OPA2695 具有禁用功能的超宽带电流反馈运算放大器 | 德州仪器 TI.com.cn

OPA2695 (正在供货)

具有禁用功能的超宽带电流反馈运算放大器

具有禁用功能的超宽带电流反馈运算放大器 - OPA2695
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备选器件推荐

  • THS4509  - 器件与被比较器件具有相似功能,但并不功能等效。   Fully differential amplifier option for higher IF, with a lower gain.
  • THS4520  - 器件与被比较器件具有相似功能,但并不功能等效。   Fully differential amplifier option.
  • OPA2690  - 器件与被比较器件具有相似功能,但并不功能等效。   Voltage Feedback Option

描述

The OPA2695 is a dual, very high bandwidth, current-feedback op amp that combines exceptional 2900V/µs slew rate and low input voltage noise to deliver a precision, low-cost, high dynamic range intermediate frequency (IF) amplifier. The device has been optimized for high gain operation, and the pin outs of the two available packages (QFN-16, SO-8) have been optimized to provide symmetrical input and output paths. This architecture makes the OPA2695 an ideal choice as a differential driver, such as for a high-speed analog-to-digital converter (ADC).

The OPA2695 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 with the optional disable control pin. Leaving this pin open, or holding it high, gives normal operation. If pulled low, the OPA2695 supply current drops to less than 200µA/channel. This power-saving feature, along with exceptional single +5V operation, makes the OPA2695 ideal for portable applications. The OPA2695 is available in an SO-8 (without disable) package or QFN-16 package (with disable).

特性

  • GAIN = +2V/V BANDWIDTH (850MHz)
  • GAIN = +8V/V BANDWIDTH (450MHz)
  • OUTPUT VOLTAGE SWING: ±4.1V
  • ULTRA-HIGH SLEW RATE: 2900V/µs
  • DIFFERENTIAL 3RD-ORDER INTERCEPT:
    > 40dBm (f < 140MHz, 800 )
  • LOW POWER: 129mW/channel
  • LOW DISABLED POWER: 0.5mW/channel
  • APPLICATIONS
    • VERY WIDEBAND ADC DRIVERS
    • LOW-COST PRECISION IF AMPLIFIERS
    • BROADBAND VIDEO LINE DRIVERS
    • PORTABLE INSTRUMENTS
    • ACTIVE FILTERS
    • ARB WAVEFORM OUTPUT DRIVERS

PowerPAD is a trademark of Texas Instruments, Inc.
All other trademarks are the property of their respective owners.

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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
OPA2695 LMH6702 OPA2691 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    
2     1     2     3     3     1     1     1    
3.5     8     4     4     3.5     4     7     5    
12     12     12     12     12     12     12.6     12    
1100     1700     280     280     1000     280     1500     1700    
1     1     1     1     2     1     1     1    
2900     3100     2100     2100     2400     2100     1700     4300    
1.8     1.83     1.7     1.7     1.8     1.7     2.1     1.8    
1.8     1.83     1.7     1.7     1.8     1.7     2.1     1.8    
12.9     12.5     5.1     5.1     12.9     5.1     5.8     12.9    
3.5     4.5     3     3     3.5     2.5     3     3    
No     No     No     No     No     No     No     No    
Small Size
Shutdown    
N/A     Shutdown     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