ADA4941-1

The ADA4941-1 is a low power, differential driver for 16- to 18- bit ADCs. Configured in an easy-to-use, single-ended-todifferential G = +2 configuration, the ADA4941-1 requires no external components to drive ADCs with differential inputs provided that the IN- pin is tied to the OUT+ pin. A resistive network around the IN- pin can be used for additional gain as needed. The ADA4941-1 provides essential benefits, such as low distortion and high SNR, that are required for driving high resolution ADCs.

With a wide input voltage range (0 V to 4 V on a single 5 V supply), rail-to-rail output, and high input impedance, the ADA4941-1 is designed to drive single-supply ADCs found in a variety of low power applications, including battery-operated instruments and single-supply data acquisition systems.

The ADA4941-1 is manufactured on ADI's proprietary 2nd generation XFCB process that enables the single-ended-todifferential converter to achieve 18-bit performance using only 2.1 mA of supply current.

The ADA4941-1 is ideal for driving 16- to 18-bit differential PulSAR™ ADCs such as the AD7690 and AD7691.

The ADA4941-1 is available in a small 8 lead LFCSP packaging as well as 8-lead SOIC packaging. The ADA4941-1 is rated to work over the extended industrial temperature range, −40°C to +125°C.