PIC17C75X Datasheet, PDF (245/320 Pages) Microchip Technology – High-Performance 8-Bit CMOS EPROM Microcontrollers

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 NR Resolution
—
—
10
bit VREF = VDD = 5.12V, VSS ≤ VAIN ≤ VREF
A02 EABS Absolute error
—
—
< ±1
LSb 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
A05 EFS Full scale error
—
—
< ±1
LSb VREF = VDD = 5.12V, VSS ≤ VAIN ≤ VREF
A06 EOFF Offset error
—
—
< ±1
LSb VREF = VDD = 5.12V, VSS ≤ VAIN ≤ VREF
A10 — Monotonicity
— guaranteed
—
— VSS ≤ VAIN ≤ VREF
A20 VREF Reference voltage
(VREFH - VREFL)
0V
—
—
V
A21 VREFH Reference voltage High
VSS +
—
AVDD +
V
3.0V
0.3V
A22 VREFL Reference voltage Low
AVSS -
—
0.3V
AVDD -
V
3.0V
A25 VAIN Analog input voltage
VSS -
—
VREF +
V
0.3V
0.3V
A30 ZAIN Recommended impedance
—
—
10.0
kΩ
of analog voltage source
A40 IAD A/D conversion 17CXXX
—
180
current (VDD) _17LCXXX
—
90
—
µA Average current consumption when
—
µA ^{A/D is on. (Note 1)}
A50 IREF VREF input current (Note 2)
10
—
—
1000
µA During VAIN acquisition.
Based on differential of VHOLD to VAIN.
To charge CHOLD see Section 16.1.
—
10
µA During A/D conversion cycle
*
†
Note 1:
2:
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.
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.
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