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Texas Instruments TL714CP
- Part No.:
- TL714CP
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TL714CP.pdf
- Description:
- IC COMPARATOR 1 DIFF 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:464
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Product details
Overview
TL714CP from Texas Instruments is a high-speed bipolar Schottky differential comparator with TTL-compatible output, 6 ns typical propagation delay, 10 mV typical hysteresis, and single 5-V supply operation. It serves as a disk-memory read-chain data comparator in high-frequency digital systems requiring precise threshold detection.
For engineers reviewing the TL714CP datasheet, TL714CP pinout, TL714CP application, or TL714CP equivalent, this page delivers verified electrical specs, validated PDIP-8 package mapping, real-world timing behavior, and confirmed alternatives for high-speed analog-digital interface design.
Technical Context
The TL714CP implements a self-biasing differential input stage with internal hysteresis to suppress noise-induced oscillation during slow-rising or noisy input transitions. Its symmetrical TTL output drive (±16 mA) ensures robust interfacing with standard logic families without external level-shifting.
Designed for 50 MHz maximum operating frequency at 25 pF load, the device uses fixed internal resistor networks (9.6 kΩ pull-ups, 100 Ω series) to define input common-mode range (1.4 V to VCC−1.4 V) and output switching thresholds, eliminating external bias components in most applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 4.75 V to 5.25 V - Ensures stable operation within standard TTL/CMOS 5-V rail tolerances. |
| Propagation delay | 6 ns typical (tPLH/tPHL) - Enables reliable sampling of >50 MHz digital signals with minimal timing skew. |
| Hysteresis | 10 mV typical - Provides noise immunity against ≤10 mV input ripple without external feedback. |
| Output drive | 16 mA sink / −1 mA source - Directly drives standard TTL inputs without buffer stages. |
| Input resistance | 2.9 kΩ differential - Matches typical line-termination impedances in high-speed data chains. |
| Common-mode range | 1.4 V to VCC−1.4 V - Supports operation across full TTL logic swing while rejecting ground bounce. |
| Operating temperature | 0°C to 70°C - Qualified for commercial-grade embedded and peripheral subsystems. |
Pinout & Package
TL714CP is housed in an 8-pin plastic dual in-line package (PDIP), compliant with JEDEC MS-001, with 0.3-inch body width and 0.1-inch lead pitch. The package supports through-hole mounting and manual rework.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No internal connection | Unused pin; must remain unconnected to avoid parasitic coupling or mechanical stress. |
| 2 | Inverting input (IN−) | Differential input node referenced to non-inverting input; accepts DC-coupled or AC-coupled signals. |
| 3 | Non-inverting input (IN+) | Primary signal input with self-biasing network; defines comparator decision threshold relative to IN−. |
| 4 | No internal connection | Unused pin; electrically isolated and thermally decoupled from die. |
| 5 | Positive supply (VCC) | Single 5-V power rail; requires local 0.1 µF ceramic bypass capacitor near pin. |
| 6 | No internal connection | Unused pin; no internal bond wire or circuit connection. |
| 7 | Output (OUT) | TTL-compatible open-collector–like output; sinks up to 16 mA with 0.5 V max VOL at rated load. |
| 8 | Ground (GND) | Reference return path for supply and signal currents; must be low-impedance connection to system ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Self-biasing input architecture | Eliminates need for external resistive divider or reference voltage in threshold-setting circuits. |
| 6 ns propagation delay | Enables real-time comparison of fast serial data streams such as floppy disk read channels or encoder outputs. |
| 10 mV internal hysteresis | Prevents multiple toggling on noisy or slowly transitioning inputs without external positive feedback. |
| TTL-compatible output stage | Directly interfaces with 74LS/74ALS logic families without level-shifting or pull-up resistors. |
| Single 5-V supply operation | Reduces board-level power conversion complexity and eliminates dual-rail regulators in legacy systems. |
Applications
| Disk Memory Read Channel | High-Speed Data Acquisition |
|---|---|
|
Use Scenario: Detecting magnetic flux transitions from floppy or hard disk read heads in legacy storage controllers. IC Role / Device Role / Timing Role: Differential comparator converting analog head signal into clean digital NRZ data stream synchronized to clock. Use Value: 6 ns delay and 50 MHz bandwidth ensure accurate recovery of 25 Mbps read data without intersymbol interference. |
Use Scenario: Converting analog sensor outputs (e.g., position encoders, pulse-width modulated signals) into digital logic levels. IC Role / Device Role / Timing Role: High-speed threshold detector capturing edge timing of fast transient events in industrial motion control. Use Value: 10 mV hysteresis rejects EMI-induced noise on long sensor cables while preserving sub-10 ns timing resolution. |
| Legacy Bus Arbitration Logic | Waveform Zero-Crossing Detection |
|
Use Scenario: Resolving bus contention in parallel microprocessor systems using differential signaling (e.g., IEEE-488 GPIB). IC Role / Device Role / Timing Role: Comparator monitoring differential bus lines to assert arbitration grant signals with minimal latency. Use Value: Symmetrical tPLH/tPHL ensures deterministic response to both rising and falling arbitration edges. |
Use Scenario: Identifying zero-crossing points in AC line voltage or motor phase signals for synchronous switching. IC Role / Device Role / Timing Role: Precision threshold detector generating clean logic edges aligned to sinusoidal waveform zero crossings. Use Value: Self-biasing inputs track mid-supply automatically, enabling accurate zero-crossing detection without external bias network. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed differential comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM311N | Slower (200 ns delay), no internal hysteresis, requires external pull-up and biasing. | Suitable for lower-speed (<1 MHz) analog comparators where cost is prioritized over speed. | Choose LM311N only when timing budget exceeds 100 ns and board space allows external components. |
| TL3016CP | Faster (4.5 ns delay), higher supply current (15 mA vs. 12 mA typ), same PDIP-8 package. | Better suited for >100 MHz clock/data recovery but less tolerant of input overvoltage (±3.5 V vs. ±5 V). | TL3016CP offers superior speed but requires tighter input voltage control; TL714CP provides wider input margin. |
Compared with LM311N and TL3016CP, the TL714CP delivers optimal balance of speed (6 ns), built-in hysteresis (10 mV), and input voltage tolerance (±5 V), making it ideal for legacy disk controller and industrial timing applications where reliability and simplicity outweigh ultra-high-speed requirements.
Availability
TL714CP is available at Aetrix Electronics and suitable for disk memory controllers, industrial motion control systems, and legacy bus arbitration circuits requiring stable component supply and long-term obsolescence support.
Supply support for TL714CP 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 founded in 1930, specializing in analog, embedded processing, and logic solutions with broad industrial and automotive qualification.
The TL714CP belongs to TI's legacy bipolar comparator family designed specifically for high-reliability, high-speed data acquisition and storage subsystems in commercial-temperature environments.
FAQ
What is the maximum operating frequency supported by the TL714CP?
The TL714CP supports a maximum operating frequency of 50 MHz under specified test conditions (VID = ±250 mV, CL = 25 pF, tr/tf = 4 ns). This rating reflects its ability to reliably resolve alternating input transitions at that rate, making it suitable for disk read-channel and encoder signal conditioning applications where timing fidelity is critical. The TL714CP achieves this performance using bipolar Schottky technology with optimized internal node capacitance.
Does the TL714CP require external hysteresis components?
No, the TL714CP integrates 10 mV typical hysteresis internally via dedicated circuitry, eliminating the need for external positive feedback resistors. This simplifies PCB layout and improves consistency across temperature and unit-to-unit variation. The hysteresis is fixed and not adjustable, which ensures predictable noise immunity in applications like disk read amplifiers where signal integrity is paramount. The TL714CP's self-contained hysteresis directly supports its role in legacy storage systems.
What is the recommended bypass capacitor for the TL714CP VCC pin?
A 0.1 µF ceramic capacitor placed as close as possible to the TL714CP VCC (pin 5) and GND (pin 8) is recommended to suppress high-frequency supply noise and stabilize internal bias nodes. This value is validated in TI's application guidance for the TL714C family and ensures consistent 6 ns propagation delay and clean TTL output transitions. Larger bulk capacitors (e.g., 10 µF tantalum) may be added nearby for low-frequency ripple suppression, but the 0.1 µF ceramic remains mandatory for TL714CP high-speed operation.
Can the TL714CP operate from a 3.3-V supply?
No, the TL714CP is specified only for 4.75 V to 5.25 V operation per its recommended conditions. Attempting 3.3-V operation results in undefined output levels, degraded propagation delay, and potential failure to meet TTL logic thresholds (VOH ≥ 2.7 V, VOL ≤ 0.5 V). For 3.3-V systems, consider modern comparators such as the TLV3501 or LTC1998. The TL714CP's bipolar Schottky architecture inherently requires ~5 V for proper transistor saturation and output drive strength.
How does the TL714CP handle input common-mode voltage variations?
The TL714CP supports a common-mode input voltage range of 1.4 V to VCC−1.4 V (i.e., 1.4 V to 3.6 V at 5 V supply), defined by internal resistor networks and transistor operating points. This range accommodates typical TTL logic swings and differential signals from magnetic read heads without external level shifting. Input offset drift over temperature is minimized by matched bipolar transistors, ensuring stable threshold tracking across 0°C to 70°C. The TL714CP's self-biasing design maintains this range autonomously.
TL714CP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Differential
- Number of Elements:
- 1
- Output Type:
- Push-Pull, TTL
- Voltage - Supply, Single/Dual (±):
- 4.75V ~ 5.25V
- :
- -
- Voltage - Input Offset (Max):
- -
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 12mA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- 12ns
- Propagation Delay (Max):
- 30mV
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Through Hole
- :
- 8-PDIP
TL714CP FAQ
1.How can I place an order for TL714CP through Aetrix?
Please submit a Request for Quotation (RFQ) for TL714CP 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 TL714CP reliable?
The price and inventory of TL714CP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL714CP is usually 5 days.
3.What payment methods are accepted for TL714CP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL714CP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL714CP?
TL714CP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL714CP 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 TL714CP?
For technical support, including TL714CP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL714CP requirements.
6.How does Aetrix verify that TL714CP is sourced from the original manufacturer or authorized distributors?
All TL714CP 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 TL714CP meets industry standards.
7.What is the process for return or replacement of TL714CP?
All TL714CP units undergo pre-shipment inspection (PSI). If there is an issue with TL714CP, 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 TL714CP part is unused and in its original packaging.
Return procedure for TL714CP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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