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STMicroelectronics TSV622AIST
- Part No.:
- TSV622AIST
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TSV622AIST.pdf
- Description:
- IC CMOS 2 CIRCUIT 8MINISO
- Quantity:
- Payment:
- Shipping:
Inventory:3,749
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Product details
Overview
TSV622AIST from STMicroelectronics is a rail-to-rail input/output dual CMOS operational amplifier optimized for ultra-low-power, low-voltage operation in battery-powered sensor interfaces and portable instrumentation. It delivers 420 kHz gain bandwidth at 29 µA supply current (5 V), supports 1.5–5.5 V supply range, and achieves 800 µV max input offset voltage (A-grade), enabling precision signal conditioning in space-constrained, energy-sensitive designs.
For engineers reviewing the TSV622AIST datasheet, TSV622AIST pinout, TSV622AIST application, or TSV622AIST equivalent, key selection criteria include its rail-to-rail I/O capability, 1 pA typical input bias current, shutdown-ready architecture (though not implemented in this dual variant), EMI-hardened performance (92 dB EMIRR at 1.8 GHz), and guaranteed unity-gain stability with 100 pF capacitive loads.
Technical Context
The TSV622AIST employs complementary PMOS/NMOS input stages to achieve rail-to-rail input common-mode range (VCC− −0.1 V to VCC+ +0.1 V) and uses a stabilized transconductance architecture that tightly controls supply current dispersion (±17% max), directly correlating GBP (350–420 kHz) and slew rate (0.12–0.19 V/µs) across process and temperature.
Its output stage drives resistive loads ≥5 kΩ with <35 mV saturation voltage swing (at 10 kΩ to VCC/2), while maintaining phase margin ≥40° and gain margin ≥8 dB under 100 pF capacitive loading-enabling stable unity-gain follower configurations without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.5 V to 5.5 V - enables direct integration with single-cell Li-ion, coin-cell, or 3.3 V/5 V system rails without LDO pre-regulation. |
| Quiescent Current per Amplifier | 29 µA typ @ 5 V - allows >1-year operation on a 220 mAh coin cell driving intermittent sensor readouts. |
| Gain Bandwidth Product | 420 kHz typ @ 5 V - supports anti-aliasing filtering up to ~66 kHz (0.15× GBP) with adequate phase margin. |
| Input Offset Voltage (A-grade) | 800 µV max @ 25°C - ensures ≤0.016% full-scale error in 5 V-span 12-bit ADC front-ends. |
| Input Bias Current | 1 pA typ - preserves high-impedance sensor node integrity (e.g., pH electrodes, photodiodes) without leakage-induced drift. |
| EMI Rejection Ratio | 92 dB @ 1.8 GHz - suppresses cellular-band RF interference in wearable medical monitors without added shielding. |
| Rail-to-Rail Output Swing | Within 35 mV of rails @ 10 kΩ load - maximizes dynamic range in low-voltage ADC drivers and reference buffers. |
Pinout & Package
TSV622AIST is housed in a MiniSO8 package (3.0 × 4.9 mm, 0.65 mm pitch), optimized for compact PCB layouts in portable devices. Its 8-pin configuration supports dual op-amp functionality with independent inputs and outputs, no shared shutdown control.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Amplifier 1) | High-impedance node accepting differential signal; referenced to VCC− for rail-to-rail common-mode operation. |
| 2 | Non-inverting Input (Amplifier 1) | Accepts signals down to VCC− −0.1 V, enabling true ground-sensing in single-supply systems. |
| 3 | Output (Amplifier 1) | Delivers rail-to-rail voltage swing into ≥5 kΩ loads; high-Z during power-down (not applicable here). |
| 4 | VCC− (Ground) | Reference return path; must be decoupled with 10 nF capacitor placed <1 mm from pin per layout guidelines. |
| 5 | VCC+ | Positive supply rail (1.5–5.5 V); supplies both amplifiers; sensitive to noise coupling above 100 MHz. |
| 6 | Inverting Input (Amplifier 2) | Independent input stage; identical DC/AC specs to Pin 1; enables dual-channel signal processing. |
| 7 | Non-inverting Input (Amplifier 2) | Matches Pin 2 performance; supports matched dual-sensor front-end topologies (e.g., bridge amplification). |
| 8 | Output (Amplifier 2) | Electrically isolated from Pin 3; allows simultaneous dual-output buffering without crosstalk degradation. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 1.5–5.5 V supply range in single-supply configurations, eliminating level-shifting circuitry. |
| Ultra-low input bias current (1 pA typ) | Maintains accuracy in high-impedance sensor interfaces (e.g., piezoelectric accelerometers, ion-selective electrodes) without guard traces. |
| Unity-gain stable with 100 pF capacitive load | Permits direct driving of ADC input capacitance or long PCB traces without external series resistance or compensation networks. |
| EMI-hardened architecture (92 dB @ 1.8 GHz) | Reduces need for RF filtering components in Bluetooth/Wi-Fi coexistence environments like smart health patches. |
| Guaranteed performance from −40°C to +125°C | Supports automotive cabin sensors and industrial IoT nodes without derating or thermal management overhead. |
Applications
| Wearable Heart Rate Monitor | Portable Gas Sensor Interface |
|---|---|
|
Use Scenario: Amplifying weak AC-coupled photoplethysmography (PPG) signals from green LEDs reflected off skin tissue. IC Role / Device Role / Timing Role: Dual-channel transimpedance and post-amplifier providing 100 dB dynamic range and DC-blocking before 12-bit SAR ADC sampling at 250 Hz. Use Value: 1 pA input bias prevents baseline drift in high-gain (>10⁶ V/A) TIA configurations; rail-to-rail output ensures full ADC code utilization despite 3.3 V supply. |
Use Scenario: Conditioning analog output from electrochemical CO sensor requiring low-noise, low-drift amplification. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with matched dual op-amps rejecting common-mode interference from heater elements. Use Value: 800 µV max Vio and 2 µV/°C drift minimize calibration frequency; 420 kHz GBP supports fast step-response to gas concentration transients. |
| Wireless Temperature Node | Low-Power Medical Pulse Oximeter |
|
Use Scenario: Buffering thermistor voltage divider output prior to BLE SoC ADC in battery-operated environmental sensor. IC Role / Device Role / Timing Role: Rail-to-rail voltage follower isolating high-impedance thermistor network from ADC input capacitance and digital switching noise. Use Value: 29 µA quiescent current extends 2-year battery life on CR2032; 92 dB EMIRR prevents BLE RF coupling into analog path. |
Use Scenario: Dual-channel signal chain for red/IR LED photodiode currents in fingertip SpO₂ measurement. IC Role / Device Role / Timing Role: Simultaneous transimpedance amplification and synchronous demodulation support for time-division multiplexed LED drive. Use Value: Matched dual amplifiers ensure identical gain/phase response between red and IR paths, critical for ratio-based saturation calculation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV612IST | Lower GBP (120 kHz) and supply current (9 µA), no A-grade option; same MiniSO8 package. | Better suited for sub-20 kHz sensor buffering where speed is secondary to ultra-low power. | Select when battery life >10 years is required and signal bandwidth <15 kHz. |
| MCP6002T-I/SN | Higher Vio (1.5 mV max), lower EMIRR (≈70 dB), 1 µA Ib, SO-8 package only. | Cost-optimized for consumer wearables where EMI immunity and microvolt-level precision are non-critical. | Choose for price-sensitive volume production where 800 µV Vio and 92 dB EMIRR are not mandatory. |
Compared with TSV622AIST, TSV612IST trades 3.5× bandwidth for 3.2× lower current, while MCP6002T-I/SN offers broader distributor availability but sacrifices precision and RF robustness-making TSV622AIST optimal for medical-grade, EMI-hostile, battery-constrained designs demanding verified 800 µV Vio and 92 dB EMIRR.
Availability
TSV622AIST is available at Aetrix Electronics and suitable for battery-powered medical monitors, portable gas analyzers, wireless temperature nodes, and low-power pulse oximeters requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for TSV622AIST 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, specializing in power management, analog, MEMS, and microcontrollers for industrial, automotive, and consumer markets.
The TSV62x series was designed specifically for ultra-low-power, rail-to-rail signal conditioning in energy-harvesting and battery-operated portable instrumentation-prioritizing precision, EMI resilience, and wide supply flexibility over raw speed.
FAQ
Is TSV622AIST pin-compatible with other MiniSO8 op-amps?
No. TSV622AIST follows ST's proprietary MiniSO8 pinout (dual op-amp, no shutdown pins), differing from industry-standard SO-8 or generic MiniSO8 layouts. Direct replacement requires PCB redesign unless the alternative part shares identical pin mapping per Figure 1 of DocID15689 Rev 6.
Does TSV622AIST support true shutdown functionality?
No. The TSV622AIST variant lacks dedicated shutdown pins-only TSV623/TSV623A (MiniSO10) and TSV625/TSV625A (TSSOP16) include SHDN control. This dual op-amp operates continuously when powered; power gating must be implemented externally via supply switching.
What is the maximum capacitive load TSV622AIST can drive stably?
TSV622AIST is unity-gain stable with up to 100 pF capacitive load without external compensation. Driving >100 pF (e.g., long cables or large ADC input capacitance) requires adding a 10–100 Ω series resistor at the output, as validated in Figure 22 of the datasheet, to restore phase margin.
How does the A-grade (TSV622A) differ from standard TSV622?
The "A" suffix denotes tighter input offset voltage specification: 800 µV max vs. 1 mV max for standard TSV622. All other parameters-including supply current, GBP, and EMI rejection-are identical. A-grade is selected for applications requiring higher DC precision without increasing cost or power.
TSV622AIST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.14V/µs
- Gain Bandwidth Product:
- 420 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 29µA
- Current - Output / Channel:
- 74 mA
- Voltage - Supply Span (Min):
- 1.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MiniSO
TSV622AIST FAQ
1.How can I place an order for TSV622AIST through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV622AIST 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 TSV622AIST reliable?
The price and inventory of TSV622AIST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV622AIST is usually 5 days.
3.What payment methods are accepted for TSV622AIST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV622AIST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV622AIST?
TSV622AIST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV622AIST 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 TSV622AIST?
For technical support, including TSV622AIST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV622AIST requirements.
6.How does Aetrix verify that TSV622AIST is sourced from the original manufacturer or authorized distributors?
All TSV622AIST 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 TSV622AIST meets industry standards.
7.What is the process for return or replacement of TSV622AIST?
All TSV622AIST units undergo pre-shipment inspection (PSI). If there is an issue with TSV622AIST, 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 TSV622AIST part is unused and in its original packaging.
Return procedure for TSV622AIST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSV622AIST Tags
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