10-Bit, 20 MSPS/40 MSPS/65 MSPS/80 MSPS,
1.8 V Analog-to-Digital Converter
Data Sheet
AD9609
FEATURES
FUNCTIONAL BLOCK DIAGRAM
AVDD
GND
SDIO SCLK CSB
DRVDD
1.8 V analog supply operation
1.8 V to 3.3 V output supply
SNR
RBIAS
VCM
SPI
61.5 dBFS at 9.7 MHz input
OR
PROGRAMMING DATA
61.0 dBFS at 200 MHz input
SFDR
75 dBc at 9.7 MHz input
73 dBc at 200 MHz input
Low power
D9 (MSB)
VIN+
VIN–
ADC
CORE
D0 (LSB)
DCO
VREF
SENSE
45 mW at 20 MSPS
76 mW at 80 MSPS
AD9609
REF
SELECT
Differential input with 700 MHz bandwidth
On-chip voltage reference and sample-and-hold circuit
2 V p-p differential analog input
DNL = 0.10 LSB
DIVIDE
BY
1 TO 8
MODE
DCS
CONTROLS
CLK+ CLK–
PDWN DFS MODE
Serial port control options
Figure 1.
Offset binary, gray code, or twos complement data format
Optional clock duty cycle stabilizer
Integer 1-to-8 input clock divider
Built-in selectable digital test pattern generation
Energy-saving power-down modes
Data clock out with programmable clock and data alignment
PRODUCT HIGHLIGHTS
1. The AD9609 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.
2. 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.
APPLICATIONS
3. A standard serial port interface supports various product
features and functions, such as data output formatting,
internal clock divider, power-down, DCO and data output
(D9 to D0) timing and offset adjustments, and voltage
reference modes.
4. The AD9609 is packaged in a 32-lead RoHS compliant
LFCSP that is pin compatible with the AD9629 12-bit ADC
and the AD9649 14-bit ADC, enabling a simple migration
path between 10-bit and 14-bit converters sampling from
20 MSPS to 80 MSPS.
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
PET/SPECT imaging
Rev. B
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rightsof third parties that may result fromits use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks andregisteredtrademarks are theproperty of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2009–2017 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com