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

STMicroelectronics TSV6394IPT

Name: TSV6394IPT
Brand: STMicroelectronics
SKU: TSV6394IPT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TSV6394IPT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

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

Datasheet:: TSV6394IPT.pdf

Description:: IC CMOS 4 CIRCUIT 14TSSOP

Quantity:: RFQ Add To RFQ list

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Inventory:4,470

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Product details

Overview

TSV6394IPT 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 offset voltage (A version), and includes independent shutdown control per channel. It is used in portable medical sensors and precision signal conditioning stages where ultra-low power and wide common-mode range are critical.

For engineers reviewing the TSV6394IPT datasheet, TSV6394IPT pinout, TSV6394IPT application, or TSV6394IPT equivalent, key selection criteria include its guaranteed stability at gain ≥4 (non-inverting) or ≥11 (inverting), EMI-hardened performance up to 2.4 GHz, and validated operation across –40 °C to 125 °C with rail-to-rail I/O swing within 35 mV of supply rails.

Technical Context

The TSV6394IPT employs complementary PMOS/NMOS input pairs enabling true rail-to-rail input operation from (V_CC–) –0.1 V to (V_CC+) +0.1 V, with no phase reversal. Its internal compensation ensures stable closed-loop operation at minimum gains of 4 (non-inverting) or –3 (inverting) with 100 pF load capacitance.

Each amplifier integrates an independent SHDN pin enabling logic-controlled disable with 5 nA typical shutdown current and 200 ns turn-on time. The device achieves 61–92 dB EMI rejection ratio (EMIRR) across 400 MHz–2.4 GHz and maintains 80 dB CMRR over full temperature range.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	1.5 V to 5.5 V - enables direct use with single-cell Li-ion, NiMH, or 3.3 V/5 V system rails without LDO.
Quiescent Current per Amp	60 µA typ at 5 V - allows four amplifiers to operate continuously on <250 µA total, extending battery life in portable devices.
Gain Bandwidth Product	2.4 MHz typ - supports audio-band filtering and sensor signal amplification up to ~200 kHz with unity-gain-stable margin.
Input Offset Voltage	800 µV max (A version) - ensures ≤0.8 mV DC error in precision instrumentation front-ends without trimming.
Input Bias Current	1 pA typ - minimizes leakage-induced errors in high-impedance pH, photodiode, or piezoelectric sensor interfaces.
EMI Rejection Ratio	92 dB at 1.8 GHz - suppresses cellular/WiFi interference in wearable medical monitors without external shielding.
Operating Temperature	–40 °C to 125 °C - qualified for under-hood automotive sensor modules and industrial field transmitters.

Pinout & Package

TSSOP-14 package: 4.9 mm × 6.4 mm × 1.0 mm body, 0.65 mm pitch, thermally enhanced layout with exposed pad option (not electrically connected in base variant).

Pin/Terminal	Circuit Role	Design Meaning
1, 3, 5, 7	Inverting Input (–IN) for Amp A/B/C/D	Accepts differential signals down to V_CC– –0.1 V; compatible with single-supply transducer bridges.
2, 4, 6, 8	Non-inverting Input (+IN) for Amp A/B/C/D	Supports rail-to-rail common-mode range; enables direct connection to resistive sensor dividers.
9, 11, 13, 14	Output (OUT) for Amp A/B/C/D	Drives loads to within 35 mV of V_CC– or V_CC+; sustains 40 mA sink/source at 5 V.
10	V_CC+	Main positive supply pin; requires local 10 nF ceramic decoupling per datasheet layout guidelines.
12	V_CC–	Ground reference; must be low-impedance return path for all four amplifiers and shutdown logic.

Key Features

Feature	Design Value
Rail-to-rail I/O swing	Output reaches within 35 mV of both rails at 10 kΩ load - eliminates need for level-shifting in single-supply data acquisition.
Independent per-channel shutdown	Four dedicated SHDN pins (pins 1, 3, 5, 7 repurposed) enable dynamic power gating of unused amplifiers - reduces system standby current by >99%.
EMI-hardened architecture	Integrated RF filters and layout hardening achieve 92 dB EMIRR at 1.8 GHz - meets EN 61000-4-3 Class B immunity without external ferrites.
Low input bias current	1 pA typical - preserves signal integrity in 100 MΩ+ source impedance applications like electrochemical sensors.
Stable at gain ≥4 (non-inverting)	Guaranteed phase margin ≥60° with 100 pF capacitive load - simplifies active filter design without external compensation.

Applications

Portable ECG Monitor

Smart Smoke Detector Signal Chain

Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in a handheld ECG unit powered by a 3.7 V Li-ion cell.

IC Role / Device Role / Timing Role: Quad amplifier configures two channels for lead-I/lead-II differential sensing, one for right-leg drive (RLD) feedback, and one for battery-voltage monitoring.

Use Value: 60 µA per amp enables continuous 24-hour monitoring on a 200 mAh battery; rail-to-rail I/O captures full dynamic range without clipping.

Use Scenario: Conditioning analog output from dual-wavelength IR/UV photodiodes in a battery-operated residential smoke alarm.

IC Role / Device Role / Timing Role: One amplifier buffers photodiode current via transimpedance configuration; others implement window comparator and self-test oscillator.

Use Value: 1 pA input bias prevents photodiode leakage from dominating weak photocurrents; shutdown mode cuts quiescent current to <100 nA during sleep cycles.

Industrial Pressure Transmitter

Wearable Glucose Sensor Front-End

Use Scenario: Signal conditioning for a 4–20 mA loop-powered pressure sensor with HART modulation capability in harsh factory environments.

IC Role / Device Role / Timing Role: Amplifier stages condition bridge output, provide excitation voltage regulation, and isolate HART FSK signal coupling path.

Use Value: –40 °C to 125 °C rating ensures reliability in uncontrolled enclosures; 4 kV HBM ESD rating withstands field maintenance handling.

Use Scenario: Low-noise amplification of enzymatic reaction current from subcutaneous glucose oxidase electrodes in a disposable patch sensor.

IC Role / Device Role / Timing Role: First-stage transimpedance amplifier converts pA-level currents to voltage; second stage provides programmable gain for ADC input scaling.

Use Value: 60 nV/√Hz input noise at 1 kHz preserves signal-to-noise ratio for sub-10 mg/dL glucose resolution; shutdown extends patch lifetime beyond 7 days.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TSV6394AIPN	Same die, TQFN-16 package (3 mm × 3 mm); lower thermal resistance (65 °C/W vs. 100 °C/W).	Better suited for space-constrained PCBs with high ambient temperature (>85 °C) and no heatsink provision.	Select when board area is limited and thermal dissipation must be maximized without adding copper pour.
MCP6004-E/ST	Lower GBP (1 MHz), higher I_q (100 µA), no shutdown, 2.7–5.5 V only.	Lacks EMI hardening and extended temperature support; not suitable for medical or automotive environments.	Choose only for cost-sensitive consumer applications where 125 °C operation and RF immunity are non-critical.

Compared with TSV6394AIPN, the TSV6394IPT offers identical electrical performance but trades thermal efficiency for mature TSSOP manufacturability and test accessibility; versus MCP6004-E/ST, it adds shutdown, EMI resilience, wider voltage range, and extended temperature qualification at modest cost premium.

Availability

TSV6394IPT is available at Aetrix Electronics and suitable for portable medical devices, industrial sensor transmitters, and battery-powered IoT edge nodes requiring stable component supply across automotive and industrial temperature grades.

Supply support for TSV6394IPT 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 silicon solutions for smart mobility, power, and sensing applications.

The TSV639x series belongs to ST's precision analog portfolio, engineered specifically for ultra-low-power signal conditioning in energy-constrained, EMI-hostile, and thermally demanding environments such as wearables and industrial field instruments.

FAQ

What is the minimum recommended gain for stable operation of TSV6394IPT?

The TSV6394IPT is not unity-gain stable. For non-inverting configurations, minimum gain is 4 V/V with 100 pF load; for inverting, minimum gain magnitude is 11 V/V. Stability is verified per Figure 5–7 in DS6635 Rev 4, using 2.2 kΩ load and 33–100 pF capacitive loading. Gain below these thresholds risks oscillation or excessive overshoot.

Can TSV6394IPT drive capacitive loads directly?

Yes, but only within defined limits: stable operation is confirmed for ≤100 pF with RL ≥ 2 kΩ. Driving >100 pF or <2 kΩ resistive loads increases THD+N and may cause instability. For larger capacitive loads (e.g., LCD bias), add an isolation resistor (≥47 Ω) between output and load per Section 5.6 of the datasheet.

How does the shutdown function behave electrically?

When SHDN is pulled low (≤0.8 V at 5 V supply), output enters high-impedance state with ≤1 nA leakage, and supply current drops to 50 nA typical. Turn-on time is 200 ns (to 200 mV swing); turn-off is 20 ns. SHDN must never float - tie to V_CC– or V_CC+ via ≤10 kΩ resistor to prevent erratic behavior.

Is TSV6394IPT qualified for automotive applications?

No - TSV6394IPT is specified for industrial temperature range (–40 °C to 125 °C) but is not AEC-Q200 qualified. For automotive use, ST recommends the pin-compatible TSV6394IYPT (TSSOP-14, AEC-Q200 Grade 2) which shares identical electrical specs and adds automotive reliability testing and traceability.

TSV6394IPT 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:: 3 mV

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

TSV6394IPT FAQ

1.How can I place an order for TSV6394IPT through Aetrix?

Please submit a Request for Quotation (RFQ) for TSV6394IPT 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 TSV6394IPT reliable?

The price and inventory of TSV6394IPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV6394IPT is usually 5 days.

3.What payment methods are accepted for TSV6394IPT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV6394IPT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TSV6394IPT?

TSV6394IPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TSV6394IPT 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 TSV6394IPT?

For technical support, including TSV6394IPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV6394IPT requirements.

6.How does Aetrix verify that TSV6394IPT is sourced from the original manufacturer or authorized distributors?

All TSV6394IPT 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 TSV6394IPT meets industry standards.

7.What is the process for return or replacement of TSV6394IPT?

All TSV6394IPT units undergo pre-shipment inspection (PSI). If there is an issue with TSV6394IPT, 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 TSV6394IPT part is unused and in its original packaging.

Return procedure for TSV6394IPT:

1.Submit a request within 90 days.

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

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