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
数据表
 

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

All trademarks are the property of their respective owners.

查看更多内容

参数 与其它产品相比 高速 运算放大器 (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
OPA2691 LMH6702 OPA2694 OPA2695 OPA3691 OPA3695 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    
Bipolar
Current FB    
2     1     2     2     3     3     1     1     1    
4     8     7     3.5     4     3.5     4     7     5    
12     12     12.6     12     12     12     12     12.6     12    
280     1700     1500     1100     280     1000     280     1500     1700    
1     1     1     1     1     2     1     1     1    
2100     3100     1700     2900     2100     2400     2100     1700     4300    
1.7     1.83     2.1     1.8     1.7     1.8     1.7     2.1     1.8    
1.7     1.83     2.1     1.8     1.7     1.8     1.7     2.1     1.8    
5.1     12.5     5.8     12.9     5.1     12.9     5.1     5.8     12.9    
3     4.5     3.2     3.5     3     3.5     2.5     3     3    
No     No     No     No     No     No     No     No     No    
Shutdown     N/A     N/A     Small Size
Shutdown    
Shutdown     Shutdown     Shutdown     N/A     Shutdown    
Catalog