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PIC16LF1847_13 Datasheet, PDF (365/440 Pages) Microchip Technology – 18/20/28-Pin Flash Microcontrollers with XLP Technology | |||
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PIC16(L)F1847
TABLE 30-8: ANALOG-TO-DIGITAL CONVERTER (ADC) CHARACTERISTICS (NOTE 1, 2, 3)
Standard Operating Conditions (unless otherwise stated)
Operating temperature Tested at 25°C
Param.
No.
Sym.
Characteristic
Min. Typâ
Max. Units
Conditions
AD01 NR Resolution
â
â
10
bit
AD02 EIL Integral Error
â
±1
±1.7
LSb VREF = 3.0V
AD03 EDL Differential Error
â
±1
â
LSb No missing codes
VREF = 3.0V
AD04 EOFF Offset Error
â
±1
±2.5
LSb VREF = 3.0V
AD05 EGN Gain Error
â
±1
±2.0
LSb VREF = 3.0V
AD06 VREF Reference Voltage (Note 4) 1.8 â
VDD
V VREF = (VREF+ minus VREF-)
AD07 VAIN Full-Scale Range
VSS
â
VREF
V
AD08 ZAIN Recommended Impedance of â
â
Analog Voltage Source
10
kï Can go higher if external 0.01ïF capacitor is
present on input pin.
â Data in âTypâ column is at 3.0V, 25°C unless otherwise stated. These parameters are for design guidance only and are not
tested.
Note 1: Total Absolute Error includes integral, differential, offset and gain errors.
2: The ADC conversion result never decreases with an increase in the input voltage and has no missing codes.
3: ADC VREF is from external VREF, VDD or FVR, whichever is selected as reference input.
4: ADC Reference Voltage (Ref+) is the selected reference input, VREF+ pin, VDD pin or the FVR selected as the reference
input, the FVR Buffer1 output selection must be 2.048V or 4.096V (ADFVR<1:0> = 1x).
TABLE 30-9: ADC CONVERSION REQUIREMENTS
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C ï£ TA ï£ +125°C
Param.
No.
Sym.
Characteristic
Min.
Typâ
AD130* TAD ADC Clock Period
1.0
ADC Internal RC Oscillator
1.0
Period
AD131 TCNV Conversion Time (not
â
including Acquisition Time)
(Note 1)
AD132* TACQ Acquisition Time
â
AD133* THCD Holding Capacitor Disconnect â
â
2.5
11
5.0
0.5*TAD + 40 ns
Max.
9.0
6.0
â
â
â
Units
Conditions
ïs FOSC-based
ïs ADCS<1:0> = 11
(FRC Oscillator mode)
TAD Set GO/DONE bit to conversion
complete
ïs
ADCS<2:0> ï¹ x11 (FOSC-based)
â (0.5*TAD + 40 ns) â
to
(1.5*TAD + 40 ns)
ADCS<2:0> ï¹ x11 (ADC FRC mode)
*
â
Note 1:
These parameters are characterized but not tested.
Data in âTypâ column is at 3.0V, 25°C unless otherwise stated. These parameters are for design guidance only and are not
tested.
The ADRES register may be read on the following TCY cycle.
ï£ 2011-2013 Microchip Technology Inc.
Preliminary
DS40001453D-page 365
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