ADE7759ARSRL Analog Devices Inc, ADE7759ARSRL Datasheet - Page 30

• Manufacturer Part Number: ADE7759ARSRL
• Description: IC ENERGY METERING 1PHASE 20SSOP
• Manufacturer: Analog Devices Inc

Specifications of ADE7759ARSRL

• Rohs Status: RoHS non-compliant
• Input Impedance: 390 KOhm
• Measurement Error: 0.1%
• Voltage - I/o High: 2.4V
• Voltage - I/o Low: 0.8V
• Current - Supply: 3mA
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-SSOP (0.200", 5.30mm Width)
• Meter Type: Single Phase
• For Use With: EVAL-ADE7759EBZ - BOARD EVALUATION FOR ADE7759

Bit
Location
0 to 4
5 to 6
7
ADE7759
REGISTER DESCRIPTIONS
All ADE7759 functionality is accessed via the on-chip registers.
Each register is accessed by first writing to the communications
register and then transferring the register data. A full description
of the serial interface protocol is given in the Serial Interface
section.
DB7
W/R
Bit
Mnemonic
A0 to A4
RESERVED
W/R
DB6
0
These bits are unused and should be set to zero.
Description
The five LSBs of the communications register specify the register for the data transfer opera-
tion. Table III lists the address of each ADE7759 on-chip register.
When this bit is a Logic 1, the data transfer operation immediately following the write to the
Communications register will be interpreted as a write to the ADE7759. When this bit is a
Logic 0, the data transfer operation immediately following the write to the communications
register will be interpreted as a read operation.
DB5
0
Table V. Communications Register
DB4
A4
–30–
DB3
A3
Communications Register
The communications register is an 8-bit, write-only register
that controls the serial data transfer between the ADE7759 and
the host processor. All data transfer operations must begin with
a write to the communications register. The data written to the
communications register determines whether the next operation
is a read or a write and which register is being accessed. Table V
outlines the bit designations for the communications register.
DB2
A2
DB1
A1
DB0
A0
REV. A