PIC16LF1946_13 Datasheet, PDF (410/478 Pages) Microchip Technology – 64-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt XLP Technology

PIC16(L)F1946/47
TABLE 30-8: PIC16(L)F1946/47 A/D CONVERTER (ADC) CHARACTERISTICS^(1,2,3):
Standard Operating Conditions (unless otherwise stated)
Operating temperature TA 25°C
Param
No.
Sym.
Characteristic
Min. Typ† Max. Units
Conditions
AD01 NR Resolution
—
—
10 bit
AD02 EIL Integral Error
—
— ±1.7 LSb VREF = 3.0V
AD03 EDL Differential Error
—
—
±1 LSb No missing codes
VREF = 3.0V
AD04 EOFF Offset Error
—
— ±2.5 LSb VREF = 3.0V
AD05 EGN Gain Error
AD06 VREF Reference Voltage⁽⁴⁾
—
— ±2.0 LSb VREF = 3.0V
1.8
—
VDD V VREF = (VREF+ minus VREF-)
AD07 VAIN Full-Scale Range
VSS
—
VREF V
AD08 ZAIN Recommended Impedance of
Analog Voltage Source
—
—
10 k Can go higher if external 0.01F capacitor is
present on input pin.
†
Note 1:
2:
3:
4:
Data in “Typ” column is at 3.0V, 25°C unless otherwise stated. These parameters are for design guidance only and are not
tested.
Total Absolute Error includes integral, differential, offset and gain errors.
The A/D conversion result never decreases with an increase in the input voltage and has no missing codes.
When ADC is off, it will not consume any current other than leakage current. The power-down current specification
includes any such leakage from the ADC module.
ADC Reference Voltage (Ref+) is the selected reference input, VREF+ pin, VDD pin or the FVR Buffer1. When the FVR is
selected as the reference input, the FVR Buffer1 output selection must be 2.048V or 4.096V, (ADFVR<1:0> = 1x).
TABLE 30-9: PIC16(L)F1946/47 A/D CONVERSION REQUIREMENTS
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C  TA  +125°C
Param
No.
Sym.
Characteristic
Min.
Typ†
Max. Units
Conditions
AD130* TAD A/D Clock Period
1.0
—
9.0 s TOSC-based
A/D Internal RC Oscillator
Period
1.0
2.5
6.0 s ADCS<1:0> = 11 (ADRC mode)
AD131 TCNV Conversion Time (not including —
11
— TAD Set GO/DONE bit to conversion
Acquisition Time)⁽¹⁾
complete
AD132* TACQ Acquisition Time
—
5.0
—
s
*
†
Note 1:
These parameters are characterized but not tested.
Data in “Typ” 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.
DS41414D-page 410
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