PHOTODIODE
PIN photodiode amplifier
C4890
Wide bandwidth amplifier (1.5 GHz, 20 dB)
C4890 wide-band amplifier, when connected to a high-speed PIN photodiode (S5791, S5972, S5973, etc.) converts optical signals at a maximum
of 1.5 GHz into voltage outputs with exceptionally low distortion and 20 dB gain.
C4890 can also be combined with other types of PIN photodiodes and APDs (avalanche photodiodes) to serve as a high-frequency amplifier for
optical measurements in a wide range of fields including industry and research applications.
Features
Applications
l
Wide bandwidth, high gain, flat gain spectrum
l
Flat, low group delay characteristics and low noise
l
Input/output impedance: 50
鈩?/div>
l
Small size, light weight, low price
l
Single power supply operation (+12 V)
l
High frequency amplifier for measurement
l
PIN photodiode evaluation
s
Absolute maximum ratings
Parameter
Supply voltage
Input voltage
Operating temperature
Storage temperature
Condition
Continuation RF input
DC
Value
+13.5
+15
+1.25
0 to +60
-10 to +70
Unit
V
dBm
V
擄C
擄C
s
Electrical characteristics (Ta=25 擄C, Vcc=12 V, Input/output is terminated with 50
鈩?/div>
load.)
Parameter
High band
Cut-off frequency
(-3 dB)
Low band
Gain
Gain deviation within bandwidth
Group delay time
Input
VSWR
Output
1 dB compression point
Rise time
Noise figure
Current consumption
Condition
Min.
1.0
-
18
-
-
-
-
-
-
-
-
Typ.
1.5
5
20
鹵1.0
700
1.1
1.5
7
240
8
45
f=1.0 GHz
f=10 MHz to 1.0 GHz
f=1.0 GHz
Max.
-
10
-
-
-
-
-
-
-
-
-
Unit
GHz
MHz
dB
dB
ps
dB
dB
dBm
ps
dB
mA
1
2
