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Home > Products > Integrated Circuits (ICs) > Linear > Comparators

STMicroelectronics TS374IDT

Name: TS374IDT
Brand: STMicroelectronics
SKU: TS374IDT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS374IDT

Manufacturer:: STMicroelectronics

Category:: Comparators

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: TS374IDT.pdf

Description:: IC COMPARATOR 4 DIFF 14SO

Quantity:: RFQ Add To RFQ list

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Inventory:16,310

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Product details

Overview

TS374IDT from STMicroelectronics is a quad CMOS voltage comparator with rail-to-rail input common-mode range including ground, 1 pA typical input bias current, 200 ns typical response time, and 0.1 mA supply current per comparator-designed for low-power precision sensing in battery-powered instrumentation.

For engineers reviewing the TS374IDT datasheet, TS374IDT pinout, TS374IDT application, or TS374IDT equivalent, key selection criteria include ultra-low input bias current (1 pA typ), single-supply operation down to 3 V, TTL/MOS/CMOS-compatible outputs, and guaranteed -40°C to +125°C industrial temperature range.

Technical Context

The TS374IDT integrates four independent comparators fabricated using ST's silicon-gate LinMOS process, enabling high input impedance (10¹² Ω typ) and low power consumption without sacrificing speed. Each comparator features input offset voltage ≤12 mV and input common-mode range extending from ground to V_CC–2.25 V at full temperature range.

It operates from single supplies (3–16 V) or dual supplies (±1.5 V to ±8 V), with output saturation voltage of 150 mV typ into 4 mA load and fast propagation delay (200 ns typ) under TTL-level input step conditions with 5 mV overdrive.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	3 V to 16 V single supply or ±1.5 V to ±8 V dual supply - supports direct interface with 3.3 V and 5 V logic, plus legacy ±5 V systems.
Input Bias Current	1 pA typ - enables high-impedance sensor interfacing (e.g., photodiode, pH electrode) without signal loading.
Response Time	200 ns typ - ensures reliable detection of fast transients in overvoltage protection and pulse-width discrimination circuits.
Input Offset Voltage	12 mV max - defines minimum detectable differential voltage across inputs at full operating temperature range.
Output Compatibility	TTL/MOS/CMOS - allows direct connection to microcontroller GPIOs, FPGA I/O banks, and logic gates without level-shifting.
Operating Temperature	-40°C to +125°C - qualified for under-hood automotive, industrial motor control, and outdoor IoT edge nodes.
Supply Current per Comparator	0.1 mA - enables four-channel comparison in always-on monitoring systems with sub-500 µA total quiescent draw.

Pinout & Package

TS374IDT is housed in a 14-pin SO (Small Outline) plastic micropackage (SO14), measuring 8.75 mm × 6.2 mm × 1.75 mm, with 1.27 mm pitch and gull-wing leads.

Pin/Terminal	Circuit Role	Design Meaning
1	Inverting Input, Comparator 1	Accepts reference or inverted signal path for first comparator stage.
2	Non-inverting Input, Comparator 1	Accepts sensed signal for threshold comparison against pin 1.
3	Output, Comparator 1	Open-drain compatible CMOS/TTL output; sinks up to 4 mA.
4	V_CC– (GND)	Ground reference for dual-supply operation or system ground in single-supply mode.
5	Non-inverting Input, Comparator 2	Second comparator's high-side input for independent signal evaluation.
6	Inverting Input, Comparator 2	Second comparator's low-side input, configurable as reference or feedback node.
7	Output, Comparator 2	Independent digital output for second channel; no internal pull-up required.
8	V_CC+	Positive supply rail; supports 3–16 V operation with internal regulation tolerance.
9	Inverting Input, Comparator 3	Third comparator input pair enables multi-threshold monitoring (e.g., under/over-voltage windows).
10	Non-inverting Input, Comparator 3	Paired with pin 9 to form third independent decision node.
11	Output, Comparator 3	Dedicated output for third channel; electrically isolated from other outputs.
12	Non-inverting Input, Comparator 4	Fourth comparator input for redundancy, fault voting, or sequential logic triggering.
13	Inverting Input, Comparator 4	Completes fourth independent comparator pair with pin 12.
14	Output, Comparator 4	Final output channel; supports parallel or cascaded comparator architectures.

Key Features

Feature	Design Value
Rail-to-rail input common-mode range including GND	Enables direct sensing of signals referenced to ground (e.g., current-sense shunt, thermistor dividers) without level-shifting circuitry.
1 pA typical input bias current	Preserves accuracy in high-source-impedance applications such as capacitive touch sensors and electrochemical measurement front-ends.
200 ns typical propagation delay	Supports real-time response in overcurrent trip circuits and digital pulse edge detection at >1 MHz rates.
0.1 mA supply current per comparator	Allows four-channel voltage monitoring in energy-constrained devices (e.g., wireless sensor nodes) with <500 µA total IQ.
TTL/MOS/CMOS output compatibility	Eliminates need for external buffer stages when interfacing with microcontrollers, FPGAs, or discrete logic families.

Applications

Battery Voltage Monitor

Overvoltage Protection Circuit

Use Scenario: Monitoring Li-ion cell voltage during charging/discharging in portable medical devices.

IC Role / Device Role / Timing Role: Quad comparator implements undervoltage lockout (UVLO), overvoltage cutoff (OVP), charge-complete flag, and thermal warning threshold detection.

Use Value: Single IC replaces four discrete comparators and reduces PCB area by >60% while maintaining 1 pA input leakage integrity.

Use Scenario: Safeguarding 12 V automotive ECUs against transient surges exceeding 15.5 V.

IC Role / Device Role / Timing Role: Configured as window comparator with hysteresis to trigger MOSFET gate shutdown within 200 ns of overvoltage event.

Use Value: Fast 200 ns response prevents downstream component damage during load-dump transients (ISO 7637-2 Pulse 5a).

Industrial Sensor Interface

Programmable Logic Threshold Detector

Use Scenario: Converting analog outputs from RTD or strain gauge bridges into digital status flags for PLC input modules.

IC Role / Device Role / Timing Role: Each comparator compares bridge output against precision reference voltages to generate fault, normal, warning, and calibration modes.

Use Value: 1 pA input bias avoids measurement error in 100 kΩ+ bridge arms; rail-to-rail input accommodates 0–10 V sensor spans directly.

Use Scenario: Implementing user-configurable trip points in programmable power supplies via DAC-controlled reference inputs.

IC Role / Device Role / Timing Role: Four comparators compare output voltage against independently set DAC references to enable multi-zone regulation and sequencing.

Use Value: Independent input pairs allow simultaneous monitoring of V_OUT, current sense, temperature, and auxiliary rails without multiplexing delay.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad CMOS voltage comparator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
LM339DT	Bipolar input stage; 250 nA input bias current (vs. 1 pA); wider supply range (2–36 V); slower response (1.3 µs typ).	Suitable for cost-sensitive industrial controls where ultra-low input bias is not required.	Select when interfacing with low-impedance sources and higher supply voltages are present.
TLV3704IPW	CMOS input; 1 pA bias current; rail-to-rail output; lower supply current (80 µA/comparator); but only rated to +85°C.	Preferred for battery-powered consumer electronics requiring extended battery life and compact layout.	Select when ambient temperature stays below 85°C and output drive into high-impedance loads is critical.

Compared with LM339DT and TLV3704IPW, TS374IDT uniquely balances ultra-low input bias (1 pA), industrial temperature range (-40°C to +125°C), and 200 ns speed-making it optimal for automotive sensor fusion and harsh-environment precision monitoring where leakage and thermal stability are non-negotiable.

Availability

TS374IDT is available at Aetrix Electronics and suitable for battery management systems, automotive body controllers, industrial sensor signal conditioning, and programmable power supply monitoring requiring stable component supply across extended temperature ranges.

Supply support for TS374IDT 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 automotive, industrial, and power management solutions with vertical manufacturing capabilities and broad analog/mixed-signal portfolio.

The TS374 belongs to ST's precision analog comparators product line, engineered specifically for low-power, high-accuracy threshold detection in safety-critical and energy-constrained systems.

FAQ

Does TS374IDT support true rail-to-rail output swing?

No. TS374IDT outputs are CMOS-compatible but not rail-to-rail: low-level saturation voltage is 150 mV typ at 4 mA sink, and high-level output reaches within ~0.5 V of V_CC+. It drives TTL/CMOS logic reliably but requires external pull-up for full V_CC+ high-state in open-drain configurations.

Can TS374IDT operate with a 3.3 V single supply?

Yes. TS374IDT is fully specified from 3 V to 16 V single supply. At 3.3 V, input common-mode range extends from 0 V to 1.05 V (V_CC+–2.25 V), and output low saturation remains ≤400 mV at 4 mA load-enabling direct interface with 3.3 V microcontrollers.

Is the input offset voltage of TS374IDT laser-trimmed?

No. TS374IDT uses standard LinMOS process without laser trimming; input offset voltage is 12 mV maximum over temperature. For sub-mV precision, external nulling or auto-zero architectures are recommended-this device targets low-power, not ultra-high-precision, applications.

What is the maximum capacitive load the TS374IDT output can drive?

TS374IDT is characterized with 15 pF load in switching tests. Driving >50 pF may degrade response time beyond 200 ns and increase overshoot. For heavier loads, add a series resistor (e.g., 100 Ω) near the output pin to isolate capacitance and maintain stability.

TS374IDT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 14-SOIC (0.154", 3.90mm Width)

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Active

Type:: Differential

Number of Elements:: 4

Output Type:: CMOS, MOS, Open-Drain, TTL

Voltage - Supply, Single/Dual (±):: 3V ~ 16V, ±1.5V ~ 8V

:: 10mV @ 5V

Voltage - Input Offset (Max):: 1pA @ 5V

Current - Input Bias (Max):: 20mA

Current - Output (Typ):: 250µA

Current - Quiescent (Max):: -

CMRR, PSRR (Typ):: -

Propagation Delay (Max):: -

Hysteresis:: -40°C ~ 125°C

Operating Temperature:: -

Grade:: -

Qualification:: Surface Mount

:: 14-SO

TS374IDT FAQ

1.How can I place an order for TS374IDT through Aetrix?

Please submit a Request for Quotation (RFQ) for TS374IDT 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 TS374IDT reliable?

The price and inventory of TS374IDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS374IDT is usually 5 days.

3.What payment methods are accepted for TS374IDT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS374IDT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS374IDT?

TS374IDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS374IDT 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 TS374IDT?

For technical support, including TS374IDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS374IDT requirements.

6.How does Aetrix verify that TS374IDT is sourced from the original manufacturer or authorized distributors?

All TS374IDT 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 TS374IDT meets industry standards.

7.What is the process for return or replacement of TS374IDT?

All TS374IDT units undergo pre-shipment inspection (PSI). If there is an issue with TS374IDT, 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 TS374IDT part is unused and in its original packaging.

Return procedure for TS374IDT:

1.Submit a request within 90 days.

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

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