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| PIC24FJ128GC010 Datasheet, PDF (367/472 Pages) Microchip Technology – 16-Bit Flash Microcontrollers with 12-Bit Pipeline A/D, Sigma-Delta A/D, USB On-The-Go and XLP Technology | |||
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PIC24FJ128GC010 FAMILY
FIGURE 26-2:
12-BIT A/D CONVERTER SINGLE-ENDED ANALOG INPUT MODEL
Rs ANx
VA
CPIN
RIC ï£ 250ï
Sampling
Switch
RSS
ILEAKAGE
50 nA typ.
CHOLD
= 2 pF
VSS
Legend: CIN
= Pin Capacitance + Channel MUX Capacitance(2)
VT
= Threshold Voltage
ILEAKAGE = Leakage Current at the pin due to
various junctions
RIC
= Interconnect Resistance
RSS
= Sampling Switch Resistance
CHOLD = Sample/Hold Capacitance (from DAC)
Note 1: The CIN value depends on the device package and is not tested. The effect of CPIN is negligible if Rs ï£ 1.5 kï.
2: The input channel multiplexer will add capacitance based on the input channel selected. Selecting
Channels AN0-AN14 will add <5 pF and selecting Channels AN15 and above will add ~16 pF.
ï£ 2012-2013 Microchip Technology Inc.
DS30009312B-page 367
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