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MCP3008-I/P Datasheet(PDF) 2 Page - Microchip Technology |
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MCP3008-I/P Datasheet(HTML) 2 Page - Microchip Technology |
2 / 34 page MCP3004/3008 DS21295C-page 2 © 2007 Microchip Technology Inc. 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings* VDD........................................................................7.0V All inputs and outputs w.r.t. VSS .....-0.6V to VDD +0.6V Storage temperature ..........................-65°C to +150°C Ambient temp. with power applied .....-65°C to +125°C Soldering temperature of leads (10 seconds) .. +300°C ESD protection on all pins .................................. > 4 kV *Notice: Stresses above those listed under "Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operation listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability. PIN FUNCTION TABLE Name Function VDD +2.7V to 5.5V Power Supply DGND Digital Ground AGND Analog Ground CH0-CH7 Analog Inputs CLK Serial Clock DIN Serial Data In DOUT Serial Data Out CS/SHDN Chip Select/Shutdown Input VREF Reference Voltage Input ELECTRICAL SPECIFICATIONS Electrical Characteristics: Unless otherwise noted, all parameters apply at VDD = 5V, VREF = 5V, TAMB = -40°C to +85°C, fSAMPLE = 200 ksps and fCLK = 18*fSAMPLE. Unless otherwise noted, typical values apply for VDD = 5V, TAMB = 25°C. Parameter Sym Min Typ Max Units Conditions Conversion Rate Conversion Time tCONV — — 10 clock cycles Analog Input Sample Time tSAMPLE 1.5 clock cycles Throughput Rate fSAMPLE —— 200 75 ksps ksps VDD = VREF = 5V VDD = VREF = 2.7V DC Accuracy Resolution 10 bits Integral Nonlinearity INL — ±0.5 ±1 LSB Differential Nonlinearity DNL — ±0.25 ±1 LSB No missing codes over temperature Offset Error — — ±1.5 LSB Gain Error — — ±1.0 LSB Dynamic Performance Total Harmonic Distortion — -76 dB VIN = 0.1V to 4.9V@1 kHz Signal to Noise and Distortion (SINAD) —61 dB VIN = 0.1V to 4.9V@1 kHz Spurious Free Dynamic Range — 78 dB VIN = 0.1V to 4.9V@1 kHz Reference Input Voltage Range 0.25 — VDD V Note 2 Current Drain — 100 0.001 150 3 µA µA CS = VDD = 5V Note 1: This parameter is established by characterization and not 100% tested. 2: See graphs that relate linearity performance to VREF levels. 3: Because the sample cap will eventually lose charge, effective clock rates below 10 kHz can affect linearity performance, especially at elevated temperatures. See Section 6.2, “Maintaining Minimum Clock Speed”, for more information. |
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