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Analog Devices Inc. LT6551IMS#TRPBF
- Part No.:
- LT6551IMS#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Video Amps and Modules
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LT6551IMS#TRPBF.pdf
- Description:
- IC AMP VOLTAGE FEEDBACK 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,053
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Product details
Overview
LT6551IMS#TRPBF from Analog Devices (formerly Linear Technology) is a quad 3.3V rail-to-rail video amplifier optimized for RGB + sync signal conditioning in automotive displays and LCD/CRT-compatible systems. It delivers fixed gain of 2, 110MHz –3dB bandwidth, 340V/µs slew rate, 3% settling in 20ns, and 60mA output drive - enabling direct driving of double-terminated 75Ω coaxial cables without external gain resistors.
For engineers reviewing the LT6551IMS#TRPBF datasheet, LT6551IMS#TRPBF pinout, LT6551IMS#TRPBF application, or LT6551IMS#TRPBF equivalent, key selection criteria include single-supply operation down to 3V, input common-mode range extending to ground, rail-to-rail output swing, differential gain/phase <0.09%, and MSOP-10 flow-thru pinout compatibility with high-density video routing.
Technical Context
The LT6551IMS#TRPBF integrates four identical voltage-feedback amplifiers with internal 450Ω gain-setting resistors configured for precise ×2 gain. Its input stage employs a high-slew transconductance topology with back-to-back input diodes limiting differential voltage to ±1.4V and RIN current limiting per channel.
Each amplifier features complementary drive generation for rail-to-rail output swing, input common-mode range from ground to VCC–1.75V, and robust capacitive load handling up to 150pF. The device operates across –40°C to 85°C and supports stable performance into 75Ω or 150Ω loads with <0.25dB gain flatness to 30MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth (–3dB) | 110MHz at 150Ω load - supports full HD video bandwidth with margin |
| Slew Rate | 340V/µs - enables clean 1080p/60 video edge transitions without distortion |
| Settling Time (3%) | 20ns into 150Ω - meets tight timing budgets for pixel clock-aligned video signals |
| Output Drive | ±60mA - drives 75Ω coax directly without external buffers or level-shifting |
| Input Common-Mode Range | Ground to VCC–1.75V (e.g., 0V to 1.55V @ 3.3V) - accepts unclamped RGB baseband without AC coupling |
| Rail-to-Rail Output | Swings within 400mV of rails into 150Ω - maximizes dynamic range for low-voltage video systems |
| Differential Gain / Phase | 0.09% / 0.09° - preserves color fidelity in broadcast- and automotive-grade video paths |
Pinout & Package
LT6551IMS#TRPBF is housed in a 10-lead MSOP package (3mm × 5mm) with exposed pad thermal enhancement and flow-thru pinout for minimal signal crosstalk and simplified PCB layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | Input (RIN, GIN, BIN, SYNCIN) | Differential-input video channels with ESD protection diodes to VCC/GND |
| 5 | GND | Power and signal reference plane; fused to lead frame for thermal conduction |
| 6 | VCC | Positive supply (3V to 12.6V); powers all four amplifiers and internal bias networks |
| 7, 8, 9, 10 | Output (ROUT, GOUT, BOUT, SYNCOUT) | Rail-to-rail outputs with 60mA sourcing/sinking capability and 75Ω cable drive optimization |
Key Features
| Feature | Design Value |
|---|---|
| Fixed ×2 gain architecture | Eliminates 8 external resistors - reduces BOM count, layout area, and matching errors in RGB+sync paths |
| Single-supply operation (3V–12.6V) | Enables direct integration into 3.3V automotive infotainment and portable display power domains |
| Input includes ground | Accepts DC-coupled RGB signals with 0V black level - removes need for AC-coupling caps and bias networks |
| Flow-thru MSOP-10 pinout | Minimizes trace length and crosstalk between matched RGB channels on dense video PCBs |
| Thermally enhanced package | Pin 5 fused to lead frame - improves θJA to 110°C/W with 540mm² copper, supporting 4-channel operation at 85°C ambient |
Applications
| Automotive Display Interface | RGB Video Distribution |
|---|---|
Use Scenario: Driving RGB + sync signals from SoC or GPU to TFT-LCD panel in vehicle instrument cluster or center console. IC Role / Device Role / Timing Role: Quad video buffer amplifier with fixed gain, low group delay, and rail-to-rail output swing. Use Value: Eliminates external gain resistors and level shifters while maintaining <0.09% differential gain error across –40°C to 85°C. |
Use Scenario: Splitting and amplifying RGB video from media processor to multiple downstream displays or capture devices. IC Role / Device Role / Timing Role: High-fidelity distribution amplifier with 110MHz bandwidth and 20ns settling for pixel-accurate replication. Use Value: Maintains signal integrity over 1m+ 75Ω coax runs with no added jitter or phase skew between R/G/B channels. |
| S-Video Signal Processing | Low-Voltage Set-Top Box Output |
Use Scenario: Converting composite video to S-Video (Y/C) using dual LT6551 channels in matrix configuration. IC Role / Device Role / Timing Role: Precision gain-matched amplifier pair implementing luminance/chrominance separation equations. Use Value: Achieves <0.09° differential phase error without external trimming, critical for NTSC/PAL color accuracy. |
Use Scenario: Final-stage RGB driver in cost-sensitive 3.3V STB output stage feeding HDMI transmitter or analog DAC. IC Role / Device Role / Timing Role: Low-power, high-speed video interface IC with 8.5mA per amplifier supply current. Use Value: Reduces total solution power by 30% vs discrete op-amp alternatives while meeting 24-bit RGB timing specs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad video amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6738MA/NOPB | Higher 1.8GHz GBW but requires external gain resistors; no integrated 75Ω drive optimization | Better for wideband test equipment; less suitable for production RGB video due to layout sensitivity and calibration overhead | Choose LMH6738MA/NOPB only when >500MHz small-signal bandwidth is required and board space allows precision resistor placement. |
| THS7374IPWPR | Integrated 6dB gain, 120MHz bandwidth, but limited to 5V operation and no rail-to-rail output | Designed for legacy 5V CVBS/S-Video; lacks ground-referenced input needed for modern 3.3V RGB baseband | THS7374IPWPR fits 5V SDTV designs but cannot replace LT6551IMS#TRPBF in 3.3V automotive RGB systems requiring DC-coupled inputs. |
Compared with LMH6738MA/NOPB and THS7374IPWPR, the LT6551IMS#TRPBF uniquely combines fixed ×2 gain, 3.3V rail-to-rail I/O, ground-referenced input, and 75Ω cable drive in a thermally optimized MSOP-10 - making it the only drop-in solution for compact, low-voltage RGB+sync video interfaces.
Availability
LT6551IMS#TRPBF is available at Aetrix Electronics and suitable for automotive display interfaces, RGB video distribution systems, and low-voltage set-top box outputs requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature grade (–40°C to 85°C).
Supply support for LT6551IMS#TRPBF 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
Analog Devices acquired Linear Technology in 2017 and maintains its high-performance analog portfolio, including precision amplifiers, data converters, and power management ICs for demanding industrial, automotive, and communications applications.
The LT6551IMS#TRPBF belongs to Linear's legacy high-speed video amplifier product line, engineered specifically for DC-coupled RGB signal conditioning in space-constrained, low-voltage video systems where gain accuracy, channel matching, and thermal efficiency are critical.
FAQ
What is the operating supply voltage range for the LT6551IMS#TRPBF?
The LT6551IMS#TRPBF operates from a single supply of 3V to 12.6V. At 3.3V, it delivers full performance including rail-to-rail output swing, 110MHz bandwidth, and 340V/µs slew rate. Minimum supply is guaranteed by PSRR testing, and the device supports both single- and split-supply configurations - though the LT6551 variant is optimized for single-supply use with GND referenced to Pin 5.
Does the LT6551IMS#TRPBF require external gain-setting resistors?
No. The LT6551IMS#TRPBF integrates internal 450Ω feedback and gain resistors to provide a precise ×2 voltage gain per channel. This eliminates eight external resistors typically needed for quad RGB amplification, reducing PCB area, BOM cost, and gain mismatch between R/G/B/SYNC paths - a key advantage over general-purpose op-amps like the LMH6738MA/NOPB.
Can the LT6551IMS#TRPBF drive 75Ω coaxial cables directly?
Yes. The LT6551IMS#TRPBF is explicitly characterized for driving double-terminated 75Ω coaxial cables, delivering 60mA output current and maintaining <0.25dB gain flatness to 30MHz. Its output stage is optimized for this load, eliminating the need for external current-boosting buffers or termination network redesign when replacing discrete solutions.
What is the input common-mode voltage range of the LT6551IMS#TRPBF?
At 3.3V supply, the LT6551IMS#TRPBF accepts input voltages from ground (0V) to 1.55V - fully covering standard RGB baseband levels (0.3V–0.7V peak white). This ground-inclusive range enables DC-coupled connection without AC-coupling capacitors or level-shifting circuitry, simplifying design and preserving low-frequency video content.
Is thermal management required for the LT6551IMS#TRPBF in continuous operation?
Yes - especially in multi-channel or high-ambient environments. The LT6551IMS#TRPBF uses Pin 5 (GND) fused to the lead frame as a thermal path. With 540mm² of 2oz copper on both PCB sides, θJA is 110°C/W. At 85°C ambient and full 4-channel operation, junction temperature remains below 125°C - well within the 150°C absolute maximum, provided proper board copper is implemented.
LT6551IMS#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Voltage Feedback
- Output Type:
- Rail-to-Rail
- Number of Circuits:
- 4
- -3db Bandwidth:
- 90 MHz
- Slew Rate:
- 600V/µs
- Current - Supply:
- 8.5 mA
- Current - Output / Channel:
- 60 mA
- Voltage - Supply, Single/Dual (±):
- 3V ~ 12.6V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 10-MSOP
LT6551IMS#TRPBF FAQ
1.How can I place an order for LT6551IMS#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6551IMS#TRPBF 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 LT6551IMS#TRPBF reliable?
The price and inventory of LT6551IMS#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6551IMS#TRPBF is usually 5 days.
3.What payment methods are accepted for LT6551IMS#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6551IMS#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6551IMS#TRPBF?
LT6551IMS#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6551IMS#TRPBF 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 LT6551IMS#TRPBF?
For technical support, including LT6551IMS#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6551IMS#TRPBF requirements.
6.How does Aetrix verify that LT6551IMS#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT6551IMS#TRPBF 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 LT6551IMS#TRPBF meets industry standards.
7.What is the process for return or replacement of LT6551IMS#TRPBF?
All LT6551IMS#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6551IMS#TRPBF, 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 LT6551IMS#TRPBF part is unused and in its original packaging.
Return procedure for LT6551IMS#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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