AD73560

The AD73560 has the following features including Six 16-Bit A/D Converters;Programmable Input Sample Rate;SimultaneousSampling;76 dB SNR;64 kS/s Maximum Sample Rate;-83 dB Crosstalk;Low Group Delay (25 ms Typ per ADC Channel);Programmable Input Gain;Single Supply Operation;On-Chip Reference.

The AD73560 is a six-input channel analog front-end processor for general purpose applications including industrial power metering or multichannel analog inputs. It features six 16-bit A/D conversion channels each of which provide 76 dB signal-to-noise ratio over a DC to 4KHz signal bandwidth. Each channel also features a programmable input gain amplifier (PGA) with gain settings in eight stages from 0 dB to 38 dB.The AD73560 is particularly suitable for industrial power metering as each channel samples synchronously, ensuring that there is no (phase) delay between the conversions.The AD73560 also features low group delay conversions on  all  channels.An on-chip reference voltage of 2.5V is included. The sampling rate of the device is programmable with four separate settings offering 64 kHz, 32 kHz, 16 kHz and 8 kHz sampling rates (from a master clock of 16.384 MHz) while the serial port (SPORT2) allows easy expansion of the number of input channels by cascading extra AFE external  to the AD73560.
 
The AD73560's DSP engine combines the ADSP-2100 family base architecture (three computational units, data address generators and a program sequencer) with two serial ports, a 16-bit internal DMA port, a byte DMA port, a programmable timer, Flag I/O, extensive interrupt capabilities and on-chip program and data memory.The AD73560-80 integrates 80K bytes of on-chip memory configured as 16K words (24-bit) of program RAM and 16 K (16-bit) of data RAM. The AD73560-40 integrates 40K bytes of on-chip memory configured as 8K words(24-bit) of program RAM and 8K (16-bit) of data RAM.Power-down circuitry is also provided to meet the low power needs of battery operated portable equipment. The AD73560 is available in a 119-ball PBGA  package.