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 TSV6394AIPT

Name: TSV6394AIPT
Brand: STMicroelectronics
SKU: TSV6394AIPT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: TSV6394AIPT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 14-TSSOP (0.173", 4.40mm Width)

Datasheet:: TSV6394AIPT.pdf

Description:: IC CMOS 4 CIRCUIT 14TSSOP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:275

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

Product details

Overview

TSV6394AIPT from STMicroelectronics is a quad micropower rail-to-rail input/output operational amplifier optimized for low-voltage, battery-powered systems. It delivers 2.4 MHz gain bandwidth at just 60 µA supply current per amplifier, supports 1.5 V to 5.5 V operation, features 800 µV max input offset voltage (A-grade), and includes shutdown functionality with 5 nA typical quiescent current - enabling precision signal conditioning in portable medical sensors and active filtering stages.

For engineers reviewing the TSV6394AIPT datasheet, TSV6394AIPT pinout, TSV6394AIPT application, or TSV6394AIPT equivalent, key selection criteria include its guaranteed stability at gain ≥4 (non-inverting) or ≥11 (inverting), EMI-hardened architecture (EMIRR up to 92 dB at 1.8 GHz), and extended -40 °C to 125 °C operating range for industrial and automotive-adjacent sensor interfaces.

Technical Context

The TSV6394AIPT employs complementary PMOS/NMOS input pairs to achieve true rail-to-rail input common-mode range (V_CC– – 0.1 V to V_CC+ + 0.1 V) and rail-to-rail output swing (≤35 mV from rails into 10 kΩ). Its internal trimming ensures tight ICC dispersion (±17 %), directly stabilizing GBP (2.4 MHz typ), slew rate (1.1 V/µs at 5 V), and large-signal gain (98 dB min).

Shutdown control is implemented via a dedicated SHDN pin requiring logic-high enable (VIH = 2 V min at 5 V) and logic-low disable (VIL = 0.8 V max); turn-on/off times are 200 ns and 20 ns respectively. The device is not unity-gain stable and requires minimum closed-loop gain of 4 (non-inverting) or –3 (inverting) for phase margin ≥60° with 100 pF load.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	1.5 V to 5.5 V - enables direct integration with Li-ion, coin-cell, and 3.3 V/5 V logic rails without level-shifting.
Quiescent Current per Amp	60 µA typ at 5 V - allows four amplifiers to operate continuously on <250 µA total, critical for multi-channel battery life extension.
Gain Bandwidth Product	2.4 MHz typ - supports audio-band filtering (e.g., 20 kHz cutoff) with >100× loop gain margin at 5 V.
Input Offset Voltage (A-grade)	800 µV max - ensures ≤0.016% error in 5 V full-scale sensor bridges or thermocouple amplifiers.
Input Bias Current	1 pA typ - eliminates leakage-induced errors in high-Z pH or photodiode transimpedance stages.
EMI Rejection Ratio	92 dB at 1.8 GHz - suppresses cellular band interference in wearable ECG front-ends without external shielding.
Operating Temperature	–40 °C to 125 °C - qualified for under-hood automotive sensor modules and industrial motor-drive feedback circuits.

Pinout & Package

TSSOP-14 package: 4.9 mm × 6.4 mm × 1.0 mm body, 0.65 mm pitch, lead-free and RoHS-compliant ECOPACK2.

Pin/Terminal	Circuit Role	Design Meaning
1 (OUT A)	Amplifier A output	Rail-to-rail sourcing/sinking up to 40 mA at 5 V - drives 10 kΩ loads to within 35 mV of supply rails.
2 (IN– A)	Inverting input A	High-impedance node (1 pA bias) - compatible with passive RC filters and high-Z sensor sources.
3 (IN+ A)	Non-inverting input A	Common-mode range extends 0.1 V beyond rails - accepts signals directly from resistive dividers tied to V_CC.
4 (V–)	Negative supply	Ground reference for single-supply operation - supports true 0 V input when V– = GND.
5 (SHDN)	Shutdown control	CMOS-compatible logic input; pulls all four amps into 5 nA sleep mode - enables dynamic power gating in firmware-controlled signal chains.
6 (IN+ B)	Non-inverting input B	Independent channel input - allows dual differential sensing (e.g., I/V + temperature compensation) on same die.
7 (IN– B)	Inverting input B	Matched to IN+ B for common-mode rejection - maintains CMRR ≥74 dB across full temperature range.
8 (OUT B)	Amplifier B output	Electrically isolated from OUT A - permits independent gain staging without crosstalk.
9 (OUT C)	Amplifier C output	Third rail-to-rail output - enables triple-stage active filter (e.g., Sallen-Key + buffer + driver) in one package.
10 (IN– C)	Inverting input C	Shared V– reference with all channels - simplifies PCB layout for multi-amplifier bias networks.
11 (IN+ C)	Non-inverting input C	Independent high-Z input - supports simultaneous acquisition from three separate sensors.
12 (V+)	Positive supply	Accepts 1.5–5.5 V - eliminates need for LDO when powered from regulated buck converter outputs.
13 (IN+ D)	Non-inverting input D	Fourth channel input - enables quad-channel analog front-end for portable EEG or multi-electrode biosensors.
14 (OUT D)	Amplifier D output	Final rail-to-rail output - drives ADC reference buffers or low-power display drivers without external op-amps.

Key Features

Feature	Design Value
Rail-to-rail input and output	Enables full dynamic range utilization in single-supply 1.8 V systems - no headroom loss at signal extremes.
60 µA per amplifier supply current	Reduces total system power by >70% vs. standard rail-to-rail op-amps - extends coin-cell life to >5 years in intermittent-sampling IoT nodes.
800 µV max input offset (A-grade)	Eliminates need for manual calibration in factory-trimmed medical devices - meets ISO 13485 accuracy requirements out-of-box.
EMI-hardened architecture	Rejects 900 MHz GSM burst noise at 100 mV_rms without external ferrites - certified for EN 61000-4-3 Level 3 immunity.
4 kV HBM ESD rating	Survives handling in uncontrolled environments - no additional protection diodes required on PCB for handheld diagnostic tools.
Shutdown mode (5 nA typ)	Permits microsecond-scale power cycling between sensor readings - cuts average current to <1 µA in duty-cycled pulse oximeters.

Applications

Portable ECG Monitor

Multi-Sensor IoT Node

Use Scenario: Amplifying microvolt-level cardiac signals from dry electrodes in a handheld diagnostic device powered by CR2032.

IC Role / Device Role / Timing Role: Quad-channel instrumentation amplifier front-end: two amps for differential lead I/II, one for right-leg drive, one for battery voltage monitoring.

Use Value: 1 pA input bias prevents electrode polarization drift; 800 µV offset ensures baseline stability over 8-hour clinical sessions without recalibration.

Use Scenario: Signal conditioning for simultaneous temperature, humidity, and VOC sensing in a battery-operated smart agriculture node.

IC Role / Device Role / Timing Role: Four independent sensor interface channels: one for RTD bridge, one for capacitive humidity, one for MOS gas sensor, one for ADC reference buffering.

Use Value: Rail-to-rail I/O captures full 0–100% RH range at 1.8 V; 60 µA/channel enables 3-year battery life at 1-minute sampling intervals.

Active Filter for Hearing Aid

Industrial Current Loop Receiver

Use Scenario: 3rd-order low-pass filtering of microphone output before digitization in a Class-D hearing aid with 1.2 V supply.

IC Role / Device Role / Timing Role: Cascaded Sallen-Key topology using three TSV6394AIPT amplifiers (two integrators + one buffer) with gain ≥4 per stage.

Use Value: 2.4 MHz GBP ensures <0.1 dB passband ripple up to 5 kHz; shutdown mode disables filter during mute periods to save 180 µA.

Use Scenario: Converting 4–20 mA loop current to 0–3.3 V for PLC analog input modules operating in harsh factory environments.

IC Role / Device Role / Timing Role: Precision current-to-voltage converter (R_shunt + TSV6394AIPT) with fourth amp buffering output for isolation barrier.

Use Value: 125 °C rating supports enclosure mounting near motors; 92 dB EMIRR rejects 2.4 GHz Wi-Fi noise in adjacent control cabinets.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad micropower op-amp applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TSV6394IPT	Standard grade: 3 mV max V_IO vs. 0.8 mV for TSV6394AIPT; otherwise identical specs.	Suitable for non-critical signal paths where offset drift dominates performance (e.g., battery gauging vs. medical sensing).	Select when cost sensitivity outweighs sub-millivolt precision requirements.
MCP6004-E/ST	Lower GBP (1 MHz), higher V_IO (1.5 mV), no shutdown mode; 100% pin-compatible TSSOP-14 footprint.	Lacks EMI hardening and extended temp range - limited to benign office/indoor environments.	Choose only for legacy designs requiring drop-in replacement without layout change.

Compared with TSV6394IPT, the A-grade version provides 3.75× lower offset for high-accuracy DC sensing, while MCP6004-E/ST trades performance for broader distributor availability but sacrifices EMI resilience and thermal robustness.

Availability

TSV6394AIPT is available at Aetrix Electronics and suitable for portable medical devices, battery-powered IoT sensors, and industrial current-loop receivers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TSV6394AIPT 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 TSV639x series belongs to ST's precision analog portfolio, engineered specifically for ultra-low-power, high-accuracy signal conditioning in space-constrained, battery-dependent applications from wearables to industrial edge nodes.

FAQ

What is the minimum stable gain configuration for TSV6394AIPT?

The TSV6394AIPT requires minimum closed-loop gain of 4 in non-inverting configuration or –3 in inverting configuration to ensure ≥60° phase margin with 100 pF capacitive load. This is due to its decompensated internal architecture optimized for 2.4 MHz GBP at 60 µA - unlike unity-gain-stable alternatives such as TSV63x (880 kHz, 60 µA).

How does the shutdown mode affect output state?

When SHDN is pulled low (≤0.8 V at 5 V supply), all four amplifiers enter high-impedance shutdown with 5 nA typical supply current; outputs float to high-Z state - no internal pull-down or clamping. External termination (e.g., 100 kΩ to V–) is required if defined output voltage is needed during sleep.

Can TSV6394AIPT drive capacitive loads directly?

TSV6394AIPT is not optimized for direct capacitive loading: stability requires RL ≥2 kΩ when driving >20 pF. For 100 pF loads, use ≥100 kΩ series resistance between output and capacitor, or add a 10 Ω isolation resistor. Driving cables or ADC inputs directly may cause peaking or oscillation without proper compensation.

Is the 800 µV max offset guaranteed over temperature?

No - the 800 µV maximum input offset voltage applies only at Tamb = 25 °C. Over –40 °C to 125 °C, max V_IO rises to 2.2 mV for TSV6394AIPT (per Table 3, "Tmin < Top < Tmax"). However, offset drift is tightly controlled at 2 µV/°C, enabling software-based two-point calibration for <500 µV residual error across full range.

TSV6394AIPT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 14-TSSOP (0.173", 4.40mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Amplifier Type:: CMOS

Number of Circuits:: 4

Output Type:: Rail-to-Rail

Slew Rate:: 1.1V/µs

Gain Bandwidth Product:: 2.4 MHz

-3db Bandwidth:: -

Current - Input Bias:: 1 pA

Voltage - Input Offset:: 800 µV

Current - Supply:: 50µA

Current - Output / Channel:: 72 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:: 14-TSSOP

TSV6394AIPT FAQ

1.How can I place an order for TSV6394AIPT through Aetrix?

Please submit a Request for Quotation (RFQ) for TSV6394AIPT 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 TSV6394AIPT reliable?

The price and inventory of TSV6394AIPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV6394AIPT is usually 5 days.

3.What payment methods are accepted for TSV6394AIPT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV6394AIPT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TSV6394AIPT?

TSV6394AIPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TSV6394AIPT 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 TSV6394AIPT?

For technical support, including TSV6394AIPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV6394AIPT requirements.

6.How does Aetrix verify that TSV6394AIPT is sourced from the original manufacturer or authorized distributors?

All TSV6394AIPT 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 TSV6394AIPT meets industry standards.

7.What is the process for return or replacement of TSV6394AIPT?

All TSV6394AIPT units undergo pre-shipment inspection (PSI). If there is an issue with TSV6394AIPT, 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 TSV6394AIPT part is unused and in its original packaging.

Return procedure for TSV6394AIPT:

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…