PIC17C75X
TABLE 20-17: A/D CONVERTER CHARACTERISTICS:
PIC17LC752/756-08 (COMMERCIAL, INDUSTRIAL)
PIC17C752/756-25 (COMMERCIAL, INDUSTRIAL)
PIC17C752/756-33 (COMMERCIAL, INDUSTRIAL)
Param. Sym Characteristic
No.
Min
Typ†
Max
Units
Conditions
A01
A02
A03
A04
A05
A06
A10
A20
NR
Resolution
—
—
—
—
—
—
—
0V
—
10
< ±1
< ±1
< ±1
< ±1
< ±1
—
bit VREF = VDD = 5.12V, VSS ≤ VAIN ≤ VREF
LSb VREF = VDD = 5.12V, VSS ≤ VAIN ≤ VREF
LSb VREF = VDD = 5.12V, VSS ≤ VAIN ≤ VREF
LSb VREF = VDD = 5.12V, VSS ≤ VAIN ≤ VREF
LSb VREF = VDD = 5.12V, VSS ≤ VAIN ≤ VREF
LSb VREF = VDD = 5.12V, VSS ≤ VAIN ≤ VREF
EABS Absolute error
—
EIL
Integral linearity error
—
EDL Differential linearity error
EFS Full scale error
EOFF Offset error
—
—
—
guaranteed
—
—
Monotonicity
—
V
VSS ≤ VAIN ≤ VREF
VREF Reference voltage
(VREFH - VREFL)
—
A21
A22
A25
A30
A40
VREFH Reference voltage High
VREFL Reference voltage Low
VAIN Analog input voltage
VSS +
3.0V
—
—
—
—
AVDD +
0.3V
V
V
AVSS -
0.3V
AVDD -
3.0V
VSS -
0.3V
VREF +
0.3V
V
ZAIN Recommended impedance
of analog voltage source
—
10.0
kΩ
IAD
A/D conversion 17CXXX
—
—
10
180
90
—
—
µA Average current consumption when
current (VDD)
A/D is on. (Note 1)
17LCXXX
µA
A50
IREF VREF input current (Note 2)
—
1000
µA During VAIN acquisition.
Based on differential of VHOLD to VAIN.
To charge CHOLD see Section 16.1.
µA During A/D conversion cycle
—
—
10
*
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 RG0 and RG1 pins or AVDD and AVSS pins, whichever is selected as reference input.
1997 Microchip Technology Inc.
Preliminary
DS30264A-page 245
MICROCHIP [ MICROCHIP ]
