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Texas Instruments TLC3704MDG4
- Part No.:
- TLC3704MDG4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC3704MDG4.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,065
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Product details
Overview
TLC3704MDG4 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, featuring 200 µW typical supply power at 5 V, 2.7 µs typical propagation delay (tPLH) with 5-mV overdrive, and −55°C to 125°C military-grade temperature range. It replaces pullup-dependent comparators in battery-powered sensor interfaces and precision threshold detection circuits.
For engineers reviewing the TLC3704MDG4 datasheet, TLC3704MDG4 pinout, TLC3704MDG4 application, or TLC3704MDG4 equivalent, key selection criteria include its rail-to-rail input common-mode range (0 to VDD−1.5 V), ±8 mA output drive capability, 5 mV max input offset voltage over full temperature range, and ESD-protected inputs rated to 2 kV HBM.
Technical Context
The TLC3704MDG4 implements four independent comparators using Texas Instruments' LinCMOS process, delivering high input impedance (>1012 Ω), ultra-low input bias current (5 pA typ at 25°C), and stable input offset voltage across temperature. Its push-pull output stage eliminates external pullup resistors while maintaining TTL-compatible logic levels and driving 50 pF capacitive loads directly.
Designed for single-supply systems, it supports common-mode input voltages from ground up to VDD−1.5 V across −55°C to 125°C, with supply-voltage rejection ratio (kSVR) of 82–85 dB and common-mode rejection ratio (CMRR) of 82–84 dB over full temperature range - critical for noisy industrial sensing and precision analog monitoring.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4 V to 16 V - enables direct use with 5 V, 12 V, and wide-input industrial rails without regulation |
| Quiescent Supply Current | 35–175 µA (all four channels) - supports multi-year battery life in always-on monitoring nodes |
| Input Offset Voltage | ≤10 mV (−55°C to 125°C) - ensures reliable threshold detection under extreme environmental stress |
| Propagation Delay | 2.7 µs typ (tPLH, 5-mV overdrive, 50 pF load) - balances speed and micropower for responsive yet efficient level sensing |
| Output Drive | ±8 mA push-pull - drives LEDs, logic inputs, or small MOSFET gates without external components |
| Input Common-Mode Range | 0 V to VDD−1.5 V - accommodates ground-referenced sensors and rail-sensing applications |
| ESD Rating | 2000 V HBM - withstands handling and board-level transients in ruggedized assembly environments |
Pinout & Package
Package: SOIC-14 (DG package), 14-pin plastic small-outline integrated circuit with standard 1.27 mm pitch and gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1IN− | Inverting input for comparator 1 - accepts reference or feedback signal |
| 2 | 1IN+ | Non-inverting input for comparator 1 - connects to sensed analog signal |
| 3 | 2IN− | Inverting input for comparator 2 - supports dual-threshold or window-comparator topologies |
| 4 | 2IN+ | Non-inverting input for comparator 2 - enables independent channel configuration |
| 5 | 3IN− | Inverting input for comparator 3 - allows cascaded or multi-stage comparison |
| 6 | 3IN+ | Non-inverting input for comparator 3 - supports redundant or differential sensing |
| 7 | 4IN− | Inverting input for comparator 4 - used for system fault monitoring or backup channel |
| 8 | GND | Ground reference - shared return path for all comparators and output loads |
| 9 | 4IN+ | Non-inverting input for comparator 4 - completes quad-channel flexibility |
| 10 | VDD | Positive supply - powers all four comparators and output stages |
| 11 | 4OUT | Digital output for comparator 4 - active-high/low CMOS-compatible signal |
| 12 | 3OUT | Digital output for comparator 3 - independent logic-level output per channel |
| 13 | 2OUT | Digital output for comparator 2 - no external pullup required due to push-pull structure |
| 14 | 1OUT | Digital output for comparator 1 - directly interfaces with microcontroller GPIO or FPGA inputs |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent comparators | Four fully isolated channels in one SOIC-14 package - reduces board space vs discrete solutions |
| Push-pull CMOS output | Eliminates need for external pullup resistors - saves BOM cost, PCB area, and power dissipation |
| Military temperature rating | −55°C to 125°C operation - qualified for aerospace, defense, and downhole industrial systems |
| LinCMOS input stage | Input bias current ≤30 nA at 125°C - maintains accuracy in high-impedance sensor interfaces |
| On-chip ESD protection | 2-kV HBM rating - improves manufacturing yield and field reliability without external TVS diodes |
Applications
| Overvoltage Protection Circuit | Battery State-of-Charge Monitor |
|---|---|
Use Scenario: Detecting when a 12-V lead-acid battery exceeds 14.4 V during charging to trigger cutoff or alarm. IC Role / Device Role / Timing Role: TLC3704MDG4 acts as precision voltage threshold detector with four independent channels enabling simultaneous monitoring of multiple battery cells or voltage rails. Use Value: Its 4–16 V supply range and 0–VDD−1.5 V input common-mode range allow direct connection to unregulated battery voltage without level-shifting. | Use Scenario: Monitoring cell voltage in a 3S Li-ion pack to identify under-voltage (≤3.0 V/cell) and over-voltage (≥4.25 V/cell) conditions. IC Role / Device Role / Timing Role: Each comparator channel in TLC3704MDG4 compares a scaled cell voltage against fixed references to generate discrete fault flags. Use Value: Micropower operation (≤175 µA total) extends runtime in portable diagnostic tools; push-pull outputs drive LED indicators directly. |
| Industrial Temperature Sensor Interface | Programmable Logic Controller (PLC) Input Module |
Use Scenario: Converting RTD or thermistor resistance changes into digital on/off signals for HVAC control or process monitoring. IC Role / Device Role / Timing Role: TLC3704MDG4 compares conditioned sensor voltage against programmable thresholds set by DAC or resistor dividers. Use Value: Stable 10-mV max input offset over −55°C to 125°C ensures consistent trip points across ambient extremes without recalibration. | Use Scenario: Digitizing 0–10 V or 4–20 mA field signals in modular PLC backplanes where robustness and long-term stability are mandatory. IC Role / Device Role / Timing Role: TLC3704MDG4 serves as front-end analog comparator converting analog inputs into clean logic-level signals for FPGA or microcontroller sampling. Use Value: 2-kV HBM ESD protection and 125°C rating support operation in electrically noisy factory-floor environments with minimal external protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad voltage comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339M | Open-collector output requiring external pullup; higher supply current (500 µA); wider offset (7 mV max over temp) | Lacks push-pull drive; unsuitable for direct TTL/CMOS interfacing without added components | Select LM339M only if legacy open-collector topology or lower-cost DIP packaging is required |
| TLC3702MDG4 | Dual-channel version in same SOIC-8 package; identical electrical specs except channel count and pinout | Used where only two comparators are needed - reduces footprint but requires redesign for quad functionality | Choose TLC3702MDG4 to minimize board area when system needs only two independent thresholds |
Compared with LM339M, TLC3704MDG4 delivers 20× lower quiescent power and eliminates pullup resistors; versus TLC3702MDG4, it provides double the channel density in a larger but still surface-mount package - making it optimal for space-constrained quad-threshold designs demanding military-grade reliability.
Availability
TLC3704MDG4 is available at Aetrix Electronics and suitable for industrial automation, aerospace avionics, and downhole oilfield instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC3704MDG4 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, embedded processing, and connectivity technologies, with decades of heritage in precision analog IC design and high-reliability component qualification.
The TLC3704MDG4 belongs to TI's LinCMOS comparator product line, engineered specifically for low-power, high-stability voltage comparison in harsh-environment applications where input accuracy, temperature resilience, and supply efficiency are critical.
FAQ
What is the maximum operating temperature range for the TLC3704MDG4?
The TLC3704MDG4 is specified for continuous operation from −55°C to 125°C, meeting MIL-PRF-38535 requirements for military-grade reliability. This full-range qualification is confirmed in the device's "recommended operating conditions" table and supported by electrical characteristics measured across that span, including input offset voltage ≤10 mV and supply current ≤175 µA. The TLC3704MDG4 achieves this via TI's LinCMOS process and enhanced thermal packaging.
Does the TLC3704MDG4 require external pullup resistors on its outputs?
No, the TLC3704MDG4 does not require external pullup resistors because it features a push-pull CMOS output stage capable of sourcing and sinking ±8 mA. This architecture directly drives capacitive loads up to 50 pF while maintaining TTL-compatible logic levels and achieving 2.7 µs typical propagation delay. Using pullups would increase power consumption, board area, and component count - all eliminated by the integrated output structure of the TLC3704MDG4.
What is the input common-mode voltage range of the TLC3704MDG4 at 12 V supply?
At a 12 V supply, the TLC3704MDG4 supports an input common-mode voltage range of 0 V to 10.5 V (VDD−1.5 V), as specified in the "recommended operating conditions" table for the TLC3704M grade. This allows direct interface with ground-referenced sensors, resistive dividers, and other analog sources without level-shifting circuitry - a key advantage over comparators limited to rail-to-rail or narrower input ranges. The TLC3704MDG4 maintains this specification across its full −55°C to 125°C operating range.
How does the TLC3704MDG4 compare to the commercial-grade TLC3704CD in terms of supply voltage?
The TLC3704MDG4 requires a minimum supply voltage of 4 V, whereas the commercial-grade TLC3704CD operates down to 3 V. This 1-V difference reflects the TLC3704MDG4's optimization for higher-reliability, higher-temperature applications where tighter process control and enhanced oxide integrity necessitate a slightly elevated lower supply limit. Both share the same 16 V absolute maximum rating, but the TLC3704MDG4's 4–16 V operational window ensures robust performance in 5 V and 12 V industrial systems where brownout margins are less critical than thermal stability.
Is the TLC3704MDG4 pin-compatible with other devices in the TLC3704 family?
Yes, the TLC3704MDG4 is pin-compatible with all SOIC-14 variants in the TLC3704 family, including the TLC3704CD, TLC3704ID, and TLC3704QD. All share identical pinout, package dimensions, and terminal functions - differences lie solely in temperature grading, screening, and test limits. This allows drop-in replacement across commercial, industrial, military, and automotive-qualified versions without PCB layout changes, provided the system's voltage, timing, and environmental requirements align with the selected grade's specifications.
TLC3704MDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- LinCMOS™
- Packaging:
- Bulk
- 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
TLC3704MDG4 FAQ
1.How can I place an order for TLC3704MDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC3704MDG4 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 TLC3704MDG4 reliable?
The price and inventory of TLC3704MDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC3704MDG4 is usually 5 days.
3.What payment methods are accepted for TLC3704MDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC3704MDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC3704MDG4?
TLC3704MDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC3704MDG4 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 TLC3704MDG4?
For technical support, including TLC3704MDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC3704MDG4 requirements.
6.How does Aetrix verify that TLC3704MDG4 is sourced from the original manufacturer or authorized distributors?
All TLC3704MDG4 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 TLC3704MDG4 meets industry standards.
7.What is the process for return or replacement of TLC3704MDG4?
All TLC3704MDG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC3704MDG4, 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 TLC3704MDG4 part is unused and in its original packaging.
Return procedure for TLC3704MDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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