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Texas Instruments TLC3704MDRG4
- Part No.:
- TLC3704MDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC3704MDRG4.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,340
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Product details
Overview
TLC3704MDRG4 from Texas Instruments is a quad micropower LinCMOS voltage comparator with push-pull CMOS outputs, designed for single-supply operation from 4 V to 16 V and rated for −55°C to 125°C military temperature range. It delivers 2.7 µs typical propagation delay (tPLH) at 5-mV overdrive, 200 µW typical supply power at 5 V, ±8 mA output drive capability, and features on-chip ESD protection per human-body model (2 kV). It is used in precision threshold detection circuits within ruggedized industrial control and aerospace sensor interfaces.
For engineers reviewing the TLC3704MDRG4 datasheet, TLC3704MDRG4 pinout, TLC3704MDRG4 application, or TLC3704MDRG4 equivalent, key selection criteria include its military-grade temperature rating, absence of external pullup resistors due to push-pull output architecture, low input bias current (5 pA typ at 25°C), and compatibility with HCMOS/TTL logic families without level-shifting.
Technical Context
The TLC3704MDRG4 implements four independent comparators using Texas Instruments' LinCMOS process-optimized for analog stability and low-power operation while retaining CMOS advantages like high input impedance and minimal bias current. Each comparator features differential input stages with 84 dB typical CMRR and 85 dB kSVR at 25°C, enabling reliable operation under varying supply and common-mode conditions.
Its push-pull CMOS output stage eliminates need for external pullup resistors, directly driving capacitive loads up to 50 pF with defined rise/fall times (tr = 125 ns, tf = 50 ns at 50 pF). Input voltage range extends from GND to VDD − 1.5 V across the full −55°C to 125°C operating range, supporting rail-to-rail sensing in single-supply systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4 V to 16 V - enables direct interface with 5 V, 12 V, and 15 V industrial power rails without regulation |
| Propagation Delay (tPLH) | 2.7 µs typ at 5-mV overdrive - supports fast threshold decisions in real-time monitoring loops |
| Supply Current (All 4 Channels) | 35–80 µA typ at 25°C - allows battery-powered or energy-harvesting applications with multi-channel sensing |
| Input Offset Voltage (VIO) | 1.2–5 mV max at 25°C; 10 mV max over full temp range - ensures accurate trip-point stability in precision level detection |
| Output Drive Capability | ±8 mA - sufficient to directly drive LEDs, small MOSFET gates, or TTL inputs without buffering |
| Input Bias Current | 5 pA typ at 25°C - minimizes error in high-impedance sensor interfaces (e.g., thermistors, photodiodes) |
| ESD Protection | 2 kV HBM - meets MIL-STD-883 Class 301.3 requirements for handling in military/aerospace assembly |
Pinout & Package
Package: SOIC-14 (D package), RoHS-compliant, tape-and-reel (DRG4 suffix denotes 14-pin SOIC with green molding compound and Pb-free finish).
| 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 - connects to sensed signal for positive-edge detection |
| 3 | 2IN− | Inverting input of Comparator 2 - supports dual-threshold or window-comparator configurations |
| 4 | 2IN+ | Non-inverting input of Comparator 2 - enables independent channel-level decision making |
| 5 | 3IN− | Inverting input of Comparator 3 - allows expansion to triple or quad independent thresholds |
| 6 | 3IN+ | Non-inverting input of Comparator 3 - maintains channel isolation for noise-immune designs |
| 7 | 4IN− | Inverting input of Comparator 4 - supports redundancy or fault-monitoring schemes |
| 8 | GND | Ground reference for all comparators and output stages - must be low-impedance return path |
| 9 | 4IN+ | Non-inverting input of Comparator 4 - completes quad-channel sensing capability |
| 10 | VDD | Positive supply rail - powers all four comparators and output drivers simultaneously |
| 11 | 4OUT | Digital output of Comparator 4 - push-pull CMOS structure drives high/low without external components |
| 12 | 3OUT | Digital output of Comparator 3 - compatible with TTL logic levels (VOH ≥ 4.3 V, VOL ≤ 500 mV at 125°C) |
| 13 | 2OUT | Digital output of Comparator 2 - supports wired-OR via external diode if open-drain behavior is required |
| 14 | 1OUT | Digital output of Comparator 1 - provides deterministic logic state even under capacitive loading (CL ≤ 50 pF) |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent comparators | Four fully isolated channels in one SOIC-14 package - reduces board space vs discrete solutions and avoids crosstalk in mixed-signal layouts |
| Push-pull CMOS output | Eliminates need for external pullup resistors - saves BOM cost, PCB area, and power dissipation in high-density designs |
| Military temperature rating | −55°C to +125°C operation - qualified for deployment in avionics, downhole tools, and vehicle engine-control modules |
| LinCMOS process technology | Sub-nA input bias current and stable offset voltage over temperature - enables accurate DC-coupled sensing without calibration drift |
| On-chip ESD protection | 2-kV HBM rating - satisfies MIL-STD-883 requirement for robustness during automated handling and field maintenance |
Applications
| Overvoltage/Undervoltage Monitoring | Window Comparator for Sensor Validation |
|---|---|
Use Scenario: Real-time monitoring of 12-V power rail in airborne navigation system to trigger shutdown before damage occurs. IC Role / Device Role / Timing Role: TLC3704MDRG4 acts as dual-threshold detector - one comparator monitors upper limit (13.2 V), another lower limit (10.8 V). Use Value: Delivers 2.7 µs response at 5-mV overdrive, ensuring fault reaction within 3 µs - faster than legacy LM339-based designs by 4×. | Use Scenario: Validating thermistor output in turbine exhaust gas temperature (EGT) sensor to detect open-circuit or short-circuit faults. IC Role / Device Role / Timing Role: TLC3704MDRG4 implements 4-channel window comparator - two comparators define upper/lower bounds, two provide status flags. Use Value: 5 pA input bias current prevents loading of high-resistance thermistor network, preserving measurement accuracy across −55°C to 125°C. |
| Redundant Fault Detection in Flight Control | Multi-Zone Temperature Thresholding in Avionics Bay |
Use Scenario: Cross-checking dual independent air data computers (ADCs) to detect disagreement exceeding 2% in static pressure readings. IC Role / Device Role / Timing Role: TLC3704MDRG4 compares differential ADC outputs using precision resistor dividers - third comparator validates reference voltage integrity. Use Value: 10 mV max input offset over full temperature range ensures <0.1% trip-point error - critical for DO-178C Level A software certification. | Use Scenario: Monitoring six thermal zones in aircraft cabin electronics bay using thermistor networks, each requiring distinct high/low alerts. IC Role / Device Role / Timing Role: Two TLC3704MDRG4 devices provide eight independent thresholds - each comparator assigned to unique zone and alert level. Use Value: 200 µW typical supply power per device enables continuous monitoring without impacting system power budget - essential for always-on health monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad voltage comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339J | Open-collector output, higher supply current (500 µA typ), no built-in ESD protection, −55°C to 125°C rating | Requires external pullup resistors; less suitable for low-power or high-speed capacitive-load scenarios | Select when legacy footprint compatibility is mandatory and speed/power are secondary |
| TLC3702MD | Dual-channel version in SOIC-8; identical electrical specs and temperature rating but half channel count | Used where only two independent comparisons are needed - reduces component count in space-constrained modules | Select when design requires exactly two comparators and PCB layout favors smaller package |
Compared with LM339J and TLC3702MD, the TLC3704MDRG4 uniquely combines quad channel count, push-pull outputs, micropower consumption, and military-grade temperature performance - making it optimal for new designs prioritizing integration, speed, and reliability in harsh environments.
Availability
TLC3704MDRG4 is available at Aetrix Electronics and suitable for aerospace power monitoring, avionics sensor conditioning, and ruggedized industrial control systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC3704MDRG4 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 heritage in precision analog ICs for mission-critical applications.
The TLC3704M series belongs to TI's military-qualified LinCMOS comparator family, engineered specifically for high-reliability systems demanding wide temperature operation, ultra-low input current, and robust ESD tolerance without sacrificing speed.
FAQ
What is the maximum operating temperature range for the TLC3704MDRG4?
The TLC3704MDRG4 is specified for operation from −55°C to +125°C, meeting MIL-PRF-38535 Class K requirements. This full military temperature range is confirmed in the "recommended operating conditions" table of the SLCS117C datasheet, and distinguishes it from commercial (0°C to 70°C) and industrial (−40°C to 85°C) variants of the TLC3704 family.
Does the TLC3704MDRG4 require external pullup resistors on its outputs?
No, the TLC3704MDRG4 does not require external pullup resistors because it features a push-pull CMOS output stage. As stated in the datasheet's front-page description, this architecture directly drives capacitive loads without power-consuming pullups - a key differentiator from open-collector comparators like the LM339. This feature is inherent to the TLC3704MDRG4 design and applies across its entire operating range.
What is the typical supply current consumption of the TLC3704MDRG4 at 25°C?
The typical supply current for the TLC3704MDRG4 is 35–80 µA at 25°C with all four comparators active and outputs low under no-load conditions. This value is explicitly listed in the "electrical characteristics" table for the TLC3704M grade and confirms its micropower classification - approximately 1/20th the power of an LM339 at comparable speed.
Can the TLC3704MDRG4 operate from a 3-V supply?
No, the TLC3704MDRG4 has a minimum supply voltage of 4 V, as specified in its "recommended operating conditions" table. While standard TLC3704 variants (e.g., TLC3704C) support 3 V to 16 V, the "M" grade is optimized for higher-voltage robustness and begins operation at 4 V - a deliberate design choice to ensure stable performance across extreme temperature excursions.
Is the TLC3704MDRG4 pin-compatible with the LM339?
No, the TLC3704MDRG4 is not pin-compatible with the LM339. Although both are quad comparators, the TLC3704MDRG4 uses a 14-pin SOIC package with dedicated pins for all four inputs and outputs plus VDD and GND, whereas the LM339 uses a 14-pin DIP/SOIC with open-collector outputs requiring shared collector connections. Pin mapping, output structure, and supply voltage ranges differ fundamentally - PCB redesign is required for substitution.
TLC3704MDRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- LinCMOS™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- General Purpose
- Number of Elements:
- 4
- Output Type:
- CMOS, Push-Pull, TTL
- Voltage - Supply, Single/Dual (±):
- 4V ~ 16V
- :
- 5mV @ 10V
- Voltage - Input Offset (Max):
- 5pA @ 5V
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 175µA
- Current - Quiescent (Max):
- 84dB CMRR
- CMRR, PSRR (Typ):
- 4.5µs
- Propagation Delay (Max):
- -
- Hysteresis:
- -55°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 14-SOIC
TLC3704MDRG4 FAQ
1.How can I place an order for TLC3704MDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC3704MDRG4 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 TLC3704MDRG4 reliable?
The price and inventory of TLC3704MDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC3704MDRG4 is usually 5 days.
3.What payment methods are accepted for TLC3704MDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC3704MDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC3704MDRG4?
TLC3704MDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC3704MDRG4 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 TLC3704MDRG4?
For technical support, including TLC3704MDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC3704MDRG4 requirements.
6.How does Aetrix verify that TLC3704MDRG4 is sourced from the original manufacturer or authorized distributors?
All TLC3704MDRG4 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 TLC3704MDRG4 meets industry standards.
7.What is the process for return or replacement of TLC3704MDRG4?
All TLC3704MDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC3704MDRG4, 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 TLC3704MDRG4 part is unused and in its original packaging.
Return procedure for TLC3704MDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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