9
LTC1448
TYPICAL APPLICATIONS
U
–
+
LTC1448
V
OUT
B PIN NOT SHOWN FOR CLARITY
LT1077
5V
GND
µP
1448 TA05
D
IN
R
A
510Ω
5%
R
L
V
OUT A
CLK
Q1
2N3440
CS/LD
V
S
+ 6V TO 100V
FOR R
L
≤ 50Ω
0.1µF
V
CC
REF
I
OUT
= ≈ 0mA TO 10mA
D
IN
• 5
4096 • R
A
Digitally Programmable Current Source
