Datasheet Analog Devices AD6644ASTZ-40

14-Bit, 40 MSPS/65 MSPS
Analog-to-Digital Converter
AD6644
Designed for multichannel, multimode receivers, the AD6644
is part of the Analog Devices, Inc. new SoftCell® transceiver
chipset. The AD6644 achieves 100 dB multitone, spurious-free
dynamic range (SFDR) through the Nyquist band. This breakthrough performance eases the burden placed on multimode
digital receivers (software radios) which are typically limited by
the ADC. Noise performance is exceptional; typical signal-tonoise ratio is 74 dB. FEATURES
65 MSPS guaranteed sample rate
40 MSPS version available
Sampling jitter < 300 fs
100 dB multitone SFDR
1.3 W power dissipation
Differential analog inputs
Pin compatible to AD6645
Twos complement digital output format
3.3 V CMOS compatible
Data-ready for output latching The AD6644 is also useful in single channel digital receivers
designed for use in wide-channel bandwidth systems (CDMA,
WCDMA). With oversampling, harmonics can be placed
outside the analysis bandwidth. Oversampling also facilitates
the use of decimation receivers (such as the AD6620), allowing …