ADS7864YB Burr-Brown Corporation, ADS7864YB Datasheet - Page 4

• Manufacturer Part Number: ADS7864YB
• Description: 500kHz/ 12-Bit/ 6-Channel Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTER
• Manufacturer: Burr-Brown Corporation

PIN DESCRIPTIONS
PIN CONFIGURATION
PIN
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Top View
1
2
3
4
5
6
7
8
9
CLOCK
NAME
AGND
DGND
BUSY
DB15
DB14
DB13
DB12
DB11
DB10
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
+V
+V
RD
CS
A
D
®
ADS7864
DESCRIPTION
Analog Power Supply. Normally +5V.
Analog Ground
Data Valid Output: “1” for data valid; “0” for invalid
data.
Channel Address Output Pin (see channel truth
table)
Channel Address Output Pin (see channel truth
table)
Channel Address Output Pin (see channel truth
table)
Data Bit 11 - MSB
Data Bit 10
Data Bit 9
Data Bit 8
Data Bit 7
Data Bit 6
Data Bit 5
Data Bit 4
Data Bit 3
Data Bit 2
Data Bit 1
Data Bit 0 - LSB
Low when a conversion is in progress.
Digital Ground
Digital Power Supply, +5VDC
An external clock must be applied to the CLOCK
input.
RD Input. Enables the parallel output when used in
conjunction with chip select.
Chip Select
AGND
DB15
DB14
DB13
DB12
DB11
DB10
DB9
DB8
DB7
DB6
+V
A
10
11
12
1
2
3
4
5
6
7
8
9
48
13
47
14
46
15
45
16
44
17
ADS7864
43
18
4
42
19
PIN
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
41
20
REFOUT
40
21
CH A1+
CH A1–
CH B1+
CH B1–
CH C1+
CH C1–
CH C0–
CH C0+
CH B0–
CH B0+
CH A0–
CH A0+
HOLDC
HOLDB
HOLDA
RESET
NAME
REFIN
AGND
BYTE
+V
A2
A1
A0
A
39
22
38
23
DESCRIPTION
Places Channels C0 and C1 in hold mode.
Places Channels B0 and B1 in hold mode.
Places Channels A0 and A1 in hold mode.
2 x 8 Output Capability. Active HIGH
A2 Address/Mode Select Pin (see Address/Mode Truth
table).
A1 Address/Mode Select Pin (see Address/Mode Truth
Table).
A0 Address/Mode Select Pin (see Address/Mode Truth
Table).
Reset Pin
Reference Out
Reference In
Analog Ground
Analog Power Supply. Normally +5V.
Noninverting Input Channel A1
Inverting Input Channel A1
Noninverting Input Channel B1
Inverting Input Channel B1
Noninverting Input Channel C1
Inverting Input Channel C1
Inverting Input Channel C0
Noninverting Input Channel C0
Inverting Input Channel B0
Noninverting Input Channel B0
Inverting Input Channel A0
Noninverting Input Channel A0
37
24
36
35
34
33
32
31
30
29
28
27
26
25
+V
AGND
REFIN
REFOUT
RESET
A0
A1
A2
BYTE
HOLDA
HOLDB
HOLDC
A