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STMicroelectronics TS922EIJT
- Part No.:
- TS922EIJT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-UFBGA, FCBGA
- Datasheet:
-
TS922EIJT.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8FCBGA
- Quantity:
- Payment:
- Shipping:
Inventory:7,816
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Product details
Overview
TS922EIJT from STMicroelectronics is a rail-to-rail input/output dual BiCMOS operational amplifier in an 8-bump flip-chip package with backcoating, specified for 2.7–12 V operation, delivering 80 mA output current into 32 Ω loads, 4 MHz gain-bandwidth product, and 9 nV/√Hz input voltage noise - deployed in portable audio line drivers and low-noise instrumentation.
For engineers reviewing the TS922EIJT datasheet, TS922EIJT pinout, TS922EIJT application, or TS922EIJT equivalent, key selection criteria include rail-to-rail swing capability, capacitive load stability up to 500 pF, ±1 V/μs slew rate, 2.5 mV max input offset voltage over temperature, and ESD immunity of 2 kV HBM - critical for battery-powered audio and precision analog front-ends.
Technical Context
The TS922EIJT integrates two independent high-output-current op-amps on a single die using BiCMOS process technology, enabling simultaneous rail-to-rail input common-mode range (VCC− −0.2 V to VCC+ +0.2 V) and rail-to-rail output swing (within 180 mV of rails at 32 Ω). Its internal compensation ensures unity-gain stability with capacitive loads ≤500 pF.
It operates across −40 °C to +125 °C, supports supply voltages from 2.7 V to 12 V, and features 68° phase margin and 12 dB gain margin at unit gain with 600 Ω load and 100 pF capacitive load - confirming robust small-signal and large-signal transient response in demanding analog signal chains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 12 V - enables direct integration into single-supply 3 V and 5 V systems without level-shifting. |
| Gain-Bandwidth Product | 4 MHz - supports stable closed-loop operation up to ~300 kHz with gain ≥13, suitable for audio preamp and filter stages. |
| Slew Rate | 1 V/μs typical - delivers full-power bandwidth >159 kHz at 10 Vpp, sufficient for undistorted 20 kHz audio signals. |
| Input Voltage Noise | 9 nV/√Hz at 1 kHz - ensures <0.005% THD+N at 1 kHz with 600 Ω load, critical for high-fidelity portable speaker drivers. |
| Output Short-Circuit Current | 80 mA - drives 32 Ω loads directly (e.g., headphone outputs or piezo actuators) without external buffers. |
| Input Offset Voltage | 2.5 mV max over −40 °C to +125 °C - minimizes DC error in precision sensor amplification and active filters. |
| Common-Mode Rejection | 56 dB min over full temperature range - maintains signal integrity in noisy industrial or automotive environments. |
Pinout & Package
TS922EIJT uses an 8-bump flip-chip package with backcoating (ECOPACK® compliant), measuring 1600 µm × 1600 µm die size and 500 µm bump pitch; thermal resistance RthJA is 90 °C/W. The device has no exposed leads - bumps serve as electrical terminals and require PCB land pattern per Figure 15 (DS1117 Rev 13, p.10).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Bump A1 | Inverting Input (Amplifier 1) | High-impedance node accepting differential signal; referenced to VCC/2 in AC-coupled configurations. |
| Bump A2 | Non-inverting Input (Amplifier 1) | Accepts reference or sensor signal; rail-to-rail common-mode range allows direct connection to 0 V or VCC. |
| Bump B1 | Output (Amplifier 1) | Capable of sourcing/sinking 80 mA; stable with 500 pF capacitive load - supports direct connection to cables or transducers. |
| Bump B2 | VCC | Positive supply rail; decoupling capacitor (≥100 nF) required within 2 mm for PSRR optimization. |
| Bump C1 | VCC– / GND | Ground reference for both amplifiers; shared return path requires low-inductance layout to avoid crosstalk. |
| Bump C2 | Inverting Input (Amplifier 2) | Independent input channel; identical specs to Amp1 - enables stereo or dual-channel signal conditioning. |
| Bump D1 | Non-inverting Input (Amplifier 2) | Second high-Z input; supports matched-pair configurations such as instrumentation amplifiers or differential receivers. |
| Bump D2 | Output (Amplifier 2) | Second rail-to-rail output; channel separation >120 dB prevents inter-channel interference in dual audio paths. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output swing | Enables full dynamic range utilization in 3 V systems - e.g., 0–3 V output with <180 mV headroom at 32 Ω load. |
| Low 9 nV/√Hz input voltage noise | Preserves SNR in microphone preamps and sensor interfaces where signal amplitudes are sub-millivolt. |
| 80 mA output drive into 32 Ω | Eliminates need for external output buffers in headphone drivers and piezoelectric actuator control circuits. |
| Stability with 500 pF capacitive load | Permits direct connection to long traces, cables, or LCD bias networks without external compensation. |
| 2 kV HBM ESD protection | Reduces system-level ESD design overhead in handheld devices - no additional TVS diodes required on op-amp inputs. |
Applications
| Portable Speaker Driver | Low-Noise Instrumentation Amplifier |
|---|---|
|
Use Scenario: Driving 32 Ω miniature speakers in Bluetooth earbuds with single 3.3 V supply. IC Role / Device Role / Timing Role: Dual op-amp configured as stereo line driver with rail-to-rail output swing and 1 V/μs slew rate. Use Value: Delivers 2 Vpp clean audio at 20 kHz with <0.005% THD+N, eliminating external buffer stages and reducing BOM count by one IC. |
Use Scenario: Amplifying thermocouple or strain gauge signals in handheld test equipment. IC Role / Device Role / Timing Role: First-stage gain block with 2.5 mV max input offset and 9 nV/√Hz noise floor. Use Value: Achieves <10 μV input-referred error over temperature, enabling 16-bit-equivalent resolution without auto-zero circuitry. |
| Line Driver for Multimedia Systems | Actuator Interface in Portable Medical Devices |
|
Use Scenario: Transmitting line-level analog audio between codec and DAC in tablet PCs. IC Role / Device Role / Timing Role: Dual-channel buffer with 120 dB channel separation and 60 dB CMRR. Use Value: Prevents crosstalk-induced stereo image collapse and rejects ground-bounce noise from adjacent digital subsystems. |
Use Scenario: Driving piezoelectric haptic feedback elements requiring fast voltage transitions. IC Role / Device Role / Timing Role: High-slew-rate voltage source with 80 mA short-circuit current capability. Use Value: Generates 100 V/ms step responses into 1 nF capacitive loads, enabling crisp tactile feedback pulses without 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 |
|---|---|---|---|
| TS922IPT | TSSOP8 package (vs. flip-chip); RthJA = 120 °C/W (vs. 90 °C/W); same electrical specs. | Better suited for manual assembly or prototyping due to visible leads; lower thermal performance limits continuous 80 mA output. | Select when board rework or visual inspection is required; avoid in thermally constrained sealed enclosures. |
| TS922IDT | SO8 package; RthJA = 125 °C/W; same AC/DC specs but larger footprint and higher parasitic inductance. | Preferred for legacy designs or cost-sensitive industrial boards where thermal density is not limiting. | Choose for compatibility with existing SO8 footprints or when tape-and-reel handling is mandatory for SMT lines. |
Compared with TS922IPT and TS922IDT, the TS922EIJT offers superior thermal dissipation (90 °C/W) and smallest footprint - essential for space-constrained portable audio and medical wearables where power efficiency and miniaturization are prioritized.
Availability
TS922EIJT is available at Aetrix Electronics and suitable for portable speaker drivers, low-noise instrumentation amplifiers, multimedia line drivers, and actuator interfaces requiring stable component supply across automotive-grade temperature ranges (−40 °C to +125 °C).
Supply support for TS922EIJT 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 industrial, automotive, and consumer markets.
The TS922 series belongs to ST's precision analog op-amp product line, engineered specifically for low-voltage, low-noise, high-output-current applications in battery-powered and space-constrained systems.
FAQ
Is TS922EIJT qualified for automotive applications?
No - TS922EIJT is not AEC-Q100 qualified. While it operates across −40 °C to +125 °C, only variants like TS922IYPT and TS922AIYPT carry automotive qualification per AEC-Q100 Grade 2. TS922EIJT is intended for industrial and consumer portable equipment where extended temperature range is needed but formal automotive certification is not required.
Can TS922EIJT drive a 100 pF capacitive load without oscillation?
Yes - the TS922EIJT is unity-gain stable with capacitive loads up to 500 pF, as verified by phase margin (68°) and gain margin (12 dB) measurements under 600 Ω load conditions. Driving 100 pF introduces negligible phase shift, ensuring robust stability in filter, cable, or LCD bias applications without external compensation.
What is the maximum continuous output current per channel?
The TS922EIJT delivers 80 mA short-circuit output current per channel, but continuous current depends on thermal limits. At ambient 25 °C with no heatsink, sustained 80 mA into 32 Ω causes ~1.3 W dissipation - exceeding safe junction temperature unless PCB copper area provides adequate heat spreading. Derate to ≤40 mA for continuous operation in compact layouts.
Does TS922EIJT require external input protection diodes?
No - the device integrates 2 kV HBM ESD protection on all pins and exhibits latch-up immunity per JEDEC JESD78. Input voltage range extends to (VCC−) −0.3 V and (VCC+) +0.3 V, allowing direct connection to most microcontroller I/O or sensor outputs without series resistors or clamps - provided differential input voltage stays within ±1 V.
TS922EIJT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-UFBGA, FCBGA
- 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:
- 1.5 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-FCBGA (1.6x1.6)
TS922EIJT FAQ
1.How can I place an order for TS922EIJT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS922EIJT 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 TS922EIJT reliable?
The price and inventory of TS922EIJT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS922EIJT is usually 5 days.
3.What payment methods are accepted for TS922EIJT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS922EIJT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS922EIJT?
TS922EIJT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS922EIJT 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 TS922EIJT?
For technical support, including TS922EIJT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS922EIJT requirements.
6.How does Aetrix verify that TS922EIJT is sourced from the original manufacturer or authorized distributors?
All TS922EIJT 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 TS922EIJT meets industry standards.
7.What is the process for return or replacement of TS922EIJT?
All TS922EIJT units undergo pre-shipment inspection (PSI). If there is an issue with TS922EIJT, 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 TS922EIJT part is unused and in its original packaging.
Return procedure for TS922EIJT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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