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Analog Devices Inc. LT1399HVCS#PBF
- Part No.:
- LT1399HVCS#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1399HVCS#PBF.pdf
- Description:
- IC OPAMP CFA 3 CIRCUIT 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:215
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Product details
Overview
LT1399HVCS#PBF from Analog Devices (formerly Linear Technology) is a triple 300MHz current feedback amplifier with independent shutdown pins per channel, operating on ±2V to ±7.5V supplies, delivering 80mA output current, 800V/µs slew rate, and 0.1dB gain flatness to 150MHz - used in RGB cable drivers, LCD display interfaces, and high-speed video MUX systems.
For engineers reviewing the LT1399HVCS#PBF datasheet, LT1399HVCS#PBF pinout, LT1399HVCS#PBF application, or LT1399HVCS#PBF equivalent, key selection criteria include ±7.5V supply capability, 30ns turn-on/40ns turn-off timing, high-impedance shutdown mode (0µA per channel), 16-pin narrow SO package, and verified performance in composite video and LCD driver circuits.
Technical Context
The LT1399HVCS#PBF implements a current feedback architecture with three independent amplifiers, each featuring separate enable (EN) inputs that drive outputs to high-impedance state with zero supply current draw when disabled. Its bandwidth remains stable across gains of 1, 2, and –1 due to optimized internal transimpedance stage design.
Each channel supports rail-to-rail output swing up to ±5.8V into 150Ω at ±7.5V supplies, maintains 42–52dB CMRR over ±6V common-mode range, and achieves 2.5ns propagation delay with <10% overshoot - enabling precise timing control in spread-spectrum and portable video signal routing applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth | 300MHz –3dB small-signal bandwidth at AV = 1, 2, –1 with ±7.5V supplies; enables full HD video signal amplification without phase distortion. |
| Slew Rate | 800V/µs – ensures faithful reproduction of fast video edges (e.g., 10MHz square waves) into 150Ω loads without slewing-induced distortion. |
| Supply Range | ±2V to ±7.5V (15V total) – supports higher-voltage LCD panel drivers and legacy ±5V/±7.5V video infrastructure without level-shifting. |
| Output Current | ±80mA – drives 75Ω coaxial cables, 150Ω back-terminated video lines, and capacitive LCD column loads directly. |
| Turn-On/Off Time | 30ns / 40ns – enables sub-32ns channel switching in 3-input video MUX designs with minimal glitching between RGB sources. |
| Gain Flatness | 0.1dB to 150MHz – preserves color fidelity and luminance accuracy across NTSC/PAL baseband video spectrum. |
| Shutdown Current | 0µA per amplifier – eliminates quiescent power in inactive channels for battery-powered portable equipment. |
Pinout & Package
LT1399HVCS#PBF is housed in a 16-pin narrow SO (Small Outline) plastic package (0.150" wide), with exposed pad not present and GND pins (3, 6) unconnected internally - requiring external grounding for optimal channel isolation and crosstalk suppression.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| –IN R (1) | Inverting input, R-channel amplifier | Feedback node for current feedback topology; requires low-stray-capacitance PCB layout to avoid peaking. |
| +IN R (2) | Noninverting input, R-channel amplifier | High-impedance video signal entry point; accepts ±6.5V input range at ±7.5V supplies. |
| GND (3) | Ground reference (not internally connected) | Must be externally tied to system ground to minimize inter-channel crosstalk and improve PSRR. |
| –IN G (4) | Inverting input, G-channel amplifier | Independent feedback path; shares same layout constraints as Pin 1 for stability. |
| +IN G (5) | Noninverting input, G-channel amplifier | Accepts green video component; supports same voltage range and termination as Pin 2. |
| GND (6) | Ground reference (not internally connected) | Second dedicated ground tie point; improves isolation between R and G channels. |
| +IN B (7) | Noninverting input, B-channel amplifier | Blue video signal input; configured identically to Pins 2 and 5 for balanced RGB processing. |
| –IN B (8) | Inverting input, B-channel amplifier | Feedback node for blue channel; layout symmetry critical for color channel matching. |
| EN B (9) | Enable control, B-channel amplifier | Logic-low active; pulls to V– to guarantee full disable; draws ≤110µA when enabled. |
| OUT B (10) | Output, B-channel amplifier | Capable of ±5.8V swing into 150Ω; supports direct 75Ω back-termination via series resistor. |
| V– (11) | Negative supply rail | Accepts –2V to –7.5V; mismatch >3V degrades offset voltage by ~600µV/V. |
| OUT G (12) | Output, G-channel amplifier | Electrically identical to OUT B; enables simultaneous RGB cable driving with matched timing. |
| EN G (13) | Enable control, G-channel amplifier | Independent logic control; allows selective channel activation without affecting R/B operation. |
| V+ (14) | Positive supply rail | Accepts +2V to +7.5V; EN pin must be ≥3V below V+ for stable zero-current shutdown. |
| OUT R (15) | Output, R-channel amplifier | Delivers red video signal with same settling time (25ns to 0.1%) and drive strength as other channels. |
| EN R (16) | Enable control, R-channel amplifier | Enables/disables red channel independently; supports dynamic RGB source switching in MUX applications. |
Key Features
| Feature | Design Value |
|---|---|
| Triple independent current feedback amplifiers | Enables simultaneous RGB signal conditioning in single-package footprint, reducing board area vs. discrete op-amp solutions. |
| 300MHz bandwidth at ±7.5V supplies | Maintains full video bandwidth for UXGA (1600×1200) and dual-link DVI signals without external equalization. |
| 0.1dB gain flatness to 150MHz | Preserves differential gain/phase (0.13%/0.10°) required for broadcast-grade video compliance. |
| 30ns turn-on / 40ns turn-off | Supports <32ns RGB channel switching in video MUX designs with no visible cross-talk or ghosting. |
| ±7.5V supply operation | Drives modern LCD panels requiring >10V swing without external charge pumps or boost converters. |
| Zero-current shutdown per channel | Reduces system standby power in portable devices; eliminates need for external load switches or power gating. |
Applications
| RGB Video Cable Driver | LCD Panel Driver |
|---|---|
Use Scenario: Driving three 75Ω coaxial cables carrying RGB analog video signals from graphics processor to monitor input. IC Role / Device Role / Timing Role: Triple current feedback amplifier providing gain-of-1, back-terminated outputs with matched propagation delay (2.5ns) and <10% overshoot. Use Value: Eliminates need for three separate high-speed op-amps; maintains 0.13% differential gain and 0.10° differential phase across NTSC/PAL bandwidth. | Use Scenario: Driving XGA/UXGA LCD column lines requiring ±6V output swing and fast settling into 330pF capacitive loads. IC Role / Device Role / Timing Role: High-voltage buffer amplifier delivering ±5.8V into 150Ω with 30ns 0.1% settling time at 6V step. Use Value: Replaces discrete MOSFET-based drivers; achieves full-scale settling without external compensation or boost circuitry. |
| 3-Input Video MUX | Spread Spectrum Portable Equipment |
Use Scenario: Selecting between three video sources (e.g., HDMI, VGA, camera) using logic-controlled enable pins for glitch-free switching. IC Role / Device Role / Timing Role: Triple amplifier with independent EN pins enabling sub-32ns channel transition while maintaining high-Z output during switch. Use Value: Achieves seamless RGB source switching with no visible artifacts; eliminates need for external analog switches or relays. | Use Scenario: Amplifying clock-modulated video signals in battery-powered handheld displays to reduce EMI emissions. IC Role / Device Role / Timing Role: Fast-turning amplifier supporting rapid enable/disable cycles synchronized to spread-spectrum clock edges. Use Value: Reduces average supply current by disabling unused channels; maintains signal integrity during dynamic frequency hopping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple high-speed amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1399CS#PBF | Lower max supply: ±6V (vs. ±7.5V); identical pinout, bandwidth, and enable timing. | Not suitable for ±7.5V LCD panel drivers; limited to ±5V video infrastructure. | Select LT1399HVCS#PBF when >±6V output swing or 7.5V rail compatibility is required. |
| ADA4870ARZ | Single-channel, 1000V/µs slew rate, ±15V capable; different pinout, no integrated shutdown. | Requires three separate packages and external enable logic; higher power consumption. | Choose only if >±7.5V swing or >800V/µs slew is mandatory and board space is not constrained. |
Compared with LT1399CS#PBF and ADA4870ARZ, LT1399HVCS#PBF uniquely combines triple-channel integration, ±7.5V operation, per-channel shutdown, and 300MHz bandwidth in a single 16-pin SO package - optimizing for compact, low-power, high-voltage RGB video systems.
Availability
LT1399HVCS#PBF is available at Aetrix Electronics and suitable for RGB video cable drivers, LCD panel interfaces, and 3-input video MUX systems requiring stable component supply, long-term industrial lifecycle support, and guaranteed parametric performance across –40°C to 85°C.
Supply support for LT1399HVCS#PBF 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 semiconductors.
The LT1399HV product line was designed specifically for high-speed video signal routing, RGB buffering, and LCD column driving applications demanding wide supply range, fast enable/disable, and precision gain flatness.
FAQ
What is the maximum supply voltage rating for LT1399HVCS#PBF?
The LT1399HVCS#PBF has an absolute maximum total supply voltage of 15.5V, supporting operation from ±2V (4V) up to ±7.5V (15V). This extended range enables direct interfacing with high-voltage LCD panels and legacy ±7.5V video equipment without external level-shifting circuitry. Exceeding ±7.5V risks permanent damage per Absolute Maximum Ratings.
Does LT1399HVCS#PBF support true high-impedance shutdown on all three channels?
Yes, LT1399HVCS#PBF provides independent high-impedance shutdown for each of its three amplifiers via dedicated EN pins (Pins 9, 13, 16). When an EN pin is driven high (≥V+ – 3V), the corresponding amplifier draws 0µA supply current and its output enters high-impedance state - confirmed in Electrical Characteristics tables and functional descriptions for LT1399HVCS#PBF.
Can LT1399HVCS#PBF drive 75Ω coaxial cables directly?
Yes, LT1399HVCS#PBF can drive 75Ω coaxial cables directly using back-termination configurations. Typical application circuits use 324Ω feedback and gain resistors with 75Ω series output resistors (e.g., 16.9Ω) to achieve proper impedance matching and minimal reflections - validated in Figures F04 and F05 of the LT1399HV datasheet for LT1399HVCS#PBF.
What is the small-signal rise time of LT1399HVCS#PBF at AV = 2?
The small-signal rise time (tr) of LT1399HVCS#PBF is 1.3ns under conditions of AV = 2, RF = RG = 324Ω, RL = 100Ω, and ±5V supplies - as specified in the Electrical Characteristics table on page 3 of the datasheet. This value scales predictably with supply voltage and load, supporting sub-2ns edge fidelity in RGB video paths.
Is LT1399HVCS#PBF pin-compatible with LT1399CS#PBF?
Yes, LT1399HVCS#PBF is pin-for-pin compatible with LT1399CS#PBF in the 16-pin narrow SO package. Both share identical pin functions, layout requirements, and footprint - differing only in maximum supply voltage rating (±7.5V vs. ±6V) and guaranteed operating range. This allows drop-in replacement where higher voltage headroom is needed.
LT1399HVCS#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Current Feedback
- Number of Circuits:
- 3
- Output Type:
- -
- Slew Rate:
- 800V/µs
- Gain Bandwidth Product:
- 300 MHz
- -3db Bandwidth:
- 300 MHz
- Current - Input Bias:
- 10 µA
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 4.6mA (x3 Channels)
- Current - Output / Channel:
- 80 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 15 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
LT1399HVCS#PBF FAQ
1.How can I place an order for LT1399HVCS#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1399HVCS#PBF 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 LT1399HVCS#PBF reliable?
The price and inventory of LT1399HVCS#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1399HVCS#PBF is usually 5 days.
3.What payment methods are accepted for LT1399HVCS#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1399HVCS#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1399HVCS#PBF?
LT1399HVCS#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1399HVCS#PBF 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 LT1399HVCS#PBF?
For technical support, including LT1399HVCS#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1399HVCS#PBF requirements.
6.How does Aetrix verify that LT1399HVCS#PBF is sourced from the original manufacturer or authorized distributors?
All LT1399HVCS#PBF 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 LT1399HVCS#PBF meets industry standards.
7.What is the process for return or replacement of LT1399HVCS#PBF?
All LT1399HVCS#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1399HVCS#PBF, 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 LT1399HVCS#PBF part is unused and in its original packaging.
Return procedure for LT1399HVCS#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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