Six-Input Channel
Analog Front End
a
AD73360L
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
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).
28-Lead SOIC Package
APPLICATIONS
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.
General-Purpose Analog Input
Industrial Power Metering
Motor Control
Simultaneous Sampling Applications
The AD73360L is available in 28-lead SOIC package.
GENERAL DESCRIPTION
The AD73360L is a six-input channel analog front-end proces-
sor for general-purpose applications, including industrial power
FUNCTIONAL BLOCK DIAGRAM
VINP1
VINN1
ANALOG
SIGNAL
0/38dB
PGA
DECIMATOR
SDI
⌺-⌬
CONDITIONING
MODULATOR
SDIFS
SCLK
VINP2
VINN2
ANALOG
⌺-⌬
MODULATOR
SIGNAL
CONDITIONING
0/38dB
PGA
DECIMATOR
DECIMATOR
VINP3
VINN3
ANALOG
⌺-⌬
MODULATOR
SIGNAL
CONDITIONING
0/38dB
PGA
RESET
MCLK
SE
REFERENCE
REFCAP
REFOUT
SERIAL
I/O
PORT
AD73360L
VINP4
VINN4
ANALOG
⌺-⌬
SIGNAL
0/38dB
PGA
DECIMATOR
DECIMATOR
DECIMATOR
CONDITIONING
MODULATOR
VINP5
VINN5
ANALOG
⌺-⌬
MODULATOR
SIGNAL
CONDITIONING
0/38dB
PGA
SDO
SDOFS
VINP6
VINN6
ANALOG
⌺-⌬
MODULATOR
SIGNAL
CONDITIONING
0/38dB
PGA
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.
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Tel: 781/329-4700
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© Analog Devices, Inc., 2000