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TL441AM Datasheet(PDF) 3 Page - Texas Instruments |
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TL441AM Datasheet(HTML) 3 Page - Texas Instruments |
3 / 15 page TL441AM LOGARITHMIC AMPLIFIER SLFS038 – JUNE 1976 – REVISED FEBRUARY 1989 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics, VCC± = ±6 V, TA = 25°C PARAMETER TEST FIGURE MIN TYP MAX UNIT Differential output offset voltage 1 ± 25 ± 70 mV Quiescent output voltage 2 5.45 5.6 5.85 V DC scale factor (differential output), each 3-dB stage, – 35 dBV to – 5 dBV 3 7 8 11 mV/dB AC scale factor (differential output) 8 mV/dB DC error at – 20 dBV (midpoint of – 35 dBV to – 5 dBV range) 3 1 2.6 dB Input impedance 500 Ω Output impedance 200 Ω Rise time, 10% to 90% points, CL = 24 pF 4 20 35 ns Supply current from VCC+ 2 14.5 18.5 23 mA Supply current from VCC – 2 – 6 – 8.5 – 10.5 mA Power dissipation 2 123 162 201 mW electrical characteristics over operating free-air temperature range, VCC± = ±6 V (unless otherwise noted) PARAMETER TEST FIGURE MIN MAX UNIT Differential output offset voltage 1 ± 100 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 7 11 mV/dB DC error at 20 dBV (midpoint of 35 dBV to 5 dBV range) TA = – 55°C 3 4 dB DC error at – 20 dBV (midpoint of – 35 dBV to – 5 dBV range) TA = 125°C 3 3 dB Supply current from VCC+ 2 10 31 mA Supply current from VCC – 2 – 4.5 – 15 mA Power dissipation 2 87 276 mW PARAMETER MEASUREMENT INFORMATION Figure 1 VCC+ VCC– CA2 CA2 ′ VCC + VCC – Y Y Z Z DVM CB2 CB2 ′ GND A1 A2 B1 B2 Figure 2 CA2 CA2 ′ VCC+ VCC– Y Y Z Z CB2 CB2 ′ GND A1 A2 B1 B2 VCC+ VCC– ICC + ICC – VO PD = VCC+ • ICC+ + VCC– • ICC– |
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