TYPICAL APPLICATIONS
V TO I AMPLIFIER
RAIL-TO-RAIL VOLTAGE FOLLOWER/BUFFER
+
V
R
LOAD
= 220Ω
5V
~
13
R
IN
= 10
Ω
0V ≤ V ≤ 4V
IN
0.1µF
+
V
= 5V
-18mA ≤ I
≤ 0
LOAD
-
-
D
S
D
S
ALD1101
G
G
V
OUT
20K
V
IN
+
SUB
V
IN
+
1/4 ALD4706
1/4 ALD4706
2K
0≤ V ≤ 5V
IN
R
= 20Ω
S
+
connected to V
a) R
LOAD
PHOTO DETECTOR CURRENT TO
VOLTAGE CONVERTER
R
= 560Ω
LOAD
+
V
= 5V
+
V
-
R
F
= 5M
D
S
D
S
ALD1102
G
G
2K
I
SUB
+
+2.5V
-
V
1 X R
F
OUT
=
PHOTODIODE
20K
1/4 ALD4706
V
IN
+
R
= 50Ω
S
R
L
= 10K
-2.5V
1/4 ALD4706
+
+
V
-4V ≤ V ≤ V
IN
LOAD
b) R
connected to GND
LOAD
0 ≤ I
≤ 7mA
+
V
TWO STAGE HIGH GAIN AMPLIFIER
RAIL-TO-RAIL WINDOW COMPARATOR
+5V
20K
20K
1/4 ALD4706
8
V
3
2
REF (HIGH)
+
-
100K
1/4 74 C00
1
800Ω
+
1V ≤ V ≤ 12V
-
1K
-
R
20K
V
OUT
L
V
C
L
1nF
+
IN
5
6
+
-
+
+
V
7
1/4 ALD4706
V
1/4 ALD 4706
REF (LOW)
220Ω
4
100K
V
IN
1/4 ALD4706
1.4µF
NOTES: 1) GAIN = 20 First Stage
2) GAIN = 25 Second Stage
225Ω
V
for V
< V < V
IN REF (HIGH)
3) 500Hz ≤ Operating Frequency ≤ 10KHz
OUT (LOW)
REF (LOW)
HIGH INPUT IMPEDANCE RAIL-TO-RAIL PRECISION
DC SUMMING AMPLIFIER
+
V
= +2.5V
0.1µF
10M
V
1
+
1/4 ALD4706
V
2
10M
10M
V
OUT
10M
-
0.1µF
+
V
V- ≤ V ≤ V
IN
3
4
V
+
≤ V
V- ≤ V
OUT
V- = - 2.5V
10M
10M
V
OUT
= V + V - V - V
1 2 3 4
R
IN
= 10MΩ Accuracy limited by resistor tolerances and input offset voltage
ALD4706A/ALD4706B
ALD4706
Advanced Linear Devices
6
ALD [ ADVANCED LINEAR DEVICES ]
