LTC1589 Linear Technology Corporation, LTC1589 Datasheet - Page 16

• Manufacturer Part Number: LTC1589
• Description: Ltc1589 - 12-/14-/16-bit Softspan Dacs With Programmable Output Range
• Manufacturer: Linear Technology Corporation

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