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AD9684 Datasheet(PDF) 55 Page - Analog Devices

Part # AD9684
Description  Dual Analog-to-Digital Converter
PDF  65 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD9684 Datasheet(HTML) 55 Page - Analog Devices

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AD9684
Data Sheet
MEMORY MAP REGISTER TABLE
All address locations that are not included in Table 29 are not currently supported for this device and must not be written.
Table 29. Memory Map Registers
Reg.
Addr.
(Hex)
Register
Name
Bit 7
(MSB)
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0 (LSB)
Default
Notes
Analog Devices SPI Registers
0x000
INTERFACE_
CONFIG_A
Soft reset
(self
clearing)
LSB first
0 = MSB
1 = LSB
Address
ascension
0
0
Address
ascension
LSB first
0 = MSB
1 = LSB
Soft reset
(self
clearing)
0x00
0x001
INTERFACE_
CONFIG_B
Single
instruction
0
0
0
0
0
Datapath
soft reset
(self
clearing)
0
0x00
0x002
DEVICE_
CONFIG
(local)
0
0
0
0
0
0
00 = normal operation
10 = standby
11 = power-down
0x00
0x003
CHIP_TYPE
011 = high speed ADC
0x03
Read only
0x004
CHIP_ID
(low byte)
1
1
0
1
0
0
1
1
0xD3
Read only
0x005
CHIP_ID
(high byte)
0
0x00
Read only
0x006
CHIP_
GRADE
Chip speed grade
0101 = 500 MSPS
0
1
0
X
0x5X
Read only
0x008
Device
index
0
0
0
0
0
0
Channel B Channel A
0x03
0x00A
Scratch
pad
0
0
0
0
0
0
0
0
0x00
0x00B
SPI revision 0
0
0
0
0
0
0
1
0x01
0x00C
Vendor ID
(low byte)
0
1
0
1
0
1
1
0
0x56
Read only
0x00D
Vendor ID
(high byte)
0
0
0
0
0
1
0
0
0x04
Read only
ADC Function Registers
0x015
Analog
input
(local)
0
0
0
0
0
0
0
Input
disable
0 = normal
operation
1 = input
disabled
0x00
0x016
Input
termination
(local)
Analog input differential termination
0000 = 400 Ω (default)
0001 = 200 Ω
0010 = 100 Ω
0110 = 50 Ω
1
1
0
0
0x0C
0x018
Input
buffer
current
control
(local)
0000 = 1.0× buffer current (default)
0001 = 1.5× buffer current
0010 = 2.0× buffer current
0011 = 2.5× buffer current
0100 = 3.0× buffer current
0101 = 3.5× buffer current
…
1111 = 8.5× buffer current
0
0
0
0
0x20
0x024
V_1P0
control
0
0
0
0
0
0
0
1.0 V refer-
ence select
0 = internal
1 =
external
0x00
0x025
Input full-
scale range
(local)
0
0
0
0
Full-scale adjust
0000 = 1.94 V
1000 = 1.46 V
1001 = 1.58 V
1010 = 1.70 V
1011 = 1.82 V
1100 = 2.06 V (default)
0x0C
V p-p
differ-
ential; use
in con-
junction
with Reg.
0x030
Rev. 0 | Page 54 of 64



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