OPA3695 Ultra-Wideband, Current-Feedback Operational Amplifier with Disable | TI.com

OPA3695 (ACTIVE)

Ultra-Wideband, Current-Feedback Operational Amplifier with Disable

Ultra-Wideband, Current-Feedback Operational Amplifier with Disable - OPA3695
 

Recommended alternative parts

  • OPA3693  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.   Fixed gain of 0 or 6dB at lower Bandwidth at G=2V/V.
  • OPA3692  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.   Fixed gain of 0 or 6dB at lower bandwidth, but much larger output current at lower quiescent current.

Description

The OPA3695 is a triple, very high bandwidth, current-feedback opamp that combines an exceptional 4300V/µs slew rate and a very high 900MHz bandwidth (G = +2V/V) to provide an amplifier that is ideal for the most demanding video applications. The device versatility is enhanced with a low 1.8nV/√Hz input voltage noise and an output stage that can swing within 1V from the supply rail to deliver a high dynamic range signal, making it well-suited for analog-to-digital converter (ADC) front-ends or digital-to-analog converter (DAC) output buffering. Optimized for high gain operation, the OPA3695 is also well-suited for buffering surface acoustic wave (SAW) filters in an intermediate frequency (IF) system.

The low 12.9mA/channel 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 Disable control pin. Leaving this pin open, or holding it high, gives normal operation. If pulled low, the OPA3695 supply current drops to 100µA/channel. This power-saving feature, along with exceptional single +5V operation, makes the OPA3695 a good fit for low-power applications that require very high performance. The OPA3695 is available in an SSOP-16 package.

Features

  • 900MHz BANDWIDTH, GAIN = +2V/V
  • 450MHz BANDWIDTH, GAIN = +8V/V
  • WIDE OUTPUT VOLTAGE SWING: ±4V
  • ULTRA-HIGH SLEW RATE: 4300V/µs
  • 3RD-ORDER INTERCEPT: > 35dBm (f < 40MHz)
  • LOW 1.8nV/√Hz VOLTAGE NOISE
  • ±120mA OUTPUT CURRENT DRIVE
  • 12.9mA/Ch SUPPLY CURRENT (±5V)
  • LOW 0.1mA/Ch DISABLE CURRENT
  • 3.5V to 12V SINGLE-SUPPLY OPERATION
  • ±1.75V to ±6V SPLIT-SUPPLY OPERATION
  • APPLICATIONS
    • BROADBAND VIDEO LINE DRIVERS
    • VERY WIDEBAND ADC DRIVERS
    • HIGH BANDWIDTH INSTRUMENTATION AMPLIFIERS
    • HIGH-SPEED IMAGING
    • ACTIVE FILTERS
    • ARB WAVEFORM OUTPUT DRIVERS

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Parametrics Compare all products in High-Speed Op Amps (GBW>=50MHz)

 
Architecture
Number of Channels (#)
Total Supply Voltage (Min) (+5V=5, +/-5V=10)
Total Supply Voltage (Max) (+5V=5, +/-5V=10)
BW @ Acl (MHz)
Acl, min spec gain (V/V)
Slew Rate (Typ) (V/us)
Vn at Flatband (Typ) (nV/rtHz)
Vn at 1kHz (Typ) (nV/rtHz)
Iq per channel (Typ) (mA)
Vos (Offset Voltage @ 25C) (Max) (mV)
Rail-to-Rail
Features
Rating
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
CMRR (Typ) (dB)
Input Bias Current (Max) (pA)
Offset Drift (Typ) (uV/C)
GBW (Typ) (MHz)
Output Current (Typ) (mA)
2nd Harmonic (dBc)
3rd Harmonic (dBc)
@ MHz
OPA3695 LMH6702 OPA2691 OPA2695 OPA3691 OPA691 OPA694 OPA695
Bipolar
Current FB    
Bipolar
Current FB    
Bipolar
Current FB    
Bipolar
Current FB    
Bipolar
Current FB    
Bipolar
Current FB    
Bipolar
Current FB    
Bipolar
Current FB    
3     1     2     2     3     1     1     1    
3.5     8     4     3.5     4     4     7     5    
12     12     12     12     12     12     12.6     12    
1000     1700     280     1100     280     280     1500     1700    
2     1     1     1     1     1     1     1    
2400     3100     2100     2900     2100     2100     1700     4300    
1.8     1.83     1.7     1.8     1.7     1.7     2.1     1.8    
1.8     1.83     1.7     1.8     1.7     1.7     2.1     1.8    
12.9     12.5     5.1     12.9     5.1     5.1     5.8     12.9    
3.5     4.5     3     3.5     3     2.5     3     3    
No     No     No     No     No     No     No     No    
Shutdown     N/A     Shutdown     Small Size
Shutdown    
Shutdown     Shutdown     N/A     Shutdown    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
-40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85