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MIC3003 датащи(PDF) 19 Page - Micrel Semiconductor |
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MIC3003 датащи(HTML) 19 Page - Micrel Semiconductor |
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19 / 75 page ![]() Micrel, Inc. MIC3003 November 2009 19 M9999-111209-C hbwhelp@micrel.com or (408) 955-1690 Channel ADC Resolution (bits) Conditions Input Range (V) LSB (1) TEMP 8 or 9 N/A 1°C or 0.5°C VAUX 8 See Table 6 GAIN = 0; BIASREF = 0 GNDA - VREF GAIN = 0; BIASREF = 1 VDDA – (VDDA – VREF) 4.77mV GAIN = 1; BIASREF = 0 GNDA - VREF/4 VMPD 8 GAIN = 1; BIASREF = 1 VDDA – (VDDA – VREF/4) 1.17mV VILD- = VDDA VDDA – (VDDA – VREF) VILD 8 VILD- = GNDA GNDA - VREF 4.77mV VRX 12 RXPOT = 00 0 - VREF 0.298mV Table 5. A/D Input Signal Ranges and Resolutions Note: 1. Assumes typical VREF value of 1.22V. Channel VAUX [2:0] Input Range (V) LSB (1) (mV) VIN 000 = 00h 0.5V to 5.5V 25.6mV VDDA 001 = 01h 0.5V to 5.5V 25.6mV VBIAS 010 = 02h 0.5V to 5.5V 25.6mV VMOD 011 = 03h 0.5V to 5.5V 25.6mV APCDAC 100 = 04h 0V to VREF 4.77mV MODDAC 101 = 05h 0V to VREF 4.77mV FLTDAC 110 = 06h 0V to VREF 4.77mV Table 6. VAUX Input Signal Ranges and Resolutions Note: 1. Assumes typical VREF value of 1.22V. Alarms and Warnings Interrupt Source Masking Alarm and warning violations set the flags in the Alarm and Warning Status Registers, and also assert the interrupt output if they are not masked. If an alarm or warning is masked, it will not set the interrupt. Table 8 shows the locations of the masking bits. The warning or alarm is masked if the corresponding bit is set to 1. |
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