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Analog Devices Inc. LT1396CS8#PBF
- Part No.:
- LT1396CS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1396CS8#PBF.pdf
- Description:
- IC OPAMP CFA 2 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:653
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Product details
Overview
LT1396CS8#PBF from Analog Devices (formerly Linear Technology) is a dual 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-to-YUV matrix, and high-speed MUX amplification.
For engineers reviewing the LT1396CS8#PBF datasheet, LT1396CS8#PBF pinout, LT1396CS8#PBF application, or LT1396CS8#PBF equivalent, key selection criteria include its dual-channel current-feedback architecture, ±5V-optimized bandwidth, low distortion (<0.02% differential gain), and SO-8 compatibility with standard dual op-amp footprints.
Technical Context
The LT1396CS8#PBF implements a current feedback topology with separate high-impedance noninverting input and low-impedance inverting input, enabling stable operation with fixed 255Ω feedback resistors across gains of 1, 2, and –1. Its transimpedance gain stage drives outputs directly without internal compensation networks.
Bandwidth is resistor-dependent: 400MHz at AV = 1 (RF = 374Ω), 350MHz at AV = 2 or –1 (RF = RG = 255Ω), with 0.1dB flatness maintained to 100MHz. Input stage limits slew rate below gain 2; output stage dominates above gain 2, achieving 800V/μs at ±5V with 255Ω feedback.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| –3dB Bandwidth | 400MHz at AV = 1, ±5V - supports full HD video signal amplification without attenuation |
| Slew Rate | 800V/μs at AV = 2, ±5V - enables clean 100MHz square wave reproduction with <10% overshoot |
| Output Current | ±80mA - drives 75Ω coaxial cables, multiple loads, or back-terminated video lines directly |
| Supply Current | 4.6mA per amplifier at ±5V - enables dual-channel high-speed operation within 10mW/channel power budget |
| Differential Gain/Phase | 0.02%/0.04° at 4.43MHz - meets NTSC/PAL broadcast video fidelity requirements |
| Input Voltage Range | ±3.5V at ±5V supplies - accommodates large-swing video signals without clipping |
| Output Swing | ±3.4V into 150Ω - delivers >2VP-P video signal headroom with 5V rails |
Pinout & Package
LT1396CS8#PBF uses an 8-lead plastic SOIC (S8) package with standard dual op-amp pinout and exposed thermal pad not present (unlike DFN variants). Pin 1 is OUT A; Pin 2 is –IN A; Pin 3 is +IN A; Pin 4 is V–; Pin 5 is +IN B; Pin 6 is –IN B; Pin 7 is OUT B; Pin 8 is V+.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT A (Pin 1) | A-channel output | Low-impedance current-source output capable of ±80mA drive into 75Ω or 150Ω loads |
| –IN A (Pin 2) | Inverting input of A channel | Low-impedance node requiring precise 255Ω feedback resistor for stability and bandwidth control |
| +IN A (Pin 3) | Noninverting input of A channel | High-impedance voltage-sensing node; accepts video, RGB, or IF signals up to ±3.5V |
| V– (Pin 4) | Negative supply rail | Reference for both amplifiers; must be decoupled locally with 0.1μF ceramic capacitor |
| +IN B (Pin 5) | Noninverting input of B channel | Independent high-Z input for second signal path-enables dual-loop-through or RGB/YUV parallel processing |
| –IN B (Pin 6) | Inverting input of B channel | Matched low-Z node to Pin 2; requires identical feedback network for channel matching |
| OUT B (Pin 7) | B-channel output | Fully independent output with same drive strength and transient response as OUT A |
| V+ (Pin 8) | Positive supply rail | Power input for both amplifiers; total supply range ±2V to ±6V; 150°C/W θJA thermal resistance |
Key Features
| Feature | Design Value |
|---|---|
| Current feedback architecture | Enables fixed-gain bandwidth scaling via external resistors-no internal compensation required |
| 400MHz unity-gain bandwidth | Supports 1080p60 video amplification with margin; exceeds SMPTE 259M timing jitter requirements |
| 800V/μs slew rate | Preserves edge integrity in fast-switching video multiplexers and spread-spectrum clock buffers |
| ±80mA output drive | Eliminates need for external buffer stages when driving dual 75Ω coaxial outputs or active termination |
| 0.02% differential gain error | Meets broadcast-grade color fidelity for professional video equipment and medical imaging systems |
Applications
| Video Loop-Through Amplifier | RGB-to-YUV Color Matrix |
|---|---|
Use Scenario: Distribution of composite video or component analog video signals to multiple monitors or recording devices while preserving signal integrity. IC Role / Device Role / Timing Role: Dual-channel current feedback amplifier configured as unity-gain buffer with 75Ω input/output impedance matching. Use Value: Maintains 0.1dB gain flatness to 100MHz and <0.02% differential gain error-critical for broadcast-quality SD/HD video pass-through. | Use Scenario: Conversion of RGB camera sensor outputs to YUV format for compression or display processing in broadcast encoders and medical endoscopes. IC Role / Device Role / Timing Role: Four-channel signal conditioning using two LT1396CS8#PBF devices (A/B channels) to implement weighted summing and inversion per ITU-R BT.601. Use Value: Achieves <0.04° differential phase error at 4.43MHz-ensures accurate color separation without hue shift in real-time video pipelines. |
| High-Speed MUX Amplifier | IF Signal Amplifier |
Use Scenario: Multiplexing and amplifying multiple high-frequency analog signals (e.g., radar IF, spectrum analyzer inputs) with minimal crosstalk and settling delay. IC Role / Device Role / Timing Role: Dual-channel amplifier used in parallel paths with matched feedback networks to maintain channel-to-channel skew <2.5ns. Use Value: 25ns 0.1% settling time and 2.5ns propagation delay enable sub-100ns switching cycles in automated test equipment and software-defined radio front ends. | Use Scenario: Amplification of intermediate frequency signals (e.g., 70MHz, 140MHz) in communications receivers and satellite demodulators where phase linearity and group delay flatness are critical. IC Role / Device Role / Timing Role: Dual-channel current feedback amplifier operating at AV = 2 with 255Ω feedback to deliver 350MHz bandwidth and <10ps group delay variation across 100MHz span. Use Value: 6pA/√Hz inverting input noise current and 4.5nV/√Hz input voltage noise preserve SNR in narrowband IF chains with 20dB+ gain stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-speed current feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS3202D | Higher 1.8GHz GBW but 12mA supply current per channel; requires external compensation; no guaranteed 0.02% DG spec | Used in RF sampling ADC drivers where bandwidth >1GHz is mandatory; less suitable for broadcast video due to higher distortion | Select THS3202D only when >1GHz small-signal bandwidth is required and power budget allows 2× current draw |
| ADA4870ARZ | Single-channel, 1000V/μs slew, ±500mA output, but 12.5mA supply current; SO-8 package unavailable-only available in SO-16 | Targeted at high-current pulse amplification (e.g., laser diode drivers); lacks dual-channel integration for video matrix use | Choose ADA4870ARZ only for single-ended, high-current, high-slew applications where dual-channel functionality is unnecessary |
Compared with THS3202D and ADA4870ARZ, the LT1396CS8#PBF offers optimal balance of dual-channel integration, 400MHz bandwidth, ultra-low video distortion, and SO-8 footprint-making it uniquely suited for space-constrained broadcast video and instrumentation signal routing.
Availability
LT1396CS8#PBF is available at Aetrix Electronics and suitable for video loop-through, RGB-to-YUV conversion, and high-speed MUX amplifier applications requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial and broadcast OEM programs.
Supply support for LT1396CS8#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 LT1396 forms part of Linear Technology's legacy high-speed amplifier family, designed specifically for demanding video, instrumentation, and communications applications requiring wide bandwidth, low distortion, and robust drive capability.
FAQ
What is the maximum capacitive load the LT1396CS8#PBF can drive stably?
The LT1396CS8#PBF can drive up to 100pF capacitively with 255Ω feedback resistors at AV = 2 without peaking >5dB. For larger loads, adding a 5Ω–35Ω series resistor at the output isolates the capacitance while preserving bandwidth when unloaded. The device's output impedance drops to <1Ω above 10MHz, enabling direct 75Ω coaxial cable driving.
Does the LT1396CS8#PBF support single-supply operation?
Yes, the LT1396CS8#PBF operates from a single 4V to 12V supply (e.g., +12V and GND), though performance is optimized for ±5V. Input common-mode range extends to within 1.0V of either rail, and output swing reaches within 0.8V of each rail into 150Ω. For true single-supply video applications, level-shifting circuitry may be needed to center the signal.
How does the LT1396CS8#PBF differ from the LT1395 and LT1397 in the same family?
The LT1396CS8#PBF is the dual-channel variant-distinct from the single-channel LT1395 and quad-channel LT1397. All share identical electrical specs (400MHz BW, 800V/μs SR, ±80mA IOUT), but differ in channel count, pinout, and package options. LT1396CS8#PBF uses SO-8 with interleaved inputs/outputs; LT1395CS8#PBF is single-channel in same SO-8; LT1397 is quad in SO-14 or DFN-14.
Is the LT1396CS8#PBF pin-compatible with standard dual op-amps like the LMH6629?
No-LT1396CS8#PBF uses a nonstandard SO-8 pinout optimized for current feedback: Pins 1/7 are outputs, Pins 2/6 are inverting inputs, Pins 3/5 are noninverting inputs, and Pins 4/8 are supplies. LMH6629 follows voltage-feedback dual op-amp pinout (Pins 1/7 = outputs, Pins 2/6 = inverting inputs, Pins 3/5 = noninverting inputs, Pins 4/8 = supplies), but LT1396CS8#PBF places +IN B on Pin 5 instead of Pin 3, making direct replacement impossible without PCB redesign.
What thermal considerations apply to the LT1396CS8#PBF in continuous operation?
With θJA = 150°C/W, the LT1396CS8#PBF dissipates ~18.4mW per amplifier (4.6mA × 10V), totaling ~37mW. At TA = 70°C, junction temperature reaches ~75.5°C-well below the 150°C absolute max. No heatsink is required, but 1cm² copper pour under the SO-8 body reduces θJA by ~20°C/W and improves long-term reliability in enclosed enclosures.
LT1396CS8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Current Feedback
- Number of Circuits:
- 2
- 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 (x2 Channels)
- 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
LT1396CS8#PBF FAQ
1.How can I place an order for LT1396CS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1396CS8#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 LT1396CS8#PBF reliable?
The price and inventory of LT1396CS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1396CS8#PBF is usually 5 days.
3.What payment methods are accepted for LT1396CS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1396CS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1396CS8#PBF?
LT1396CS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1396CS8#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 LT1396CS8#PBF?
For technical support, including LT1396CS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1396CS8#PBF requirements.
6.How does Aetrix verify that LT1396CS8#PBF is sourced from the original manufacturer or authorized distributors?
All LT1396CS8#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 LT1396CS8#PBF meets industry standards.
7.What is the process for return or replacement of LT1396CS8#PBF?
All LT1396CS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1396CS8#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 LT1396CS8#PBF part is unused and in its original packaging.
Return procedure for LT1396CS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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