a
FEATURES
Six 16-Bit A/D Converters
Programmable Input Sample Rate
Simultaneous Sampling
76 dB SNR
64 kS/s Maximum Sample Rate
–95 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 3.6 V) Supply Operation
80 mW Max Power Consumption at 2.7 V
On-Chip Reference
28-Lead SOIC Package
APPLICATIONS
General-Purpose Analog Input
Industrial Power Metering
Motor Control
Simultaneous Sampling Applications
GENERAL DESCRIPTION
Six-Input Channel
Analog Front End
AD73360L
metering or multichannel analog inputs. It features six 16-bit
A/D conversion channels, each of which provides 76 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 AD73360L is particularly suitable for industrial power
metering as each channel samples synchronously, ensuring that
there is no (phase) delay between the conversions. The AD73360L
also features low group delay conversions on all channels.
An on-chip reference voltage is included with a nominal value
of 1.2 V.
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 AD73360L is available in 28-lead SOIC package.
The AD73360L is a six-input channel analog front-end proces-
sor for general-purpose applications, including industrial power
FUNCTIONAL BLOCK DIAGRAM
VINP1
SIGNAL
CONDITIONING
VINN1
0/38dB
PGA
ANALOG
-
MODULATOR
DECIMATOR
SDI
SDIFS
VINP2
SIGNAL
CONDITIONING
VINN2
0/38dB
PGA
ANALOG
-
MODULATOR
SCLK
DECIMATOR
VINP3
VINN3
REFCAP
REFOUT
VINP4
SIGNAL
CONDITIONING
0/38dB
PGA
ANALOG
-
MODULATOR
DECIMATOR
RESET
REFERENCE
AD73360L
ANALOG
-
MODULATOR
SERIAL
I/O
PORT
MCLK
SE
SIGNAL
CONDITIONING
VINN4
0/38dB
PGA
DECIMATOR
VINP5
VINN5
SIGNAL
CONDITIONING
0/38dB
PGA
ANALOG
-
MODULATOR
DECIMATOR
SDO
SDOFS
VINP6
VINN6
SIGNAL
CONDITIONING
0/38dB
PGA
ANALOG
-
MODULATOR
DECIMATOR
REV. 0
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.
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
AD [ ANALOG DEVICES ]
