Datasheet

 2010 Microchip Technology Inc. Preliminary DS39979A-page 425
PIC18F87J72 FAMILY
Oscillator Input
Master Clock Frequency Range MCLK 1 — 16.384 MHz (Note 7)
Power Specifications
Operating Voltage, Analog SAV
DD 4.5 — 5.5 V
Operating Voltage, Digital SV
DD 2.7 3.6 5.5 V
Operating Current, Analog
(Note 2)
AIDD — 2 2.8 BOOST<1:0> = 00
— 3.5 5.6 mA BOOST<1:0> = 11
Operating Current, Digital DI
DD —0.650.9 mASVDD = 5V,
MCLK = 4 MHz
—0.30.4mASV
DD = 2.7V,
MCLK = 4 MHz
—1.21.6mASV
DD = 5V,
MCLK = 8.192 MHz
Shutdown Current, Analog I
DDS,A —— 1 µASAVDD pin only (Note 8)
Shutdown Current, Digital IDDS,D —— 1 µASVDD pin only (Note 8)
TABLE 29-26: DUAL-CHANNEL AFE ELECTRICAL CHARACTERISTICS (CONTINUED)
Electrical Specifications: Unless otherwise indicated: SAVDD = 4.5 to 5.5V, SVDD = 2.7 to 5.5V, -40°C < TA <+85°C,
MCLK = 4 MHz, PRESCALE = 1, OSR = 64, GAIN = 1, Dithering Off, V
IN = -0.5, dBFS = 353 mVRMS @ 50/60 Hz
Parameters Symbol Min Typical Max Units Conditions
Note 1: Outside of this range, the ADC accuracy is not specified. An extended input range of ±6V can be applied
continuously to the part with no risk of damage.
2: For these operating currents, the following bit settings apply: SHUTDOWN<1:0> = 00, RESET<1:0> = 00,
VREFEXT = 0, CLKEXT = 0.
3: This specification implies that the ADC output is valid over this entire differential range and that there is no
distortion or instability across this input range. Dynamic performance is specified at -0.5 dB below the maximum
signal range, V
IN = -0.5 dBFS @ 50/60 Hz = 353 mVRMS, mVREF = 2.4V.
4: See Appendix B.3 “Terminology and Formulas” for definitions.
5: Applies to all gains. Offset error is dependent on PGA gain setting.
6: This parameter is established by characterization and is not 100% tested.
7: For proper operation and to keep ADC accuracy, AMCLK should always be in the range of 1 to 5 MHz with
BOOST bits off. With BOOST bits on, AMCLK should be in the range of 1 to 8.192 MHz.
AMCLK = MCLK/PRESCALE.
8: For these operating currents, the following Configuration bit settings apply: SHUTDOWN<1:0> = 11,
VREFEXT = 1, CLKEXT = 1.