ACA2601
All performance data measured using application circuit with input photodiode, as shown in Figure 16.
Figure 6: Gain Flatness To Best Fit Line over Temperature
(VCC = + 5 V, VAGC = +3.0 V)
2
1.5
1
Temperature
0.5
0
+115C
+100C
+60C
+40C
+15C
-5C
-0.5
-1
-25C
-35C
-1.5
-2
0
100
200
300
400
500
600
700
800
900
1000
Frequency (MHz)
Table 5: Gain Flatness to Best Fit Line
(VAGC = +3.0 V)
The best fit line is calculated
using the least mean squares
method:
Temp (oC)
Tilt (dB)
3.5
Flatness (dB)
115
100
60
2
3.8
1.8
1.5
1.4
1.3
1.2
1.2
1.3
y = m⋅ x + b
4.4
x⋅
y
− ∑ ∑
40
4.7
(
x⋅ y
)
∑
n
15
5
m =
2
( )
x
∑
x2 −
-5
5.2
∑
y
n
-25
-35
5.4
5.6
x
∑
∑
b =
− m⋅
n
n
n = number of points
PRELIMINARY DATA SHEET - Rev 1.4
7
01/2006
ANADIGICS [ ANADIGICS, INC ]
