16
LTC1588/LTC1589/LTC1592
1588992fa
LT/TP 0503 1K REV A • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 2001
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
PART NUMBER DESCRIPTION COMMENTS
LTC1591/LTC1597 Parallel 14-/16-Bit Current Output DACs On-Chip 4-Quadrant Resistors
LTC1595/LTC1596 Serial 16-Bit Current Output DACs Low Glitch, ±1LSB Maximum INL, DNL
LTC1599 2-Byte, 16-Bit Current Output DAC On-Chip 4-Quadrant Resistors
LTC1821 Parallel 16-Bit Voltage Outupt DAC Precision 16-Bit Settling in 2µs for 10V Step
LTC2600/LTC2610 Octal 16-/14-/12-Bit DACs Single Supply, µPower in Narrow SSOP16
LTC2620
RELATED PARTS
APPLICATIO S I FOR ATIO
WUUU
–
+
LT1468
–12V
12V
–
+
LT1468
12-/14-/16-BIT DAC WITH SPAN ADJUST
LTC1588/LTC1589/LTC1592
R
COM
1
R1
2
V
CC
0.1µF
9
R2
R2
R1
16
R
OFS
3
6
10µF
0.1µF
0.1µF
10µF
7
4
2
5V REF
4
2
8
12V
3
REF
15
R
FB
I
OUT1
V
OUT
4
5V
5
6
6
2
3
I
OUT2
AGND
GND
CLR
CS/LD
SCK
SDI
SDO
7
8
14
13
12
11
10
150pF
15pF
1588992 F04
12V
–12V
7
4
0.1µF
AGND
AGND
0.1µF
10µF
10µF
10µF
+
LT1027-5
A
B
C
D
CLK
ENP
ENT
LD
CLR
14
13
12
11
3
4
5
6
2
7
10
9
1
QA
QB
QC
QD
RCO
GND
5V
15
ISOLATED SDI
ISOLATED SCK
OPTIONAL CIRCUIT FOR 2-WIRE INTERFACE.
FOR A 3-WIRE INTERFACE (SPI), ADD A 3RD
OPTOISOLATOR TO DRIVE CS/LD WITH THE
WAVEFORMS OF FIGURE 1
ISOLATED
CS/LD
74HC161
5
6
2
V
CC
SCK
3
R1
7.5k
7
8
5V
HCPL2300
5
6
2
V
CC
SDI
TO
µCONTROLLER
3
R2
7.5k
7
8
5V
HCPL2300
Figure 4. Optically Isolated 16-Bit SoftSpan System
C3 C2 C1 C0 X D2 D1 D0
SCK
SDI
CS/LD
1588992 F05
Figure 5. Timing Diagram for the Circuit of Figure 4
