Datasheet

PIC16F72
DS39597C-page 104 © 2007 Microchip Technology Inc.
TABLE 14-9: A/D CONVERTER CHARACTERISTICS: PIC16F72 (INDUSTRIAL)
PIC16LF72 (INDUSTRIAL)
Param
No.
Sym Characteristic Min Typ† Max Units Conditions
A01 N
R Resolution PIC16F72 — — 8 bits bit VREF = VDD = 5.12V,
V
SS ≤ VAIN ≤ VREF
PIC16LF72 — — 8 bits bit VREF = VDD = 2.2V
A02 E
ABS Total Absolute Error — — < ± 1 LSb VREF = VDD = 5.12V,
V
SS ≤ VAIN ≤ VREF
A03 EIL Integral Linearity Error — — < ± 1 LSb VREF = VDD = 5.12V,
V
SS ≤ VAIN ≤ VREF
A04 EDL Differential Linearity Error — — < ± 1 LSb VREF = VDD = 5.12V,
V
SS ≤ VAIN ≤ VREF
A05 EFS Full Scale Error — — < ± 1 LSb VREF = VDD = 5.12V,
V
SS ≤ VAIN ≤ VREF
A06 EOFF Offset Error — — < ± 1 LSb VREF = VDD = 5.12V,
V
SS ≤ VAIN ≤ VREF
A10 — Monotonicity (Note 3) — guaranteed — — VSS ≤ VAIN ≤ VREF
A20 VREF Reference Voltage 2.5
2.2
—
—
VDD+0.3
V
DD+0.3
V
V
-40°C to +85°C
0°C to +85°C
A25 V
AIN Analog Input Voltage VSS - 0.3 — VREF + 0.3 V
A30 Z
AIN Recommended Impedance of
Analog Voltage Source
— — 10.0 kΩ
A40 IAD A/D Conversion
Current (V
DD)
PIC16F72 — 180 — μA Average current
consumption when A/D
is on (Note 1).
PIC16LF72 — 90 — μA
A50 I
REF VREF input current (Note 2) N/A
—
—
—
± 5
500
μA
μA
During VAIN acquisition.
During A/D Conversion
cycle.
* These parameters are characterized but not tested.
† Data in “Typ” column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance only
and are not tested.
Note 1: When A/D is off, it will not consume any current other than minor leakage current. The power-down current
spec includes any such leakage from the A/D module.
2: V
REF current is from the RA3 pin or the VDD pin, whichever is selected as a reference input.
3: The A/D conversion result never decreases with an increase in the input voltage and has no missing codes.