Datasheet

PIC12F609/615/617/12HV609/615
DS41302D-page 164  2010 Microchip Technology Inc.
TABLE 16-11: PIC12F615/617/HV615 A/D CONVERTER (ADC) CHARACTERISTICS:
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C  T
A  +125°C
Param
No.
Sym Characteristic Min Typ† Max Units Conditions
AD01 N
R Resolution — — 10 bits bit
AD02 E
IL Integral Error — — 1LSbVREF = 5.12V
(5)
AD03 EDL Differential Error — — 1 LSb No missing codes to 10 bits
V
REF = 5.12V
(5)
AD04 EOFF Offset Error — +1.5 +2.0 LSb VREF = 5.12V
(5)
AD07 EGN Gain Error — — 1LSbVREF = 5.12V
(5)
AD06
AD06A
VREF Reference Voltage
(3)
2.2
2.5
——
V
DD
V
Absolute minimum to ensure 1 LSb
accuracy
AD07 VAIN Full-Scale Range VSS —VREF V
AD08 Z
AIN Recommended
Impedance of Analog
Voltage Source
—— 10k
AD09* I
REF VREF Input Current
(3)
10 — 1000 ADuring VAIN acquisition.
Based on differential of V
HOLD to VAIN.
—— 50A During A/D conversion cycle.
* These parameters are characterized but not tested.
† Data in “Typ” column is at 5.0V, 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 A/D conversion result never decreases with an increase in the input voltage and has no missing
codes.
3: ADC V
REF is from external VREF or VDD pin, whichever is selected as reference input.
4: 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.
5: V
REF = 5V for PIC12HV615.