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Analog Devices Inc. LT6550CMS#TRPBF
- Part No.:
- LT6550CMS#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Video Amps and Modules
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LT6550CMS#TRPBF.pdf
- Description:
- IC AMP VOLTAGE FEEDBACK 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,360
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Product details
Overview
LT6550CMS#TRPBF from Analog Devices (formerly Linear Technology) is a triple-channel, 3.3V/±5V high-speed voltage-feedback video amplifier optimized for RGB signal processing in automotive displays and LCD/CRT systems. It delivers 110MHz –3dB bandwidth, 340V/µs slew rate, rail-to-rail output swing, internal gain-of-2 resistors, and operates from single 3V–12.6V or split ±5V supplies.
For engineers reviewing the LT6550CMS#TRPBF datasheet, LT6550CMS#TRPBF pinout, LT6550CMS#TRPBF application, or LT6550CMS#TRPBF equivalent, key selection criteria include fixed-gain architecture eliminating external resistors, 30MHz flatness to 0.25dB, 20ns 3% settling time, input common-mode range including ground, and MSOP-10 flow-thru pinout for compact PCB layout in low-voltage video routing.
Technical Context
The LT6550CMS#TRPBF integrates three identical high-slew-rate amplifiers with internal 450Ω feedback and gain-setting resistors configured for precise ×2 voltage gain. Its input stage employs a bipolar differential pair with back-to-back ESD diodes limiting differential input to ±1.4V, while the complementary drive generator enables rail-to-rail output swing into 75Ω/150Ω loads.
It supports both single-supply (3V–12.6V) and split-supply (±5V) operation, with input voltage range extending from VEE to (VCC – 1.75V), enabling direct interface to unlevel-shifted RGB signals without AC coupling-critical for low-power automotive and portable display applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| –3dB Bandwidth | 110MHz at ±5V supply, RL = 150Ω - ensures full NTSC/PAL/UXGA video bandwidth preservation |
| Slew Rate | 340V/µs measured from 1V to 3V - enables fast transient response for sharp video edges |
| Gain Flatness | ≤0.25dB up to 30MHz - maintains color fidelity and luminance accuracy across baseband video spectrum |
| Settling Time (3%) | 20ns into 150Ω load - meets pixel clock timing budgets for 1080p/60Hz and higher-resolution displays |
| Rail-to-Rail Output | Swings within 400mV of rails at 3.3V/150Ω - maximizes dynamic range for 24-bit RGB signal integrity |
| Input Common-Mode Range | Includes ground (VEE) - eliminates need for DC biasing or level-shifting circuitry on RGB inputs |
| Supply Voltage Range | Single: 3V–12.6V; Split: ±5V - supports flexible power architecture in automotive and industrial video systems |
Pinout & Package
LT6550CMS#TRPBF is housed in a 10-lead plastic MSOP package (3mm × 5mm) with fused thermal pad on Pin 5 (VEE) for enhanced heat dissipation. The flow-thru pinout minimizes trace crosstalk in high-speed RGB routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 (IN1–IN3) | Differential input terminals for channels 1–3 | Accept RGB analog video signals directly; input impedance ≈200–500kΩ supports passive termination |
| 4 (GND) | Analog ground reference | Common return for input bias currents and internal bias network; separate from VEE (Pin 5) |
| 5 (VEE) | Negative supply rail | Fused to lead frame for thermal conduction; must be connected to system ground or negative rail |
| 6, 7, 8 (OUT1–OUT3) | Amplified outputs | Drive 75Ω coaxial cables or 150Ω loads; rail-to-rail swing supports full video voltage range |
| 9 (VCC) | Positive supply rail | Accepts 3V–12.6V single supply or +5V in split-supply mode; PSRR ≥40dB improves noise immunity |
| 10 (N/C) | No-connect terminal | Internally unused; must remain unconnected per datasheet to avoid parasitic coupling |
Key Features
| Feature | Design Value |
|---|---|
| Fixed gain-of-2 architecture | Eliminates six external resistors per device, reducing BOM count, board area, and gain mismatch between RGB channels |
| High output drive capability | 60mA short-circuit current and 150Ω load drive enable direct termination into double-terminated 75Ω video lines |
| Low-voltage operation | Full performance at 3.3V allows integration into power-constrained automotive infotainment and portable displays |
| Thermally enhanced MSOP | Fused Pin 5 (VEE) reduces θJA to 110°C/W with 2500mm² copper, supporting sustained operation at 85°C ambient |
| ESD-protected inputs/outputs | Reverse-biased diodes limit differential input to ±1.4V; safe with ≤10mA fault current - simplifies front-end protection design |
Applications
| Automotive Display Interface | RGB Video Distribution |
|---|---|
Use Scenario: Driving RGB signals from an SoC or GPU to TFT-LCD panels in vehicle instrument clusters and center consoles. IC Role / Device Role / Timing Role: Triple-channel video buffer amplifier with fixed ×2 gain, preserving sync timing and minimizing skew between R/G/B paths. Use Value: Eliminates external gain resistors and level shifters, reducing component count by ≥12 parts per channel while maintaining <0.15dB gain matching across temperature. | Use Scenario: Splitting and amplifying RGB signals to multiple display modules in kiosks or digital signage systems. IC Role / Device Role / Timing Role: High-fidelity distribution amplifier ensuring matched propagation delay (<1ns inter-channel skew) and flat frequency response to 30MHz. Use Value: 110MHz bandwidth and 20ns settling support 1920×1080@60Hz pixel rates; rail-to-rail output drives dual 75Ω terminations without droop. |
| Component Video Conversion | Set-Top Box Video Output |
Use Scenario: Implementing RGB-to-Y/Pb/Pr matrix conversion in consumer AV equipment using two LT6550 devices. IC Role / Device Role / Timing Role: Precision analog computation block performing weighted sum (Y = 0.299R + 0.587G + 0.114B) and difference (Pb, Pr) generation. Use Value: Internal gain resistors ensure consistent scaling; ±3.3V operation yields ±0.35V chroma swing compatible with standard YPbPr interfaces. | Use Scenario: Buffering composite sync and RGB outputs in HD set-top boxes before HDMI or analog video connectors. IC Role / Device Role / Timing Role: Low-jitter, high-slew-rate driver isolating source IC from cable capacitance and connector ESD events. Use Value: 340V/µs slew rate prevents edge rounding on sync pulses; 60mA drive sustains signal integrity over 10m 75Ω coaxial runs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple-channel high-speed video amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT6551CMS#TRPBF | Quad-channel version; GND (Pin 5) instead of VEE; optimized for single-supply only | Requires fourth channel (e.g., SYNC); lacks split-supply flexibility; identical bandwidth/slew rate | Select when needing four independent outputs or strictly single-rail designs - not drop-in compatible due to Pin 5 function change |
| THS3201DR | Single-channel, 1.8GHz bandwidth, 6000V/µs slew; requires external gain resistors; SOIC-8 | Higher bandwidth but no integrated gain; larger footprint; higher power (12.5mA/channel vs 10mA) | Choose for ultra-high-frequency applications (>200MHz) where discrete gain tuning and wider supply range (±15V) are required |
Compared with LT6551CMS#TRPBF, the LT6550CMS#TRPBF offers true split-supply operation and dedicated VEE pin for bipolar video signal handling, while THS3201DR trades integrated simplicity for raw speed and flexibility-making LT6550CMS#TRPBF optimal for cost-sensitive, space-constrained RGB routing where fixed gain and thermal efficiency are prioritized.
Availability
LT6550CMS#TRPBF is available at Aetrix Electronics and suitable for automotive display interfaces, RGB video distribution systems, and set-top box analog outputs requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for LT6550CMS#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, Inc. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies.
The LT6550CMS#TRPBF belongs to Linear's legacy high-speed video amplifier product line, engineered specifically for low-voltage, high-fidelity RGB signal conditioning in automotive, industrial, and consumer display systems.
FAQ
What supply configurations does the LT6550CMS#TRPBF support?
The LT6550CMS#TRPBF supports both single-supply (3V to 12.6V between VCC and VEE) and split-supply (±5V) operation. In single-supply mode, VEE (Pin 5) connects to ground; in split mode, it connects to the negative rail. Input common-mode range extends from VEE to (VCC – 1.75V), enabling direct interface to unshifted RGB sources. The LT6550CMS#TRPBF maintains full 110MHz bandwidth and 340V/µs slew rate across both configurations.
Does the LT6550CMS#TRPBF require external gain-setting resistors?
No. The LT6550CMS#TRPBF integrates precision 450Ω internal feedback and gain resistors to deliver a fixed voltage gain of 2.0 ±0.1V/V across all three channels. This eliminates six external resistors per device, reduces PCB area, avoids gain mismatch between RGB paths, and ensures consistent 0.15dB gain matching over temperature. The LT6550CMS#TRPBF is optimized for applications where gain stability and channel-to-channel uniformity are critical, such as automotive display timing chains.
Can the LT6550CMS#TRPBF drive 75Ω coaxial cables directly?
Yes. The LT6550CMS#TRPBF delivers 60mA short-circuit current and is characterized to drive double-terminated 75Ω coaxial cables (150Ω total load) with full rail-to-rail output swing and 20ns 3% settling time. Its output stage maintains <0.25dB gain flatness to 30MHz and 110MHz –3dB bandwidth into 150Ω, making it suitable for HD video transmission up to 1080p/60Hz. For optimal signal integrity, use controlled-impedance traces and minimize stub lengths when interfacing with the LT6550CMS#TRPBF.
What is the thermal performance of the LT6550CMS#TRPBF in MSOP-10 package?
The LT6550CMS#TRPBF uses an enhanced MSOP-10 package with Pin 5 (VEE) fused to the lead frame, reducing junction-to-ambient thermal resistance (θJA) to 110°C/W when mounted on a 2500mm² PCB with 2oz copper on both sides. This enables reliable operation at 85°C ambient with typical power dissipation of ~363mW (at ±5V, 4-channel load). Thermal performance degrades predictably with reduced copper area-e.g., 130°C/W with 100mm² copper-so proper PCB layout is essential for sustained high-output-drive applications using the LT6550CMS#TRPBF.
How does the LT6550CMS#TRPBF handle input overvoltage conditions?
The LT6550CMS#TRPBF incorporates reverse-biased ESD protection diodes across each amplifier's inputs (±1.4V differential limit) and outputs. If input voltage exceeds the supply rails, current flows through these diodes; damage is avoided if fault current remains ≤10mA. The device also features input current limiting via internal 225Ω series resistors (RIN). These protections allow robust operation in noisy automotive environments, but external series resistors or clamps are recommended for sustained overvoltage events beyond datasheet limits. All specifications for the LT6550CMS#TRPBF assume proper adherence to absolute maximum ratings.
LT6550CMS#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:
- 3
- -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, ±1.5V ~ 6.3V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 10-MSOP
LT6550CMS#TRPBF FAQ
1.How can I place an order for LT6550CMS#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6550CMS#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 LT6550CMS#TRPBF reliable?
The price and inventory of LT6550CMS#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6550CMS#TRPBF is usually 5 days.
3.What payment methods are accepted for LT6550CMS#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6550CMS#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6550CMS#TRPBF?
LT6550CMS#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6550CMS#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 LT6550CMS#TRPBF?
For technical support, including LT6550CMS#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6550CMS#TRPBF requirements.
6.How does Aetrix verify that LT6550CMS#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT6550CMS#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 LT6550CMS#TRPBF meets industry standards.
7.What is the process for return or replacement of LT6550CMS#TRPBF?
All LT6550CMS#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6550CMS#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 LT6550CMS#TRPBF part is unused and in its original packaging.
Return procedure for LT6550CMS#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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