Analog Devices AD9271BSVZ-25

General Purpose GULL WING QUAD CMOS Analog to Digital Converter 15pF 85C 3.6V 1.06W

AFE General Purpose 8ADC 12bit 1.8V/3.3V Automotive 100-Pin TQFP EP Tray

A/D Converter (A-D) IC; Resolution (Bits):12; Input Channels Per ADC:1; Input Channel Type:Differential, Single Ended; Data Interface:Serial, LVDS; Supply Voltage Max:1.8V; Termination Type:SMD; Package/Case:100-TQFP ;RoHS Compliant: Yes

OCTAL LNA/VGA/AAF/ADC, SMD, TQFP100; Resolution, Bits:12bit; Sampling Rate:25MSPS; Channels, No. of:8; Input Type:Differential, Single Ended; Interface Type:Serial, LVDS; Voltage, Supply Min:1.7V; Voltage, Supply Max:1.9V; Termination Type:SMD; Case Style:TQFP; Pins, No. of:100; Temperature, Operating Range:-40°C to +85°C; Base Number:9271; Packaging Type:Peel Pack

The AD9271 is designed for low cost, low power, small size, and ease of use. It contains eight channels of a variable gain amp-lifier (VGA) with low noise preamplifier (LNA); an antialiasing filter (AAF); and a 12-bit, 10 MSPS to 50 MSPS analog-to-digital converter (ADC). Each channel features a variable gain range of 30 dB, a fully differential signal path, an active input preamplifier termination, a maximum gain of up to 40 dB, and an ADC with a conversion rate of up to 50 MSPS. The channel is optimized for dynamic performance and low power in applications where a small package size is critical. The LNA has a single-ended-to-differential gain that is selectable through the SPI. The LNA input noise is typically 1.2 nV/vHz, and the combined input-referred noise of the entire channel is 1.4 nV/vHz at maximum gain. Assuming a 15 MHz noise bandwidth (NBW) and a 15.6 dB LNA gain, the input SNR is roughly 86 dB. In CW Doppler mode, the LNA output drives a transconductance amp that is switched through an 8 × 6 differential crosspoint switch. The switch is programmable through the SPI. Applications Medical imaging/ultrasound Automotive radar