SST-SALEM-3T Analog Devices, Inc., SST-SALEM-3T Datasheet - Page 8

• Manufacturer Part Number: SST-SALEM-3T
• Description: Salem Three-phase Electronic Energy Meter
• Manufacturer: Analog Devices, Inc.

ADSST-EM-3035
ADSST-73360AR (ADC)
FEATURES
Six 16-Bit A/D Converters
Programmable Input Sample Rate
Simultaneous Sampling
76 dB SNR
64 kS/s Maximum Sample Rate
–83 dB Crosstalk
Low Group Delay (125 s Typ per ADC Channel)
Programmable Input Gain
Flexible Serial Port which Allows Multiple Devices to
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
be Connected in Cascade
REFCAP
REFOUT
VINN1
VINN2
VINN3
VINN4
VINN5
VINN6
VINP1
VINP2
VINP3
VINP4
VINP5
VINP6
CONDITIONING
CONDITIONING
CONDITIONING
CONDITIONING
CONDITIONING
CONDITIONING
SIGNAL
SIGNAL
SIGNAL
SIGNAL
SIGNAL
SIGNAL
Figure 4. Functional Block Diagram
0/38dB
0/38dB
0/38dB
0/38dB
0/38dB
0/38dB
PGA
PGA
PGA
PGA
PGA
PGA
REFERENCE
CONDITIONING
CONDITIONING
CONDITIONING
CONDITIONING
CONDITIONING
CONDITIONING
ANALOG
ANALOG
ANALOG
ANALOG
ANALOG
ANALOG
–8–
-
-
-
-
-
-
ADSST-73360AR
GENERAL DESCRIPTION
The ADSST-73360AR is a six-input channel analog front-end
processor for power metering. It features six 16-bit A/D conver-
sion provide 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 ADSST-73360AR is particularly suitable for industrial
power metering as each channel samples synchronously, ensur-
ing that there is no (phase) delay between the conversions. The
ADSST-73360AR 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 ADSST-73360AR is available in 28-lead SOIC.
DECIMATOR
DECIMATOR
DECIMATOR
DECIMATOR
DECIMATOR
DECIMATOR
SERIAL
PORT
I/O
SDI
SDIFS
SCLK
RESET
MCLK
SE
SDO
SDOFS
REV. 0