OPA2691数据手册TI中文资料规格书

描述 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.

特性 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