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STMicroelectronics TSV623IST
- Part No.:
- TSV623IST
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TSV623IST.pdf
- Description:
- IC CMOS 2 CIRCUIT 10MINISO
- Quantity:
- Payment:
- Shipping:
Inventory:1,250
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Product details
Overview
TSV623IST from STMicroelectronics is a dual rail-to-rail input/output CMOS operational amplifier in MiniSO10 package, delivering 420 kHz gain bandwidth at 29 µA supply current (5 V), 1.5–5.5 V operation, and ultra-low 1 pA input bias current. It features two independent shutdown pins (SHDN1/SHDN2), enabling power-gated operation in portable sensor interfaces and battery-powered medical instrumentation.
For engineers reviewing the TSV623IST datasheet, TSV623IST pinout, TSV623IST application, or TSV623IST equivalent, key selection criteria include its dual-channel shutdown control, 800 µV max input offset voltage (A-version), unity-gain stability with 100 pF capacitive loads, and EMI-hardened performance up to 2.4 GHz.
Technical Context
The TSV623IST integrates two independent op-amps with complementary PMOS/NMOS input stages, enabling true rail-to-rail input (VCC− −0.1 V to VCC+ +0.1 V) and output swing within 35 mV of rails under 10 kΩ load. Its shutdown logic requires SHDN pins pulled to VCC− for disable and VCC+ for enable, with turn-on/off times of 200 ns and 20 ns respectively at 5 V.
It uses an internal current-adjustment architecture that tightly constrains supply current dispersion (±17%), ensuring consistent GBP (min 350 kHz), slew rate (min 0.12 V/µs), and large-signal gain (min 85 dB) across temperature (−40 °C to +125 °C) and supply voltage (1.5–5.5 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.5–5.5 V - supports single-cell Li-ion, coin-cell, and 3.3 V/5 V system rails without level-shifting. |
| Gain Bandwidth Product | 420 kHz typ at 5 V - enables stable active filtering up to ~40 kHz with unity-gain configuration. |
| Supply Current per Channel | 29 µA typ at 5 V - allows >1-year runtime on 100 mAh coin cell in duty-cycled sensor front-ends. |
| Input Offset Voltage | 0.8 mV typ, 2.2 mV max (−40 °C to +125 °C) - ensures sub-1 LSB error in 12-bit ADC driver applications. |
| Input Bias Current | 1 pA typ - preserves signal integrity in high-impedance pH, photodiode, or piezoelectric sensor interfaces. |
| Shutdown Current | 5 nA typ at 5 V - reduces total system quiescent power to nanoampere range when channels are inactive. |
| EMI Rejection Ratio | 92 dB at 1.8 GHz - maintains DC accuracy in noisy RF environments (e.g., Bluetooth/Wi-Fi coexistence). |
Pinout & Package
TSV623IST is housed in a 10-pin MiniSO package (3.0 mm × 4.9 mm, 0.5 mm pitch), optimized for space-constrained portable PCBs. Pin functions are validated per STMicroelectronics DocID15689 Rev 6, Figure 1 (MiniSO10 top view).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | In1+ | Non-inverting input of Channel 1 - accepts signals from VCC− −0.1 V to VCC+ +0.1 V. |
| 2 | In1− | Inverting input of Channel 1 - forms feedback node in standard op-amp configurations. |
| 3 | Out1 | Output of Channel 1 - drives loads down to 35 mV above/below rails with 10 kΩ load. |
| 4 | VCC+ | Positive supply rail - must be decoupled with 10 nF capacitor placed <1 mm from pin. |
| 5 | SHDN1 | Shutdown control for Channel 1 - logic high (≥2 V) enables; logic low (≤0.8 V) disables output to Hi-Z. |
| 6 | In2+ | Non-inverting input of Channel 2 - electrically isolated from Channel 1, same rail-to-rail range. |
| 7 | In2− | Inverting input of Channel 2 - supports independent feedback networks per channel. |
| 8 | Out2 | Output of Channel 2 - identical drive capability and rail-swing as Out1. |
| 9 | SHDN2 | Shutdown control for Channel 2 - independently gated; no cross-talk with SHDN1. |
| 10 | VCC− | Negative supply rail (GND for single-supply use) - return path for both channels and shutdown logic. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input common-mode range extends 0.1 V beyond rails; output swings to within 35 mV of VCC+/VCC− - eliminates level-shifting in low-voltage signal chains. |
| Dual independent shutdown | Separate SHDN1/SHDN2 pins allow selective channel disabling - critical for dynamic power management in multi-sensor nodes. |
| Unity-gain stable with 100 pF load | No external compensation required for capacitive loads ≤100 pF - simplifies layout in ADC buffer or filter output stages. |
| EMI-hardened architecture | EMIRR ≥92 dB at 1.8 GHz - suppresses RF rectification artifacts in cellular/Wi-Fi adjacent bands without shielding. |
| Tight parameter distribution | Supply current variation ±17% - ensures predictable GBP, slew rate, and gain across production lots and temperature. |
Applications
| Portable ECG Front-End | Low-Power Gas Sensor Interface |
|---|---|
|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in wearable ECG patches. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end: Channel 1 buffers electrode signal, Channel 2 provides reference drive; both shut down between sampling intervals. Use Value: 1 pA input bias prevents electrode polarization drift; 29 µA/channel current enables >30-day battery life on CR2032. |
Use Scenario: Conditioning resistive gas sensor (e.g., MQ-135) output in battery-operated air quality monitors. IC Role / Device Role / Timing Role: Transimpedance amplifier (Channel 1) converts sensor current to voltage; Channel 2 buffers filtered output for ADC input. Use Value: Rail-to-rail input captures full sensor voltage swing (0–3.3 V); shutdown cuts idle power to <10 nW per channel. |
| Medical Pulse Oximeter Analog Front-End | IoT Environmental Data Logger |
|
Use Scenario: Driving red/IR LEDs and amplifying photodiode current in compact pulse oximeters. IC Role / Device Role / Timing Role: Channel 1 operates as LED current source controller; Channel 2 acts as transimpedance amplifier for photodiode signal. Use Value: 420 kHz GBP supports fast LED modulation (>100 Hz); 800 µV max Vio ensures SpO₂ calculation accuracy within ±1%. |
Use Scenario: Signal conditioning for thermistor, humidity, and barometric pressure sensors in field-deployed loggers. IC Role / Device Role / Timing Role: Multi-channel sensor interface: one op-amp per sensor bridge, with shutdown synchronized to MCU wake cycles. Use Value: 1.5 V minimum supply enables direct connection to buck-boost regulators; EMI hardening prevents false triggers near GSM antennas. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-power rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV623IST's sibling TSV623AIST | Guarantees 800 µV max input offset voltage (vs. 1 mV max for TSV623IST); otherwise identical specs and pinout. | Better suited for precision DC-coupled sensor bridges where offset drift impacts calibration stability. | Select TSV623AIST when offset-critical applications require guaranteed 0.8 mV max over full temperature range. |
| MCP6022-E/SN (Microchip) | Higher 170 µA supply current, 1 MHz GBP, no shutdown pins; SO-8 package only. | Used where higher speed is needed but battery life is secondary; lacks independent channel shutdown. | Choose MCP6022-E/SN only if design requires >1 MHz bandwidth and can accept 6× higher quiescent current. |
Compared with TSV623IST, TSV623AIST improves DC precision without trade-offs in power or size, while MCP6022-E/SN trades nanoamp shutdown and MiniSO10 footprint for bandwidth - making TSV623IST optimal for ultra-low-power, space-constrained, multi-channel sensing.
Availability
TSV623IST is available at Aetrix Electronics and suitable for portable medical devices, battery-powered environmental sensors, and IoT edge node signal conditioning requiring stable component supply across extended temperature ranges (−40 °C to +125 °C).
Supply support for TSV623IST 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 analog, power, and microcontroller solutions 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 systems - prioritizing nanoamp shutdown, 1.5 V operation, and EMI resilience over raw speed.
FAQ
What is the maximum capacitive load the TSV623IST can drive without external compensation?
The TSV623IST is unity-gain stable with capacitive loads up to 100 pF when configured as a voltage follower. Driving larger loads (e.g., ADC input capacitance >100 pF) requires a series resistor (10–100 Ω) between the op-amp output and the load, as specified in Section 4.6 of the datasheet. Stability must be verified via bench measurement and SPICE simulation using ST's macromodel.
Can the TSV623IST operate from a single 1.5 V alkaline cell?
Yes - the TSV623IST is fully specified from 1.5 V to 5.5 V supply, with all key parameters (GBP, Vio, ICC) characterized at 1.5 V. At 1.5 V, it delivers 275 kHz GBP and 25 µA typical supply current per channel, enabling reliable operation throughout the discharge curve of AA/AAA cells down to 1.5 V.
How does the shutdown function affect output state and leakage?
When either SHDN1 or SHDN2 is pulled low (≤0.8 V), the corresponding amplifier output enters high-impedance state with ≤1 nA leakage current (125 °C). The disabled channel draws only 5 nA typical supply current. Outputs must not be externally pulled during shutdown, as this may cause reverse current flow exceeding absolute maximum ratings.
Is the TSV623IST suitable for driving ADC inputs directly?
Yes - its rail-to-rail output swing (within 35 mV of rails), low 0.8 mV typical Vio, and 100 pF capacitive load stability make it ideal for buffering SAR and delta-sigma ADC inputs. For 12-bit systems, ensure layout includes 10 nF local decoupling at VCC+ and guard traces around high-impedance inputs to maintain THD <0.002%.
TSV623IST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-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:
- 4 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:
- 10-MiniSO
TSV623IST FAQ
1.How can I place an order for TSV623IST through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV623IST 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 TSV623IST reliable?
The price and inventory of TSV623IST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV623IST is usually 5 days.
3.What payment methods are accepted for TSV623IST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV623IST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV623IST?
TSV623IST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV623IST 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 TSV623IST?
For technical support, including TSV623IST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV623IST requirements.
6.How does Aetrix verify that TSV623IST is sourced from the original manufacturer or authorized distributors?
All TSV623IST 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 TSV623IST meets industry standards.
7.What is the process for return or replacement of TSV623IST?
All TSV623IST units undergo pre-shipment inspection (PSI). If there is an issue with TSV623IST, 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 TSV623IST part is unused and in its original packaging.
Return procedure for TSV623IST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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