GENERAL DESCRIPTON
The AD8137 is a low cost differential driver with a rail-to-rail output that is ideal for driving 12-bit ADCs in systems that are sensitive to power and cost. The AD8137 is easy to apply, and its internal common-mode feedback architecture allows its output common-mode voltage to be controlled by the voltage applied to one pin. The internal feedback loop also provides inherently balanced outputs as well as suppression of even-order harmonic distortion products. Fully differential and single-ended-to-differential gain configurations are easily realized by the AD8137. External feedback networks consisting of four resistors determine the amplifier’s closed-loop gain. The power-down feature is beneficial in critical low power applications.
The AD8137 is manufactured on Analog Devices’ proprietary second generation XFCB process, enabling it to achieve high levels of performance with very low power consumption.
The AD8137 is available in the small 8-lead SOIC package and 3 mm × 3 mm LFCSP. It is rated to operate over the extended industrial temperature range of −40°C to +125°C.

FEATURES
   Fully differential
   Extremely low power with power-down feature
      2.6 mA quiescent supply current @ 5 V
      450 µA in power-down mode @ 5 V
   High speed
      110 MHz large signal 3 dB bandwidth @ G = 1
      450 V/µs slew rate
   12-bit SFDR performance @ 500 kHz
   Fast settling time: 100 ns to 0.02%
   Low input offset voltage: ±2.6 mV max
   Low input offset current: 0.45 µA max
   Differential input and output
   Differential-to-differential or single-ended-to-differential
      operation
   Rail-to-rail output
   Adjustable output common-mode voltage
   Externally adjustable gain
   Wide supply voltage range: 2.7 V to 12 V
   Available in small SOIC package

APPLICATIONS
   12-bit ADC drivers
   Portable instrumentation
   Battery-powered applications
   Single-ended-to-differential converters
   Differential active filters
   Video amplifiers
   Level shifters