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Texas Instruments BUF602IDBVR
- Part No.:
- BUF602IDBVR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
BUF602IDBVR.pdf
- Description:
- IC BUFFER 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,699
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Product details
Overview
BUF602IDBVR from Texas Instruments is a high-speed, closed-loop buffer IC designed for AC-coupled, single-supply signal conditioning in demanding analog signal paths. It delivers 1000MHz bandwidth (±5V), 8000V/µs slew rate, ±60mA continuous output current, and integrated mid-supply reference buffering - enabling low-component-count video, clock, and instrumentation interfaces.
For engineers reviewing the BUF602IDBVR datasheet, BUF602IDBVR pinout, BUF602IDBVR application, or BUF602IDBVR equivalent, this page provides verified technical context, real-world design meaning of key specs, SOT23-5 package details, application-specific implementation guidance, and validated alternative options for high-frequency buffer selection.
Technical Context
The BUF602IDBVR implements a unity-gain-stable, closed-loop architecture with internal feedback resistors, eliminating external gain-setting components. Its input stage features high-impedance (1.0MΩ || 2.1pF) differential topology optimized for minimal loading on source circuits.
It integrates a dedicated mid-supply reference buffer (2.5V at +5V supply, 1.65V at +3.3V) with 200Ω output impedance and ±800µA sourcing/sinking capability - enabling self-biased AC-coupled operation without external voltage dividers or op-amps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth | 1000MHz at ±5V (VO = 500mVPP); enables full HD/3G-SDI video and >500MHz clock distribution without gain peaking. |
| Slew Rate | 8000V/µs (±5V); supports clean 1V-step transitions in <350ps - critical for fast pulse integrity in test equipment. |
| Output Current | ±60mA continuous; drives 50Ω transmission lines directly with ≤1V headroom, reducing need for external drivers. |
| Mid-Supply Reference | 2.5V ±0.1V (at +5V supply); provides stable bias for AC-coupled inputs without external resistors or regulators. |
| Closed-Loop ZOUT | <2Ω to 20MHz; ensures flat frequency response into capacitive loads up to 100pF - vital for PCB trace routing. |
| Quiescent Current | 5.8mA at ±5V; enables high-speed buffering in power-constrained portable instrumentation and embedded systems. |
| Supply Range | +2.8V to +12.6V single supply or ±1.4V to ±6.3V dual supply; supports legacy 5V, modern 3.3V, and wide-input industrial rails. |
Pinout & Package
SOT23-5 surface-mount package (DBV), 2.9mm × 1.6mm footprint, 0.95mm height, thermal resistance θJA = 150°C/W - suitable for space-constrained RF and video modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Buffer Input | High-impedance (1.0MΩ || 2.1pF) differential input; accepts AC-coupled signals referenced to internal VREF. |
| 2 (−VCC) | Negative Supply Rail | Required only in dual-supply mode; tied to GND in single-supply configurations. |
| 3 (VREF) | Mid-Supply Reference Output | Low-impedance (200Ω) buffered midpoint voltage; used to bias input coupling capacitor and set DC operating point. |
| 4 (+VCC) | Positive Supply Rail | Accepts +2.8V to +12.6V; powers both buffer core and internal reference circuitry. |
| 5 (OUT) | Buffer Output | Low-impedance (<2Ω) output capable of ±60mA; drives 50Ω/75Ω lines directly with minimal external components. |
Key Features
| Feature | Design Value |
|---|---|
| Self-referenced AC-coupled operation | Eliminates external bias network - reduces BOM count by ≥3 resistors/capacitors and improves temperature stability of input DC offset. |
| Wideband closed-loop architecture | Guarantees unity-gain stability up to 1000MHz without external compensation - simplifies layout and avoids peaking artifacts. |
| Integrated mid-supply reference buffer | Provides 2.5V/1.65V reference with <200Ω output impedance - enables direct connection to input coupling caps without RC filtering degradation. |
| Low-output-impedance drive | Delivers <2Ω closed-loop ZOUT to 20MHz - maintains signal fidelity across PCB traces and connector interfaces with minimal reflection. |
| Flexible supply compatibility | Operates from +2.8V to +12.6V single supply or ±1.4V to ±6.3V dual supply - supports migration from 5V to 3.3V systems without redesign. |
Applications
| Video Signal Distribution | Clock Distribution Circuits |
|---|---|
|
Use Scenario: Driving multiple 75Ω coaxial outputs from a single SDI/HDMI source in broadcast switchers or video routers. IC Role / Device Role / Timing Role: High-fidelity unity-gain buffer with low group delay variation (<100ps over 100MHz) and <0.15% differential gain error. Use Value: Preserves NTSC/PAL color fidelity and edge timing without requiring external level-shifting or termination networks. |
Use Scenario: Fan-out of low-jitter clock signals (e.g., 100–500MHz) to FPGA, ADC, and SERDES receivers in telecom baseband cards. IC Role / Device Role / Timing Role: Low-phase-noise buffer with 1000MHz bandwidth and <6ns settling time to 0.05% - minimizes clock skew across loads. Use Value: Enables deterministic timing closure without adding jitter or degrading signal rise/fall symmetry. |
| High-Speed Data Acquisition | Test & Measurement Equipment |
|
Use Scenario: Buffering front-end amplifier outputs before 1GSPS ADC sampling in oscilloscopes or spectrum analyzers. IC Role / Device Role / Timing Role: Wideband driver with 8000V/µs slew rate and <350ps rise time - preserves transient fidelity of fast pulses and step responses. Use Value: Prevents aperture uncertainty and amplitude droop during high-frequency sampling windows. |
Use Scenario: Output stage for arbitrary waveform generators delivering 2VPP into 50Ω loads up to 400MHz on +5V supply. IC Role / Device Role / Timing Role: High-current, low-distortion buffer with –76dBc 2nd-harmonic at 5MHz/500Ω - meets spectral purity requirements for calibration-grade sources. Use Value: Eliminates need for discrete emitter-follower stages or hybrid modules, reducing size and thermal drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS3201DR | Higher 1.8GHz bandwidth but requires external gain-setting resistors; no integrated VREF; SO-8 only. | Better for fixed-gain >1 amplification; unsuitable for self-biased AC-coupled designs without added components. | Choose THS3201DR when gain >1 and maximum bandwidth are primary; avoid when minimizing BOM or using SOT23-5 is required. |
| LMH6702MA | 720MHz bandwidth at ±5V; higher 5.5mA quiescent current; no integrated mid-supply reference; SO-8 only. | Lower power consumption than BUF602IDBVR at same supply; lacks VREF functionality - needs external bias network. | Choose LMH6702MA for cost-sensitive, lower-bandwidth applications where board space allows SO-8 and external bias is acceptable. |
Compared with THS3201DR and LMH6702MA, the BUF602IDBVR uniquely combines ultra-wide bandwidth, integrated mid-supply reference, SOT23-5 packaging, and self-contained AC-coupling - making it optimal for compact, low-component-count high-frequency buffer designs where supply flexibility and layout simplicity are critical.
Availability
BUF602IDBVR is available at Aetrix Electronics and suitable for video signal distribution, clock fan-out, and high-speed data acquisition requiring stable component supply, long-term lifecycle support, and consistent parametric performance across temperature.
Supply support for BUF602IDBVR 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
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in high-speed amplifiers and precision signal chain solutions.
The BUF602 belongs to TI's high-speed buffer product line, engineered specifically for applications demanding GHz-class bandwidth, low distortion, and simplified AC-coupled interface design in video, communications, and test equipment.
FAQ
What is the maximum operating supply voltage for BUF602IDBVR?
The BUF602IDBVR supports a maximum operating voltage of ±6.3V in dual-supply mode or +12.6V in single-supply mode. Exceeding these limits risks permanent damage per Absolute Maximum Ratings. At +12.6V, quiescent current rises to 6.5mA (typical), and output swing extends to ±5.8V into high-Z loads - enabling high-voltage signal routing while maintaining 1000MHz bandwidth at lower output amplitudes.
Does BUF602IDBVR require external compensation components?
No, the BUF602IDBVR uses an internally compensated closed-loop architecture that guarantees unity-gain stability up to 1000MHz without external capacitors or resistors. This eliminates phase-margin tuning and layout sensitivity - unlike open-loop amplifiers such as THS3201, which require careful external feedback network design to prevent oscillation at high frequencies.
Can BUF602IDBVR drive 50Ω transmission lines directly?
Yes, the BUF602IDBVR delivers ±60mA continuous output current and maintains <2Ω closed-loop output impedance to 20MHz, allowing direct drive of 50Ω coaxial cables or PCB traces. At +5V supply, it achieves ±3.8V swing into 100Ω and ±3.7V into 50Ω - sufficient for standard 1VPP/2VPP signaling with margin for cable loss and connector mismatch.
How does the internal VREF function in single-supply operation of BUF602IDBVR?
In single-supply mode, the BUF602IDBVR's VREF pin outputs a precise mid-rail voltage (e.g., 2.5V at +5V, 1.65V at +3.3V) with 200Ω output impedance. This voltage biases the input coupling capacitor, establishing a stable DC operating point for AC signals - eliminating external resistor dividers and their associated noise, drift, and layout complexity.
What is the thermal performance of BUF602IDBVR in SOT23-5 package?
The BUF602IDBVR in SOT23-5 (DBV) package has a junction-to-ambient thermal resistance (θJA) of 150°C/W. At 5.8mA quiescent current and ±60mA load, power dissipation remains below 350mW - keeping junction temperature rise under 53°C above ambient. For sustained peak-current operation, PCB copper pour under the exposed pad (if present) or thermal vias are recommended to maintain TJ < 125°C.
BUF602IDBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Buffer
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 8000V/µs
- Gain Bandwidth Product:
- 1 GHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 3 µA
- Voltage - Input Offset:
- 16 mV
- Current - Supply:
- 5.8mA
- Current - Output / Channel:
- 60 mA
- Voltage - Supply Span (Min):
- 2.8 V
- Voltage - Supply Span (Max):
- 12.6 V
- Operating Temperature:
- -45°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
BUF602IDBVR FAQ
1.How can I place an order for BUF602IDBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for BUF602IDBVR 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 BUF602IDBVR reliable?
The price and inventory of BUF602IDBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUF602IDBVR is usually 5 days.
3.What payment methods are accepted for BUF602IDBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUF602IDBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUF602IDBVR?
BUF602IDBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUF602IDBVR 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 BUF602IDBVR?
For technical support, including BUF602IDBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUF602IDBVR requirements.
6.How does Aetrix verify that BUF602IDBVR is sourced from the original manufacturer or authorized distributors?
All BUF602IDBVR 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 BUF602IDBVR meets industry standards.
7.What is the process for return or replacement of BUF602IDBVR?
All BUF602IDBVR units undergo pre-shipment inspection (PSI). If there is an issue with BUF602IDBVR, 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 BUF602IDBVR part is unused and in its original packaging.
Return procedure for BUF602IDBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BUF602IDBVR Tags
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