PIC16LC74B-16 Datasheet, PDF (25/41 Pages) Microchip Technology – 8-Bit CMOS Microcontrollers with A/D Converter

PIC16LC74B-16/PTL16
TABLE 2-16: A/D CONVERTER CHARACTERISTICS: PIC16LC74B-16/PTL16-04 (COMMERCIAL)
Param Sym
No.
A01 NR Resolution
Characteristic
A02 EABS Total Absolute error
A03 EIL Integral linearity error
A04 EDL Differential linearity error
A05 EFS Full scale error
A06 EOFF Offset error
A10 — Monotonicity (Note 3)
A20 VREF Reference voltage
A25 VAIN Analog input voltage
A30 ZAIN Recommended impedance of
analog voltage source
A40 IAD A/D conversion current (VDD)
A50 IREF VREF input current (Note 2)
Min
Typ†
Max Units
Conditions
—
—
8 bits
—
—
<±1
—
—
<±1
—
—
<±1
—
—
<±1
—
—
<±1
— guaranteed
—
2.5V
—
VDD + 0.3
VSS - 0.3
—
VREF + 0.3
—
—
10.0
bit VREF = VDD
LSb ^{VREF = VDD}
VSS ≤ VAIN ≤ VREF
LSb ^{VREF = VDD}
VSS ≤ VAIN ≤ VREF
LSb ^{VREF = VDD}
VSS ≤ VAIN ≤ VREF
LSb ^{VREF = VDD}
VSS ≤ VAIN ≤ VREF
LSb ^{VREF = VDD}
VSS ≤ VAIN ≤ VREF
— VSS ≤ VAIN ≤ VREF
V
V
kΩ
—
90
—
µA Average current consump-
tion when A/D is on.
(Note 1)
10
—
1000
µA During VAIN acquisition.
Based on differential of
VHOLD to VAIN to charge
CHOLD
—
—
10
µA During A/D Conversion
cycle
* These parameters are characterized but not tested.
†Data in “Typ” column is at 3V, 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
DS30026A-page 25