LTC2630
TYPICAL APPLICATION
V
LOOP
5.4V TO 80V
R
OFFSET
374k
LT3010-5
0.1%
IN
OUT
+
SHDN SENSE
GND
1µF
1µF
R
76.8k
0.1%
GAIN
V
CC
SDI
FROM
OPTO-
ISOLATED
INPUTS
LTC2630-HZ
V
SCK
OUT
+
–
1k
Q1
2N3440
LTC2054
CS/LD
3.01k
1000 F
P
10k
R
S
5V
10Ω
I
OPTO-ISOLATORS
OUT
10k
SDI
SCK
2630 F05
CS/LD
4N28
500Ω
SDI
SCK
CS/LD
Figure 5. An Optoisolated 4mA to 20mA Process Controller
RELATED PARTS
PART NUMBER
LTC1660/LTC1665
LTC1663
DESCRIPTION
Octal 10-/8-Bit V
COMMENTS
DACs in 16-Pin Narrow SSOP
V
CC
V
CC
V
CC
V
CC
= 2.7V to 5.5V, Micropower, Rail-to-Rail Output
= 2.7V to 5.5V, 60μA, Internal reference, SMBus Interface
= 2.7V to 5.5V, Micropower, Rail-to-Rail Output
OUT
Single 10-Bit V
DAC in SOT-23
OUT
LTC1664
Quad 10-Bit V
DAC in 16-Pin Narrow SSOP
OUT
2
LTC1669
Single 10-Bit V
DAC in SOT-23
= 2.7V to 5.5V, 60μA, Internal reference, I C Interface
OUT
LTC1821
Parallel 16-Bit Voltage Output DAC
Precision 16-Bit Settling in 2μs for 10V Step
LTC2600/LTC2610/LTC2620
Octal 16-/14-/12-Bit V
DACs in 16-Lead SSOP 250μA per DAC, 2.5V to 5.5V Supply Range, Rail-to-Rail Output,
OUT
SPI Serial Interface
LTC2601/LTC2611/LTC2621
LTC2602/LTC2612/LTC2622
LTC2604/LTC2614/LTC2624
LTC2605/LTC2615/LTC2625
LTC2606/LTC2616/LTC2626
LTC2609/LTC2619/LTC2629
Single 16-/14-/12-Bit V
DACs in 10-Lead DFN
300μA per DAC, 2.5V to 5.5V Supply Range, Rail-to-Rail Output,
OUT
SPI Serial Interface
Dual 16-/14-/12-Bit V
DACs in 8-Lead MSOP
300μA per DAC, 2.5V to 5.5V Supply Range, Rail-to-Rail Output,
SPI Serial Interface
OUT
Quad 16-/14-/12-Bit V
Octal 16-/14-/12-Bit V
DACs in 16-Lead SSOP 250μA per DAC, 2.5V to 5.5V Supply Range, Rail-to-Rail Output,
OUT
OUT
SPI Serial Interface
2
DACs with I C Interface 250μA per DAC, 2.7V to 5.5V Supply Range, Rail-to-Rail Output,
2
I C Interface
2
Single 16-/14-/12-Bit V
DACs with I C Interface 270μA per DAC, 2.7V to 5.5V Supply Range, Rail-to-Rail Output,
OUT
2
I C Interface
2
Quad 16-/14-/12-Bit V
DACs with I C Interface 250μA per DAC, 2.7V to 5.5V Supply Range, Rail-to-Rail Output
OUT
with Separate V Pins for Each DAC
REF
2630f
LT 0407 • PRINTED IN USA
20 LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
●
●
© LINEAR TECHNOLOGY CORPORATION 2007
(408) 432-1900 FAX: (408) 434-0507 www.linear.com
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