AD8137 Low Cost, Low Power Differential ADC Driver
Product Details
The AD8137 is a low cost differential driver with a rail-to-rail output that is ideal for driving 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 closed-loop gain of the amplifier. The power-down feature is beneficial in critical low power applications.
The AD8137 is manufactured on Analog Devices, Inc., 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 package. It is rated to operate over the extended industrial temperature range of −40°C to +125°C.
APPLICATIONS
- ADC drivers
- Portable instrumentation
- Battery-powered applications
- Single-ended-to-differential converters
- Differential active filters
- Video amplifiers
- Level shifters
Features and Benefits
- 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
- 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
- See data sheet for additional features