AD8139ARDZ-REEL7

The AD8139 is an ultralow noise, high performance differential amplifier with rail-to-rail output. With its low noise, high SFDR, and wide bandwidth, it is an ideal choice for driving analog-to-digital converters (ADCs) with resolutions to 18 bits. The AD8139 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 outstanding output balance as well as suppression of even-order harmonic distortion products. Fully differential and single-ended-to-differential gain configurations are easily realized by the AD8139. Simple external feedback networks consisting of four resistors determine the closed-loop gain of the amplifier. The AD8139 is manufactured on the proprietary second-generation XFCB process, enabling it to achieve low levels of distortion with input voltage noise of only 2.25 nV/√Hz. The AD8139 is available in an 8-lead SOIC package with an exposed paddle (EP) on the underside of its body and a 3 mm×3 mm LFCSP. It is rated to operate over the temperature range of -40°C to +125°C.

Applications

• ADC drivers to 18 bits
• Single-ended-to-differential converters
• Differential filters
• Level shifters
• Differential PCB drivers
• Differential cable drivers

Key features

• Rail-to-rail output
• Adjustable output common-mode voltage
• Wide supply voltage range: 5 V to 12 V
• Available in a small SOIC package and an 8-lead LFCSP