TL441CN Datasheet, PDF (3/20 Pages) Texas Instruments – LOGARITHMIC AMPLIFIER

TL441
LOGARITHMIC AMPLIFIER
SLVS328 – OCTOBER 2000
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)^†
Supply voltages (see Note 1): V_CC+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 V
V_{CC –} . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 8 V
Input voltage (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 V
Output sink current (any one output) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA
Package thermal impedance, θ_JA (see Notes 2 and 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67°C/W
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
† _{Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and}
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. All voltages, except differential out voltages, are with respect to network ground terminal.
2. Maximum power dissipation is a function of TJ(max), θ_JA, and TA. The maximum allowable power dissipation at any allowable
ambient temperature is PD = (TJ(max) – TA)/θ_JA. Operating at the absolute maximum TJ of 150°C can affect reliability.
3. The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions
Peak-to-peak input voltage for each 30-dB stage
Operating free-air temperature, TA
electrical characteristics, V_CC± = ±6 V, T_A = 25°C
PARAMETER
Differential output offset voltage
Quiescent output voltage
DC scale factor (differential output), each 3-dB stage, – 35 dBV to – 5 dBV
AC scale factor (differential output)
DC error at – 20 dBV (midpoint of – 35 dBV to – 5 dBV range)
Input impedance
Output impedance
Rise time, 10% to 90% points, CL = 24 pF
Supply current from VCC+
Supply current from VCC _–
Power dissipation
MIN MAX UNIT
0.01
1V
0
70 °C
TEST
FIGURE
1
2
3
3
4
2
2
2
MIN TYP MAX UNIT
±40
mV
5.45 5.6 5.85 V
6
8
12 mV/dB
8
mV/dB
1
dB
500
Ω
200
Ω
20
30 ns
14.5 18.5
23 mA
– 6 – 8.5 – 10.5 mA
123 162
201 mW
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