The ADA4930-1/ADA4930-2 are very low noise, low distortion, high speed differential amplifiers. They are an ideal choice for driving 1.8 V high performance ADCs with resolutions up to 14 bits from dc to 70 MHz. The adjustable output common mode allows the ADA4930-1/ADA4930-2 to match the input of the ADC. The internal common-mode feedback loop provides exceptional output balance, suppression of even-order harmonic distortion products, and dc level translation. With the ADA4930-1/ADA4930-2, differential gain configurations are easily realized with a simple external feedback network of four resistors determining the closed-loop gain of the amplifier. The ADA4930-1/ADA4930-2 are fabricated using Analog Devices, Inc., proprietary silicon-germanium (SiGe), complementary bipolar process, enabling them to achieve very low levels of distortion with an input voltage noise of only 1.2 nV/√Hz. The low dc offset and excellent dynamic performance of the ADA4930-1/ADA4930-2 make them well suited for a wide variety of data acquisition and signal processing applications. The ADA4930-1 is available in a Pb-free, 3 mm × 3 mm 16-lead LFCSP, and the ADA4930-2 is available in a Pb-free, 4 mm × 4 mm 24-lead LFCSP. The pinout has been optimized to facilitate printed circuit board (PCB) layout and minimize distortion. The ADA4930-1 is specified to operate over the −40°C to +105°C temperature range, and the ADA4930-2 is specified to operate over the −40°C to +105°C temperature range for 3.3 V or 5 V supply voltages. Applications * ADC drivers * Single-ended-to-differential converters * IF and baseband gain blocks * Differential buffers * Line drivers * Low input voltage noise: 1.2 nV/√Hz * Low common-mode output: 0.9 V on single supply * Extremely low harmonic distortion * −104 dBc HD2 at 10 MHz * −79 dBc HD2 at 70 MHz * −73 dBc HD2 at 100 MHz * −101 dBc HD3 at 10 MHz * −82 dBc HD3 at 70 MHz * −75 dBc HD3 at 100 MHz * See data sheet for additional features https://elecena.pl/product/1195940/ultralow-noise-drivers-for-low-voltage-adcs 2010-10-21 https://elecena.pl/product/1195940/ultralow-noise-drivers-for-low-voltage-adcs 2015-03-28 https://elecena.pl/product/1195940/ultralow-noise-drivers-for-low-voltage-adcs 2025-01-19