Datasheet

TL441
LOGARITHMIC AMPLIFIER
SLVS328 – OCTOBER 2000
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
C
A2
C
A2′
V
CC+
V
CC–
Y
Y
Z
Z
C
B2
GND
A1
A2
B1
B2
DVM
18 mV
100 mV
560 mV
DC
Power
Supply
V
CC+
V
CC–
Scale Factor
V
out(560 mV)
–V
out(18mV)
mV
30 dBV
Error
Vout(100 mV)
–0.5 V
out(560 mV)
–0.5 V
out(18 mV)
Scale Factor
C
B2′
Figure 3
C
A2
C
A2′
V
CC+
V
CC–
Y
Y
Z
Z
C
B2
C
B2′
GND
A1
A2
B1
B2
V
CC+
V
CC–
1000 pFC
I
C
L
C
L
100 mV
0 mV
Atten
Pulse
Generator
50 Ω
Tektronix
Sampling Scope
With Digital
Readout or
Equivalent
NOTES: A. The input pulse has the following characteristics: t
w
= 200 ns, t
r
≤ 2 ns, t
f
≤ 2 ns, PRR ≤ 10 MHz.
B. Capacitor C
I
consists of three capacitors in parallel: 1 µF, 0.1 µF, and 0.01 µF.
C. C
L
includes probe and jig capacitance.
Figure 4