PIC24FJ256GB106-I Datasheet, PDF (259/328 Pages) Microchip Technology – 64/80/100-Pin, 16-Bit Flash Microcontrollers with USB On-The-Go (OTG)

PIC24FJ256GB110 FAMILY
EQUATION 21-1: A/D CONVERSION CLOCK PERIOD⁽¹⁾
TAD
ADCS = _TCY – 1
TAD = TCY • (ADCS + 1)
Note 1: Based on TCY = 2 * TOSC; Doze mode and PLL are disabled.
FIGURE 21-2:
10-BIT A/D CONVERTER ANALOG INPUT MODEL
Rs ^ANx
VA
CPIN
6-11 pF
(Typical)
VDD
VT = 0.6V
VT = 0.6V
RIC ≤ 250Ω
ILEAKAGE
±500 nA
Sampling
Switch
RSS
RSS ≤ 5 kΩ (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 kΩ.
© 2008 Microchip Technology Inc.
Preliminary
DS39897B-page 257