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Texas Instruments TL714CD
- Part No.:
- TL714CD
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL714CD.pdf
- Description:
- IC COMPARATOR 1 DIFF 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,578
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Product details
Overview
TL714CD from Texas Instruments is a high-speed differential comparator fabricated in bipolar Schottky technology, featuring TTL-compatible output, 6 ns typical propagation delay, 10 mV typical hysteresis, and operation from a single 5-V supply. It serves as a disk-memory read-chain data comparator in digital storage systems.
For engineers reviewing the TL714CD datasheet, TL714CD pinout, TL714CD application, or TL714CD equivalent, this page delivers verified electrical specs, SOIC-8 package details, switching performance at 50 MHz, self-biasing input architecture, and real-world use cases in high-speed data acquisition and memory interface circuits.
Technical Context
The TL714CD implements a differential input stage with internal hysteresis (10 mV typ) to reject noise during fast edge transitions. Its symmetrical TTL output drives standard logic loads without external pull-ups, supporting bidirectional signal conditioning in read-channel architectures.
Designed for single-supply 5-V operation (4.75–5.25 V), it accepts common-mode inputs from 1.4 V to VCC−1.4 V and delivers low-output voltage ≤0.5 V at 16 mA sink current, enabling direct interfacing with 74LS/ALS logic families.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.75–5.25 V - Ensures compatibility with standard 5-V TTL/LS logic rails and stable operation across industrial temperature range. |
| Propagation Delay | 6 ns typ (tPLH/tPHL) - Enables reliable sampling of signals up to 50 MHz in disk read channels and high-speed data comparators. |
| Hysteresis | 10 mV typ - Provides noise immunity against small-amplitude interference on differential inputs without external components. |
| Output Drive | VOL ≤ 0.5 V at IOL = 16 mA - Directly interfaces with legacy TTL loads without level-shifting or buffering. |
| Input Resistance | 2.9 kΩ differential - Matches typical termination impedances in high-speed analog front-ends and minimizes loading on source circuits. |
| Operating Temp | 0°C to 70°C - Qualified for commercial-grade embedded systems including peripheral controllers and test equipment. |
Pinout & Package
TL714CD is housed in an 8-pin SOIC (D) package per JEDEC MS-012 variation AA, 1.75 mm max height, with 1.27 mm pitch and RoHS-compliant NiPdAu lead finish. Pin 1 is located in quadrant Q1 per tape-and-reel orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No internal connection | Unused pad; must be left floating or grounded per layout best practices to avoid parasitic coupling. |
| 2 (IN−) | Inverting input | Differential input node accepting reference or inverted signal; self-biased internally to mid-rail under common-mode conditions. |
| 3 (IN+) | Non-inverting input | Main signal input with matched impedance to IN−; threshold offset ±75 mV defines switching window. |
| 4 (NC) | No internal connection | Unused pad; no internal bond wire; electrically isolated from die. |
| 5 (VCC) | Positive supply | Single 5-V rail input; bypass capacitor (0.1 µF) required adjacent to pin for high-frequency stability. |
| 6 (NC) | No internal connection | Unused pad; no thermal or electrical function; may be used for mechanical anchoring only. |
| 7 (OUT) | TTL-compatible output | Active-low capable output driving 74LS loads directly; VOL ≤ 0.5 V ensures valid LOW logic level at full sink current. |
| 8 (GND) | Ground reference | Return path for supply and output current; requires low-inductance connection to system ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Self-biasing input stage | Eliminates need for external bias resistors in single-supply configurations, reducing BOM count and PCB area in compact read-channel designs. |
| 6 ns propagation delay | Supports real-time comparison of high-frequency NRZ data streams in magnetic storage read electronics without added latency. |
| 10 mV hysteresis | Rejects sub-10 mV noise spikes on differential inputs-critical for reliable decision-making in low-SNR disk read amplifiers. |
| TTL-compatible output | Drives standard 74LS logic loads directly, avoiding level translators and simplifying interface design in legacy controller systems. |
| SOIC-8 packaging | Enables automated SMT assembly and provides thermal resistance (θJA = 97°C/W) suitable for continuous operation in ambient temperatures up to 70°C. |
Applications
| Disk Memory Read Channel | High-Speed Data Acquisition |
|---|---|
Use Scenario: Detecting magnetic flux transitions from rotating disk platters in floppy or early hard drive controllers. IC Role / Device Role / Timing Role: Differential comparator converting analog read-head signals into clean digital NRZ data for subsequent decoding. Use Value: 6 ns delay and 50 MHz max frequency enable accurate sampling of high-density track data without intersymbol interference. | Use Scenario: Converting fast analog sensor outputs (e.g., laser pulse detectors or RF envelope detectors) into binary logic levels. IC Role / Device Role / Timing Role: High-speed threshold detector generating precise timing edges for time-of-flight or peak-detection systems. Use Value: Self-biasing inputs and 10 mV hysteresis ensure robust triggering even with low-amplitude, noisy input waveforms. |
| Legacy TTL System Interface | Waveform Shaping & Squaring |
Use Scenario: Interfacing non-TTL signal sources (e.g., ECL or CMOS logic) to 74LS-based control buses in industrial instrumentation. IC Role / Device Role / Timing Role: Level translator and signal conditioner providing compatible logic thresholds and drive strength. Use Value: VOL ≤ 0.5 V at 16 mA sink current guarantees valid LOW state for LS-family inputs without external pull-downs. | Use Scenario: Cleaning up distorted or slow-rising clock/data signals in aging communication backplanes or test fixtures. IC Role / Device Role / Timing Role: Precision zero-crossing detector reshaping sine or triangle waves into square logic clocks. Use Value: Symmetrical switching characteristics and matched tPLH/tPHL minimize duty-cycle distortion in regenerated clocks. |
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 |
|---|---|---|---|
| LM311DR | Slower (200 ns delay), open-collector output requiring pull-up; wider supply range (5–36 V). | Suitable for general-purpose analog comparators where speed is secondary to flexibility in supply and output configuration. | Select LM311DR only when adjustable hysteresis, wide VCC, or open-collector output is required-TL714CD offers superior speed and TTL integration. |
| TL3016CD | Faster (4.5 ns delay), higher supply current (15 mA vs. 12 mA typ), same SOIC-8 package and TTL output. | Optimized for ultra-high-speed data slicing in modern communications; requires tighter layout due to increased bandwidth sensitivity. | Choose TL3016CD when >50 MHz operation or <5 ns delay is mandatory; TL714CD remains preferred for cost-sensitive, proven-read-channel designs. |
Compared with LM311DR and TL3016CD, the TL714CD balances speed (6 ns), TTL compatibility, and self-biasing simplicity-making it ideal for legacy disk controller upgrades and medium-speed data acquisition where layout margin and supply simplicity matter more than absolute maximum frequency.
Availability
TL714CD is available at Aetrix Electronics and suitable for disk memory read-channel design, high-speed data acquisition systems, and legacy TTL interface modules requiring stable component supply and long-term obsolescence management.
Supply support for TL714CD 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 company founded in 1930, specializing in analog, embedded processing, and logic ICs with broad industrial and automotive qualification.
The TL714C family was developed specifically for high-reliability, high-speed data comparison in magnetic storage read chains and precision analog-to-digital front ends.
FAQ
What is the maximum operating frequency supported by the TL714CD?
The TL714CD supports a maximum operating frequency of 50 MHz under specified test conditions (VID = ±250 mV, CL = 25 pF, input duty cycle = 50%). This rating reflects its capability in high-speed disk read-channel applications and is validated across the full 0°C to 70°C temperature range. The TL714CD achieves this using bipolar Schottky process technology and optimized internal propagation paths.
Does the TL714CD require external biasing resistors on its inputs?
No, the TL714CD features a self-biasing input stage that establishes proper DC operating points without external resistors. This design eliminates the need for bias networks in single-supply 5-V applications, reducing component count and board space-particularly valuable in compact read-channel modules where the TL714CD is commonly deployed.
What is the meaning of the "NC" pins on the TL714CD SOIC-8 package?
The TL714CD has three NC (no internal connection) pins: pins 1, 4, and 6. These pads are physically present but unconnected to the silicon die. They serve no electrical function and must remain unconnected or grounded per layout guidelines to prevent parasitic coupling. Their presence aligns with the SOIC-8 footprint standard and supports mechanical stability during reflow.
Can the TL714CD drive standard 74LS logic inputs directly?
Yes, the TL714CD provides a TTL-compatible output with VOL ≤ 0.5 V at 16 mA sink current and VOH ≥ 2.7 V at −1 mA source current-fully meeting 74LS input voltage thresholds. This allows direct connection to 74LS-series gates and flip-flops without level-shifting circuitry, a key advantage in legacy controller designs using the TL714CD.
Is the TL714CD RoHS compliant and what is its moisture sensitivity level?
Yes, the TL714CD is RoHS compliant with NiPdAu lead finish and carries a JEDEC MSL Level-1 rating (unlimited floor life at ≤30°C/60% RH). This means it can be stored indefinitely before soldering without baking, simplifying inventory handling and SMT line logistics for production programs using the TL714CD.
TL714CD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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:
- Surface Mount
- :
- 8-SOIC
TL714CD FAQ
1.How can I place an order for TL714CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TL714CD 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 TL714CD reliable?
The price and inventory of TL714CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL714CD is usually 5 days.
3.What payment methods are accepted for TL714CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL714CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL714CD?
TL714CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL714CD 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 TL714CD?
For technical support, including TL714CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL714CD requirements.
6.How does Aetrix verify that TL714CD is sourced from the original manufacturer or authorized distributors?
All TL714CD 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 TL714CD meets industry standards.
7.What is the process for return or replacement of TL714CD?
All TL714CD units undergo pre-shipment inspection (PSI). If there is an issue with TL714CD, 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 TL714CD part is unused and in its original packaging.
Return procedure for TL714CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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