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Texas Instruments TLC374CNG4
- Part No.:
- TLC374CNG4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
TLC374CNG4.pdf
- Description:
- IC COMPARATOR 4 DIFF 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,330
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Product details
Overview
TLC374CNG4 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, 0.3 mA typical supply current at 5 V, and features open-drain n-channel outputs compatible with TTL/MOS/CMOS logic-used in precision voltage monitoring and threshold-detection circuits.
For engineers reviewing the TLC374CNG4 datasheet, TLC374CNG4 pinout, TLC374CNG4 application, or TLC374CNG4 equivalent, this page provides verified package mapping (14-pin PDIP, N package), confirmed LinCMOS process advantages, validated comparator-level electrical specs (VIO ≤ 5 mV, IIB = 5 pA), and real-world design implications of its open-drain output architecture and ground-sensing input range.
Technical Context
The TLC374CNG4 integrates four independent comparators on a single LinCMOS™ die, each with high-impedance inputs (>10¹² Ω) and rail-to-rail common-mode input range including ground. Its internal ESD protection meets 1000-V HBM rating without compromising input leakage.
Each comparator uses an open-drain n-channel output stage, requiring external pull-up resistors to define logic-high level and enabling wired-AND configurations. The device operates over 0°C to 70°C and supports supply voltages from 3 V to 16 V under recommended conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 16 V - Enables direct interface with 3.3 V, 5 V, and 12 V logic systems without level-shifting. |
| Input Offset Voltage (VIO) | ≤ 5 mV at 25°C - Ensures accurate threshold detection within ±5 mV tolerance at room temperature. |
| Input Bias Current (IIB) | 5 pA typical - Allows direct connection to high-impedance sensors (e.g., photodiodes, thermistors) without signal loading. |
| Response Time | 200 ns typical (TTL-level step) - Supports fast edge detection in timing-critical applications like pulse-width monitoring. |
| Output Configuration | Open-drain n-channel - Permits flexible logic-level translation via external pull-up and wired-AND bus implementation. |
| Common-Mode Input Range | 0 V to VDD–1.5 V - Includes ground reference, enabling direct sensing of signals referenced to system ground. |
| ESD Rating | 1000 V HBM - Built-in 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), rated for 0°C to 70°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1IN– | Inverting input of Comparator 1 - Accepts reference or feedback signal for threshold comparison. |
| 2 | 1IN+ | Non-inverting input of Comparator 1 - Receives monitored signal; polarity determines active-high/low output behavior. |
| 3 | 2IN– | Inverting input of Comparator 2 - Independent channel for second voltage comparison task. |
| 4 | 2IN+ | Non-inverting input of Comparator 2 - Enables dual-threshold or window-comparator topologies with external resistors. |
| 5 | 3IN– | Inverting input of Comparator 3 - Supports three independent decision points in compact space-constrained designs. |
| 6 | 3IN+ | Non-inverting input of Comparator 3 - Allows cascaded or parallel analog decision logic without additional ICs. |
| 7 | 4IN– | Inverting input of Comparator 4 - Completes quad-channel capability for multi-zone monitoring (e.g., battery cell balancing). |
| 8 | GND | Ground reference - Shared return path for all comparators and internal circuitry; must be low-impedance. |
| 9 | 4IN+ | Non-inverting input of Comparator 4 - Final input pair enables full utilization of four independent comparisons per package. |
| 10 | 4OUT | Open-drain output of Comparator 4 - Requires external pull-up; sinks current when asserted, floats when inactive. |
| 11 | 3OUT | Open-drain output of Comparator 3 - Compatible with mixed-voltage systems via pull-up to chosen logic rail. |
| 12 | 2OUT | Open-drain output of Comparator 2 - Enables shared bus or OR-ing with other open-drain devices. |
| 13 | 1OUT | Open-drain output of Comparator 1 - Primary output used in most single-comparator configurations. |
| 14 | VDD | Positive supply rail - Powers all four comparators; decoupling capacitor required near pin for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| LinCMOS™ process technology | Enables ultra-low input bias current (5 pA) and high input impedance (>10¹² Ω) for minimal sensor loading. |
| Single/dual-supply operation | Operates from 3 V to 16 V supply or split rails with ≥2 V total differential - simplifies power architecture in mixed-voltage systems. |
| Ground-sensing input range | Common-mode input includes 0 V - eliminates need for level-shifting when monitoring signals referenced to system ground. |
| Wired-AND output capability | Four open-drain outputs allow logical ANDing on shared bus - reduces component count in alarm or status-bus applications. |
| Low supply current | 300 µA typical (four comparators) at 5 V - extends battery life in portable instrumentation and low-power monitoring nodes. |
Applications
| Power Supply Monitoring | Battery Management System |
|---|---|
Use Scenario: Detecting undervoltage lockout (UVLO) and overvoltage conditions in DC-DC converter feedback paths. IC Role / Device Role / Timing Role: Quad comparator performs simultaneous high/low threshold checks on regulated output rails. Use Value: Eliminates discrete transistor-based comparators; leverages 200 ns response to catch fast transients before regulation loop reacts. |
Use Scenario: Cell voltage monitoring and charge/discharge enable control in 4-cell Li-ion packs. IC Role / Device Role / Timing Role: Each comparator monitors one cell's voltage against upper/lower thresholds using resistor dividers. Use Value: 5 pA input bias prevents measurement error from divider current imbalance; open-drain outputs drive MOSFET gates directly. |
| Industrial Sensor Interface | Programmable Logic Controller Input |
Use Scenario: Converting analog sensor outputs (e.g., RTD, strain gauge bridges) into digital presence/absence signals. IC Role / Device Role / Timing Role: Comparator acts as precision zero-crossing or threshold detector with adjustable hysteresis. Use Value: 5 mV max VIO ensures sub-10 mV detection accuracy; rail-to-rail input allows direct interface with unbuffered bridge outputs. |
Use Scenario: Digitizing 0–10 V or 4–20 mA field signals for PLC analog input modules. IC Role / Device Role / Timing Role: Provides configurable voltage window detection for fault signaling (e.g., open-wire, short-circuit). Use Value: Four independent channels support multi-signal validation per module; GND-inclusive input range accepts sinking current loops. |
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 mA supply current (vs. 0.3 mA); no ESD protection built-in. | Higher power consumption limits use in battery-powered systems; less suitable for high-impedance sensor interfaces. | Select LM339N only if cost is primary constraint and input bias/leakage is not critical. |
| TLC3702CN | CMOS dual comparator (2 channels); 2 pA input bias; 125 µA supply current; same LinCMOS™ process and pinout per channel. | Requires two packages for quad functionality; lower quiescent current but fewer channels per IC. | Choose TLC3702CN when dual-channel density suffices and lowest possible IDD is required. |
Compared with LM339N and TLC3702CN, the TLC374CNG4 uniquely balances ultra-low input bias (5 pA), low IDD (300 µA), integrated ESD protection, and true quad-channel integration in a legacy-compatible PDIP package-making it optimal for precision, low-power, and space-constrained industrial monitoring.
Availability
TLC374CNG4 is available at Aetrix Electronics and suitable for power supply monitoring, battery management systems, industrial sensor interfaces, and programmable logic controller inputs requiring stable component supply across extended production lifecycles.
Supply support for TLC374CNG4 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 TLC374 product line was developed for high-accuracy, low-power voltage comparison in industrial, automotive, and instrumentation applications-emphasizing LinCMOS™ advantages in input impedance, bias current, and supply flexibility.
FAQ
What is the operating temperature range for the TLC374CNG4?
The TLC374CNG4 is characterized for operation from 0°C to 70°C. This commercial-grade temperature specification aligns with standard industrial ambient environments and matches the TLC374C variant designation. The device maintains specified performance-including input offset voltage (≤5 mV), supply current (≤600 µA), and response time (≤650 ns)-across this full range.
Does the TLC374CNG4 require external pull-up resistors on its outputs?
Yes, the TLC374CNG4 requires external pull-up resistors on all four open-drain outputs (1OUT–4OUT). Because each output is an n-channel MOSFET drain with no internal pull-up, a resistor to VDD (or another logic rail) is mandatory to establish a defined HIGH state. Typical values range from 2.2 kΩ to 10 kΩ depending on speed and load requirements.
Is the TLC374CNG4 pin-compatible with the LM339?
Yes, the TLC374CNG4 is pin-compatible with the LM339 in the 14-pin PDIP (N) package. Pin assignments for inputs (1IN± through 4IN±), outputs (1OUT through 4OUT), VDD, and GND match identically-enabling drop-in replacement where LinCMOS™ advantages (lower IIB, IDD, and built-in ESD) are beneficial.
What is the maximum input voltage the TLC374CNG4 can tolerate beyond VDD?
The TLC374CNG4 supports input voltages up to VDD + 0.3 V under normal operation. Absolute maximum ratings permit ±18 V differential input voltage, but sustained operation above VDD + 0.3 V risks activating internal protection diodes and increasing input current beyond ±5 mA-requiring external clamping or current limiting per TI's recommended design practices.
Can the TLC374CNG4 operate from a single 3.3 V supply?
Yes, the TLC374CNG4 supports single-supply operation down to 3 V per recommended conditions. At 3.3 V, it maintains full functionality: inputs accept 0 V to 1.8 V common-mode range, outputs swing rail-to-rail (0 V to 3.3 V with appropriate pull-up), and key specs-including 5 pA IIB and 200 ns response-remain valid per characterization data.
TLC374CNG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Series:
- LinCMOS™
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Type:
- Differential
- Number of Elements:
- 4
- Output Type:
- CMOS, MOS, Open-Drain, TTL
- Voltage - Supply, Single/Dual (±):
- 3V ~ 16V, ±1.5V ~ 8V
- :
- 5mV @ 5V
- Voltage - Input Offset (Max):
- 5pA @ 5V
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 800µA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Through Hole
- :
- 14-PDIP
TLC374CNG4 FAQ
1.How can I place an order for TLC374CNG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC374CNG4 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 TLC374CNG4 reliable?
The price and inventory of TLC374CNG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC374CNG4 is usually 5 days.
3.What payment methods are accepted for TLC374CNG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC374CNG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC374CNG4?
TLC374CNG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC374CNG4 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 TLC374CNG4?
For technical support, including TLC374CNG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC374CNG4 requirements.
6.How does Aetrix verify that TLC374CNG4 is sourced from the original manufacturer or authorized distributors?
All TLC374CNG4 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 TLC374CNG4 meets industry standards.
7.What is the process for return or replacement of TLC374CNG4?
All TLC374CNG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC374CNG4, 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 TLC374CNG4 part is unused and in its original packaging.
Return procedure for TLC374CNG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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