PIC16F872
TABLE 14-9: PIC16F872 AND PIC16LF872 (INDUSTRIAL)
Param Sym Characteristic
No.
Min
Typ†
Max
Units
Conditions
A01
A03
A04
A06
A07
NR Resolution
—
—
—
—
—
—
—
—
—
—
10-bits
bit
VREF = VDD = 5.12V,
VSS ≤ VAIN ≤ VREF
EIL Integral linearity error
EDL Differential linearity error
EOFF Offset error
VREF = VDD = 5.12V,
VSS ≤ VAIN ≤ VREF
< ± 1
< ± 1
< ± 1
< ± 1
LSb
LSb
LSb
LSb
VREF = VDD = 5.12V,
VSS ≤ VAIN ≤ VREF
VREF = VDD = 5.12V,
VSS ≤ VAIN ≤ VREF
EGN Gain error
VREF = VDD = 5.12V,
VSS ≤ VAIN ≤ VREF
(3)
A10
A20
—
—
guaranteed
—
—
—
V
VSS ≤ VAIN ≤ VREF
Monotonicity
VREF Reference voltage (VREF+ - VREF-)
2.0V
VDD + 0.3
Absolute minimum electrical
spec. To ensure 10-bit
accuracy.
A21
VREF Reference voltage High
AVDD - 2.5V
AVDD + 0.3V
V
+
A22 VREF- Reference voltage low
AVSS - 0.3V
VSS - 0.3
—
VREF+ - 2.0V
VREF + 0.3
10.0
V
V
A25
A30
VAIN Analog input voltage
—
—
ZAIN Recommended impedance of
kΩ
analog voltage source
A40
A50
IAD A/D conversion cur-
rent (VDD)
Standard
Extended
—
—
220
90
—
—
µA Average current consumption
when A/D is on.
(Note 1)
µA
IREF VREF input current (Note 2)
10
—
1000
µA During VAIN acquisition.
Based on differential of VHOLD
to VAIN to charge CHOLD, see
Section 10.1.
—
—
10
µA 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: VREF current is from RA3 pin or VDD pin, 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.
1999 Microchip Technology Inc.
Preliminary
DS30221A-page 141
MICROCHIP [ MICROCHIP ]
