and 1 V/μs slew rate ensure flat frequency response to 20 kHz; channel separation >120 dB prevents stereo crosstalk. |
Use Scenario: Driving piezoelectric haptic feedback elements or small solenoid actuators in portable diagnostic tools. IC Role / Device Role / Timing Role: High-current voltage-controlled current source using output stage with 80 mA compliance. Use Value: Latch-up immunity (200 mA) withstands inductive kickback; rail-to-rail output enables full actuator stroke control from 3 V supply. |
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 output current (40 mA), higher input offset (2 mV max), 6.4 MHz GBW | Less suitable for 32 Ω headphone drive; better for higher-speed, lower-power sensor conditioning | Select when speed >4 MHz is required and load impedance ≥10 kΩ |
| MCP6022-I/SN | Higher input offset (2.5 mV max), lower noise (12 nV/√Hz), 10 MHz GBW | Higher THD in audio paths; wider supply range (2.7–6 V) but no 12 V operation | Select when cost sensitivity outweighs noise and drive requirements in non-audio instrumentation |
Compared with TLV2462IDR and MCP6022-I/SN, TS922AIN uniquely balances 80 mA drive, 9 nV/√Hz noise, and 12 V operation - making it optimal for battery-powered audio and low-impedance actuator interfaces where both fidelity and output strength are critical.
Availability
TS922AIN is available at Aetrix Electronics and suitable for portable speakers, handheld instrumentation, multimedia docking stations, and medical haptic interfaces requiring stable component supply across industrial temperature ranges.
Supply support for TS922AIN 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, MCU, power, and MEMS products for industrial, automotive, and consumer markets.
The TS922 series belongs to ST's precision analog portfolio, engineered specifically for low-voltage, low-noise, high-output-current applications in battery-powered audio and portable instrumentation systems.
FAQ
What is the maximum capacitive load the TS922AIN can drive without instability?
The TS922AIN is unity-gain stable with capacitive loads up to 500 pF, as verified by phase margin measurements of 68° at unit gain with 600 Ω load and 100 pF capacitance. This allows direct connection to long PCB traces, shielded cables, or piezoelectric transducers without external compensation networks.
Does TS922AIN support true single-supply operation down to 2.7 V?
Yes - TS922AIN operates from 2.7 V to 12 V single supply, with rail-to-rail input extending 0.2 V beyond V− and V+, and output swing within 180 mV of each rail at 32 Ω. At 2.7 V, it delivers full 2.5 Vpp output into 32 Ω, enabling use in ultra-low-voltage portable designs.
How does the TS922AIN's 80 mA output current translate to real-world load capability?
The 80 mA minimum short-circuit current enables reliable drive of 32 Ω headphones at 2.6 V output swing (VOL = 180 mV), delivering 210 mW per channel. It also supports 600 Ω line drivers with 2.87 V swing and 10 kΩ sensor buffers with 2.90 V swing - covering all major analog interface impedances.
Is the TS922AIN pin-compatible with other dual op-amps in TSSOP8 packages?
TS922AIN follows standard TSSOP8 pinout (SOIC-8 compatible layout), matching industry conventions for dual op-amps: Pins 1–3 (A amp), Pin 4 (V−), Pins 5–7 (B amp), Pin 8 (V+). This allows drop-in replacement in existing layouts designed for LM358, TLV2462, or MCP6022 footprints without PCB revision.
TS922AIN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- Through Hole
- Supplier Device Package:
- 8-Mini DIP
TS922AIN FAQ
1.How can I place an order for TS922AIN through Aetrix?
Please submit a Request for Quotation (RFQ) for TS922AIN 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 TS922AIN reliable?
The price and inventory of TS922AIN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS922AIN is usually 5 days.
3.What payment methods are accepted for TS922AIN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS922AIN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS922AIN?
TS922AIN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS922AIN 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 TS922AIN?
For technical support, including TS922AIN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS922AIN requirements.
6.How does Aetrix verify that TS922AIN is sourced from the original manufacturer or authorized distributors?
All TS922AIN 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 TS922AIN meets industry standards.
7.What is the process for return or replacement of TS922AIN?
All TS922AIN units undergo pre-shipment inspection (PSI). If there is an issue with TS922AIN, 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 TS922AIN part is unused and in its original packaging.
Return procedure for TS922AIN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TS922AIN Tags
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