PACKAGE/ORDERING INFORMATION
MINIMUM
RELATIVE
ACCURACY
(LSB)
±2
"
±1
"
MAXIMUM
GAIN ERROR
(%)
±0.75
"
±0.5
"
SPECIFICATION
TEMPERATURE
RANGE
–40°C to +85°C
"
–40°C to +85°C
"
PACKAGE
DRAWING
NUMBER
(1)
352
"
352
"
PRODUCT
ADS7861E
"
ADS7861EB
"
PACKAGE
24-Lead SSOP
"
24-Lead SSOP
"
ORDERING
NUMBER
(2)
ADS7861E
ADS7861EB/2K5
ADS7861E
ADS7861EB/2K5
TRANSPORT
MEDIA
Rails
Tape and Reel
Rails
Tape and Reel
NOTES: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book. (2) Models with a slash (/) are
available only in Tape and Reel in the quantities indicated (e.g., /2K indicates 2000 devices per reel). Ordering 2000 pieces of “ADS7861E/2K” will get a single 2000-
piece Tape and Reel. For detailed Tape and Reel mechanical information, refer to Appendix B of Burr-Brown IC Data Book.
TRUTH TABLE
M0
0
0
0
0
1
1
M1
0
0
1
1
0
1
A0
0
1
0
1
X
X
TWO-CHANNEL/FOUR-CHANNEL OPERATION
Two Channel
Two Channel
Two Channel
Two Channel
Four Channel
Four Channel
DATA ON SERIAL OUTPUTS
A and B
A and B
A Only
A Only
A and B
A Only
CHANNELS CONVERTED
A0, B0
A1, B1
A0, B0
A1, B1
Sequential
Sequential
X = Don’t Care.
BASIC CIRCUIT CONFIGURATION
ADS7861
1
2
3
4
5
6
7
8
9
DGND
CH B1+
CH B1–
CH B0+
CH B0–
CH A1+
CH A1–
CH A0+
CH A0–
+V
D
24
SERIAL DATA A 23
SERIAL DATA B 22
BUSY 21
CLOCK 20
CS 19
RD 18
CONVST 17
A0 16
M0 15
M1 14
+V
A
13
+
+
BUSY Output
Clock Input
Chip Select
Read Input
Conversion Start
A0 Address Select
M0 Address Select
M1 Address Select
+5V Analog Supply
0.1µF
10 REF
IN
11 REF
OUT
12 AGND
10µF
®
ADS7861
4
ETC [ ETC ]
