31-6504

GENERAL DESCRIPTION

The AD9231 is a monolithic, dual-channel, 1.8 V supply, 12-bit, 20 MSPS/40 MSPS/65 MSPS/80 MSPS analog-to-digital converter (ADC). It features a high performance sample-and-hold circuit and on-chip voltage reference.

FEATURES

1.8 V analog supply operation
1.8 V to 3.3 V output supply
SNR
71.3 dBFS at 9.7 MHz input
69.0 dBFS at 200 MHz input
SFDR
93 dBc at 9.7 MHz input
83 dBc at 200 MHz input
Low power
32 mW per channel at 20 MSPS
71 mW per channel 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 = ±0.40 LSB
Serial port control options
Offset binary, gray code, or twos complement data format
Optional clock duty cycle stabilizer
Integer 1-to-8 input clock divider
Data output multiplex option
Built-in selectable digital test pattern generation
Energy-saving power-down modes
Data clock out with programmable clock and data alignment

APPLICATIONS

Communications
Diversity radio systems
Multimode digital receivers
GSM, EDGE, W-CDMA, LTE, CDMA2000, WiMAX, TD-SCDMA
I/Q demodulation systems
Smart antenna systems
Battery-powered instruments
Hand held scope meters
Portable medical imaging
Ultrasound
Radar/LIDAR