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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LM4995 датащи(PDF) 5 Page - Texas Instruments |
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LM4995 датащи(HTML) 5 Page - Texas Instruments |
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5 / 22 page  LM4995, LM4995TMBD www.ti.com SNAS329G – APRIL 2006 – REVISED APRIL 2013 ELECTRICAL CHARACTERISTICS VDD = 3.0V (1) (2) The following specifications apply for the circuit shown in Figure 1, unless otherwise specified. Limits apply for TA = 25°C. LM4995 Units Symbol Parameter Conditions (Limits) Typical(3) Limit(4)(5) VIN = 0V, Io = 0A, No Load 1.3 mA IDD Quiescent Power Supply Current VIN = 0V, Io = 0A, 8Ω Load 1.6 mA ISD Shutdown Current VSD = VGND 0.01 µA VOS Output Offset Voltage No Load 5 mV Po Output Power THD+N = 1% (max); f = 1 kHz 400 mW TWU Wake-up time 110 ms THD+N Total Harmonic Distortion + Noise Po = 250mWRMS; f = 1kHz 0.07 % Vripple = 200mV sine p-p 74 (f = 217Hz) PSRR Power Supply Rejection Ratio dB Input terminated to GND 75 (f = 1kHz) VSDIH Shutdown Voltage Input High 1.2 V VSDIL Shutdown Voltage Input Low 1 V (1) All voltages are measured with respect to the ground pin, unless otherwise specified. (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 ensure specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not ensure for parameters where no limit is given, however, the typical value is a good indication of device performance. (3) Typicals are measured at 25°C and represent the parametric norm. (4) Limits are specified to AOQL (Average Outgoing Quality Level). (5) Datasheet min/max specification limits are specified by design, test, or statistical analysis. EXTERNAL COMPONENTS DESCRIPTION (Figure 1) Components Functional Description 1. Ri Inverting input resistance which sets the closed-loop gain in conjunction with Rf. This resistor also forms a high pass filter with Ci at fC= 1/(2π RiCi). 2. Ci Input coupling capacitor which blocks the DC voltage at the amplifiers input terminals. Also creates a highpass filter with Ri at fC = 1/(2π RiCi). Refer to the section, PROPER SELECTION OF EXTERNAL COMPONENTS, for an explanation of how to determine the value of Ci. 3. Rf Feedback resistance which sets the closed-loop gain in conjunction with Ri. 4. CS Supply bypass capacitor which provides power supply filtering. Refer to the POWER SUPPLY BYPASSING section for information concerning proper placement and selection of the supply bypass capacitor. 5. CB Bypass pin capacitor which provides half-supply filtering. Refer to the section, PROPER SELECTION OF EXTERNAL COMPONENTS, for information concerning proper placement and selection of CB. Copyright © 2006–2013, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM4995 LM4995TMBD |
Аналогичный номер детали - LM4995_15 |
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Аналогичное описание - LM4995_15 |
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