OPA2691 具有禁用功能的双路宽带电流反馈运算放大器 | 德州仪器 TI.com.cn

OPA2691 (正在供货) 具有禁用功能的双路宽带电流反馈运算放大器

具有禁用功能的双路宽带电流反馈运算放大器 - OPA2691
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描述

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.

特性

  • 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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参数

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Part number 立即下单 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 1 kHz (Typ) (nV/rtHz) Iq per channel (Typ) (mA) Vos (offset voltage @ 25 C) (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
OPA2691 立即下单 Bipolar
Current FB    
2     4     12     280     1     2100     1.7     1.7     5.1     3     No     Shutdown     Catalog     -40 to 85     SOIC | 14
SOIC | 8    
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
14SOIC: 52 mm2: 6 x 8.65 (SOIC | 14)    
56     35000000     20     280     190     70     74     5