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Texas Instruments LMH6715MAX
- Part No.:
- LMH6715MAX
- Manufacturer:
- Texas Instruments
- Category:
- Video Amps and Modules
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMH6715MAX.pdf
- Description:
- IC AMP CURRENT FEEDBACK 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,484
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Product details
Overview
LMH6715MAX from Texas Instruments is a dual wideband current-feedback operational amplifier optimized for broadcast-quality video signal processing. It delivers 400MHz small-signal bandwidth at AV = +2V/V, 1300V/μs slew rate, and 0.02% / 0.02° differential gain/phase error driving four 75Ω video loads - enabling high-density NTSC/PAL/HDTV line drivers and IQ amplifiers.
For engineers reviewing the LMH6715MAX datasheet, LMH6715MAX pinout, LMH6715MAX application, or LMH6715MAX equivalent, key selection criteria include its ±5V supply operation, SOIC-8 package, channel-to-channel crosstalk of −70dB at 10MHz, 0.1dB gain flatness to 100MHz, and current-feedback topology requiring precise RF selection (500Ω typical) for stability and bandwidth control.
Technical Context
The LMH6715MAX implements TI's VIP10 complementary bipolar process with current-feedback architecture, decoupling bandwidth from closed-loop gain via feedback resistor (RF) tuning rather than transconductance limitations. Its input stage uses high-speed bipolar transistors with matched emitter-coupled pairs, enabling tight AC/DC channel matching across the dual amplifier die.
Each amplifier features a low-impedance, high-current output stage capable of delivering ±70mA into 100Ω, with common-mode input range of ±2.2V and output swing of ±3.9V under ±5V supplies. The architecture inherently supports fast settling (12ns to 0.05%) and minimal thermal tailing at low gains, critical for video pulse fidelity and anti-aliasing filter applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal Bandwidth | 400MHz at AV = +2V/V, RL = 100Ω - enables full HD video signal amplification without attenuation up to 100MHz baseband. |
| Slew Rate | 1300V/μs - supports 2V step response with 12ns settling to 0.05%, essential for sharp video edge reproduction. |
| Differential Gain/Phase | 0.02% / 0.02° at 4.43MHz, RL = 150Ω - meets broadcast-grade color fidelity requirements for NTSC/PAL systems. |
| Channel Crosstalk | −70dB at 10MHz - ensures isolation between dual channels in differential line drivers and IQ signal paths. |
| Supply Current | 5.8mA per amplifier at ±5V - balances high-speed performance with power efficiency in space-constrained video modules. |
| Gain Flatness | 0.1dB to 100MHz - maintains amplitude consistency across HDTV baseband, reducing post-processing correction needs. |
| Input Noise | 3.4nV/√Hz voltage noise - preserves SNR in wideband active filters and transimpedance amplifiers handling low-level signals. |
Pinout & Package
LMH6715MAX is housed in an 8-pin SOIC (D) package with 1.27mm pitch, 3.9mm width, and 1.75mm max height, compliant with JEDEC MS-012AA and RoHS. Thermal resistance is θJA = 145°C/W and θJC = 65°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Amp A) | Current-summing node for Amp A; requires low-parasitic layout to preserve bandwidth and stability. |
| 2 | Non-Inverting Input (Amp A) | High-impedance input (1MΩ) for Amp A; sensitive to stray capacitance - keep trace short and away from power planes. |
| 3 | Output (Amp A) | Class AB output capable of ±70mA; series Rs recommended when driving >100pF capacitive loads to optimize settling. |
| 4 | V– Supply | Negative supply rail (±5V typical); requires local 0.1μF ceramic + bulk tantalum decoupling within 5mm. |
| 5 | V+ Supply | Positive supply rail (±5V typical); shared supply pins demand careful ground separation between channels to minimize crosstalk. |
| 6 | Output (Amp B) | Matched output stage to Amp A; physical separation from Amp A's external components improves channel isolation. |
| 7 | Non-Inverting Input (Amp B) | Matched to Pin 2; layout symmetry critical for differential line driver accuracy and CMRR. |
| 8 | Inverting Input (Amp B) | Matched to Pin 1; routing symmetry and equal trace length to Pins 7/6 ensure <0.25° phase matching per Figure 7. |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback topology | Enables stable 400MHz bandwidth independent of gain via RF tuning - eliminates gain-bandwidth trade-off in voltage-feedback op amps. |
| Tightly matched dual amplifiers | On-die matching ensures <0.25° linear phase deviation and <0.02% differential gain error - critical for single-to-differential conversion fidelity. |
| Low-distortion video drive | −75dBc 3rd harmonic distortion at 20MHz allows clean amplification of composite video and digital baseband signals without ghosting or color shift. |
| High-output current capability | ±70mA output drives four back-terminated 75Ω video lines simultaneously - eliminates need for external buffer stages in distribution amplifiers. |
| Unity-gain stable operation | Operates stably at AV = +1V/V with appropriate RF (e.g., 300Ω), supporting wideband active filters and integrators without compensation networks. |
Applications
| HDTV Line Driver | IQ Signal Amplifier |
|---|---|
Use Scenario: Driving multiple HDMI or SDI source outputs from a single video processor ASIC to distribution panels or monitors. IC Role / Device Role / Timing Role: Dual-channel line driver providing matched gain, phase, and DC offset between Y/C or I/Q paths. Use Value: 0.02° phase matching and −70dB crosstalk prevent chroma misalignment and image ghosting in multi-display broadcast environments. | Use Scenario: Amplifying in-phase and quadrature (I/Q) baseband signals in software-defined radio (SDR) front-ends prior to DAC or mixer stages. IC Role / Device Role / Timing Role: Dual-path wideband amplifier maintaining precise 90° phase relationship and amplitude balance across 0–100MHz. Use Value: 0.1dB gain flatness and <0.25° linear phase deviation preserve EVM and constellation integrity in QAM-64/256 modulation schemes. |
| Video Switching Matrix | Wideband Active Filter |
Use Scenario: High-speed analog video switching in broadcast production switchers handling 1080p60 signals with minimal latency and artifact generation. IC Role / Device Role / Timing Role: Buffer and gain stage placed after analog crosspoint switches to restore signal integrity and drive long coaxial cables. Use Value: 1300V/μs slew rate and 400MHz bandwidth eliminate edge rounding during rapid switching transitions, preserving vertical blanking interval timing. | Use Scenario: Anti-aliasing and reconstruction filtering in high-speed data acquisition systems sampling at ≥100MSPS. IC Role / Device Role / Timing Role: Sallen-Key or MFB topology active filter using both amplifiers for 4th-order response with programmable cutoff. Use Value: Unity-gain stability and 0.02% differential gain ensure passband flatness and stopband rejection meet IEEE 1241 SFDR requirements for ADC/DAC interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual wideband op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6720MAX | Single-channel, identical specs except no second amplifier; same SOIC-8 footprint but different pinout. | Not suitable for dual-path applications like IQ amplification or differential drivers - requires two devices for equivalent functionality. | Select LMH6720MAX only when board space permits duplication or single-channel use case dominates. |
| THS3202D | Higher 1.8GHz bandwidth but higher 12.5mA/channel supply current; requires ±15V supplies for full output swing. | Better suited for RF IF amplification above 200MHz; less optimal for 75Ω video loads due to higher quiescent power and supply constraints. | Choose THS3202D when >1GHz bandwidth is mandatory and power/thermal budget allows; LMH6715MAX remains preferred for cost-sensitive, ±5V video systems. |
Compared with LMH6715MAX, LMH6720MAX reduces channel count while retaining identical per-amplifier performance but increases PCB area and component count for dual-path designs; THS3202D offers wider bandwidth at the expense of higher supply voltage, power, and reduced video-optimized distortion specs - making LMH6715MAX the balanced choice for broadcast video and portable IQ signal chains.
Availability
LMH6715MAX is available at Aetrix Electronics and suitable for HDTV line drivers, video switching matrices, IQ signal amplifiers, and wideband active filters requiring stable component supply across industrial and broadcast equipment lifecycles.
Supply support for LMH6715MAX 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 analog ICs for industrial, automotive, and communications markets.
The LMH6715MAX belongs to TI's high-speed video op amp product line, engineered specifically for broadcast-quality signal integrity in NTSC/PAL/HDTV systems, differential line drivers, and wideband instrumentation where gain flatness, phase matching, and low crosstalk are non-negotiable.
FAQ
What is the recommended feedback resistor value for LMH6715MAX in a non-inverting gain-of-2 configuration?
The recommended feedback resistor (RF) for LMH6715MAX at AV = +2V/V is 500Ω, as validated in the Electrical Characteristics table and Figure 29. This value ensures optimal bandwidth (400MHz), gain flatness (0.1dB to 100MHz), and stability - avoiding peaking or oscillation seen at lower RF values like 200Ω. LMH6715MAX requires precise RF selection due to its current-feedback architecture, and deviations must be verified with load-dependent testing.
Can LMH6715MAX drive four 75Ω video loads simultaneously while maintaining broadcast video specifications?
Yes, LMH6715MAX is explicitly characterized to drive up to four back-terminated 75Ω loads while maintaining 0.02% differential gain and 0.02° differential phase errors for NTSC/PAL signals. Its ±70mA output current capability, combined with low distortion (−75dBc HD3 at 20MHz) and 400MHz bandwidth, ensures compliance with SMPTE 253M and ITU-R BT.601 standards - confirmed in Figure 1 and the Applications section of the LMH6715MAX datasheet.
What is the maximum ambient temperature for continuous operation of LMH6715MAX in SOIC package?
LMH6715MAX is rated for continuous operation from −40°C to +85°C ambient temperature, as specified in the Operating Ratings table. With θJA = 145°C/W, its maximum junction temperature remains ≤150°C at +85°C ambient when dissipating ≤0.45W (calculated as (150 − 85)/145). At full ±5V supply and 5.8mA per amplifier, quiescent power is ~58mW - well within thermal limits even in compact enclosures.
Does LMH6715MAX require external compensation components for unity-gain stability?
No, LMH6715MAX is unity-gain stable without external compensation, as stated in the Features list and verified in Figure 29 (Frequency Response vs. RF). When configured for AV = +1V/V, a feedback resistor of ~300Ω provides stable operation with near-maximal bandwidth and minimal peaking - unlike many current-feedback op amps that mandate minimum gain. This simplifies design of wideband integrators and buffers using LMH6715MAX.
How does LMH6715MAX compare to CLC412 in terms of pin compatibility and performance replacement?
LMH6715MAX is documented as an improved replacement for CLC412 but is not pin-compatible - it uses an 8-pin SOIC package versus CLC412's 16-pin SOIC. To match CLC412 bandwidth, LMH6715MAX requires RF ≈ 700Ω instead of 500Ω (per Figure 29), and its dual-channel integration eliminates the need for two CLC412s. LMH6715MAX improves on CLC412 with lower differential gain/phase error (0.02% vs. 0.05%), higher slew rate (1300V/μs vs. 900V/μs), and reduced supply current (5.8mA vs. 7.5mA per channel).
LMH6715MAX 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:
- Obsolete
- Applications:
- Current Feedback
- Output Type:
- -
- Number of Circuits:
- 2
- -3db Bandwidth:
- 400 MHz
- Slew Rate:
- 1300V/µs
- Current - Supply:
- 5.8 mA
- Current - Output / Channel:
- 70 mA
- Voltage - Supply, Single/Dual (±):
- 10V ~ 12V, ±5V ~ 6V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
LMH6715MAX FAQ
1.How can I place an order for LMH6715MAX through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6715MAX 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 LMH6715MAX reliable?
The price and inventory of LMH6715MAX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6715MAX is usually 5 days.
3.What payment methods are accepted for LMH6715MAX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6715MAX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6715MAX?
LMH6715MAX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6715MAX 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 LMH6715MAX?
For technical support, including LMH6715MAX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6715MAX requirements.
6.How does Aetrix verify that LMH6715MAX is sourced from the original manufacturer or authorized distributors?
All LMH6715MAX 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 LMH6715MAX meets industry standards.
7.What is the process for return or replacement of LMH6715MAX?
All LMH6715MAX units undergo pre-shipment inspection (PSI). If there is an issue with LMH6715MAX, 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 LMH6715MAX part is unused and in its original packaging.
Return procedure for LMH6715MAX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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