Datasheet

TL03x, TL03xA
ENHANCED-JFET LOW-POWER LOW-OFFSET
OPERATIONAL AMPLIFIERS
SLOS180C − FEBRUARY 1997 − REVISED DECEMBER 2001
46
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
−
+
R5
3.3 kΩ
2N3904
TL03xA
1 MΩR2
R1
5 kΩ
R3 80 kΩ
R4 5 kΩ
V
I
Signal Common
1N4148
R
S
100 Ω
R
L
50 Ω
I
O
5 V Ref
V
CC+
= 10 V
V
EE
= −5 V
100 kΩ
R7
R6
TL431
100 kΩ
Figure 66. Three-Wire 4-mA to 20-mA Current Loop
100 Ω
−
+
3
2
4
8
5
LTC1044
10 μF
10 μF
R5
3.3 kΩ
2N3904
TL03xA
1 MΩR2
R1
5 kΩ
R3 80 kΩ
R4 5 kΩ
V
I
Signal Common
1N4148
R
S
R
L
50 Ω
I
O
LT1019-5
GND
OUT
IN
5 V Ref
V
CC+
= 10 V
Figure 67. Two-Wire 4-mA to 20-mA Current Loop