OPA691 (正在供货)

具有禁用功能的宽带电流反馈运算放大器

具有禁用功能的宽带电流反馈运算放大器 - OPA691
数据表
 

描述

The OPA691 sets a new level of performance for broadband current feedback op amps. Operating on a very low 5.1mA supply current, the OPA691 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 OPA691 can deliver a 1V to 4V output swing with over 150mA drive current and 190MHz bandwidth. This combination of features makes the OPA691 an ideal RGB line driver or single-supply Analog-to-Digital Converter (ADC) input driver.

The OPA691’s low 5.1mA 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. Leaving this disable pin open, or holding it HIGH, gives normal operation. If pulled LOW, the OPA691 supply current drops to less than 150µA 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
  • UNITY-GAIN STABLE: 280MHz (G =1)
  • HIGH OUTPUT CURRENT: 190mA
  • OUTPUT VOLTAGE SWING: ±4.0V
  • HIGH SLEW RATE: 2100V/µs
  • LOW dG/d: 0.07%/0.02°
  • LOW SUPPLY CURRENT: 5.1mA
  • LOW DISABLED CURRENT: 150µA
  • WIDEBAND +5V OPERATION: 190MHz (G = +2)
  • APPLICATIONS
    • xDSL LINE DRIVER
    • BROADBAND VIDEO BUFFERS
    • HIGH-SPEED IMAGING CHANNELS
    • PORTABLE INSTRUMENTS
    • ADC BUFFERS
    • ACTIVE FILTERS
    • WIDEBAND INVERTING SUMMING
    • HIGH SFDR IF AMPLIFIER

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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
OPA691 LMH6702 OPA2691 OPA2695 OPA3691 OPA3695 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   
1    1    2    2    3    3    1    1   
4    8    4    3.5    4    3.5    7    5   
12    12    12    12    12    12    12.6    12   
280    1700    280    1100    280    1000    1500    1700   
1    1    1    1    1    2    1    1   
2100    3100    2100    2900    2100    2400    1700    4300   
1.7    1.83    1.7    1.8    1.7    1.8    2.1    1.8   
1.7    1.83    1.7    1.8    1.7    1.8    2.1    1.8   
5.1    12.5    5.1    12.9    5.1    12.9    5.8    12.9   
2.5    4.5    3    3.5    3    3.5    3    3   
No    No    No    No    No    No    No    No   
Shutdown    N/A    Shutdown    Small Size
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    -40 to 85    -40 to 85   
SOIC
SOT-23   
SOIC
SOT-23   
SOIC
SOIC   
SOIC
VQFN   
SOIC
SSOP   
SSOP    SOIC
SOT-23   
SOIC
SOT-23
VSSOP   
8SOIC: 29 mm2: 6 x 4.9(SOIC)
6SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)   
8SOIC: 29 mm2: 6 x 4.9(SOIC)
5SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)   
8SOIC: 29 mm2: 6 x 4.9(SOIC)
14SOIC: 52 mm2: 6 x 8.65(SOIC)   
8SOIC: 29 mm2: 6 x 4.9(SOIC)
16VQFN: 9 mm2: 3 x 3(VQFN)   
16SOIC: 59 mm2: 6 x 9.9(SOIC)
16SSOP: 19 mm2: 3.9 x 4.9(SSOP)   
16SSOP: 19 mm2: 3.9 x 4.9(SSOP)    8SOIC: 29 mm2: 6 x 4.9(SOIC)
5SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)   
8SOIC: 29 mm2: 6 x 4.9(SOIC)
6SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)
8VSSOP: 15 mm2: 4.9 x 3(VSSOP)   
56    48    56    56    56    56    60    56   
35000000    15000000    35000000    30000000    35000000    30000000    20000000    30000000   
20    13    20    15    20    15    15    15   
280    1700    280    1100    280    1000    1500    1700   
190    80    190    120    190    120    80    120   
70    100    70    73    70    65    68    65   
74    96    74    82    74    86    72    86   
5    5    5    10    5    10    5    10   

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