Datasheet

 1999-2013 Microchip Technology Inc. Preliminary DS41124D-page 141
PIC16C745/765
TABLE 16-10: A/D CONVERTER CHARACTERISTICS: PIC16C745/765 (INDUSTRIAL)
Param
No.
Sym Characteristic Min Typ† Max Units Conditions
A01 N
R Resolution — — 8 bits bit
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) — warranteed — — VSS  VAIN  VREF
A20 VREF Reference voltage 2.5V — VDD + 0.3 V
A25 V
AIN Analog input voltage VSS - 0.3 — VREF + 0.3 V
A30 Z
AIN Recommended impedance of
analog voltage source
— — 10.0 k
A40 I
AD A/D conversion current (VDD) — 180 — A Average current consump-
tion when A/D is on (Note 1)
A50 I
REF VREF input current (Note 2) 10
—
—
—
1000
10
A
A
During VAIN acquisition.
Based on differential of
V
HOLD to VAIN to charge
C
HOLD, see Section 12.1.
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.