PIC17C7XX_13 Datasheet, PDF (263/306 Pages) Microchip Technology – High-Performance 8-bit CMOS EPROM Microcontrollers with 10-bit A/D

PIC17C7XX
TABLE 20-18: A/D CONVERTER CHARACTERISTICS
Param.
No.
Sym
Characteristic
Min
Typ†
Max Units
Conditions
A01
NR Resolution
—
—
10
bit VREF+ = VDD = 5.12V,
VSS  VAIN  VREF+
—
—
10
bit (VREF+ — VREF-)  3.0V,
VREF-  VAIN  VREF+
A02 EABS Absolute error
—
—
< 1 LSb VREF+ = VDD = 5.12V,
VSS  VAIN  VREF+
—
—
< 1 LSb (VREF+ — VREF-)  3.0V,
VREF-  VAIN  VREF+
A03
EIL Integral linearity error
—
—
< 1 LSb VREF+ = VDD = 5.12V,
VSS  VAIN  VREF+
—
—
< 1 LSb (VREF+ — VREF-)  3.0V,
VREF-  VAIN  VREF+
A04 EDL Differential linearity error
—
—
< 1 LSb VREF+ = VDD = 5.12V,
VSS  VAIN  VREF+
—
—
< 1 LSb (VREF+ — VREF-)  3.0V,
VREF-  VAIN  VREF+
A05 EFS Full scale error
—
—
< 1 LSb VREF+ = VDD = 5.12V,
VSS  VAIN  VREF+
—
—
< 1 LSb (VREF+ — VREF-)  3.0V,
VREF-  VAIN  VREF+
A06 EOFF Offset error
—
—
< 1 LSb VREF+ = VDD = 5.12V,
VSS  VAIN  VREF+
A10
— Monotonicity
—
—
< 1 LSb (VREF+ — VREF-)  3.0V,
VREF-  VAIN  VREF+
— guaranteed⁽³⁾
—
— VSS  VAIN  VREF
A20 VREF Reference voltage
(VREF+ — VREF-)
0V
—
—
V VREF delta when changing voltage
levels on VREF inputs
A20A
3V
—
—
V Absolute minimum electrical spec.
to ensure 10-bit accuracy
A21 VREF+ Reference voltage high
AVSS
—
AVDD + V
+ 3.0V
0.3V
A22 VREF- Reference voltage low
Avss -
—
AVDD -
V
0.3V
3.0V
A25 VAIN Analog input voltage
AVSS -
—
0.3V
Vref + V
0.3V
A30 ZAIN Recommended impedance of
—
analog voltage source
—
10.0 k
A40
IAD A/D conversion PIC17CXXX
—
180
current (VDD) _{PIC17LCXXX —}
90
—
A Average current consumption when
—
A ^{A/D is on (Note 1)}
A50 IREF VREF input current (Note 2)
10
—
1000 A During VAIN acquisition.
Based on differential of VHOLD to
VAIN
—
—
10
A During A/D conversion cycle
† Data in “Typ” column is at 5V, 25C unless otherwise stated.
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: VREF current is from RG0 and RG1 pins or AVDD and AVSS pins, whichever is selected as reference input.
3: The A/D conversion result never decreases with an increase in the Input Voltage and has no missing codes.
 1998-2013 Microchip Technology Inc.
DS30289C-page 263