TL441-EP_14 Datasheet, PDF (4/19 Pages) Texas Instruments – LOGARITHMIC AMPLIFIER

TL441ĆEP
LOGARITHMIC AMPLIFIER
SGLS268 − OCTOBER 2004
ELECTRICAL CHARACTERISTICS OVER OPERATING FREE-AIR TEMPERATURE RANGE,
V_CC± = ±6 V (unless otherwise noted)
PARAMETER
TEST FIGURE
MIN MAX UNIT
Differential output offset voltage
1
±125 mV
Quiescent output voltage
2
5.3 5.85 V
DC scale factor (differential output) each 30-dB stage, −35 dBV to −5 dBV
3
6
11 mV/dB
DC error at −20 dBV (midpoint of −35 dBV to −5 dBV range)
Supply current from VCC+
Supply current from VCC−
Power dissipation
TA = −55°C
TA = 125°C
4
3
dB
3
2
10
31 mA
2
−4.5 −15 mA
2
87 276 mW
PARAMETER MEASUREMENT INFORMATION
VCC+ VCC−
CA2 CA2_′ VCC ₊ VCC _−
A1
Y
A2
Y
B1
Z
B2
Z
CB2 CB2_′ GND
DVM
CA2 CA2_′ VCC+ VCC−
A1
Y
A2
Y
B1
Z
B2
Z
CB2 CB2_′ GND
ICC ₊
VCC+
VCC−
ICC _−
VO
Figure 1
PD = VCC+ • ICC+ + VCC− • ICC−
Figure 2
4
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