AD825AR-REEL7

低成本，通用型高速JFET放大器 Low Cost, General Purpose High Speed JFET Amplifier

GENERAL DESCRIPTION

The AD825 is a superbly optimized operational amplifier for high speed, low cost, and dc parameters, making it ideally suited for a broad range of signal conditioning and data acquisition applications. The ac performance, gain, bandwidth, slew rate, and drive capability are all very stable over temperature. The AD825 also maintains stable gain under varying load conditions.

The unique input stage has ultralow input bias current and input current noise. Signals that go to either rail on this high performance input do not cause phase reversals at the output.

These features make the AD825 a good choice as a buffer for MUX outputs, creating minimal offset and gain errors.

The AD825 is fully specified for operation with dual ±5 V and ±15 V supplies. This power supply flexibility, and the low supply current of 6.5 mA with excellent ac characteristics under all supply conditions, makes the AD825 well-suited for many demanding applications.

FEATURES

  High speed

     41 MHz, −3 dB bandwidth

     125 V/µs slew rate

     80 ns settling time

  Input bias current of 20 pA and noise current of 10 fA/√Hz

  Input voltage noise of 12 nV/√Hz

  Fully specified power supplies: ±5 V to ±15 V

  Low distortion: −76 dB at 1 MHz

  High output drive capability

     Drives unlimited capacitance load

     50 mA min output current

  No phase reversal when input is at rail

  Available in 8-lead SOIC

APPLICATIONS

  CCDs

  Low distortion filters

  Mixed gain stages

  Audio amplifiers

  Photo detector interfaces

  ADC input buffers

  DAC output buffers