
10
LTC1658
A 14-Bit Analog Input/Output Channel for a PC
DOUT
10
11
1
2
3
4
8
7
6
5
VCC
VOUT
REF
GND
CLK
DIN
CS/LD
DOUT
U2
LTC1658
ANALOG
OUTPUT
2
4
3
5
1
6
Q
CLR
Q
D
PR
CK
U3
1/2 74HC74
5V
3
SELECT
TX
RTS
DTR
CTS
41
2
6
2
4
U4
LT1021-5
12
10
11
9
13
8
Q
CLR
Q
D
PR
CK
U3
1/2 74HC74
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VCC
VSS
BUSY
CONVST
RD
SHDN
DGND
DOUT
AIN+
AIN–
VREF
VREFCOMP
AGND
EXTCLKIN
SCLK
CLKOUT
U1
LTC1417
510
510
510
510
10
F
1
F
1
F
D1
DIFFERENTIAL
INPUT
D2
D6
D5
D3
D4
1
F
51k
9
DIN
85
6
51k
SCLK
13
12
51k
C4
150
F
C3
0.1
F
5V
C5
47
F
1658 TA05
5V
TYPICAL APPLICATIO S
U