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Analog Devices Inc. LT1395CS5#TRPBF
- Part No.:
- LT1395CS5#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
LT1395CS5#TRPBF.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,072
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Product details
Overview
LT1395CS5#TRPBF from Analog Devices (formerly Linear Technology) is a single-channel, high-speed current feedback amplifier optimized for video and high-frequency signal conditioning. It delivers 400MHz bandwidth at unity gain, 800V/μs slew rate, ±80mA output drive, operates from ±2V to ±6V supplies, and draws only 4.6mA per amplifier - used in RGB video routing, cable drivers, and IF amplification where fast transient response and low distortion are critical.
For engineers reviewing the LT1395CS5#TRPBF datasheet, LT1395CS5#TRPBF pinout, LT1395CS5#TRPBF application, or LT1395CS5#TRPBF equivalent, this page provides verified circuit role, validated TSOT-23-5 package mapping, confirmed 5-pin terminal functions, real-world video loop-through and MUX amplifier use cases, and two technically documented alternative parts with precise functional and application-level differences.
Technical Context
The LT1395CS5#TRPBF uses a current feedback architecture with separate input and output stage slew rate limits - input stage ~600V/μs, output stage up to 800V/μs depending on feedback resistor and supply voltage. Its bandwidth is resistor-dependent: 400MHz at AV = 1 (RF = 374Ω), 350MHz at AV = 2 or –1 (RF = RG = 255Ω).
It features rail-to-rail output swing capability (±3.4V into 150Ω), 0.1dB gain flatness to 100MHz, differential input voltage limit of ±5V, and input bias currents of ±25μA (noninverting) and ±50μA (inverting) at TA = 25°C - enabling stable operation in high-impedance video source interfaces without loading.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth (–3dB) | 400MHz at AV = 1; enables full HD video signal amplification without attenuation |
| Slew Rate | 800V/μs at AV = 2, ±5V, RL = 150Ω; supports <2.5ns propagation delay and <1.3ns rise time |
| Output Current | ±80mA continuous; drives 75Ω coaxial cables and multiple downstream loads directly |
| Supply Range | ±2V to ±6V (4V–12V total); compatible with legacy ±5V and modern low-voltage bipolar rails |
| Input Noise | 4.5nV/√Hz at 1kHz; preserves SNR in baseband video and IF signal chains |
| CMRR | 42–52dB; sufficient for balanced video line driving with moderate common-mode rejection |
| Differential Gain/Phase | 0.02% / 0.04° at NTSC; meets broadcast-grade video fidelity requirements |
Pinout & Package
LT1395CS5#TRPBF is housed in a 5-lead plastic TSOT-23 package (S5), 2.9mm × 1.6mm × 1.1mm, with exposed pad connected to V– for thermal management. Pin 1 is OUT, Pin 2 is V–, Pin 3 is +IN, Pin 4 is –IN, Pin 5 is V+ - standard single-amplifier current feedback topology with no enable or NC pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pin 1) | Amplifier output node | Capable of ±3.4V swing into 150Ω; requires series termination for 75Ω video lines |
| V– (Pin 2) | Negative supply rail connection | Internally tied to exposed thermal pad; must be soldered to PCB ground plane for θJA = 250°C/W |
| +IN (Pin 3) | Noninverting input | High-impedance (0.3–1MΩ), 2.0pF capacitance; accepts DC-coupled video sources |
| –IN (Pin 4) | Inverting input | Current-summing node; requires resistive feedback (e.g., 255Ω) for stability and bandwidth control |
| V+ (Pin 5) | Positive supply rail connection | Accepts up to +6V; supply mismatch >3V degrades offset (2.5mV/V) and bias current (10μA/V) |
Key Features
| Feature | Design Value |
|---|---|
| Current feedback architecture | Enables constant bandwidth across gains and eliminates gain-bandwidth trade-off typical of voltage-feedback op amps |
| 400MHz small-signal bandwidth | Supports full NTSC/PAL video spectrum (0–5.5MHz) with >60dB headroom and minimal group delay |
| 0.1dB gain flatness to 100MHz | Ensures uniform amplitude response across multi-channel RGB or YUV signals without equalization |
| Low 4.5nV/√Hz input noise | Maintains >65dB SNR in 10MHz video bandwidth, critical for analog component video fidelity |
| ±80mA output drive | Drives dual 75Ω outputs or long coax runs without external buffers, reducing BOM count |
Applications
| Video Loop-Through Amplifier | RGB Video MUX Amplifier |
|---|---|
|
Use Scenario: Distribution of composite video or RGB signals from one source to multiple displays while preserving signal integrity. IC Role / Device Role / Timing Role: Unity-gain buffer with high-Z input and low-Z output, placed between source and splitter to prevent cable loading and maintain impedance matching. Use Value: Delivers 0.02% differential gain and 0.04° phase error at NTSC frequencies, meeting SMPTE RP-168 broadcast standards without post-compensation. |
Use Scenario: Selecting and amplifying one of multiple RGB video inputs in graphics switchers or AV matrix systems. IC Role / Device Role / Timing Role: High-speed gain-of-2 noninverting amplifier with fast enable/disable not required (unlike LT1395CS6), used in fixed-path routing. Use Value: 350MHz bandwidth at AV = 2 ensures sub-1ns edge fidelity across all three channels, eliminating color skew in HD video switching. |
| IF Signal Amplifier | Cable Driver for Analog Video |
|
Use Scenario: Amplification of intermediate frequency signals (e.g., 30–70MHz) in RF demodulators or software-defined radio front ends. IC Role / Device Role / Timing Role: Fixed-gain current feedback amplifier operating at AV = –1 or AV = 2, providing wideband gain with minimal group delay variation. Use Value: 350MHz –3dB bandwidth and <10% overshoot ensure accurate pulse envelope reproduction in QAM/OFDM IF stages. |
Use Scenario: Driving 75Ω coaxial cables up to 30m in CCTV, broadcast equipment, or medical imaging systems. IC Role / Device Role / Timing Role: Back-terminated driver with matched output impedance, configured using 75Ω series resistor and 255Ω feedback network. Use Value: ±80mA output current sustains 1Vpp into 75Ω over full temperature range, eliminating need for external emitter followers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADA4817-1ARMZ | Higher 1GHz bandwidth but lower 40mA output drive; 3.6nV/√Hz noise; requires ±3.3V min supply | Better for low-noise, ultra-wideband ADC drivers; insufficient for 75Ω coax drive at full swing | Select when bandwidth >500MHz is mandatory and load ≤50Ω; avoid for video cable driving |
| THS3201DGN | 400MHz bandwidth, 800V/μs slew, but 120mA output; higher 6.5mA supply current; SO-8 only | Superior drive strength for dual-cable or active termination; larger footprint limits space-constrained designs | Prefer for industrial video systems requiring robust 75Ω/50Ω dual-drive; use LT1395CS5#TRPBF where TSOT-23 size is critical |
Compared with ADA4817-1ARMZ and THS3201DGN, the LT1395CS5#TRPBF uniquely balances 400MHz bandwidth, ±80mA drive, 4.6mA quiescent current, and 5-pin TSOT-23 packaging - making it optimal for space-limited, power-sensitive video routing where full 75Ω drive and broadcast-grade linearity are required.
Availability
LT1395CS5#TRPBF is available at Aetrix Electronics and suitable for video loop-through amplifiers, RGB MUX systems, IF signal conditioning, and analog cable drivers requiring stable component supply, consistent parametric performance, and long-term industrial availability.
Supply support for LT1395CS5#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 semiconductors.
The LT1395 family was designed by Linear Technology specifically for high-speed current feedback applications demanding wide bandwidth, fast settling, and video-grade linearity - targeting professional video infrastructure, test equipment, and communications signal paths.
FAQ
What is the maximum capacitive load the LT1395CS5#TRPBF can drive stably?
The LT1395CS5#TRPBF can drive up to 100pF directly with 255Ω feedback at AV = 2 without peaking >5dB. For larger loads (e.g., 500pF), a 5–35Ω series resistor at the output isolates the capacitance while preserving bandwidth when unloaded. This behavior is documented in Figure 13 of the LT1395/LT1396/LT1397 datasheet, where capacitive load vs. feedback resistor curves confirm stable operation up to 2100pF with RF = 3300Ω.
Does the LT1395CS5#TRPBF have an enable/shutdown pin?
No, the LT1395CS5#TRPBF does not include an enable pin. That function is exclusive to the LT1395CS6 variant (6-pin TSOT-23). The LT1395CS5#TRPBF is a permanently enabled single amplifier - its supply current remains at 4.6mA per amplifier under all operating conditions, with no logic-controlled disable mode or high-impedance output state.
Can the LT1395CS5#TRPBF operate from a single 5V supply?
Yes, the LT1395CS5#TRPBF supports single-supply operation from +5V and ground (i.e., V+ = 5V, V– = 0V), as confirmed in the Absolute Maximum Ratings table (total supply voltage up to 12.6V) and Electrical Characteristics (VINH = 4.0V, VINL = 1.0V under VS = 5V, 0V). However, output swing reduces to 0.6–4.2V, limiting dynamic range versus ±5V operation.
What is the thermal resistance (θJA) of the LT1395CS5#TRPBF in TSOT-23 package?
The junction-to-ambient thermal resistance (θJA) for the LT1395CS5#TRPBF in the S5 (TSOT-23-5) package is 250°C/W, as specified in Note 6 of the datasheet. This value assumes minimal PCB copper; adding thermal vias and a solid ground plane beneath the exposed V– pad reduces effective θJA significantly - critical for sustained ±80mA output current at elevated ambient temperatures.
How does the LT1395CS5#TRPBF differ from the LT1395CS6#TRPBF?
The LT1395CS5#TRPBF is a 5-pin TSOT-23 current feedback amplifier with no enable functionality, while the LT1395CS6#TRPBF adds a sixth pin (EN) for CMOS-compatible shutdown - drawing <100μA when disabled and achieving 30ns turn-on/40ns turn-off. Both share identical AC performance (400MHz BW, 800V/μs SR), but only the CS6 variant supports power-gating in portable or spread-spectrum systems.
LT1395CS5#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Tape & Reel (TR)
- 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:
- TSOT-23-5
LT1395CS5#TRPBF FAQ
1.How can I place an order for LT1395CS5#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1395CS5#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 LT1395CS5#TRPBF reliable?
The price and inventory of LT1395CS5#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1395CS5#TRPBF is usually 5 days.
3.What payment methods are accepted for LT1395CS5#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1395CS5#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1395CS5#TRPBF?
LT1395CS5#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1395CS5#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 LT1395CS5#TRPBF?
For technical support, including LT1395CS5#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1395CS5#TRPBF requirements.
6.How does Aetrix verify that LT1395CS5#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT1395CS5#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 LT1395CS5#TRPBF meets industry standards.
7.What is the process for return or replacement of LT1395CS5#TRPBF?
All LT1395CS5#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1395CS5#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 LT1395CS5#TRPBF part is unused and in its original packaging.
Return procedure for LT1395CS5#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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