PIC24F16KL402 Datasheet, PDF (164/260 Pages) Microchip Technology – Low-Power, Low-Cost, General Purpose 16-Bit Flash Microcontrollers with nanoWatt XLP Technology

PIC24F16KL402 FAMILY
EQUATION 19-1: A/D CONVERSION CLOCK PERIOD⁽¹⁾
ADCS =
TAD
TCY
–1
TAD = TCY • (ADCS + 1)
Note 1: Based on TCY = 2 * TOSC; Doze mode and PLL are disabled.
FIGURE 19-2:
10-BIT A/D CONVERTER ANALOG INPUT MODEL
Rs ^ANx
VA
CPIN
6-11 pF
(Typical)
VDD
VT = 0.6V
VT = 0.6V
RIC  250W
ILEAKAGE
±500 nA
Sampling
Switch
RSS
RSS  5 k (Typical)
CHOLD
= DAC capacitance
= 4.4 pF (Typical)
VSS
Legend:
CPIN
VT
ILEAKAGE
RIC
RSS
CHOLD
= Input Capacitance
= Threshold Voltage
= Leakage Current at the pin due to
Various Junctions
= Interconnect Resistance
= Sampling Switch Resistance
= Sample/Hold Capacitance (from DAC)
Note: CPIN value depends on device package and is not tested. Effect of CPIN negligible if Rs  5 k.
DS31037B-page 164
 2011 Microchip Technology Inc.