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Analog Devices Inc. LT1395CS8#PBF
- Part No.:
- LT1395CS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1395CS8#PBF.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:168
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Product details
Overview
LT1395CS8#PBF from Analog Devices (formerly Linear Technology) is a single-channel 400MHz current feedback amplifier in an 8-lead SOIC package, delivering 800V/μs slew rate, ±80mA output current, and 4.6mA supply current per amplifier at ±5V. It operates from ±2V to ±6V supplies and is optimized for video loop-through, RGB/color-difference matrix, and high-speed portable equipment.
For engineers reviewing the LT1395CS8#PBF datasheet, LT1395CS8#PBF pinout, LT1395CS8#PBF application, or LT1395CS8#PBF equivalent, key selection factors include its 400MHz unity-gain bandwidth, 0.1dB gain flatness to 100MHz, low 10mV input offset voltage, high 80mA drive capability, and SO-8 compatibility with standard dual op-amp footprints.
Technical Context
The LT1395CS8#PBF uses a current feedback architecture with separate high-impedance noninverting input and low-impedance inverting input, enabling wide bandwidth independent of closed-loop gain configuration. Its transimpedance stage delivers 40–100kΩ typical transimpedance (ΔVOUT/ΔIIN–) and supports stable operation with resistive feedback networks.
It features no enable/shutdown pin (unlike LT1395CS6), fixed SO-8 pinout with NC pins at 1 and 5, and is characterized over 0°C to 70°C ambient. Thermal resistance θJA is 150°C/W, and it is fabricated on Linear's proprietary complementary bipolar process for precision high-speed performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth (AV = 1) | 400MHz - enables full HD video signal amplification without phase distortion up to 100MHz (0.1dB flatness). |
| Slew Rate | 800V/μs - supports fast transient response for 10ns rise time in AV = 2 configurations with 100Ω load. |
| Output Current | ±80mA - drives 75Ω coaxial cables directly and sustains 150Ω loads at ±3.4V swing. |
| Supply Range | ±2V to ±6V (4V–12V total) - compatible with legacy ±5V systems and low-voltage portable rails. |
| Input Offset Voltage | ±10mV max - ensures minimal DC error in precision video gain stages and RGB matrix circuits. |
| Supply Current | 4.6mA per amplifier - enables multi-amplifier designs within tight power budgets (e.g., quad-channel video boards). |
| Input Noise Density | 4.5nV/√Hz at 1kHz - preserves SNR in baseband video and IF signal paths without added noise floor degradation. |
Pinout & Package
LT1395CS8#PBF is housed in an 8-lead plastic SOIC (S8) package with 1.27mm pitch, 5.0mm × 4.0mm body, and 1.75mm max height. Pin 1 and Pin 5 are No Connect (NC); functional terminals follow standard single-amplifier layout with dedicated V+, V–, +IN, –IN, and OUT.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (NC) | No Connection | Unused pad; must remain unconnected to avoid parasitic coupling or latch-up risk. |
| Pin 2 (–IN) | Inverting Input | Low-impedance node requiring resistive feedback (e.g., 255Ω) for stability; sensitive to stray capacitance. |
| Pin 3 (+IN) | Noninverting Input | High-impedance node (0.3–1MΩ); accepts high-Z sources like terminated coax or DAC outputs. |
| Pin 4 (V–) | Negative Supply Rail | Connects to –5V (or GND in single-supply); undershoot tolerance ≤ –0.3V avoids ESD diode conduction. |
| Pin 5 (NC) | No Connection | Electrically isolated; PCB trace must be removed or left floating-no tie to ground or supply. |
| Pin 6 (OUT) | Amplifier Output | Capable of ±80mA sourcing/sinking; requires series resistor (5–35Ω) when driving >100pF capacitive loads. |
| Pin 7 (V+) | Positive Supply Rail | Accepts +5V (or +12V max); PSRR ≥ 56dB ensures immunity to supply ripple in mixed-signal systems. |
| Pin 8 (NC) | No Connection | Not bonded internally; must not be soldered or routed to prevent mechanical stress or contamination. |
Key Features
| Feature | Design Value |
|---|---|
| 400MHz unity-gain bandwidth | Enables direct amplification of NTSC/PAL composite video and 720p RGB signals without external equalization. |
| 0.1dB gain flatness to 100MHz | Preserves chroma/luma timing alignment in broadcast-grade video distribution and loop-through applications. |
| 800V/μs slew rate | Supports <2.5ns propagation delay and <10% overshoot in AV = 2, 100Ω-load configurations for clean square-wave fidelity. |
| ±80mA output drive | Drives dual 75Ω back-terminated video lines simultaneously (e.g., RGB-to-YUV matrix outputs) without external buffers. |
| Low 4.6mA quiescent current | Permits integration of multiple LT1395CS8#PBF units on dense video interface cards while staying within 1W thermal envelope. |
Applications
| Video Loop-Through Amplifier | RGB-to-Color-Difference Matrix |
|---|---|
|
Use Scenario: Distribution of analog video signals from camera or graphics source to multiple monitors or recording devices with minimal latency and distortion. IC Role / Device Role / Timing Role: Single-channel current feedback amplifier configured as unity-gain buffer with high input impedance and low output impedance. Use Value: Maintains 0.02% differential gain and 0.04° differential phase error across NTSC/PAL spectrum, preserving color fidelity without external trimming. |
Use Scenario: Conversion of RGB component video into Y, R–Y, and B–Y color-difference signals for broadcast encoding or compression pipelines. IC Role / Device Role / Timing Role: Precision gain block in buffered matrix network; handles 75Ω-terminated inputs and drives 75Ω transmission lines. Use Value: Delivers 400MHz bandwidth and 100MHz 0.1dB flatness to preserve edge integrity in high-resolution video transitions. |
| High-Speed MUX Amplifier | IF Signal Amplifier |
|
Use Scenario: Signal conditioning after analog multiplexer in test equipment or medical imaging front-ends where channel switching induces transient glitches. IC Role / Device Role / Timing Role: Post-MUX driver with fast settling (<25ns to 0.1%) and low 1.3ns rise time to suppress switch-induced artifacts. Use Value: 25ns 0.1% settling time and 10% overshoot ensure accurate pulse amplitude measurement in automated test systems. |
Use Scenario: Intermediate frequency amplification in software-defined radio receivers operating at 10–100MHz with stringent linearity requirements. IC Role / Device Role / Timing Role: Fixed-gain IF amplifier with high PSRR (≥56dB) and low harmonic distortion (HD2/HD3 < –80dBc at 10MHz). Use Value: 4.5nV/√Hz input noise and –80dBc 2nd/3rd harmonics maintain dynamic range in narrowband SDR front-ends. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6702MA/NOPB | Higher 1.8GHz GBW but higher 12.5mA supply current; SO-8 package; no guaranteed 0.1dB flatness spec. | Preferred for >500MHz RF sampling or ADC driver roles; less optimal for video due to higher noise (6.5nV/√Hz) and no differential phase spec. | Select LMH6702MA/NOPB only when bandwidth >1GHz is required and power budget allows +8mA per channel. |
| ADA4817-1ARZ-R7 | Lower 1GHz GBW, lower 16.5mA supply current, FET-input (1pA bias), SO-8; specified for 0.1dB flatness to 200MHz. | Better for high-impedance sensor interfaces or low-distortion audio; lacks ±80mA drive and video-specific dG/dP characterization. | Choose ADA4817-1ARZ-R7 for ultra-low bias current or wideband low-noise applications-not for 75Ω video drive. |
Compared with LMH6702MA/NOPB and ADA4817-1ARZ-R7, the LT1395CS8#PBF uniquely balances 400MHz bandwidth, 80mA drive, 0.02%/0.04° video linearity, and 4.6mA quiescent current in SO-8-making it the only option qualified for broadcast video loop-through and RGB matrix functions without derating.
Availability
LT1395CS8#PBF is available at Aetrix Electronics and suitable for video distribution systems, broadcast equipment design, and high-speed analog signal routing requiring stable component supply, long-term lifecycle support, and RoHS-compliant lead-free packaging.
Supply support for LT1395CS8#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 LT1395 family was designed by Linear Technology specifically for high-fidelity video signal conditioning, offering current feedback architecture optimized for ±5V operation, 75Ω system interfacing, and broadcast-grade differential gain/phase performance.
FAQ
What is the maximum capacitive load the LT1395CS8#PBF can drive without oscillation?
The LT1395CS8#PBF can drive up to 100pF directly with 255Ω feedback resistors at AV = 2. For larger loads, a 5–35Ω series resistor at the output isolates capacitance and maintains stability-verified in Figure 13 of the datasheet. Driving >100pF without isolation risks peaking >5dB and overshoot >2%, degrading video signal integrity.
Does the LT1395CS8#PBF have an enable/disable pin like the LT1395CS6?
No, the LT1395CS8#PBF does not include an enable pin. Unlike the LT1395CS6 (TSOT-23-6), the LT1395CS8#PBF is a fixed-function SO-8 device with no shutdown capability. Its supply current remains at 4.6mA continuously when powered; power cycling is required for current reduction.
Can the LT1395CS8#PBF operate from a single 5V supply?
Yes, the LT1395CS8#PBF supports single-supply operation from 4V to 12V total (e.g., 5V between V+ and V–). When using 5V (V+ = 5V, V– = 0V), input common-mode range is 0V to 4.0V and output swing is 0.8V to 4.2V into high-Z loads-verified in Electrical Characteristics Table, VINL/VINH and VOUTL/VOUTH rows.
What is the thermal resistance (θJA) of the LT1395CS8#PBF in SO-8 package?
The LT1395CS8#PBF has a junction-to-ambient thermal resistance (θJA) of 150°C/W under standard JEDEC 2-layer board conditions. This value assumes no copper pour on inner layers; adding thermal vias and 1-in² copper area reduces θJA to ~90°C/W, critical for sustained 80mA output current operation.
Is the LT1395CS8#PBF pin-compatible with standard dual op-amp SO-8 footprints?
No-the LT1395CS8#PBF uses a nonstandard SO-8 pinout with NC on Pins 1 and 5. Standard dual op-amps (e.g., LT1363) use Pins 1/5 for outputs or shutdown. Direct replacement requires PCB redesign; however, its footprint matches other single SO-8 amplifiers like the LT1361, enabling drop-in use in single-amplifier layouts.
LT1395CS8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Current Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 800V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 400 MHz
- Current - Input Bias:
- 10 µA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 4.6mA
- Current - Output / Channel:
- 80 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LT1395CS8#PBF FAQ
1.How can I place an order for LT1395CS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1395CS8#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 LT1395CS8#PBF reliable?
The price and inventory of LT1395CS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1395CS8#PBF is usually 5 days.
3.What payment methods are accepted for LT1395CS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1395CS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1395CS8#PBF?
LT1395CS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1395CS8#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 LT1395CS8#PBF?
For technical support, including LT1395CS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1395CS8#PBF requirements.
6.How does Aetrix verify that LT1395CS8#PBF is sourced from the original manufacturer or authorized distributors?
All LT1395CS8#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 LT1395CS8#PBF meets industry standards.
7.What is the process for return or replacement of LT1395CS8#PBF?
All LT1395CS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1395CS8#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 LT1395CS8#PBF part is unused and in its original packaging.
Return procedure for LT1395CS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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