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STMicroelectronics TS374ID
- Part No.:
- TS374ID
- Manufacturer:
- STMicroelectronics
- Category:
- Comparators
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TS374ID.pdf
- Description:
- IC COMPARATOR 4 DIFF 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,526
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Product details
Overview
TS374ID from STMicroelectronics is a quad CMOS voltage comparator with rail-to-rail input (including GND) and TTL/MOS/CMOS-compatible outputs, operating from 3V to 16V single supply or ±1.5V to ±8V dual supply, featuring 0.1mA supply current per comparator, 1pA typical input bias current, and 200ns typical response time. It is used in precision threshold detection for battery-powered sensor interfaces and low-power industrial monitoring systems.
For engineers reviewing the TS374ID datasheet, TS374ID pinout, TS374ID application, or TS374ID equivalent, key selection criteria include input offset voltage (≤12mV), common-mode range (0 to VCC+−2.5V), output saturation voltage (150mV typ), temperature range (−40°C to +125°C), and SO14 package compatibility with automated SMT assembly.
Technical Context
The TS374ID integrates four independent comparators fabricated using ST's silicon-gate LinMOS process, enabling ultra-low power operation without sacrificing speed. Its differential input stage supports common-mode voltages down to ground and up to VCC+−2.5V, and its push-pull output stage delivers 4mA sink capability with 150mV low saturation voltage at 4mA load.
Designed for single-supply systems where ground-referenced sensing is required, it avoids external level-shifting circuitry. The 1pA input bias current and 1012Ω input impedance minimize loading on high-impedance sources such as photodiodes or precision voltage dividers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3V to 16V single supply or ±1.5V to ±8V dual supply - enables direct interface with 3.3V/5V/12V logic and analog rails |
| Input Offset Voltage | 2mV (min), 10mV (typ), 12mV (max) - ensures accurate threshold detection within ±12mV error at room temperature |
| Input Bias Current | 1pA (typ) - preserves signal integrity when driving from MΩ-range sensors or RC timing networks |
| Response Time | 200ns (typ) for TTL-level step - supports fast edge detection in pulse-width monitoring and zero-crossing circuits |
| Output Saturation Voltage | 100mV (min), 400mV (typ), 700mV (max) at 4mA - guarantees clean logic-low output compatible with 5V TTL and 3.3V CMOS inputs |
| Common-Mode Input Range | 0V to VCC+−2.5V - allows direct GND-referenced input sensing without level shifters |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive and industrial control environments |
Pinout & Package
TS374ID is housed in a 14-pin SO (Small Outline) plastic micropackage (SO14), measuring 8.55–8.75mm × 5.8–6.2mm × 1.75mm, with 1.27mm pitch, gull-wing leads, and surface-mount compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input, Comparator 1 | Accepts reference or sensed signal for first comparator; referenced to GND or VCC− |
| 2 | Non-inverting Input, Comparator 1 | Accepts variable input (e.g., sensor output); differential pair with Pin 1 determines output state |
| 3 | Output, Comparator 1 | Push-pull CMOS/TTL-compatible output; sinks 4mA, sources limited current via internal pull-up |
| 4 | VCC− (GND or negative rail) | Power return path; must be connected to system ground or negative supply for dual-rail operation |
| 5 | Inverting Input, Comparator 2 | Dedicated input for second independent comparator; electrically isolated from other channels |
| 6 | Non-inverting Input, Comparator 2 | Second comparator's positive input; supports separate threshold configuration |
| 7 | Output, Comparator 2 | Independent digital output; no internal coupling to other comparator outputs |
| 8 | VCC+ | Main positive supply rail (3–16V); powers all four comparators and output stages |
| 9 | Inverting Input, Comparator 3 | Third comparator input; identical electrical characteristics to Pins 1 and 5 |
| 10 | Non-inverting Input, Comparator 3 | Third comparator's non-inverting node; supports multi-threshold window detection |
| 11 | Output, Comparator 3 | Third independent output; usable for cascaded logic or parallel event flagging |
| 12 | Inverting Input, Comparator 4 | Fourth comparator input; enables full quad functionality in compact layout |
| 13 | Non-inverting Input, Comparator 4 | Final comparator's positive input; supports redundancy or multi-zone monitoring |
| 14 | Output, Comparator 4 | Fourth TTL/CMOS-compatible output; routed separately to avoid fanout limitations |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range including GND | Enables direct interface with 0V-referenced sensors (e.g., thermistors, resistive bridges) without external biasing |
| 1pA typical input bias current | Reduces voltage error in high-impedance divider networks (<1% error at 10MΩ source impedance) |
| 200ns typical propagation delay | Supports reliable detection of pulses ≥500kHz in timing-critical applications like motor commutation feedback |
| 0.1mA supply current per comparator | Allows four-channel threshold monitoring in battery-operated devices with <0.4mA total quiescent draw |
| TTL/MOS/CMOS output compatibility | Drives standard logic families directly-no external pull-ups or level translators needed for 5V or 3.3V systems |
Applications
| Battery Voltage Monitor | Over-Temperature Protection Circuit |
|---|---|
Use Scenario: Monitoring Li-ion cell voltage during charging/discharging to trigger cutoff at 4.2V or 2.8V thresholds. IC Role / Device Role / Timing Role: Quad comparator implements hysteresis-based undervoltage/overvoltage lockout with independent trip points. Use Value: Eliminates need for external op-amps and reference ICs; 1pA bias current prevents battery drain during sleep mode. | Use Scenario: Detecting thermal runaway in power converters using NTC thermistor voltage divider. IC Role / Device Role / Timing Role: Compares thermistor output against four fixed reference voltages to define warning, alarm, and shutdown zones. Use Value: −40°C to +125°C rating ensures reliability across ambient extremes; 200ns response enables rapid shutdown before damage occurs. |
| Industrial Sensor Interface Module | Programmable Logic Controller (PLC) Input Conditioning |
Use Scenario: Converting analog 4–20mA loop signals into discrete ON/OFF status for microcontroller GPIOs. IC Role / Device Role / Timing Role: Each comparator conditions one channel; inputs biased to detect current-derived voltage thresholds. Use Value: Rail-to-rail input accepts 0–5V derived from shunt resistor; low supply current extends module uptime in remote deployments. | Use Scenario: Isolating and digitizing field device signals (e.g., limit switches, proximity sensors) before PLC CPU processing. IC Role / Device Role / Timing Role: Provides noise-immune level translation and debouncing-ready outputs for 24V DC industrial inputs. Use Value: 150mV output saturation ensures robust low-state recognition even with long cable runs and contact resistance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad voltage comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339DT | Bipolar input stage; 250nA input bias current; wider supply range (2–36V); no rail-to-rail input | Higher power consumption (0.8mA/comparator); unsuitable for GND-referenced inputs without bias network | Prefer when higher supply voltage (>16V) or higher output drive (>16mA) is required |
| TLV3704IDR | CMOS input; 1pA bias current; rail-to-rail input/output; lower supply current (38µA/comparator); 3–16V only | Lower power and faster response (1.5µs), but limited to 125°C max junction temperature | Prefer for ultra-low-power battery systems where 125°C ambient suffices and sub-µs latency is unnecessary |
Compared with LM339DT and TLV3704IDR, TS374ID uniquely balances ultra-low bias current, true GND-referenced input, and −40°C to +125°C operation in a cost-effective SO14 package-making it optimal for ruggedized industrial and automotive threshold detection where bipolar alternatives introduce offset drift and CMOS alternatives lack extended temperature margin.
Availability
TS374ID is available at Aetrix Electronics and suitable for battery management systems, industrial temperature monitors, sensor interface modules, and programmable logic controller input conditioning requiring stable component supply across extended temperature ranges.
Supply support for TS374ID 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, designing and manufacturing analog, MCU, power, and sensor solutions for industrial, automotive, and consumer markets.
The TS374 belongs to ST's precision analog comparator product line, engineered specifically for low-power, high-accuracy threshold detection in harsh-environment applications where input bias current, temperature stability, and supply flexibility are critical.
FAQ
Can TS374ID operate from a single 3.3V supply?
Yes. TS374ID is fully specified for single-supply operation from 3V to 16V. At 3.3V, its input common-mode range spans 0V to 0.8V (VCC+−2.5V), and output low saturation remains ≤400mV at 4mA load-ensuring reliable interfacing with 3.3V logic families without level shifting.
Does TS374ID require external pull-up resistors on its outputs?
No. TS374ID features push-pull (totem-pole) outputs capable of both sourcing and sinking current. Its outputs drive high directly to VCC+ and low to ≤400mV at 4mA, eliminating the need for external pull-ups in standard TTL/CMOS interfacing-reducing BOM count and board space.
What is the maximum input differential voltage the TS374ID can tolerate?
The absolute maximum differential input voltage (VID) is ±18V. This rating applies regardless of supply voltage and protects the input stage during transient overvoltage events, such as ESD or inductive kickback, provided the common-mode voltage stays within specified limits (0V to VCC+−2.5V).
How does TS374ID's 1pA input bias current impact high-impedance sensor interfacing?
At 1pA typical bias current, TS374ID introduces less than 1mV error when interfacing with 1MΩ source impedances-and less than 10mV error even at 10MΩ-enabling accurate threshold detection from photodiodes, piezoresistive sensors, or high-ratio voltage dividers without active buffering.
TS374ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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
TS374ID FAQ
1.How can I place an order for TS374ID through Aetrix?
Please submit a Request for Quotation (RFQ) for TS374ID 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 TS374ID reliable?
The price and inventory of TS374ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS374ID is usually 5 days.
3.What payment methods are accepted for TS374ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS374ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS374ID?
TS374ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS374ID 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 TS374ID?
For technical support, including TS374ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS374ID requirements.
6.How does Aetrix verify that TS374ID is sourced from the original manufacturer or authorized distributors?
All TS374ID 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 TS374ID meets industry standards.
7.What is the process for return or replacement of TS374ID?
All TS374ID units undergo pre-shipment inspection (PSI). If there is an issue with TS374ID, 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 TS374ID part is unused and in its original packaging.
Return procedure for TS374ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TS374ID Tags
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