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LM4875 Datasheet(PDF) 2 Page - National Semiconductor (TI) |
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LM4875 Datasheet(HTML) 2 Page - National Semiconductor (TI) |
2 / 13 page Absolute Maximum Ratings (Note 2) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage 6.0V Storage Temperature −65˚C to +150˚C Input Voltage −0.3V to V DD +0.3V Power Dissipation (Note 3) Internally Limited ESD Susceptibility (Note 4) 2000V ESD Susceptibility (Note 5) 200V Junction Temperature 150˚C Soldering Information Vapor Phase (60 sec.) 215˚C Infrared (15 sec.) 220˚C Thermal Resistanc θ JC (SOP) 35˚C/W θ JA (SOP) 150˚C/W θ JC (MSOP) 56˚C/W θ JA (MSOP) 190˚C/W Operating Ratings Temperature Range T MIN ≤ T A ≤ T MAX −40˚C ≤ T A ≤ +85˚C Supply Voltage 2.7V ≤ V DD ≤ 5.5V See AN-450 “Surface Mounting and their Effects on Product Reliability” for other methods of soldering surface mount devices. Electrical Characteristics (Notes 1, 2) The following specifications apply for V DD = 5V, unless otherwise specified. Limits apply for TA = 25˚C. Symbol Parameter Conditions LM4875 Min (Note 7) Typical (Note 6) Max (Note 7) Units V DD Supply Voltage 2.7 5.5 V I DD Quiescent Power Supply Current V IN = 0V, IO = 0A, HP Sense = 0V 4 7 mA V IN = 0V, IO - 0A, HP Sense = 5V 3.5 6 mA I SD Shutdown Current V PIN4 ≤ 0.3V 0.7 µA V OS Output Offset Voltage V IN = 0V 5 50 mV P O Output Power THD = 1% (max), HP Sense < 0.8V, f = 1kHz, R L =8 Ω 500 750 mW THD = 10% (max), HP Sense < 0.8V, f = 1kHz, R L =8 Ω 1.0 W THD+N=1%, HP Sense > 4V, f = 1kHz, R L =32 Ω 80 mW THD = 10%, HP Sense > 4V, f = 1kHz, R L =32 Ω 110 mW THD+N Total Harmonic Distortion + Noise P O = 300 mWrms, f = 20Hz–20kHz, R L =8 Ω 0.6 % PSRR Power Supply Rejection Ratio V RIPPLE = 200mVrms, RL =8 Ω,C B = 1.0 µF, f = 1kHz 50 dB Gain RANGE Single-Ended Gain Range Gain with V PIN4 ≥ 4.0V, (80% of V DD) 18.8 20 dB Gain with V PIN4 ≤ 0.9V, (20% of V DD) −70 −72 dB V IH HP Sense High Input Voltage 4 V V IL HP Sense Low Input Voltage 0.8 V Note 1: All voltages are measured with respect to the ground pin, unless otherwise specified. Note 2: “Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur. “Operating Ratings” indicate conditions for which the device is functional, but do not guarantee specific performance limits. “Electrical Characteristics” state DC and AC electrical specifications under particular test conditions that guarantee specific performance limits. This assumes that the device operates within the Operating Ratings. Specifications are not guaranteed for parameters where no limit is given. The typical value, however, is a good indication of device performance. Note 3: The maximum power dissipation must be derated at elevated temperatures and is dictated by TJMAX, θJA, and the ambient temperature TA. The maximum allowable power dissipation is PDMAX =(TJMAX −TA)/θJA or the number given in the Absolute Maximum Ratings, whichever is lower. For the LM4875M, TJMAX = 150˚C. Note 4: Human body model, 100pF discharged through a 1.5k Ω resistor. Note 5: Machine Model, 220pF–240pF discharged through all pins. Note 6: Typicals are measured at 25˚C and represent the parametric norm. Note 7: Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level). Note 8: The quiescent power supply current depends on the offset voltage when a practical load is connected to the amplifier. www.national.com 2 |
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