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AD9680 Datasheet(PDF) 83 Page - Analog Devices

Part # AD9680
Description  Dual, 14-Bit, 1.25 GSPS, 1.2 V/2.5 V, Analog-to-Digital Converter
PDF  97 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD9680 Datasheet(HTML) 83 Page - Analog Devices

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Product
Overview
Online
Documentation
Design
Resources
Discussion
Sample
& Buy
Data Sheet
AD9680
Rev. C | Page 83 of 97
MEMORY MAP REGISTER TABLE
All address locations that are not included in Table 36 are not currently supported for this device and should not be written.
Table 36. 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
0
0
1
0
1
0xC5
Read
only
0x005
CHIP_ID
(high byte)
0
0
0
0
0
0
0
0
0x00
Read
only
0x006
CHIP_
GRADE
1100 = 1250 MSPS
1010 = 1000 MSPS
1000 = 820 MSPS
0101 = 500 MSPS
X
X
X
X
Read
only
0x008
Device index
0
0
0
0
0
0
Channel B
Channel A
0x0
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
Analog Input Buffer Control 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
1110 = AD9680-1250 and AD9680-1000
1100 = AD9680-820 and AD9680-500
0x0E for
AD9680-
1250 and
AD9680-
1000;
0x0C for
AD9680-
820 and
AD9680-
500
0x934
Input
capacitance
(local)
0
0
0
0x1F = 3 pF to GND (default)
0x00 = 1.5 pF to GND
0x1F



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