16-Bit, 20 MSPS/40 MSPS/65 MSPS/80 MSPS,
1.8 V Analog-to-Digital Converter
Data Sheet
AD9266
FEATURES
FUNCTIONAL BLOCK DIAGRAM
AVDD
AGND
SDIO SCLK CSB DRVDD
1.8 V analog supply operation
1.8 V to 3.3 V output supply
SNR
RBIAS
VCM
SPI
AD9266
OR
77.6 dBFS at 9.7 MHz input
PROGRAMMING DATA
D15_D14
D1_D0
DCO
71.1 dBFS at 200 MHz input
SFDR
93 dBc at 9.7 MHz input
80 dBc at 200 MHz input
VIN+
VIN–
ADC
CORE
8
VREF
Low power
SENSE
56 mW at 20 MSPS
113 mW at 80 MSPS
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 = −0.6/+1.1 LSB
Interleaved data output for reduced pin-count interface
Serial port control options
DIVIDE
1 TO 8
DUTY CYCLE
STABILIZER
MODE
CONTROLS
CLK+ CLK–
PDWN DFS MODE
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 output (DCO) with programmable clock and
data alignment
PRODUCT HIGHLIGHTS
1. The AD9266 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 patented 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.
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
(D15_D14 to D1_D0) timing and offset adjustments, and
voltage reference modes.
4. The AD9266 is packaged in a 32-lead RoHS-compliant
LFCSP that is pin compatible with the AD9609 10-bit
ADC, the AD9629 12-bit ADC, and the AD9649 14-bit
ADC, enabling a simple migration path between 10-bit and
16-bit converters sampling from 20 MSPS to 80 MSPS.
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
PET/SPECT imaging
Rev. A
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