SBOS293H December   2003  – December 2015 OPA695

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Parameter Measurement Information
    1. 7.1 Differential Small Signal Measurement
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Wideband Current Feedback Operation
      2. 8.3.2 RF Specifications and Applications
      3. 8.3.3 Input Return Loss (S11)
      4. 8.3.4 Output Return Loss (S22)
      5. 8.3.5 Forward Gain (S21)
      6. 8.3.6 Reverse Isolation (S12)
      7. 8.3.7 Limits to Dynamic Range
        1. 8.3.7.1 -1-dB Compression
        2. 8.3.7.2 Two-Tone 3rd-Order Output Intermodulation Intercept (OP3)
        3. 8.3.7.3 Noise Figure
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 SAW Filter Buffer
      2. 9.1.2 LO Buffer Amplifier
      3. 9.1.3 Wideband Cable Driving Applications
        1. 9.1.3.1 Cable Modem Return Path Driver
        2. 9.1.3.2 RGB Video Line Driver
        3. 9.1.3.3 Arbitrary Waveform Driver
      4. 9.1.4 Differential I/O Applications
      5. 9.1.5 Operating Suggestions
        1. 9.1.5.1 Setting Resistor Values to Optimize Bandwidth
        2. 9.1.5.2 Output Current and Voltage
        3. 9.1.5.3 Driving Capacitive Loads
        4. 9.1.5.4 Distortion Performance
        5. 9.1.5.5 Noise Performance
        6. 9.1.5.6 DC Accuracy and Offset Control
        7. 9.1.5.7 Power Shutdown Operation
        8. 9.1.5.8 Thermal Analysis
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
        1. 9.2.1.1 Saw Filter Buffer
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Input and ESD Protection
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Design-In Tools
        1. 12.1.1.1 Demonstration Fixtures
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Community Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

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订购信息

1 Features

  • Gain = +2 Bandwidth (1400 MHz)
  • Gain = +8 Bandwidth (450 MHz)
  • Output Voltage Swing: ±4.2 V
  • Ultra-High Slew Rate: 4300 V/μs
  • 3RD-Order Intercept: > 40 dBm (f < 50 MHz)
  • Low Power: 129 mW
  • Low Disabled Power: 0.5 mW
  • Packages: SOIC-8, VSSOP-8, SOT23-6

2 Applications

  • Very Wideband ADC Drivers
  • Low-Cost Precision IF Amplifiers
  • Broadband Video Line Drivers
  • Portable Instruments
  • Active Filters
  • ARB Waveform Output Drivers
  • OPA685 Performance Upgrades

3 Description

The OPA695 is a high bandwidth, current-feedback operational amplifier that combines an exceptional 4300-V/μs slew rate and a low input voltage noise to deliver a precision, low-cost, high dynamic range intermediate frequency (IF) amplifier. Optimized for high gain operation, the OPA695 is ideally suited to buffering surface acoustic wave (SAW) filters in an IF strip, or delivering high output power at low distortion for cable-modem upstream line drivers. At lower gains, a higher bandwidth of 1400 MHz is achievable, making the OPA695 an excellent video line driver for supporting high-resolution RGB applications.

The OPA695 low 12.9-mA supply current is precisely trimmed at +25°C. This trim, along with a low temperature drift, gives low system power over temperature. System power may be further reduced using the optional disable control pin. Leaving this pin open, or holding it HIGH, gives normal operation. If pulled LOW, the OPA695 supply current drops to less than 170 μA. This power-saving feature, along with exceptional single +5-V operation and ultra-small SOT23-6 packaging, make the OPA695 ideal for portable applications.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
OPA695 SOT-23 (6) 1.60 mm × 2.90 mm
VSSOP (8) 3.00 mm × 3.00 mm
SOIC (8) 3.91 mm × 4.90 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Gain 2V/V Video Line Driver

OPA695 gain_2vv_video_line_driver.gif

Gain of +2V/V Video Line Driver Pulse Response

OPA695 gain_2vv_video_line_driver_pulse_resp.gif