Datasheet

AD9284 Data Sheet
Rev. A | Page 20 of 24
Addr
(Hex)
Register
Name
Bit 7
(MSB)
Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1
Bit 0
(LSB)
Default
Value
(Hex)
Default
Notes/
Comments
0x0F ADC input
(global/local)
Open Analog
disconnect
(local)
Common-
mode
input
enable
(global)
Open 0x00
0x10 Offset (local) Open Offset adjust (twos complement format)
0111: +7
0110: +6
…
0001: +1
0000: 0
1111: −1
…
1001: −7
1000: −8
0x00 Device offset
trim
0x14
Output
mode (local)
Open
Output
enable
Open
Output
invert
Data format select
00: offset binary
01: twos complement
10: Gray code
11: reserved
0x00
Configures
the outputs
and the
format of
the data
0x16 Output
phase
(global)
DCO invert Open 0x00
0x18 Voltage
reference
(global)
Open Voltage reference and input full-scale adjustment (see Table 13) 0x00 Selects/
adjusts V
REF
0x24 MISR LSB
(local)
LSBs of multiple input shift register (MISR) 0x00 MISR least
significant
byte; read
only
0x25 MISR MSB
(local)
MSBs of multiple input shift register (MISR) 0x00 MISR most
significant
byte; read
only