PIC16F688
TABLE 14-8: PIC16F688 A/D CONVERTER (ADC) CHARACTERISTICS
Standard Operating Conditions (unless otherwise stated)
Operating temperature
-40°C ≤ TA ≤ +125°C
Param
No.
Sym
Characteristic
Min
Typ†
Max
Units
Conditions
AD01 NR
AD02 EIL
AD03 EDL
Resolution
—
—
—
—
10 bits
bit
Integral Error
—
—
1
1
LSb VREF = 5.12V
Differential Error
LSb No missing codes to 10 bits
VREF = 5.12V
AD04 EOFF Offset Error
AD07 EGN Gain Error
AD06 VREF Reference Voltage(1)
—
—
—
—
—
1
1
LSb VREF = 5.12V
LSb VREF = 5.12V
2.2
2.7
—
VDD
V
AD06A
Absolute minimum to ensure 1 LSb
accuracy
AD07 VAIN Full-Scale Range
VSS
—
—
—
VREF
10
V
AD08 ZAIN Recommended
Impedance of Analog
Voltage Source
kΩ
AD09* IREF
VREF Input Current(1)
10
—
—
—
1000
50
μA During VAIN acquisition.
Based on differential of VHOLD to VAIN.
μA During A/D conversion cycle.
*
These parameters are characterized but not tested.
†
Data in “Typ” column is at 5.0V, 25°C unless otherwise stated. These parameters are for design guidance
only and are not tested.
Note 1: ADC VREF is from external VREF or VDD pin, whichever is selected as reference input.
DS41203D-page 160
© 2007 Microchip Technology Inc.
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