
PIC16F87X
DS30292C-page 174
2001 Microchip Technology Inc.
TABLE 15-12: PIC16F87X-04 (COMMERCIAL, INDUSTRIAL, EXTENDED)
PIC16F87X-10 (EXTENDED)
PIC16F87X-20 (COMMERCIAL, INDUSTRIAL)
PIC16LF87X-04 (COMMERCIAL, INDUSTRIAL)
Param
No.
Sym
Characteristic
Min
Typ
Max
Units
Conditions
A01
NR
Resolution
——
10-bits
bit
VREF = VDD = 5.12V,
VSS
≤ VAIN ≤ VREF
A03
EIL
Integral linearity error
——
< ± 1
LSb
VREF = VDD = 5.12V,
VSS
≤ VAIN ≤ VREF
A04
EDL
Differential linearity error
——
< ± 1
LSb
VREF = VDD = 5.12V,
VSS
≤ VAIN ≤ VREF
A06
EOFF
Offset error
——
< ± 2
LSb
VREF = VDD = 5.12V,
VSS
≤ VAIN ≤ VREF
A07
EGN
Gain error
——
< ± 1
LSb
VREF = VDD = 5.12V,
VSS
≤ VAIN ≤ VREF
A10
—
Monotonicity(3)
—
guaranteed
——
VSS
≤ VAIN ≤ VREF
A20
VREF
Reference voltage (VREF+ - VREF-)
2.0
—
VDD + 0.3
V
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
VREF+ - 2.0V
V
A25
VAIN
Analog input voltage
VSS - 0.3 V
—
VREF + 0.3 V
V
A30
ZAIN
Recommended impedance of
analog voltage source
——
10.0
k
A40
IAD
A/D conversion
current (VDD)
Standard
—
220
—
A
Average current consumption
when A/D is on (Note 1)
Extended
—
90
—
A
A50
IREF
VREF input current (Note 2)
10
—
1000
10
A
During VAIN acquisition.
Based on differential of VHOLD
to VAIN to charge CHOLD, see
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.