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

STMicroelectronics TSV622IST

Name: TSV622IST
Brand: STMicroelectronics
SKU: TSV622IST
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TSV622IST

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Datasheet:: TSV622IST.pdf

Description:: IC CMOS 2 CIRCUIT 8MINISO

Quantity:: RFQ Add To RFQ list

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Inventory:7,885

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Product details

Overview

TSV622IST from STMicroelectronics is a dual rail-to-rail input/output CMOS operational amplifier optimized for ultra-low-power, low-voltage operation in battery-powered systems. It delivers 420 kHz gain bandwidth at 29 µA supply current (5 V), supports 1.5–5.5 V supply range, features 1 pA typical input bias current and 800 µV max input offset voltage (A version), and is unity-gain stable with up to 100 pF capacitive load - enabling precision signal conditioning in portable medical sensors.

For engineers reviewing the TSV622IST datasheet, TSV622IST pinout, TSV622IST application, or TSV622IST equivalent, key selection criteria include its rail-to-rail I/O capability at sub-2-V operation, shutdown-ready architecture (though not implemented in this dual variant), EMI-hardened performance (92 dB EMIRR at 1.8 GHz), and guaranteed DC accuracy across –40 °C to +125 °C.

Technical Context

The TSV622IST employs complementary PMOS/NMOS input stages to achieve rail-to-rail input common-mode range (VCC− −0.1 V to VCC+ +0.1 V) without phase reversal. Its internal current-starved compensation ensures unity-gain stability with 100 pF loads while maintaining 40° phase margin and 8 dB gain margin.

DC performance is tightly controlled via on-die trimming: supply current variation is limited to ±17% around 29 µA typ, directly correlating to consistent GBP (350–420 kHz min/typ) and slew rate (0.12–0.19 V/µs min/typ) across temperature and voltage.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	1.5–5.5 V - enables direct integration into single-cell Li-ion (2.7–4.2 V), alkaline (1.5 V), or regulated 3.3 V/5 V rails without level-shifting.
Quiescent Current	29 µA typ (5 V) - allows >1-year battery life in always-on wearable sensor nodes drawing <10 µA average system current.
Gain Bandwidth	420 kHz typ - supports anti-aliasing and reconstruction filtering up to ~40 kHz with adequate phase margin.
Input Offset Voltage	800 µV max (TSV622A grade) - ensures ≤0.8 mV error in 1 V full-scale bridge sensor interfaces without calibration.
Input Bias Current	1 pA typ - eliminates leakage-induced errors in high-Z pH electrode or photodiode transimpedance amplifiers.
EMI Rejection Ratio	92 dB at 1.8 GHz - suppresses cellular band interference in portable ECG/EEG front-ends without external shielding.
Rail-to-Rail I/O	V_OH ≤ 35 mV from V_CC, V_OL ≤ 35 mV from GND (10 kΩ load) - maximizes dynamic range in low-voltage ADC driver stages.

Pinout & Package

TSV622IST is housed in a MiniSO8 package (3.0 × 4.9 mm, 0.65 mm pitch), optimized for space-constrained portable PCBs with thermal resistance R_thJA = 113 °C/W.

Pin	Circuit Role	Design Meaning
1	In1−	Inverting input of op-amp channel 1 - high-impedance node requiring guard ring routing to minimize leakage.
2	In1+	Non-inverting input of op-amp channel 1 - accepts signals from V_CC− −0.1 V to V_CC+ +0.1 V without clipping.
3	Out1	Output of channel 1 - drives resistive loads ≥5 kΩ or capacitive loads ≤100 pF directly; requires series resistor for larger C_L.
4	V_CC−	Negative supply rail (typically GND) - must be decoupled with 10 nF capacitor placed within 2 mm of pin.
5	In2+	Non-inverting input of channel 2 - electrically identical to Pin 2; shares same common-mode range and bias current specs.
6	In2−	Inverting input of channel 2 - matched to Pin 1 for differential pair operation; critical for common-mode rejection.
7	Out2	Output of channel 2 - independent output stage; no crosstalk specified below −80 dB at 1 kHz.
8	V_CC+	Positive supply rail - accepts 1.5–5.5 V; supplies both amplifiers; shared power path requires low-ESR bulk + local 10 nF decoupling.

Key Features

Feature	Design Value
Rail-to-rail input/output	Enables full-supply-swing signal acquisition and drive in 1.5 V systems, preserving >97% of theoretical dynamic range.
Ultra-low input bias current (1 pA)	Permits use with >100 MΩ source impedances (e.g., dry electrode biosensors) without significant DC error.
EMI-hardened architecture	Integrates on-chip RF filters and layout hardening to maintain 92 dB rejection at 1.8 GHz - reduces need for external ferrites/shielding.
Guaranteed unity-gain stability	Stable operation with 100 pF capacitive load eliminates need for external compensation in sensor buffer configurations.
Extended temperature range	Specified from −40 °C to +125 °C - suitable for automotive cabin modules or industrial handheld test equipment.

Applications

Portable ECG Front-End

Low-Power Gas Sensor Interface

Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in a wrist-worn heart-rate monitor.

IC Role / Device Role / Timing Role: First-stage instrumentation amplifier buffer with rail-to-rail input to capture full common-mode swing from electrode half-cells.

Use Value: 1 pA input bias current prevents electrode polarization drift; 800 µV max V_os limits baseline wander to <0.1% of 1 mV ECG amplitude.

Use Scenario: Conditioning output from a metal-oxide semiconductor (MOS) gas sensor operating at 1.8 V in a battery-powered air quality badge.

IC Role / Device Role / Timing Role: Transconductance amplifier converting sensor resistance change into stable voltage for 12-bit SAR ADC sampling.

Use Value: 420 kHz GBP supports 100 Hz filter cutoff with >60 dB stopband attenuation; 29 µA I_CC extends 2-year coin-cell life.

Medical Pulse Oximeter Analog Front-End

Industrial Battery Monitoring Circuit

Use Scenario: Driving red/IR LED current sources and amplifying photodiode current in a compact pulse oximeter module.

IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) for photodiode signal recovery and reference voltage buffer for LED current control.

Use Value: Rail-to-rail output swings to within 35 mV of rails, maximizing SNR when driving 3.3 V ADC; EMI hardening rejects switching noise from nearby DC-DC converters.

Use Scenario: Measuring cell voltage and temperature in a 4-cell Li-ion pack using high-impedance divider networks and thermistor bridges.

IC Role / Device Role / Timing Role: Precision difference amplifier for cell voltage monitoring and buffer for thermistor voltage division.

Use Value: 800 µV max V_os ensures <0.5 mV measurement error at 4.2 V; −40 °C to +125 °C rating covers under-hood automotive environments.

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
MCP6022-E/SN	Higher supply current (100 µA), wider GBW (1 MHz), but only 1.8–6.0 V operation and no EMI hardening.	Better for higher-speed active filters; unsuitable for EMI-noisy portable medical devices.	Choose when speed > power savings, and EMI environment is benign.
TLV9002IDR	Lower V_os (0.75 mV max), lower I_Q (170 nA), but reduced GBW (1 MHz) and no guaranteed 100 pF capacitive load drive.	Preferred for nano-power sensor nodes where bandwidth <100 kHz suffices and EMI immunity is secondary.	Choose for ultra-low-quiescent designs where 420 kHz GBW is excessive and EMI risk is low.

Compared with MCP6022-E/SN and TLV9002IDR, the TSV622IST uniquely balances 420 kHz bandwidth, 29 µA quiescent current, and 92 dB EMI rejection - making it optimal for battery-powered medical sensors requiring both precision and robustness in noisy RF environments.

Availability

TSV622IST is available at Aetrix Electronics and suitable for portable medical devices, battery-powered IoT sensors, and low-voltage industrial data loggers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TSV622IST 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 sensor solutions for industrial, automotive, and consumer markets.

The TSV62x series belongs to ST's precision low-power op-amp product line, engineered specifically for energy-constrained, high-accuracy signal conditioning in portable and medical electronics where rail-to-rail operation and EMI resilience are mandatory.

FAQ

Is the TSV622IST pin-compatible with other packages in the TSV62x family?

No. The TSV622IST uses MiniSO8 (8-pin), while TSV622 variants exist in SO8 and TSSOP8 footprints. Pinouts differ across packages - MiniSO8 has standard dual-op-amp configuration (Pins 1–4 and 5–8), but SO8 and TSSOP8 may assign shutdown or enable pins not present in this variant. Always verify mechanical drawings before board reuse.

Does the TSV622IST support shutdown mode?

No. Shutdown functionality is only available in the TSV623 (dual with two SHDN pins) and TSV625 (quad with two SHDN pins) variants. The TSV622IST lacks dedicated shutdown terminals and operates continuously when powered. For power-gated applications, external MOSFET control of V_CC+ is required.

What is the maximum capacitive load the TSV622IST can drive without oscillation?

The TSV622IST is unity-gain stable with up to 100 pF capacitive load per output, as verified in the datasheet (Figure 6, phase margin ≥40°). Driving >100 pF requires adding a series resistor (e.g., 10–100 Ω) between output and load to isolate capacitance and restore stability - values should be validated via bench testing and SPICE simulation using ST's macromodel.

Can the TSV622IST operate from a 1.5 V supply while maintaining full specifications?

Yes. The TSV622IST is fully characterized and guaranteed over 1.5–5.5 V. At 1.5 V, it maintains rail-to-rail input/output, 29 µA typical I_CC, 275 kHz min GBP, and 0.1 V/µs min slew rate. Key parameters like V_os and CMRR are slightly degraded versus 5 V but remain within datasheet limits across –40 °C to +125 °C.

TSV622IST 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:: 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:: 8-MiniSO

TSV622IST FAQ

1.How can I place an order for TSV622IST through Aetrix?

Please submit a Request for Quotation (RFQ) for TSV622IST 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 TSV622IST reliable?

The price and inventory of TSV622IST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV622IST is usually 5 days.

3.What payment methods are accepted for TSV622IST?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV622IST transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TSV622IST?

TSV622IST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TSV622IST 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 TSV622IST?

For technical support, including TSV622IST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV622IST requirements.

6.How does Aetrix verify that TSV622IST is sourced from the original manufacturer or authorized distributors?

All TSV622IST 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 TSV622IST meets industry standards.

7.What is the process for return or replacement of TSV622IST?

All TSV622IST units undergo pre-shipment inspection (PSI). If there is an issue with TSV622IST, 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 TSV622IST part is unused and in its original packaging.

Return procedure for TSV622IST:

1.Submit a request within 90 days.

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

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