Datasheet

© 2007-2012 Microchip Technology Inc. DS70292G-page 399
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
TABLE 31-14: ADC MODULE SPECIFICATIONS
TABLE 31-15: ADC MODULE SPECIFICATIONS (12-BIT MODE)
AC
CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +150°C for High Temperature
Param
No.
Symbol Characteristic Min Typ Max Units Conditions
Reference Inputs
HAD08 I
REF Current Drain
250
600
50
μA
μA
ADC operating, See Note 1
ADC off, See Note 1
Note 1: These parameters are not characterized or tested in manufacturing.
2: These parameters are characterized, but are not tested in manufacturing.
AC
CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +150°C for High Temperature
Param
No.
Symbol Characteristic Min Typ Max Units Conditions
ADC Accuracy (12-bit Mode) – Measurements with External V
REF+/VREF-
(1)
HAD20a Nr Resolution
(3)
12 data bits bits
HAD21a INL Integral Nonlinearity -2 +2 LSb V
INL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.6V
HAD22a DNL Differential Nonlinearity > -1 < 1 LSb VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.6V
HAD23a G
ERR Gain Error -2 10 LSb VINL = AVSS = VREFL = 0V,
AV
DD = VREFH = 3.6V
HAD24a E
OFF Offset Error -3 5 LSb VINL = AVSS = VREFL = 0V,
AV
DD = VREFH = 3.6V
ADC Accuracy (12-bit Mode) – Measurements with Internal V
REF+/VREF-
(1)
HAD20a Nr Resolution
(3)
12 data bits bits
HAD21a INL Integral Nonlinearity -2 +2 LSb VINL = AVSS = 0V, AVDD = 3.6V
HAD22a DNL Differential Nonlinearity > -1 < 1 LSb V
INL = AVSS = 0V, AVDD = 3.6V
HAD23a G
ERR Gain Error 2 20 LSb VINL = AVSS = 0V, AVDD = 3.6V
HAD24a E
OFF Offset Error 2 10 LSb VINL = AVSS = 0V, AVDD = 3.6V
Dynamic Performance (12-bit Mode)
(2)
HAD33a FNYQ Input Signal Bandwidth 200 kHz
Note 1: These parameters are characterized, but are tested at 20 ksps only.
2: These parameters are characterized by similarity, but are not tested in manufacturing.
3: Injection currents > | 0 | can affect the ADC results by approximately 4-6 counts.