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Texas Instruments LMH6714MFX/NOPB
- Part No.:
- LMH6714MFX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Video Amps and Modules
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMH6714MFX/NOPB.pdf
- Description:
- IC AMP CURRENT FEEDBACK SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,132
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Product details
Overview
LMH6714MFX/NOPB from Texas Instruments is a single, unity-gain-stable, current-feedback video operational amplifier in a 5-pin SOT-23 package. It delivers 400MHz small-signal bandwidth (AV = +2V/V, VOUT = 500mVPP), 1800V/μs slew rate, and 0.01% differential gain / 0.01° differential phase error for NTSC/PAL video signals driving 75Ω back-terminated loads - enabling broadcast-quality video signal conditioning in compact portable systems.
For engineers reviewing the LMH6714MFX/NOPB datasheet, LMH6714MFX/NOPB pinout, LMH6714MFX/NOPB application, or LMH6714MFX/NOPB equivalent, key selection criteria include its 5-pin SOT-23 footprint, current-feedback architecture requiring precise RF selection (300Ω typical), low 5.6mA supply current at ±5V, and absence of shutdown functionality - distinguishing it from LMH6720 variants.
Technical Context
The LMH6714MFX/NOPB uses TI's VIP10 high-speed complementary bipolar process with current-feedback topology, enabling wide bandwidth independent of closed-loop gain when paired with appropriate feedback resistors. Its input stage features ~180Ω inverting-input impedance and is optimized for non-inverting gains of +1 to +6V/V and inverting gains of −1 to −5V/V.
It operates from ±4V to ±6.25V supplies (8V–12.5V total), supports rail-to-rail common-mode input (±VCC), and delivers 70mA continuous output current into 100Ω loads. The device is unity-gain stable and requires no external compensation - unlike voltage-feedback op amps - but mandates careful PCB layout to minimize parasitic capacitance at the inverting input.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3dB Bandwidth | 400MHz at AV = +2V/V, 500mVPP output - enables full HD video baseband signal amplification without attenuation |
| Slew Rate | 1800V/μs - supports fast transient response for composite sync pulses and digital video edges |
| Differential Gain / Phase | 0.01% / 0.01° at 4.43MHz, RL = 150Ω - meets broadcast-grade NTSC/PAL fidelity requirements |
| Supply Current | 5.6mA at ±5V - enables low-power portable video front-ends without thermal derating |
| Output Current | 70mA continuous - drives 75Ω back-terminated coaxial cables directly without buffer stages |
| Input Voltage Range | ±2.2V common-mode - accommodates standard video DC restoration levels and sync tip excursions |
| Harmonic Distortion | −58dBc HD2 / −70dBc HD3 at 20MHz - preserves signal integrity in multi-channel analog video distribution |
Pinout & Package
LMH6714MFX/NOPB is housed in a 5-pin SOT-23 (DBV) package with exposed pad (non-electrical), rated for −40°C to +85°C operation and RoHS-compliant matte tin (SN) lead finish. Thermal resistance θJA is 232°C/W.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | V+ | Positive supply terminal - must be bypassed with 0.1μF ceramic capacitor placed ≤2mm from pin |
| 2 | Inverting Input (−) | Current-summing node - extremely low impedance (~180Ω); sensitive to stray capacitance; avoid routing traces near ground plane |
| 3 | Non-Inverting Input (+) | High-impedance voltage input - 2MΩ resistance, 1.0pF capacitance; used for reference or signal injection in non-inverting configurations |
| 4 | V− | Negative supply terminal - requires symmetric bypassing to match V+; critical for PSRR performance |
| 5 | Output | Low-impedance drive node - 0.06Ω closed-loop output resistance; capable of sourcing/sinking 70mA into 100Ω loads |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback architecture | Enables flat frequency response across gains +1 to +6V/V via RF tuning (300Ω nominal), avoiding gain-bandwidth trade-offs of voltage-feedback op amps |
| 0.1dB gain flatness to 120MHz | Preserves amplitude consistency across SD/HD video spectrum - essential for chroma/luma separation and color fidelity |
| Low 3.4nV/√Hz input voltage noise | Minimizes SNR degradation in high-gain video preamplifier stages, especially critical for low-level camera sensor outputs |
| Unity-gain stability | Eliminates need for external compensation components - simplifies design of buffer, cable driver, and active filter circuits |
| Back-terminated 75Ω drive capability | Direct interface to broadcast video infrastructure without external line drivers or termination networks |
Applications
| HDTV Signal Distribution | Professional Video Switcher |
|---|---|
|
Use Scenario: Amplifying and distributing 1080p/60Hz HDMI-derived analog component video (Y/Pb/Pr) across multiple monitors in broadcast control rooms. IC Role / Device Role / Timing Role: Non-inverting gain-of-two buffer with 75Ω source termination, preserving rise time <1.5ns and differential phase accuracy. Use Value: Eliminates need for discrete emitter-follower buffers while maintaining <0.01° phase error - ensuring pixel-perfect chroma alignment across displays. |
Use Scenario: High-speed analog switching matrix routing composite NTSC signals between cameras, recorders, and monitors with sub-12ns settling. IC Role / Device Role / Timing Role: Unity-gain video buffer per channel, providing high isolation and fast turn-on/turn-off in multiplexed architectures. Use Value: Enables clean signal transitions without ghosting or smearing during real-time switching - critical for live production environments. |
| Coaxial Cable Equalization | Medical Endoscope Imaging |
|
Use Scenario: Compensating high-frequency loss in 150m RG-6 coaxial runs carrying uncompressed SDI-like video from remote sensors. IC Role / Device Role / Timing Role: Active equalizer stage using RC peaking network in feedback loop, configured for inverse cable roll-off. Use Value: Restores >120MHz bandwidth at receiver end - recovering fine detail and edge sharpness lost over long cable runs. |
Use Scenario: Conditioning low-amplitude, high-bandwidth analog video from CMOS image sensors in minimally invasive surgical scopes. IC Role / Device Role / Timing Role: Low-noise, high-SR preamplifier with DC-coupled input and 70mA drive into flexible micro-coax. Use Value: Maintains >65dB SNR at 40MHz while fitting within 2.9mm × 1.6mm SOT-23 footprint - enabling ultra-compact probe electronics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wideband video amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6720MF/NOPB | 6-pin SOT-23 with TTL-compatible shutdown pin; 500μA shutdown current; identical bandwidth and video specs | Required where power gating or analog multiplexing is needed; adds one control signal and pin | Select LMH6720MF/NOPB only if system-level power sequencing or channel enable/disable is required |
| CLC400AJE | Legacy voltage-feedback op amp; 200MHz bandwidth; higher 12mA supply current; no current-feedback RF tuning | Used in legacy designs with fixed-gain, lower-bandwidth requirements; lacks differential gain/phase optimization | Choose CLC400AJE only for drop-in replacement in existing CLC400-based boards where redesign is prohibited |
Compared with LMH6720MF/NOPB, LMH6714MFX/NOPB saves board space and eliminates shutdown logic complexity; compared with CLC400AJE, it delivers 2× bandwidth, 50% lower power, and broadcast-grade video linearity - making it the preferred choice for new high-definition analog video designs.
Availability
LMH6714MFX/NOPB is available at Aetrix Electronics and suitable for HDTV signal distribution, professional video switchers, coaxial cable equalization, and medical endoscope imaging requiring stable component supply and guaranteed long-term manufacturability.
Supply support for LMH6714MFX/NOPB 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 leadership in high-speed op amp design and video signal chain solutions.
The LMH6714MFX/NOPB belongs to TI's LMH67xx family of current-feedback video op amps, engineered specifically for broadcast-quality analog video systems demanding ultra-low distortion, high slew rate, and precise differential gain/phase performance.
FAQ
What is the recommended feedback resistor value for LMH6714MFX/NOPB in a non-inverting gain-of-two configuration?
The LMH6714MFX/NOPB requires a 300Ω feedback resistor (RF) for optimal bandwidth, gain flatness, and stability at AV = +2V/V with ±5V supplies. This value is specified in the Electrical Characteristics table and validated in Figure 31 of the SNOSA39G datasheet. Using RF = 300Ω achieves 400MHz −3dB bandwidth and 0.1dB gain flatness to 120MHz. Deviating significantly - e.g., below 200Ω - risks peaking and instability.
Does LMH6714MFX/NOPB support shutdown functionality?
No, LMH6714MFX/NOPB does not include a shutdown pin or function. It is a fixed-operation amplifier. Shutdown capability is exclusive to the LMH6720 variant (e.g., LMH6720MF/NOPB), which adds a sixth pin (SD) with TTL-compatible control. Attempting to force shutdown on LMH6714MFX/NOPB by cycling supplies may cause reliability issues and violates Absolute Maximum Ratings for supply sequencing.
Can LMH6714MFX/NOPB drive a 75Ω back-terminated load directly?
Yes, LMH6714MFX/NOPB is explicitly characterized for 75Ω back-terminated video loads, delivering 0.01% differential gain and 0.01° differential phase error at 4.43MHz (NTSC). Its 70mA continuous output current and 0.06Ω closed-loop output resistance enable direct drive without external buffers. Layout best practices - including short traces, removed ground plane under pins 2/3/5, and local 0.1μF bypassing - are mandatory to maintain this performance.
What is the maximum operating temperature range for LMH6714MFX/NOPB?
The LMH6714MFX/NOPB is rated for operation from −40°C to +85°C ambient temperature, as confirmed in the Operating Ratings table of SNOSA39G. This range applies to all LMH6714 variants (including MFX/NOPB) and aligns with commercial/industrial video equipment requirements. Junction temperature must remain ≤150°C, requiring thermal design that accounts for its 232°C/W θJA in the 5-pin SOT-23 (DBV) package.
Is LMH6714MFX/NOPB pin-compatible with other LMH67xx variants?
No, LMH6714MFX/NOPB is not pin-compatible with LMH6720 or LMH6722. It uses a 5-pin SOT-23 (DBV) package with pinout V+/−IN/+IN/V−/OUT. LMH6720 requires 6 pins (adding SD), and LMH6722 is a 14-pin SOIC/TSSOP/WSON quad amplifier. Substituting packages without board redesign will result in incorrect connections, missing bias paths, or open pins - invalidating all electrical specifications.
LMH6714MFX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SC-74A, SOT-753
- Series:
- VIP10™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Current Feedback
- Output Type:
- -
- Number of Circuits:
- 1
- -3db Bandwidth:
- 400 MHz
- Slew Rate:
- 1800V/µs
- Current - Supply:
- 5.6 mA
- Current - Output / Channel:
- 70 mA
- Voltage - Supply, Single/Dual (±):
- 8V ~ 12.5V, ±4V ~ 6.25V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- SOT-23-5
LMH6714MFX/NOPB FAQ
1.How can I place an order for LMH6714MFX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6714MFX/NOPB 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 LMH6714MFX/NOPB reliable?
The price and inventory of LMH6714MFX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6714MFX/NOPB is usually 5 days.
3.What payment methods are accepted for LMH6714MFX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6714MFX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6714MFX/NOPB?
LMH6714MFX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6714MFX/NOPB 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 LMH6714MFX/NOPB?
For technical support, including LMH6714MFX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6714MFX/NOPB requirements.
6.How does Aetrix verify that LMH6714MFX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMH6714MFX/NOPB 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 LMH6714MFX/NOPB meets industry standards.
7.What is the process for return or replacement of LMH6714MFX/NOPB?
All LMH6714MFX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMH6714MFX/NOPB, 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 LMH6714MFX/NOPB part is unused and in its original packaging.
Return procedure for LMH6714MFX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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