Datasheet

MAX4206
Precision Transimpedance Logarithmic
Amplifier with Over 5 Decades of Dynamic Range
16 ______________________________________________________________________________________
V
EE
GND
REFVOUT
CMVIN
REFIOUT
CMVOUT
REFISET
V
CC
SCALE
LOGV2
OSADJ
LOGV1
REFIIN
FIBER CABLE
APD
+2.7V TO +76V
2.2
µ
H
2.2
µ
F0.22
µ
F
BIAS
REF
CLAMP
OUT
TIA
GND
TO LIMITING
AMPLIFIER
HIGH-SPEED DATA PATH
0.1
µ
F
100pF
V
CC
5M
Ω
100pF
100
Ω
100
Ω
OUTPUT
PHOTODIODE BIAS
0.1
µ
F
I
APD
/10
I
APD
0.1
µ
F
MAX4206
MAX4007
Figure 8. Logarithmic Current-Sensing Amplifier with Sourcing Input