AD9484 Analog Devices, AD9484 Datasheet - Page 22

• Manufacturer Part Number: AD9484
• Description: 8-Bit, 500 MSPS, 1.8 V Analog-to-Digital Converter
• Manufacturer: Analog Devices

Specifications of AD9484

• Resolution (bits): 8bit
• # Chan: 1
• Sample Rate: 500MSPS
• Interface: Par
• Analog Input Type: Diff-Bip
• Ain Range: 1.5 V p-p,Bip 0.75V
• Adc Architecture: Pipelined
• Pkg Type: CSP

AD9484
Addr.
(Hex)
18
19
1A
1B
1C
2A
2C
1
X = don’t care.
Register Name
FLEX_VREF
USER_PATT1_LSB
USER_PATT1_MSB
USER_PATT2_LSB
USER_PATT2_MSB
OVR_CONFIG
Input coupling
Bit 7
(MSB)
B7
B7
B7
B7
0
0
(20 kΩ pull-down)
(0.59 V to 0.8 V on
00 = internal V
01 = import V
10 = export V
(from internal
11 = not used
VREF select
reference)
VREF pin)
Bit 6
B6
B6
B6
B6
0
0
REF
REF
REF
Bit 5
0
B5
B5
B5
B5
0
0
Rev. A | Page 22 of 24
Bit 4
B4
B4
B4
B4
0
0
Bit 3
B3
B3
B3
B3
0
0
Input voltage range setting:
11100 = 1.60
11101 = 1.58
11110 = 1.55
11111 = 1.52
00000 = 1.50
00001 = 1.47
00010 = 1.44
00011 = 1.42
00100 = 1.39
00101 = 1.36
00110 = 1.34
00111 = 1.31
01000 = 1.28
01001 = 1.26
01010 = 1.23
01011= 1.20
01011= 1.18
B2
B2
B2
B2
0
DC
coupling
enable
Bit 2
B1
B1
B1
B1
0
0
Bit 1
Bit 0
(LSB)
B0
B0
B0
B0
OR±
enable:
1 = on
(default)
0 = off
0
Default
Value
(Hex)
0x00
0x00
0x00
0x00
0x00
0x01
0x00
Default Notes/
Comments
User-defined
pattern, 1 LSB.
User-defined
pattern, 1 MSB.
User-defined
pattern, 2 LSBs.
User-defined
pattern, 2 MSBs.
Default is
ac coupling.