PIC16F737-I Datasheet, PDF (237/276 Pages) Microchip Technology – 28/40/44-Pin, 8-Bit CMOS Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

PIC16F7X7
TABLE 18-15: A/D CONVERTER CHARACTERISTICS: PIC16F7X7 (INDUSTRIAL, EXTENDED)
PIC16LF7X7 (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
A10
— Monotonicity
—
—
<±1
—
guaranteed⁽³⁾
—
LSb VREF = VDD = 5.12V,
VSS ≤ VAIN ≤ VREF
— VSS ≤ VAIN ≤ VREF
A20 VREF Reference Voltage
(VREF+ – VREF-)
2.0
—
VDD + 0.3
V
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 – 0.3V
—
VREF + 0.3V V
A30 ZAIN Recommended Impedance of
—
—
2.5
kΩ (Note 4)
Analog Voltage Source
A40 IAD A/D Conversion PIC16F7X7
—
220
—
µA Average current
Current (VDD) _PIC16LF7X7
—
90
—
µA ^{consumption when A/D is on}
(Note 1)
A50 IREF VREF Input Current (Note 2)
—
—
5
µA During VAIN acquisition.
Based on differential of VHOLD
to VAIN to charge CHOLD,
see Section 12.1 “A/D
Acquisition Requirements”.
—
—
150
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 specification
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.
4: Maximum allowed impedance for analog voltage source is 10 kΩ. This requires higher acquisition time.
 2004 Microchip Technology Inc.
DS30498C-page 235