MCP3918 Datasheet, PDF(74/88 Page) Microchip Technology – 3V Single-Channel Analog Front End

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MCP3918 Datasheet, PDF (74/88 Pages) Microchip Technology – 3V Single-Channel Analog Front End

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MCP3918

bit 15-13

bit 12-8

bit 7-0

OSR<2:0> Oversampling Ratio for delta-sigma A/D Conversion (ALL CHANNELS, fD/fS)

111 = 4096 (fD = 244 sps for MCLK = 4 MHz, fS = AMCLK = 1 MHz)

110 = 2048 (fD = 488 sps for MCLK = 4 MHz, fS = AMCLK = 1 MHz)

101 = 1024 (fD = 976 sps for MCLK = 4 MHz, fS = AMCLK = 1 MHz)

100 = 512 (fD = 1.953 ksps for MCLK = 4 MHz, fS = AMCLK = 1 MHz)

011 = 256 (fD = 3.90625 ksps for MCLK = 4 MHz, fS = AMCLK = 1 MHz) (Default)

010 = 128 (fD = 7.8125 ksps for MCLK = 4 MHz, fS = AMCLK = 1 MHz)

001 = 64 (fD = 15.625 ksps for MCLK = 4 MHz, fS = AMCLK = 1 MHz)

000 = 32 (fD = 31.25 ksps for MCLK = 4 MHz, fS = AMCLK = 1 MHz)

Unimplemented: Read as â0â

VREFCAL<7:0>:

Internal Voltage Temperature coefficient VREFCAL<7:0> value. (See

Section 5.6.3 âTemperature Compensation (VREFCAL<7:0>)â for complete

description).

DS20005287A-page 74

ï£ 2014 Microchip Technology Inc.

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