AD9680 datasheet(84/97 Pages) AD

84 / 97 page

Product

Overview

Online

Documentation

Design

Resources

Discussion

Sample

& Buy

AD9680

Data Sheet

Rev. C | Page 84 of 97

Reg

Addr

(Hex)

Name

Bit 7

(MSB)

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0 (LSB)

Default

Notes

0x018

Buffer

Control 1

(local)

0000 = 1.0× buffer current

0001 = 1.5× buffer current

0010 = 2.0× buffer current (default for AD9680-500)

0011 = 2.5× buffer current

0100 = 3.0× buffer current (default for AD9680-1000

and AD9680-820)

0101 = 3.5× buffer current (default for AD9680-1250)

…

1111 = 8.5× buffer current

0x50 for

AD9680-

1250;

0x40 for

AD9680-

1000

and

AD9680-

820;

0x20 for

AD9680-

500

0x019

Buffer

Control 2

(local)

0100 = Setting 1 (default for AD9680-820)

0101 = Setting 2 (default for AD9680-1250 and

AD9680-1000)

0110 = Setting 3 (default for AD9680-500)

0111 = Setting 4

0x50 for

AD9680-

1250 and

AD9680-

1000;

0x40 for

AD9680-

820;

0x60 for

AD9680-

500

0x01A

Buffer

Control 3

(local)

1000 = Setting 1

1001 = Setting 2 (default for AD9680-1250,

AD9680-1000 and AD9680-820)

1010 = Setting 3 (default for AD9680-500)

0x09 for

AD9680-

1250,

AD9680-

1000

and

AD9680-

820;

0x0A for

AD9680-

500

0x11A

Buffer

Control 4

(local)

High

frequency

setting

0 = off

(default)

1 = on

0x935

Buffer

Control 5

(local)

Low

frequency

operation

0 = off

1 = on

(default)

0x025

Input full-

scale range

(local)

Full-scale adjust

0000 = 1.94 V

1000 = 1.46 V

1001 = 1.58 V (default for AD9680-1250)

1010 = 1.70 V (default for AD9680-1000 and

AD9680-820)

1011 = 1.82 V

1100 = 2.06 V (default for AD9680-500)

0x09 for

AD9680-

1250;

0x0A for

AD9680-

1000

and

AD9680-

820;

0x0C for

AD9680-

500

V p-p

differ-

ential;

use in

conjunc-

tion with

Reg.

0x030

Input full-

scale control

(local)

Full-scale control

See Table 10 for recommended settings

for different frequency bands;

default values:

AD9680-1250, AD9680-1000 = 110

AD9680-820 = 101

AD9680-500 = 001

AD9680-500 = 110 (for <1.82 V)

Used in

conjunc-

tion with

Reg.

0x025

AD9680 Datasheet(PDF) 84 Page - Analog Devices

AD9680 Datasheet(HTML) 84 Page - Analog Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97

Datasheet Download

Link URL