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Texas Instruments TLC374CDG4
- Part No.:
- TLC374CDG4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC374CDG4.pdf
- Description:
- IC COMPARATOR 4 DIFF 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,955
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Product details
Overview
TLC374CDG4 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 at TTL-level input steps, 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 TLC374CDG4 datasheet, TLC374CDG4 pinout, TLC374CDG4 application, or TLC374CDG4 equivalent, this page provides verified package mapping (SOIC-14), confirmed open-drain n-channel outputs, validated input offset voltage ≤5 mV (25°C), and pin-compatible alternatives to LM339 for legacy design migration and supply-chain continuity.
Technical Context
The TLC374CDG4 integrates four independent comparators on a single LinCMOS™ die, each featuring high-impedance inputs (>10¹² Ω) and rail-to-rail common-mode input range including ground. Its n-channel open-drain output stage supports wired-AND logic and TTL/MOS/CMOS interfacing without pull-up conflicts.
ESD protection follows human-body-model qualification at 1000 V, with internal shunting circuitry that avoids post-ESD leakage degradation. Input offset voltage drift is ultrastable - typically 0.23 µV/month - making it suitable for long-term monitoring circuits where calibration stability is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 18 V - supports single-supply 3.3 V/5 V/12 V systems and dual-supply configurations with ≥2 V differential. |
| Input Bias Current | 5 pA typ - enables direct connection to high-impedance sources like photodiodes or capacitive sensors without loading error. |
| Response Time | 200 ns typ (TTL step) - ensures fast decision-making in overvoltage protection and digital event capture circuits. |
| Input Offset Voltage | ≤5 mV max at 25°C - guarantees reliable switching at small differential thresholds (e.g., ±2.5 mV window detection). |
| Output Configuration | n-channel open-drain - allows flexible pull-up selection (e.g., 3.3 V or 5 V) and wired-AND bus arbitration. |
| Operating Temperature | 0°C to 70°C - qualified for commercial-grade embedded control, instrumentation, and power management applications. |
| ESD Rating | 1000 V HBM - meets standard handling requirements for automated assembly without external protection. |
Pinout & Package
Package: SOIC-14 (D package), 14-pin plastic small-outline integrated circuit with standard 1.27 mm pitch and 8.65 mm × 3.91 mm body dimensions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Open-drain output of Comparator 1 - requires external pull-up; sinks up to 16 mA when low. |
| 2 | 1IN– | Inverting input of Comparator 1 - accepts signals down to GND; high-impedance node. |
| 3 | 1IN+ | Non-inverting input of Comparator 1 - same impedance and voltage range as 1IN–. |
| 4 | 2IN– | Inverting input of Comparator 2 - electrically isolated from other channels; no crosstalk. |
| 5 | 2IN+ | Non-inverting input of Comparator 2 - supports independent reference or signal routing. |
| 6 | 2OUT | Open-drain output of Comparator 2 - compatible with shared pull-up bus for multi-comparator logic. |
| 7 | GND | Power ground reference - common return for all comparators and supply current path. |
| 8 | 3OUT | Open-drain output of Comparator 3 - identical electrical behavior to 1OUT and 2OUT. |
| 9 | 3IN+ | Non-inverting input of Comparator 3 - supports cascaded or parallel threshold comparisons. |
| 10 | 3IN– | Inverting input of Comparator 3 - fully differential pair with 3IN+; no internal connection to other pins. |
| 11 | 4IN– | Inverting input of Comparator 4 - independent input stage; no shared substrate coupling. |
| 12 | 4IN+ | Non-inverting input of Comparator 4 - enables four-channel window, level-shift, or zero-crossing detection. |
| 13 | 4OUT | Open-drain output of Comparator 4 - supports discrete logic OR-ing via external diode or resistor network. |
| 14 | VDD | Positive supply rail - powers all four comparators; decoupling capacitor recommended near pin. |
Key Features
| Feature | Design Value |
|---|---|
| LinCMOS™ process technology | Enables ultra-low input bias current (5 pA typ) and high input impedance (>10¹² Ω) without bipolar trade-offs. |
| Single/dual-supply flexibility | Operates from 2 V to 18 V supply or split rails (e.g., ±5 V) - simplifies system power architecture. |
| Wired-AND output capability | Four independent open-drain outputs allow shared pull-up for compact logic functions (e.g., alarm OR-ing). |
| Ground-sensing input range | Common-mode voltage includes 0 V - enables direct interface with ground-referenced sensors and ADC references. |
| Pin compatibility with LM339 | Same pinout and functional behavior as industry-standard LM339 - enables drop-in replacement in legacy designs. |
Applications
| Battery Voltage Monitor | Industrial Overvoltage Protection |
|---|---|
Use Scenario: Monitoring Li-ion cell voltage during charging to trigger cutoff at 4.2 V and pre-charge enable below 3.0 V. IC Role / Device Role / Timing Role: Quadruple comparator configured as dual-window detector - two channels for upper/lower thresholds, two for status flag generation. Use Value: 5 pA input bias prevents loading of high-resistance voltage divider; 200 ns response ensures timely shutdown before overvoltage damage. |
Use Scenario: Detecting AC line surges >280 VAC in programmable logic controller (PLC) input modules. IC Role / Device Role / Timing Role: Comparator 1 compares rectified peak voltage against precision reference; remaining channels monitor auxiliary conditions (temperature, current). Use Value: Rail-to-rail input range accommodates 0–300 V scaled input; open-drain outputs interface directly with 24 V PLC logic inputs. |
| Motor Phase Detection | Optical Encoder Signal Conditioning |
Use Scenario: Converting sinusoidal back-EMF from BLDC motor windings into clean square-wave commutation signals. IC Role / Device Role / Timing Role: Three comparators used per motor phase (A/B/C) for zero-crossing detection; fourth channel validates supply integrity. Use Value: 200 ns propagation delay minimizes commutation timing error; low input offset (<5 mV) reduces phase jitter at low speeds. |
Use Scenario: Converting analog quadrature signals from incremental optical encoders into digital A/B index pulses for motion control. IC Role / Device Role / Timing Role: Two comparators condition A/B channels; third handles index pulse; fourth provides noise-immune hysteresis control. Use Value: High input impedance avoids signal attenuation on long encoder cables; stable offset ensures consistent edge placement over temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quadruple differential comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339DR | Bipolar process; 250 nA input bias current; 1.3 µs typical response time; no ESD rating specified. | Higher power consumption and slower switching limit use in battery-critical or high-speed systems. | Select LM339DR only when cost sensitivity outweighs performance requirements and ESD robustness is not required. |
| TLC374CPW | Same LinCMOS™ core, identical specs, but TSSOP-14 package (4.4 mm × 3.0 mm); RoHS-compliant NiPdAu finish. | Smaller footprint and finer pitch suit space-constrained PCBs; reflow-compatible with modern SMT lines. | Choose TLC374CPW for new designs requiring miniaturization or lead-free compliance; pinout matches TLC374CDG4. |
Compared with LM339DR and TLC374CPW, the TLC374CDG4 offers superior input bias current (5 pA vs 250 nA) and speed (200 ns vs 1.3 µs), while sharing full functional equivalence with TLC374CPW - making it optimal for legacy SOIC-based designs needing proven reliability and ESD hardening.
Availability
TLC374CDG4 is available at Aetrix Electronics and suitable for battery management systems, industrial safety interlocks, motor control feedback loops, and optical sensing modules requiring stable component supply across extended production lifecycles.
Supply support for TLC374CDG4 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 analog ICs and industrial-grade components.
The TLC374CDG4 belongs to TI's LinCMOS™ comparator product line, engineered for high-impedance, low-power, and stable-threshold applications in commercial-grade instrumentation, power systems, and sensor signal conditioning.
FAQ
What is the maximum supply voltage for the TLC374CDG4?
The TLC374CDG4 supports an absolute maximum supply voltage of 18 V, with recommended operating range from 2 V to 18 V. Operation at 18 V is permissible but requires thermal derating per the dissipation rating table; at 25°C ambient, SOIC-14 package power dissipation must remain ≤500 mW to ensure reliability.
Does the TLC374CDG4 have internal pull-up resistors on its outputs?
No, the TLC374CDG4 does not include internal pull-up resistors. All four outputs are n-channel open-drain and require external pull-up resistors to VDD or another logic rail. Typical values range from 2.2 kΩ to 10 kΩ depending on rise time and load capacitance requirements.
Is the TLC374CDG4 pin-compatible with the LM339 series?
Yes, the TLC374CDG4 is fully pin-compatible with the LM339, LM339A, and LM2901 in SOIC-14 (D) packages. Pin assignments for inputs, outputs, VDD, and GND match exactly, enabling direct substitution without PCB modification.
What is the input common-mode voltage range of the TLC374CDG4?
The TLC374CDG4 features a rail-to-rail input common-mode range extending from GND to VDD – 1 V at 25°C, and to VDD – 1.5 V across full temperature range. This allows direct interfacing with ground-referenced signals and eliminates need for level-shifting circuitry.
Can the TLC374CDG4 operate from a dual supply?
Yes, the TLC374CDG4 supports dual-supply operation provided the voltage difference between VDD and GND remains within 2 V to 18 V. For example, ±5 V (10 V total) or +12 V/–5 V (17 V total) configurations are valid - but note GND remains the reference node, not mid-supply.
TLC374CDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- LinCMOS™
- 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
- :
- 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:
- Surface Mount
- :
- 14-SOIC
TLC374CDG4 FAQ
1.How can I place an order for TLC374CDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC374CDG4 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 TLC374CDG4 reliable?
The price and inventory of TLC374CDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC374CDG4 is usually 5 days.
3.What payment methods are accepted for TLC374CDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC374CDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC374CDG4?
TLC374CDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC374CDG4 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 TLC374CDG4?
For technical support, including TLC374CDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC374CDG4 requirements.
6.How does Aetrix verify that TLC374CDG4 is sourced from the original manufacturer or authorized distributors?
All TLC374CDG4 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 TLC374CDG4 meets industry standards.
7.What is the process for return or replacement of TLC374CDG4?
All TLC374CDG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC374CDG4, 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 TLC374CDG4 part is unused and in its original packaging.
Return procedure for TLC374CDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC374CDG4 Tags
-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
-
LM339PWR
Texas Instruments
-
LM393DT
STMicroelectronics
-
LM2901PWR
Texas Instruments
-
LM2903DT
STMicroelectronics
-
LM393DR
Texas Instruments
-
LM239DR
Texas Instruments
-
LM339APWR
Texas Instruments
-
LM2903P
Texas Instruments
-
LM393ADR
Texas Instruments
-
NCX2200GMAZ
NXP Semiconductors
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