Wideband, Voltage Feedback Operational Amplifier With Disable - OPA690

OPA690 (ACTIVE)

Wideband, Voltage Feedback Operational Amplifier With Disable

Description

The OPA690 represents a major step forward in unity-gain stable, voltage-feedback op amps. A new internal architecture provides slew rate and full-power bandwidth previously found only in wideband, current-feedback op amps. A new output stage architecture delivers high currents with a minimal headroom requirement. These combine to give exceptional single-supply operation. Using a single +5V supply, the OPA690 can deliver a 1V to 4V output swing with over 150mA drive current and 150MHz bandwidth. This combination of features makes the OPA690 an ideal RGB line driver or single-supply Analog-to-Digital Converter (ADC) input driver.

The low 5.5mA supply current of the OPA690 is precisely trimmed at +25°C. This trim, along with low temperature drift, gives lower maximum supply current than competing products. System power may be reduced further using the optional disable control pin. Leaving this disable pin open, or holding it HIGH, will operate the OPA690 normally. If pulled LOW, the OPA690 supply current drops to less than 100µA while the output goes to a high-impedance state. This feature may be used for power savings.

Features

  • FLEXIBLE SUPPLY RANGE:
    +5V to +12V Single Supply
    ±2.5V to ±5V Dual Supply
  • UNITY-GAIN STABLE: 500MHz (G = 1)
  • HIGH OUTPUT CURRENT: 190mA
  • OUTPUT VOLTAGE SWING: ±4.0V
  • HIGH SLEW RATE: 1800V/µs
  • LOW SUPPLY CURRENT: 5.5mA
  • LOW DISABLE CURRENT: 100µA
  • WIDEBAND +5V OPERATION: 220MHz (G = 2)
  • APPLICATIONS
    • VIDEO LINE DRIVING
    • xDSL LINE DRIVER/RECEIVER
    • HIGH-SPEED IMAGING CHANNELS
    • ADC BUFFERS
    • PORTABLE INSTRUMENTS
    • TRANSIMPEDANCE AMPLIFIERS
    • ACTIVE FILTERS

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Parametrics Compare all products in High Speed Amplifier (>=50MHz)

 
Architecture
Number of Channels (#)
Acl, min stable gain (V/V)
BW @ Acl (MHz)
Slew Rate (Typ) (V/us)
Settling Time (0.1%) (Typ) (ns)
Vn at Flatband (Typ) (nV/rtHz)
Vs (Min) (V)
Vs (Max) (V)
Iq per channel (Max) (mA)
Io (Typ) (mA)
3rd Harmonic (dBc)
2nd Harmonic (dBc)
Vos (Max) (mV)
Offset Voltage Drift (+/-) (Max) (uV/Degrees Celsius)
Rating
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
OPA690
Voltage Feedback    
1    
1    
500    
1800    
8    
5.5    
4.5    
12    
6.2    
190    
81    
77    
4.5    
12    
Catalog    
-40 to 85    
6SOT-23
8SOIC    
1.55 | 1ku    

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