MP3275 Datasheet, PDF (3/16 Pages) Exar Corporation – Fault Protected 16 Channel, 12-Bit Data Acquisition Subsystem

PIN OUT DEFINITIONS
PIN NO. NAME
DESCRIPTION
1
V_EE
– Analog Supply. –4.75 To – 16.5
2
A_IN12
Channel 12 Analog Input, 1100
3
A_IN13
Channel 13 Analog Input, 1101
4
A_IN14
Channel 14 Analog Input, 1110
5
A_IN15
Channel 15 Analog Input, 1111
6
GNDREF + Input To Mux / Instrumentation Amp
7
AGND
A/D Section Analog Ground
8
REF
Reference Output
9
AGND₃
Reference Analog Ground
10
DGND
Digital Logic And Output Ground
11
SDC
Serial Data Clock
12
N/C
No Connection
13
N/C
No Connection
14
N/C
No Connection
15
N/C
No Connection
16
SDO
Serial Data Out
17
STS
Conversion Status, Converting=1
18
STL
Input Settling Period State = 1
19
DGND
Digital Gnd, Low Current
20
RD
Enable Serial Data Out
21
CS
Chip Select
22
WR
Input Address And Conversion Control
MP3275
PIN NO. NAME
23
ADEN
24
AB3
25
AB2
26
AB1
27
AB0
28
V_DD
29
V_CC
30
A_IN0
31
A_IN1
32
A_IN2
33
A_IN3
34
N/C
35
A_IN4
36
A_IN5
37
A_IN6
38
A_IN7
39
AGND₂
40
A_IN8
41
N/C
42
A_IN9
43
A_IN10
44
A_IN11
DESCRIPTION
Address Update Enable=1, Ignore=0
Input Address Bit 3, (MSB)
Input Address Bit 2
Input Address Bit 1
Input Address Bit 0, (LSB)
Digital Logic & Output Supply, +4.75 to
+ 5.25 Volts
Analog + Supply, +11.4 to + 16.5 Volts
Channel 0 Analog Input, 0000
Channel 1 Analog Input, 0001
Channel 2 Analog Input, 0010
Channel 3 Analog Input, 0011
No Connection
Channel 4 Analog Input, 0100
Channel 5 Analog Input, 0101
Channel 6 Analog Input, 0110
Channel 7 Analog Input, 0111
Agnd For Input Mux Section
Channel 7 Analog Input, 1000
No Connection
Channel 9 Analog Input, 1001
Channel 10 Analog Input, 1010
Channel 11 Analog Input, 1011
Rev. 4.00
3