Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

STMicroelectronics TSV851AICT

Name: TSV851AICT
Brand: STMicroelectronics
SKU: TSV851AICT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: TSV851AICT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 5-TSSOP, SC-70-5, SOT-353

Datasheet:: TSV851AICT.pdf

Description:: IC OPAMP GP 1 CIRCUIT SC70-5

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,845

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

TSV851AICT from STMicroelectronics is a single-channel, rail-to-rail output operational amplifier with shutdown functionality, designed for precision signal conditioning in low-voltage, power-constrained systems. It delivers 1.3 MHz gain bandwidth, 0.8 mV max input offset voltage at 25 °C, 180 µA max supply current per channel at 5 V, and operates from 2.3 V to 5.5 V across –40 °C to +125 °C - enabling use in automotive sensor front-ends and portable medical monitors.

For engineers reviewing the TSV851AICT datasheet, TSV851AICT pinout, TSV851AICT application, or TSV851AICT equivalent, key selection criteria include its enhanced input offset voltage (vs. standard TSV851), integrated shutdown control (50 nA max quiescent current), rail-to-rail output swing under 10 kΩ load, and AEC-Q100 qualification for automotive signal acquisition stages.

Technical Context

The TSV851AICT implements a CMOS input stage with rail-to-rail output capability, supporting common-mode input range from VCC– – 0.2 V to VCC+ – 1 V without phase reversal. Its shutdown logic is active-low: pulling SHDN to VCC– disables the amplifier and places the output in high-impedance state.

It achieves 60° phase margin and 10 dB gain margin with 200 pF capacitive load, ensuring stable unity-gain operation in active filtering and transducer interface circuits. Input offset voltage drift is specified at 1 µV/°C over –40 °C to +125 °C, supporting uncalibrated accuracy in wide-temperature industrial sensing.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2.3 V to 5.5 V - enables direct operation from single Li-ion or dual alkaline cells without LDO.
Gain Bandwidth Product	1.3 MHz - supports stable closed-loop gain up to ~10× at 100 kHz for sensor amplification.
Input Offset Voltage	0.8 mV max at 25 °C - reduces DC error in precision instrumentation without trimming.
Quiescent Current	180 µA max per channel - extends battery life in always-on monitoring nodes.
Shutdown Current	50 nA max at 25 °C - allows micro-power sleep mode in duty-cycled data loggers.
Rail-to-Rail Output	Swings within 100 mV of rails at 10 kΩ load - maximizes dynamic range in low-voltage ADC driver stages.
Operating Temperature	–40 °C to +125 °C - validated for under-hood automotive and industrial control environments.

Pinout & Package

TSV851AICT is housed in a 5-pin SC70-5 (SOT323-5) package - a 2.0 mm × 1.25 mm surface-mount outline with 0.65 mm pitch, optimized for space-constrained PCBs in portable and automotive modules.

Pin/Terminal	Circuit Role	Design Meaning
1 - IN+	Non-inverting input	Accepts input signals down to VCC– – 0.2 V; supports ground-referenced sensor interfaces.
2 - IN−	Inverting input	Differential input node; matched to IN+ for <2 µV/°C common-mode rejection drift.
3 - OUT	Amplifier output	Rail-to-rail capable; sinks/sourses ≥15 mA; high-Z during shutdown.
4 - VCC−	Negative supply	Ground reference for single-supply operation; tied to system GND in most applications.
5 - SHDN	Shutdown control	Active-low enable; must be pulled to VCC− to disable; 0.5 V max logic low threshold.

Key Features

Feature	Design Value
Low-power shutdown	Reduces supply current to ≤50 nA, enabling >1-year battery life in wake-on-event sensor nodes.
Enhanced input offset	0.8 mV max (vs. 4 mV for standard TSV851) improves baseline accuracy in medical ECG front-ends.
Automotive qualification	AEC-Q100 Grade 1 certified - guaranteed performance from –40 °C to +125 °C for engine control modules.
Rail-to-rail output	Delivers full 2.3 V output swing on 2.7 V supply - preserves SNR when driving 12-bit SAR ADCs.
High ESD tolerance	4 kV HBM (non-SHDN pins), 3.5 kV HBM (SHDN pin) - withstands handling and board-level transients.

Applications

Automotive Cabin Pressure Sensor Interface

Portable Blood Glucose Meter Analog Front-End

Use Scenario: Amplifying millivolt-level output from piezoresistive pressure sensors in HVAC control units.

IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with shutdown during vehicle sleep mode.

Use Value: 0.8 mV max V_IO avoids calibration; 50 nA shutdown current prevents battery drain over weeks of parking.

Use Scenario: Conditioning electrochemical current from glucose test strips before ADC sampling.

IC Role / Device Role / Timing Role: Transimpedance amplifier with rail-to-rail output driving 3.3 V ADC reference.

Use Value: 2.3 V minimum supply enables direct connection to coin-cell battery; 1.3 MHz GBP supports fast strip response.

Industrial Thermocouple Cold-Junction Compensation

Smart Smoke Detector CO Sensor Signal Chain

Use Scenario: Amplifying RTD voltage in cold-junction compensation circuit for K-type thermocouples.

IC Role / Device Role / Timing Role: Low-drift buffer and gain stage operating across –40 °C to +85 °C ambient.

Use Value: 1 µV/°C V_IO drift minimizes temperature-induced measurement error; AEC-Q100 grade ensures reliability.

Use Scenario: Amplifying low-current output from electrochemical CO sensors in battery-powered detectors.

IC Role / Device Role / Timing Role: Low-noise, low-power transimpedance amplifier with periodic wake-up via SHDN pin.

Use Value: 30 nV/√Hz input noise preserves weak sensor signal; shutdown mode extends 10-year battery life.

Equivalent & Alternatives

The following parts are listed as comparable options for similar operational amplifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TSV851ICT	Standard version without shutdown; 4 mV max V_IO at 25 °C; same GBW and supply range.	Lacks power-gating capability; unsuitable for battery sleep modes requiring sub-µA quiescent current.	Select when shutdown is unnecessary and lowest possible cost is prioritized in always-on systems.
LMV821IDBVR	5.5 MHz GBW; 1.5 mV max V_IO; no shutdown; 2.7 V to 5.5 V supply; not AEC-Q100 qualified.	Better bandwidth for AC-coupled signal paths, but higher offset and no automotive qualification.	Choose for non-automotive portable audio or sensor hubs where speed outweighs precision and qualification.

Compared with TSV851ICT, the TSV851AICT trades slightly higher cost for critical shutdown control and tighter offset - essential for automotive and long-life battery systems. Versus LMV821IDBVR, it sacrifices bandwidth for guaranteed automotive reliability and lower DC error in DC-critical measurement chains.

Availability

TSV851AICT is available at Aetrix Electronics and suitable for automotive signal conditioning, portable medical instrumentation, and industrial sensor interface applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TSV851AICT 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 TSV85x series belongs to ST's precision analog portfolio, engineered specifically for low-voltage, low-power, high-accuracy signal conditioning in harsh-environment applications - including AEC-Q100-compliant automotive subsystems and battery-operated medical devices.

FAQ

What is the maximum capacitive load the TSV851AICT can drive while maintaining stability?

The TSV851AICT maintains ≥60° phase margin with up to 200 pF capacitive load when configured as a unity-gain buffer with 100 kΩ feedback resistor. For loads exceeding 200 pF, external isolation resistance (e.g., 10 Ω–50 Ω in series with output) is recommended to preserve stability in active filter or ADC driver applications.

Does the SHDN pin require a pull-up resistor, and what is its input leakage current?

Yes - the SHDN pin must never float and should be actively driven or pulled to VCC+ (for enable) or VCC− (for shutdown). Its input leakage is ≤10 pA at both logic high and low states, enabling direct GPIO control from ultra-low-power MCUs without additional biasing components.

How does the input common-mode range behave near the negative rail?

The input common-mode range extends to VCC− – 0.2 V, allowing the IN+ and IN− pins to accept signals 200 mV below ground in single-supply configurations. This supports true ground-sensing in bridge-based sensor interfaces without level-shifting circuitry.

Is the TSV851AICT pin-compatible with other SC70-5 op-amps like the TSZ121 or MCP6001?

No - although all use SC70-5 packaging, pin assignments differ: TSV851AICT places SHDN on pin 5, whereas TSZ121 uses pin 5 for VCC+, and MCP6001 assigns pin 5 to output. Direct replacement requires PCB redesign; functional substitution demands verification of signal routing and power sequencing.

TSV851AICT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 5-TSSOP, SC-70-5, SOT-353

Packaging:: Tape & Reel (TR)

Product Status:: Active

Amplifier Type:: General Purpose

Number of Circuits:: 1

Output Type:: Rail-to-Rail

Slew Rate:: 0.7V/µs

Gain Bandwidth Product:: 1.3 MHz

-3db Bandwidth:: -

Current - Input Bias:: 27 nA

Voltage - Input Offset:: 800 µV

Current - Supply:: 130µA

Current - Output / Channel:: 70 mA

Voltage - Supply Span (Min):: 2.5 V

Voltage - Supply Span (Max):: 5.5 V

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SC-70-5

TSV851AICT FAQ

1.How can I place an order for TSV851AICT through Aetrix?

Please submit a Request for Quotation (RFQ) for TSV851AICT 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 TSV851AICT reliable?

The price and inventory of TSV851AICT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV851AICT is usually 5 days.

3.What payment methods are accepted for TSV851AICT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV851AICT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TSV851AICT?

TSV851AICT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TSV851AICT 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 TSV851AICT?

For technical support, including TSV851AICT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV851AICT requirements.

6.How does Aetrix verify that TSV851AICT is sourced from the original manufacturer or authorized distributors?

All TSV851AICT 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 TSV851AICT meets industry standards.

7.What is the process for return or replacement of TSV851AICT?

All TSV851AICT units undergo pre-shipment inspection (PSI). If there is an issue with TSV851AICT, 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 TSV851AICT part is unused and in its original packaging.

Return procedure for TSV851AICT:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…