REV. A
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
AD73360
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 World Wide Web Site: http://www.analog.com
Fax: 781/326-8703 © Analog Devices, Inc., 2000
Six-Input Channel
Analog Front End
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 H9262s 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
FUNCTIONAL BLOCK DIAGRAM
VINN1
VINP1
ANALOG
H9018-H9004
MODULATOR
SDI
SDIFS
SCLK
REFCAP
REFOUT
SE
RESET
SDOFS
SDO
MCLK
VINN2
VINP2
VINN3
VINP3
VINN4
VINP4
VINN5
VINP5
VINN6
VINP6
AD73360
SIGNAL
CONDITIONING
0/38dB
PGA
DECIMATOR
SERIAL
I/O
PORT
ANALOG
H9018-H9004
MODULATOR
SIGNAL
CONDITIONING
0/38dB
PGA
DECIMATOR
ANALOG
H9018-H9004
MODULATOR
SIGNAL
CONDITIONING
0/38dB
PGA
DECIMATOR
ANALOG
H9018-H9004
MODULATOR
SIGNAL
CONDITIONING
0/38dB
PGA
DECIMATOR
ANALOG
H9018-H9004
MODULATOR
SIGNAL
CONDITIONING
0/38dB
PGA
DECIMATOR
ANALOG
H9018-H9004
MODULATOR
SIGNAL
CONDITIONING
0/38dB
PGA
DECIMATOR
REFERENCE
GENERAL DESCRIPTION
The AD73360 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 77 dB signal-to-
noise 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 me-
tering 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 cas-
caded devices to industry standard DSP engines. The SPORT
transfer rate is programmable to allow interfacing to both fast
and slow DSP engines.
The AD73360 is available in 28-lead SOIC and 44-lead TQFP
packages.