EVAL-ADUC832QSZ Analog Devices Inc, EVAL-ADUC832QSZ Datasheet - Page 43

• Manufacturer Part Number: EVAL-ADUC832QSZ
• Description: KIT DEV FOR ADUC832 QUICK START
• Manufacturer: Analog Devices Inc
• Series: QuickStart™ Kitr
• Type: MCUr

Specifications of EVAL-ADUC832QSZ

• Contents: Evaluation Board, Cable, Power Supply, Software and Documentation
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: ADuC832
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant
• Other names: EVAL-ADUC832QS; EVAL-ADUC832QS

CALIBRATING THE ADC
There are two hardware calibration modes provided that can be
easily initiated by user software. The ADCCON3 SFR is used to
calibrate the ADC. The typical bit (ADCCON3[1]) and the CS3
to CS0 bits (ADCCON2[3:0]) set up the calibration modes.
Device calibration can be initiated to compensate for significant
changes in operating conditions frequency, analog input range,
reference voltage, and supply voltages. In this calibration mode,
offset calibration uses the internal AGND selected via ADCCON2
register bits CS[3:0] = 1011, and gain calibration uses the internal
V
executed first, followed by gain calibration.
REF
selected by CS[3:0] = 1100. Offset calibration should be
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System calibration can be initiated to compensate for both internal
and external system errors. To perform system calibration using
an external reference, tie system ground and reference to any
two of the six selectable inputs. Enable external reference mode
(ADCCON1[6]). Select the channel connected to AGND via
CS[3:0] and perform system offset calibration. Select the channel
connected to V
The ADC should be configured to use settings for an ADCCLK
of divide-by-16 and divide-by-4 acquisition clocks.
REF
via CS[3:0] and perform system gain calibration.
ADuC832