ALD4706A ALD [Advanced Linear Devices], ALD4706A Datasheet - Page 6

• Manufacturer Part Number: ALD4706A
• Description: DUAL ULTRA MICROPOWER RAIL-TO-RAIL CMOS OPERATIONAL AMPLIFIER
• Manufacturer: ALD [Advanced Linear Devices]

ALD4706A/ALD4706B
ALD4706
0V ≤ V
-18mA ≤ I
V
V
IN
IN
V
IN
V + -4V ≤ V
0 ≤ I
1.4µF
IN
≤ 4V
LOAD
LOAD
V +
20K
V +
TWO STAGE HIGH GAIN AMPLIFIER
2K
20K
220Ω
225Ω
≤ 7mA
≤ 0
IN
≤ V +
1K
2K
+
+
-
-
1/4 ALD4706
+
1/4 ALD4706
-
V TO I AMPLIFIER
1/4 ALD 4706
NOTES:
a) R
b) R
1V ≤ V + ≤ 12V
V + = 5V
V + = 5V
20K
LOAD
LOAD
1) GAIN = 20 First Stage
2) GAIN = 25 Second Stage
3) 500Hz ≤ Operating Frequency ≤ 10KHz
connected to V +
connected to GND
HIGH INPUT IMPEDANCE RAIL-TO-RAIL PRECISION
800Ω
V
V
V
V
R
1
4
2
3
G
G
IN
= 10MΩ Accuracy limited by resistor tolerances and input offset voltage
S
S
D
D
1/4 ALD4706
-
+
V +
R
10M
10M
10M
10M
S
= 50Ω
20K
TYPICAL APPLICATIONS
V
G
G
Advanced Linear Devices
OUT
DC SUMMING AMPLIFIER
S
S
D
D
V +
R
20K
L
SUB
SUB
= V
R
R
R
LOAD
S
LOAD
1
= 20Ω
ALD1101
ALD1102
+ V
= 220Ω
= 560Ω
2
10M
- V
C L
1nF
3
V + = +2.5V
- V
V- = - 2.5V
+
-
4
+5V
V
IN
RAIL-TO-RAIL VOLTAGE FOLLOWER/BUFFER
10M
PHOTODIODE
100K
100K
0.1µF
0.1µF
RAIL-TO-RAIL WINDOW COMPARATOR
R
0≤ V
IN
1/4 ALD4706
PHOTO DETECTOR CURRENT TO
~
= 10
IN
V
V
V
V- ≤ V
V
V- ≤ V
≤ 5V
IN
OUT (LOW)
REF (HIGH)
REF (LOW)
13
Ω
VOLTAGE CONVERTER
I
IN
OUT
V
≤ V +
OUT
≤ V +
for V
3
2
5
6
+
-
+
+
-
-
REF (LOW)
+
-
8
5V
1/4 ALD4706
R
4
1/4 ALD4706
1/4 ALD4706
F
= 5M
< V
1/4 ALD4706
+2.5V
-2.5V
7
1
IN
< V
0.1µF
1/4 74 C00
REF (HIGH)
R
V
L
OUT
= 10K
= 1 X R
V
OUT
6 of 9
F
V
OUT