LTC1655CS8#PBF Linear Technology, LTC1655CS8#PBF Datasheet - Page 13
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LTC1655CS8#PBF
Manufacturer Part Number
LTC1655CS8#PBF
Description
IC D/A CONV 16BIT R-R 8-SOIC
Manufacturer
Linear Technology
Datasheet
1.LTC1655CN8PBF.pdf
(16 pages)
Specifications of LTC1655CS8#PBF
Settling Time
20µs
Number Of Bits
16
Data Interface
Serial
Number Of Converters
1
Voltage Supply Source
Single Supply
Power Dissipation (max)
2.6mW
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
TYPICAL APPLICATIONS
This circuit shows a digitally programmable current source
from an external voltage source using an external op amp,
an LT1218 and an NPN transistor (2N3440). Any digital
word from 0 to 65535 is loaded into the LTC1655 and its
output correspondingly swings from 0V to 4.096V. This
voltage will be forced across the resistor R
P
1
2
3
U
CLK
D
CS/LD
IN
LTC1655
GND
Digitally Programmable Current Source
V
5V
CC
8
5
A
. If R
V
OUT
A
7
is
0.1 F
chosen to be 412 , the output current will range from
0mA at zero scale to 10mA at full scale. The minimum
voltage for V
Q1’s V
voltage source can be 5V.
3
2
–
+
LT1218
CESAT
7
4
S
voltage. With a load resistor of 50 , the
6
5V < V
FOR R
is determined by the load resistor R
S
L
< 100V
Q1
2N3440
R
412
1%
R
50
A
L
LTC1655/LTC1655L
I
1655/55L TA04
OUT
=
(D
(65536)(R
0mA TO 10mA
IN
)(4.096)
A
)
13
L
and