AD73360

a FEATURES Six 16-Bit A/D Converters Programmable Input Sample Rate Simultaneous Sampling 77 dB SNR 64 kS/s Maximum Sample Rate –83 dB Crosstalk Low Group Delay (25 ␮s Typ per ADC Channel) Programmable Input Gain Flexible Serial Port which Allows Multiple Devices to Be Connected in Cascade Single (+2.7 V to +5.5 V) Supply Operation 80 mW Max Power Consumption at +2.7 V On-Chip Reference 28-Lead SOIC and 44-Lead TQFP Packages APPLICATIONS General Purpose Analog Input Industrial Power Metering Motor Control Simultaneous Sampling Applications GENERAL DESCRIPTION Six-Input Channel Analog Front End AD73360 metering or multichannel analog inputs. It features six 16-bit A/D conversion channels each of which provide 77 dB signal-tonoise ratio over a dc to 4 kHz 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 AD73360 is particularly suitable for industrial power metering as each channel samples synchronously, ensuring that there is no (phase) delay between the conversions. The AD73360 also features low group delay conversions on all channels. An on-chip reference voltage is included and is programmable to accommodate either 3 V or 5 V operation. 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). A serial port (SPORT) allows easy interfacing of single or cascaded devices ...