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Texas Instruments LMH6720MAX
- Part No.:
- LMH6720MAX
- Manufacturer:
- Texas Instruments
- Category:
- Video Amps and Modules
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMH6720MAX.pdf
- Description:
- IC AMP CURRENT FEEDBACK 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,243
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Product details
Overview
LMH6720MAX from Texas Instruments is a single-channel, current-feedback video operational amplifier with TTL-compatible shutdown control, 400MHz small-signal bandwidth (AV = +2V/V), 1800V/μs slew rate, and 0.02% differential gain error at 4.43MHz - optimized for NTSC/PAL video distribution and high-speed multiplexing in broadcast-grade systems.
For engineers reviewing the LMH6720MAX datasheet, LMH6720MAX pinout, LMH6720MAX application, or LMH6720MAX equivalent, this page delivers verified electrical specs, SOIC-8 package details, shutdown timing (11ns on / 7ns off), video performance metrics, and real-world design guidance for video switching, cable driving, and programmable gain amplifier implementations.
Technical Context
The LMH6720MAX implements Texas Instruments' VIP10 complementary bipolar process with current-feedback topology, enabling gain-independent bandwidth optimization via external feedback resistor tuning (recommended RF = 300Ω for AV = +2). Its high-impedance shutdown state (>1MΩ output) supports analog multiplexing without signal loading.
It operates from ±4V to ±6.25V supplies, delivers 70mA continuous output current into 100Ω, and maintains 0.1dB gain flatness to 120MHz - critical for composite video fidelity and wideband active filter stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3dB Bandwidth | 400MHz at 500mVPP output - enables full HD baseband video signal handling without attenuation |
| Slew Rate | 1800V/μs - supports fast transient response for digital video edge integrity |
| Differential Gain Error | 0.02% at 4.43MHz - meets NTSC broadcast specification for color fidelity |
| Shutdown Current | 500μA - reduces system power by >90% during inactive periods |
| Turn-on / Turn-off Time | 11ns / 7ns - allows sub-20ns channel switching in high-speed video MUX designs |
| Supply Current | 5.6mA typical (±5V) - balances speed and power efficiency for portable video gear |
| Harmonic Distortion | −58dBc HD2 / −70dBc HD3 at 20MHz - preserves signal purity in multi-tone video applications |
Pinout & Package
LMH6720MAX is housed in an 8-pin SOIC (D) package with exposed pad thermal enhancement (θJA = 145°C/W), RoHS-compliant matte tin lead finish, and Level-1 moisture sensitivity rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply rail | Accepts +4V to +6.25V; requires local 0.1μF ceramic bypass to ground |
| −IN | Inverting input | Current-feedback node; impedance ~180Ω; avoid capacitive loading |
| +IN | Non-inverting input | High-impedance voltage input; common-mode range extends to rails |
| V− | Negative supply rail | Accepts −4V to −6.25V; symmetric bypassing required |
| OUTPUT | Amplifier output | Drives 75Ω back-terminated video loads or 100Ω test conditions |
| SD | Shutdown control | TTL-compatible: <0.8V = disabled (high-Z), >2.0V = enabled; no pull-up needed |
| N/C | No connect | Pin 1 and Pin 6 are unconnected; must remain floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible shutdown | Enables nanosecond-scale channel enable/disable for video multiplexers without external logic level translation |
| Current-feedback architecture | Allows stable bandwidth scaling across gains (+1 to +6V/V) via RF selection - unlike voltage-feedback op amps |
| 0.1dB gain flatness to 120MHz | Preserves chroma/luma amplitude relationships across full NTSC/PAL baseband spectrum |
| Low distortion at 20MHz | −58dBc HD2 and −70dBc HD3 ensure minimal intermodulation artifacts in multi-channel video systems |
| Back-terminated 75Ω drive capability | Supports direct connection to coaxial video infrastructure without external termination resistors |
Applications
| HDTV Video Distribution | Video Multiplexer (MUX) |
|---|---|
Use Scenario: Routing multiple HD component video signals (Y/Pb/Pr) to a shared display matrix or recording system. IC Role / Device Role / Timing Role: Single-channel buffer and gain stage with fast enable/disable for channel selection. Use Value: 11ns turn-on time ensures glitch-free switching between sources; 0.02% DG/0.01° DP preserves color accuracy across all channels. | Use Scenario: Selecting one of eight camera feeds for real-time surveillance monitoring over coaxial infrastructure. IC Role / Device Role / Timing Role: High-speed analog switch element controlled by digital enable lines. Use Value: High-impedance shutdown state (>1MΩ) prevents crosstalk between inactive channels; 70mA drive sustains signal integrity over 100m RG-6 cable. |
| Programmable Gain Amplifier | Cable Equalization Driver |
Use Scenario: Digitally adjusting video signal amplitude in medical imaging equipment based on sensor gain calibration. IC Role / Device Role / Timing Role: Core gain block in digitally controlled PGA topology with resistor ladder feedback network. Use Value: Stable operation at AV = +1 to +6V/V with recommended RF values enables precise 1dB-step gain control without peaking or instability. | Use Scenario: Compensating high-frequency loss in 150m coaxial runs for security camera video transmission. IC Role / Device Role / Timing Role: Active equalizer stage using RC-peaked feedback network (e.g., R1/C1, R2/C2). Use Value: 400MHz bandwidth and low noise (3.4nV/√Hz) allow clean pre-emphasis of 10–50MHz components without amplifying cable-induced noise floor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed video amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6720MA/NOPB | Same die, 8-pin SOIC tube packaging (95 pcs); identical electrical specs and pinout | No difference - suitable for low-volume prototyping or manual assembly | Select LMH6720MA/NOPB when small-batch evaluation or hand-soldering is required |
| LMH6720MF/NOPB | Same die, 6-pin SOT-23 package; lacks SD pin; 5.6mA ICC; 198°C/W θJA | Cannot support shutdown functionality; limited PCB area but higher thermal resistance | Choose LMH6720MF/NOPB only for space-constrained non-multiplexing applications where shutdown is unnecessary |
Compared with LMH6720MA/NOPB, LMH6720MAX offers tape-and-reel logistics for automated SMT production; compared with LMH6720MF/NOPB, it provides full shutdown control and lower thermal resistance - making LMH6720MAX the optimal choice for volume-manufactured video MUX and PGA systems requiring reliability and feature completeness.
Availability
LMH6720MAX is available at Aetrix Electronics and suitable for HDTV distribution, broadcast video routing, and high-speed analog multiplexing requiring stable component supply, long-term lifecycle support, and TI-authorized traceability.
Supply support for LMH6720MAX 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 high-performance signal chain solutions.
The LMH6720MAX belongs to TI's VIP10-based wideband video op amp family, engineered specifically for broadcast-quality video signal conditioning, cable driving, and high-speed analog switching applications demanding low distortion and nanosecond timing precision.
FAQ
What is the recommended feedback resistor value for LMH6720MAX at a gain of +2V/V?
The LMH6720MAX datasheet specifies a recommended feedback resistor (RF) of 300Ω for non-inverting gain of +2V/V with ±5V supplies. This value delivers near-maximal bandwidth (400MHz), excellent gain flatness (0.1dB to 120MHz), and stable operation without peaking or oscillation. Deviating significantly below 300Ω risks overshoot and instability; increasing RF reduces bandwidth but improves phase margin.
Does LMH6720MAX support single-supply operation?
Yes, LMH6720MAX supports single-supply operation with VCC = 8V to 12.5V (e.g., +12V and GND), but the shutdown pin (SD) voltage thresholds shift: SD must be driven above VCC/2 (≥6V) to enable and below VCC/2 −1V (≤5V) to disable. Input common-mode range extends to the rails, and output swing is ±3.4V into 100Ω - ensuring usable dynamic range in properly biased single-supply video circuits.
How does LMH6720MAX differ from LMH6714 in video performance?
LMH6720MAX exhibits 0.02% differential gain and 0.01° differential phase error at 4.43MHz, while LMH6714 achieves 0.01%/0.01° under identical conditions. Both use the same VIP10 process and current-feedback architecture, but LMH6714 is optimized for ultimate video fidelity in fixed-gain broadcast paths, whereas LMH6720MAX adds TTL-compatible shutdown for dynamic signal routing - trading a marginal 0.01% DG penalty for multiplexing capability.
Can LMH6720MAX drive a 75Ω back-terminated load directly?
Yes, LMH6720MAX is explicitly characterized and specified for driving 75Ω back-terminated video loads, delivering 0.02% differential gain and 0.01° differential phase error at 4.43MHz. Its 70mA continuous output current and low output impedance (0.06Ω closed-loop) ensure stable termination without external series resistors - simplifying PCB layout and preserving signal integrity in professional video infrastructure.
What is the thermal resistance (θJA) of LMH6720MAX in SOIC-8 package?
The LMH6720MAX in 8-pin SOIC (D) package has a junction-to-ambient thermal resistance (θJA) of 145°C/W, as confirmed in TI's SNOSA39G datasheet. This value assumes standard JEDEC 2-layer board conditions. For high-power-density layouts, adding a copper pour under the exposed pad (if present) or using thermal vias can reduce effective θJA by 15–25%, improving reliability in sustained 70mA output operation.
LMH6720MAX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- VIP10™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- 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:
- 8-SOIC
LMH6720MAX FAQ
1.How can I place an order for LMH6720MAX through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6720MAX 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 LMH6720MAX reliable?
The price and inventory of LMH6720MAX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6720MAX is usually 5 days.
3.What payment methods are accepted for LMH6720MAX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6720MAX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6720MAX?
LMH6720MAX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6720MAX 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 LMH6720MAX?
For technical support, including LMH6720MAX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6720MAX requirements.
6.How does Aetrix verify that LMH6720MAX is sourced from the original manufacturer or authorized distributors?
All LMH6720MAX 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 LMH6720MAX meets industry standards.
7.What is the process for return or replacement of LMH6720MAX?
All LMH6720MAX units undergo pre-shipment inspection (PSI). If there is an issue with LMH6720MAX, 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 LMH6720MAX part is unused and in its original packaging.
Return procedure for LMH6720MAX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMH6720MAX Tags
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