TYPICAL APPLICATIONS
RAIL-TO-RAIL VOLTAGE FOLLOWER/BUFFER
RAIL-TO-RAIL WAVEFORM
+5V
0V
~
Z
IN
= 10
12
Ω
5V
0.1µF
INPUT
-
OUTPUT
V
IN
0≤ V
IN
≤
5V
+
1/2 ALD2701
* See Rail to Rail Waveform
+5V
OUTPUT
0V
Performance waveforms.
Upper trace is the output of a
Wien Bridge Oscillator. Lower
trace is the output of Rail-to-Rail
voltage follower.
HIGH INPUT IMPEDANCE RAIL-TO-RAIL
PRECISION DC SUMMING AMPLIFIER
+5V
RAIL-TO-RAIL WINDOW COMPARATOR
8
1/2 ALD2701
1
1/4 74 C00
V+ = +2.5V
V
1
V
2
10M
100K
V
REF (HIGH)
3
2
+
-
0.1µF
0.1µF
1/2 ALD2701
V
OUT
V
IN
5
10M
10M
10M
V
3
V
4
10M
V- = - 2.5V
10M
V
OUT
= V
1
+ V
2
- V
3
- V
4
R
IN
= 10MΩ Accuracy limited by resistor tolerances and input offset voltage
V
OUT (LOW)
FOR V
REF (LOW)
< V
IN
< V
REF(HIGH)
WIEN BRIDGE OSCILLATOR (RAIL-TO-RAIL)
SINE WAVE GENERATOR
+2.5V
V
OUT
1/2 ALD2701
-2.5V
.01µF
10K
10K
C = .01µF
R = 10K
~
f=
~
1
= 1.6KHZ
2πRC
*See Rail to Rail Waveform
ALD2701A/ALD2701B
ALD2701
+
-
V
OUT
+
7
100K
V
REF (LOW)
6
-
V-
≤
V
IN
≤
V+
V-
≤
V
OUT
≤
V+
4
1/2 ALD2701
PHOTO DETECTOR CURRENT TO
VOLTAGE CONVERTER
R
F
= 5M
I
PHOTODIODE
+
-
10K
-
+
+2.5V
V
OUT
= 1 X R
F
R
L
= 100K
-2.5V
1/2 ALD2701
LOW VOLTAGE INSTRUMENTATION AMPLIFIER
V+
1M
0.1µF
100K
500K
+
-
V-
0.1µF
1/2 ALD2701
f max = 20KHz
-40mV
≤
V
IN
≤
40mV
V+
0.1µF
100K
V+
0.1µF
+
50K
V+ 1M
V
OUT
-
V-
0.1µF
ALD1701
V-
-
1M
100K
100K
1M
+
V-
0.1µF
1/2 ALD2701
GAIN = 25 V-
≤
V
OUT
≤
V+ All resistors are 1%
V+ = +1.0V V- = -1.0V Short Circuit Input Current 1µA
Advanced Linear Devices
6
ALD [ ADVANCED LINEAR DEVICES ]
