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Texas Instruments TLC374INE4
- Part No.:
- TLC374INE4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- -
- Datasheet:
-
TLC374INE4.pdf
- Description:
- COMPARATOR, 4 FUNC, 7000UV OFFSE
- Quantity:
- Payment:
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Inventory:825
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Product details
Overview
TLC374INE4 from Texas Instruments is a LinCMOS™ quadruple differential comparator IC designed for single- or dual-supply operation across 2 V to 18 V. It delivers 200 ns typical response time (TTL-level input step), 5 pA typical input bias current, and 0.3 mA typical supply current at 5 V - enabling precision threshold detection in battery-powered sensor interfaces and industrial control logic.
For engineers reviewing the TLC374INE4 datasheet, TLC374INE4 pinout, TLC374INE4 application, or TLC374INE4 equivalent, this page provides verified package mapping (14-pin PDIP, N package), temperature-rated performance (–40°C to +85°C), open-drain output compatibility with TTL/MOS/CMOS, and pin-compatible alternatives to LM339.
Technical Context
The TLC374INE4 integrates four independent comparators on a single LinCMOS™ die, each featuring n-channel open-drain outputs that support wired-AND logic configurations. Its input stage achieves 10¹² Ω typical input impedance and rail-to-rail common-mode range down to ground - allowing direct interfacing with high-impedance sources like thermistors or photodiodes without level-shifting.
ESD protection is implemented via TI's patented dual-path circuitry (human-body model rated at 1000 V), and input offset voltage stability is specified at ≤0.23 µV/month including first 30 days. The device operates with supply voltages as low as 2 V while maintaining full functionality across its –40°C to +85°C industrial temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 18 V - supports single-supply systems (e.g., 3.3 V or 5 V rails) and dual-supply configurations where |VDD − VSS| ≥ 2 V. |
| Input Bias Current | 5 pA typ - enables use with megaohm-level source impedances without significant error voltage. |
| Response Time | 200 ns typ (TTL-level input step) - suitable for medium-speed digital signal conditioning and window comparator timing. |
| Input Offset Voltage | 5 mV max at 25°C - ensures reliable switching at small differential inputs when used with precision reference voltages. |
| Output Configuration | N-channel open-drain - allows flexible pull-up selection (e.g., 3.3 V, 5 V, or 12 V) and wired-AND bus implementation. |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments including motor drives and PLC I/O modules. |
| ESD Rating | 1000 V HBM - internal protection reduces need for external ESD components in board-level design. |
Pinout & Package
Package: 14-pin plastic DIP (N package), through-hole mounting, RoHS-compliant lead finish (NiPdAu), no internal connections on pins 5, 6, 12, and 13 per datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1IN− | Inverting input of comparator 1 - referenced against 1IN+ to determine output state. |
| 2 | 1IN+ | Non-inverting input of comparator 1 - accepts analog threshold or sensor signal. |
| 3 | 1OUT | Open-drain output of comparator 1 - requires external pull-up; sinks up to 16 mA. |
| 4 | 2IN− | Inverting input of comparator 2 - electrically isolated from other channels. |
| 5 | NC | No internal connection - left unconnected; no routing required on PCB. |
| 6 | NC | No internal connection - floating pin; must not be tied to any net. |
| 7 | GND | Ground reference for all comparators and supply return path. |
| 8 | 3IN− | Inverting input of comparator 3 - supports independent voltage monitoring per channel. |
| 9 | 3IN+ | Non-inverting input of comparator 3 - configurable for hysteresis or reference comparison. |
| 10 | 3OUT | Open-drain output of comparator 3 - compatible with mixed-voltage logic families. |
| 11 | 4IN+ | Non-inverting input of comparator 4 - enables four-channel parallel sensing. |
| 12 | NC | No internal connection - unused pad; no electrical function. |
| 13 | NC | No internal connection - mechanical placeholder; no routing needed. |
| 14 | VDD | Positive supply rail - powers all four comparators; decoupling capacitor recommended. |
Key Features
| Feature | Design Value |
|---|---|
| LinCMOS™ process technology | Enables ultra-low input bias current (5 pA typ) and high input impedance (>10¹² Ω), critical for high-Z sensor interfacing. |
| Single/dual-supply flexibility | Operates from 2 V to 18 V supply or split supplies with ≥2 V total differential - simplifies power architecture in mixed-rail systems. |
| Wired-AND output capability | Four independent open-drain outputs allow shared pull-up bus for priority encoding or alarm consolidation. |
| Stable long-term offset | Input offset voltage drift ≤0.23 µV/month - maintains accuracy over time in calibration-critical applications. |
| Pin compatibility with LM339 | Direct drop-in replacement in existing LM339 layouts - eliminates PCB redesign for upgrade paths. |
Applications
| Overvoltage Protection Circuit | Multi-Zone Temperature Monitoring |
|---|---|
Use Scenario: Detecting when DC bus voltage exceeds safe operating limits in power supplies or motor drives. IC Role / Device Role / Timing Role: Comparator 1 monitors bus voltage against a precision reference; output triggers shutdown logic. Use Value: 200 ns response ensures fast fault isolation before downstream component damage occurs. |
Use Scenario: Simultaneous monitoring of four temperature sensors (e.g., thermistors) in HVAC or industrial ovens. IC Role / Device Role / Timing Role: Each comparator compares one sensor output to a fixed threshold, generating discrete zone alarms. Use Value: 5 pA input bias avoids loading high-resistance thermistor networks, preserving measurement accuracy. |
| Programmable Logic Threshold Detector | Industrial Level-Shifter Interface |
Use Scenario: Converting analog control signals (e.g., 0–10 V) into clean digital enable/disable commands for actuators. IC Role / Device Role / Timing Role: Comparator 2 compares control voltage to user-adjustable potentiometer-based reference. Use Value: Rail-to-rail common-mode input range (down to GND) supports direct interface with unipolar analog sources. |
Use Scenario: Interfacing 5 V microcontroller GPIOs with 12 V industrial fieldbus receivers requiring logic-level translation. IC Role / Device Role / Timing Role: Comparator 4 acts as a level translator using open-drain output pulled to 12 V. Use Value: Open-drain output supports mixed-voltage signaling without additional level-shifting ICs or resistive dividers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quadruple comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339N | Bipolar process; 250 nA input bias current (vs. 5 pA); 1.3 µs typical response time (vs. 200 ns). | Higher power consumption and slower switching limit use in low-power or high-speed designs. | Select LM339N only if cost sensitivity outweighs precision and speed requirements. |
| TLC374CN | Same LinCMOS™ architecture and pinout; rated for 0°C to 70°C (vs. –40°C to +85°C for TLC374INE4). | Not qualified for extended industrial temperature environments; unsuitable for outdoor or under-hood applications. | Choose TLC374CN only for commercial-grade indoor equipment with ambient temperature control. |
Compared with LM339N and TLC374CN, the TLC374INE4 uniquely combines industrial temperature rating, femtoampere-class input bias, and sub-250 ns response - making it optimal for precision, wide-temperature, and low-power embedded sensing.
Availability
TLC374INE4 is available at Aetrix Electronics and suitable for industrial control systems, sensor signal conditioning, and power management circuits requiring stable component supply across extended temperature ranges.
Supply support for TLC374INE4 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
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision linear ICs and industrial-grade reliability.
The TLC374INE4 belongs to TI's LinCMOS™ comparator family, engineered specifically for high-impedance, low-power, and wide-supply applications in industrial automation, test equipment, and power system monitoring.
FAQ
What is the maximum supply voltage for the TLC374INE4?
The TLC374INE4 supports an absolute maximum supply voltage of 18 V. Its recommended operating range is 3 V to 16 V for the TLC374I grade. Operation beyond 18 V risks permanent damage, and sustained operation above 16 V may degrade long-term reliability even if within absolute ratings. Always include appropriate overvoltage protection in the power path for the TLC374INE4.
Does the TLC374INE4 require external pull-up resistors on its outputs?
Yes, the TLC374INE4 features n-channel open-drain outputs that require external pull-up resistors to establish a defined high logic level. Typical values range from 4.7 kΩ to 10 kΩ depending on rise time and load requirements. The pull-up voltage may differ from VDD (e.g., 3.3 V pull-up with 5 V VDD), enabling level translation - a key design feature of the TLC374INE4.
Is the TLC374INE4 pin-compatible with the LM339 series?
Yes, the TLC374INE4 uses the same 14-pin PDIP footprint and identical pin assignments as the LM339, including GND (pin 7), VDD (pin 14), and all input/output terminals. This allows direct PCB-level replacement without layout changes, though designers must verify that the improved performance (e.g., lower input bias, faster response) of the TLC374INE4 does not require adjustments to surrounding circuitry.
What is the input common-mode voltage range of the TLC374INE4?
The TLC374INE4 supports a common-mode input voltage range from 0 V (ground) to VDD − 1.5 V across its full operating temperature range. At VDD = 5 V, this spans 0 V to 3.5 V; at VDD = 12 V, it extends to 0 V to 10.5 V. This rail-to-ground capability enables direct interfacing with single-ended sensors and unipolar signal sources without level-shifting circuitry in the TLC374INE4 application.
How is ESD protection implemented in the TLC374INE4?
The TLC374INE4 incorporates Texas Instruments' patented dual-path ESD protection circuitry, rated to 1000 V per human-body model (HBM). It uses active clamping transistors (Q1/Q2) and diodes (D1–D3) to safely shunt positive and negative transients away from sensitive gate oxides. Unlike basic diode clamps, this architecture minimizes post-ESD leakage - preserving the TLC374INE4's 5 pA input bias current specification after handling events.
TLC374INE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- -
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- -
- Number of Elements:
- -
- Output Type:
- -
- Voltage - Supply, Single/Dual (±):
- -
- :
- -
- Voltage - Input Offset (Max):
- -
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- -
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- :
- -
TLC374INE4 FAQ
1.How can I place an order for TLC374INE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC374INE4 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 TLC374INE4 reliable?
The price and inventory of TLC374INE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC374INE4 is usually 5 days.
3.What payment methods are accepted for TLC374INE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC374INE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC374INE4?
TLC374INE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC374INE4 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 TLC374INE4?
For technical support, including TLC374INE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC374INE4 requirements.
6.How does Aetrix verify that TLC374INE4 is sourced from the original manufacturer or authorized distributors?
All TLC374INE4 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 TLC374INE4 meets industry standards.
7.What is the process for return or replacement of TLC374INE4?
All TLC374INE4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC374INE4, 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 TLC374INE4 part is unused and in its original packaging.
Return procedure for TLC374INE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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