AD9649 Datasheet PDF | Analog Devices

Analog Devices AD9649

The AD9649 operates from a single 1.8 V analog power supply and features a separate digital output driver supply to accommodate 1.8 V to 3.3 V logic families. The sample-and-hold circuit maintains excellent performance for input frequencies up to 200 MHz and is designed for low cost, low power, and ease of use. The AD9649 is packaged in a 32-lead RoHS-compliant LFCSP that is pin compatible with the AD9629 12-bit ADC and the AD9609 10-bit ADC, enabling a simple migration path between 10-bit and 14-bit converters sampling from 20 MSPS to 80 MSPS.

Part No.	AD9649
Datasheet	AD9649 Download
Manufacturer	Analog Devices
Description	1.8V Analog-to-Digital Converter
Buy	Stock & Price

FEATURES

1.8 V analog supply operation 1.8 V to 3.3 V output supply SNR 74.3 dBFS at 9.7 MHz input 71.5 dBFS at 200 MHz input SFDR 93 dBc at 9.7 MHz input 80 dBc at 200 MHz input Low power 45 mW at 20 MSPS 87 mW at 80 MSPS Differential input with 700 MHz bandwidth On-chip voltage reference and sample-and-hold circuit 2 V p-p differential analog input DNL = ±0.35 LSB Serial port control options Offset binary, gray code, or twos complement data format Integer 1, 2, or 4 input clock divider Built-in selectable digital test pattern generation Energy-saving power-down modes Data clock out (DCO) with programmable clock and data alignment

APPLICATIONS

Communications Diversity radio systems Multimode digital receivers GSM, EDGE, W-CDMA, LTE, CDMA2000, WiMAX, TD-SCDMA Smart antenna systems Battery-powered instruments Handheld scope meters Portable medical imaging Ultrasound Radar/LIDAR RBIAS VCM VIN+ VIN– VREF SENSE FUNCTIONAL BLOCK DIAGRAM AVDD GND SDIO SCLK CSB DRVDD SPI PROGRAMMING DATA ADC CORE CMOS OUTPUT BUFFER OR D13 (MSB) D0 (LSB) DCO REF SELECT DIVIDE BY 1, 2, 4 AD9649 MODE CONTROLS 08539-001 CLK+ CLK– PDWN DFS MODE Figure 1.