1
2
3
4
5
6
A
B
C
D
6
5
4
3
2
1
D
C
B
A
ti
12500 TI Boulevard. Dallas, Texas 75243
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17-Nov-2003
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Revision History
REV
ECN Number
Approved
Block Diagram.Sch
DOCUMENTCONTROL #
1
3
5
7
9
11
13
17
19
2
4
6
8
10
12
14
16
18
20
15
J3/P3
HEADER 10 X 2
AIN
AIN_N
AINN
VCM
AINP
Analog Input
EXT_CLK
AINP
AINN
B00
B01
B02
B03
B04
B15
B05
B06
B07
B08
B09
B10
B11
B12
B13
B14
VREFN
VMID
VREFP
B_OTR
B_DRDY
DRATE
REFEN*
RD*
BDSEL*
RESET*
PD*
SEL_FIFO(0)
SEL_FIFO(1)
SEL_FIFO(2)
CLK
ADS1605_CS*
ADS1605_06
+12v
VCM
VMID
VREFN
VREFP
Voltage Reference
D09
D08
D11
D10
D12
D13
D15
D14
B00
B01
B02
B03
B04
B05
B06
B07
B08
B09
B10
B11
B12
B13
B14
B15
B_OTR
B_DRDY
OTR
DRDY
D00
D01
D02
D03
D04
D05
D06
D07
Data bus buffers
REFEN*
PD*
RESET*
BDSEL*
RD*
SEL_FIFO(2)
SEL_FIFO(1)
SEL_FIFO(0)
DRATE
CLK
ADS1605_CS*
Interface (2 of 2)
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
J2/P2
40-PIN HEADER
Power
1
2
3
4
5
J5
IO_GND
IO_GND
1
2
J7
DRDY
OTR
HOST_A2
HOST_A3
DRDY_OUT
HOST_RD*
HOST_CSa*
HOST_WR*
Interface (1 of 2)
IO_GND
1
3
5
7
9
11
13
17
19
2
4
6
8
10
12
14
16
18
20
15
J1 / P1
W3
W4
W2
VCOM
REF-
REF+
REF-
REF+
VCOM
R16
NI
R15
NI
AGND
AGND
R5
0R
R11
0R
ADS1605 / 06 Block Diagram
Joe Purvis
Joe Purvis
6455110
A
1
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