OPA2691 - Dual Wideband Current Feedback Operational Amplifier,with Disable

Updated : 2020-01-09 14:18:06
Description

The OPA2691 sets a new level of performance for broadband dual current-feedback op amps. Operating on a very low 5.1mA/ch supply current, the OPA2691 offers a slew rate and output power normally associated with a much higher supply current. A new output stage architecture delivers a high output current with minimal voltage headroom and crossover distortion. This gives exceptional single-supply operation. Using a single +5V supply, the OPA2691 can deliver a 1V to 4V output swing with over 150mA drive current and 190MHz bandwidth. This combination of features makes the OPA2691 an ideal RGB line driver or single-supply Analog-to-Digital Converter (ADC) input driver.

The OPA2691’s low 5.1mA/ch supply current is precisely trimmed at 25°C. This trim, along with low drift over temperature, ensures lower maximum supply current than competing products. System power may be further reduced by using the optional disable control pin (SO-14 only). Leaving this disable pin open, or holding it HIGH, gives normal operation. If pulled LOW, the OPA2691 supply current drops to less than 150 µA/ch while the output goes into a high impedance state. This feature may be used for power savings.

Products containing the "OPA2691" keyword are: OPA2691I-14D , OPA2691I-14D , OPA2691I-14DG4 , OPA2691I-14DG4 , OPA2691I-14DR , OPA2691I-14DR , OPA2691I-14DRG4 , OPA2691I-14DRG4 , OPA2691I14DR , OPA2691ID , OPA2691ID , OPA2691ID. , OPA2691IDG4 , OPA2691IDR , OPA2691IDR , OPA2691IDR. , OPA2691IDRG4 , OPA2691IDRG4
Features

  • FLEXIBLE SUPPLY RANGE:
       +5V to +12V Single Supply
       ±2.5V to ±6V Dual Supply
  • WIDEBAND +5V OPERATION: 190MHz (G =+2)
  • UNITY-GAIN STABLE: 280MHz (G =1)
  • HIGH OUTPUT CURRENT: 190mA
  • OUTPUT VOLTAGE SWING: ±4.0V
  • HIGH SLEW RATE: 2100V/µs
  • LOW SUPPLY CURRENT: 5.1mA/ch
  • LOW DISABLED CURRENT: 150 µA/ch
  • APPLICATIONS
    • xDSL LINE DRIVER/RECEIVER
    • MATCHED I/Q CHANNEL AMPLIFIER
    • BROADBAND VIDEO BUFFERS
    • HIGH-SPEED IMAGING CHANNELS
    • PORTABLE INSTRUMENTS
    • DIFFERENTIAL ADC DRIVERS
    • ACTIVE FILTERS
    • WIDEBAND INVERTING SUMMING

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Parametrics
StatusACTIVE
ArchitectureBipolar^Current FB
Number of channels2
Total Supply Voltage12
BW @ Acl280
Acl, min spec gain1
Slew Rate2100
Vn at flatband1.7
Vn at 1 kHz1.7
Iq per channel5.1
Vos (offset voltage @ 25 C)3
Rail-to-railNo
FeaturesShutdown
RatingCatalog
Operating temperature range-40 to 85
Package GroupSOIC|14
Approx. price2.16 | 1ku
Package size: mm2:W x L (PKG)[pf]8SOIC[/pf]: 29 mm2: 6 x 4.9 (SOIC|8)
CMRR56
Input bias current35000000
Offset drift20
GBW280
Output current190
2nd harmonic70
3rd harmonic74
@ MHz5
Radiation, TID
Radiation, SEL