
14
LTC1588/LTC1589/LTC1592
1588992fa
APPLICATIO S I FOR ATIO
WU
UU
Figure 3. Isolated Power Supplies for the Circuit of Figure 4
3
13
11
R1
1M
R9
10k
R2
16.9k
R3
15k
T1
CTX02-16030
D1
MMBD914
D2
MMBD914
D3
MMBD914
C3
22
F
25V
CER
24
14
5
3
2
5
1
3
D4
MMBD914
C22
2.2nF
1kV
E1
VIN
5V
±5%
E5
SHDN
E7
SYNC
E6
GND
C1
4.7
F
6.3V
C2
820pF
5
6
7
14
4
RSL
PGND
GND
COLB
RT
10
1
16
CT
SYNC
COLA
SHDN
VIN
LT3439
C7
0.01
F
2.2
F
5V
C8
0.01
F
C4
22
F
25V
CER
R10
10k
R4
442k
R7
442k
R5
49.9k
12V
AGND
–12V
1588992 F03
C5
33
F
25V
TANT
R6
49.9k
IN
OUT
BYP
LT1761
GND ADJ
IN
OUT
BYP
LT1964
GND ADJ
+
C6
33
F
25V
TANT
+
LT1121-5
VIN
–
+
1/2 LT1469
–
+
–
+
1/2 LT1469
12-/14-/16-BIT DAC WITH SPAN ADJUST
LTC1588/LTC1589/LTC1592
RCOM
1
R1
2
VCC
0.1
F
9
R2
R1
16
ROFS
3
7
5
VREF
5V
6
REF
15
RFB
IOUT1
VOUT
4
6
1
23
IOUT2
2
3
*SCHOTTKY BARRIER DIODE
**FOR MULTIPLYING APPLICATIONS C3 = 15pF
ZETEX*
BAT54S
LT1001
5V
5
1
2
3
IOUT2
AGND
GND
CLR
CS/LD
SCK
SDI
SDO
6
7
8
14
13
12
11
10
C3**
150pF
C2
15pF
1588992 F02
15V
–15V
8
4
0.1
F
0.1
F
1000pF
ALTERNATE AMPLIFIER FOR OPTIMUM SETTLING TIME PERFORMANCE
6
1
23
6
–
+
LT1468
3
ZETEX
BAT54S
2
200
200
IOUT2
Figure 2. Basic Connections for SoftSpan VOUT DAC with Two Optional Circuits
for Driving IOUT2 from AGND with a Force/Sense Amplifier