Rainbow-electronics ATmega8HVD Manuel d'utilisateur télécharger pdf (Page 147)

147

8052B–AVR–09/08

ATmega4HVD/8HVD

ADC Characteristics

Notes: 1. Values are guidelines only.

2. All characteristics contained in this data sheet are based on simulation and characterization of other AVR microcontrollers

manufactured in the same process technology. These values are preliminary values representing design targets, and will be

updated after characterization of actual silicon.

Table 26-7. ADC Characteristics

(2)

, T

= -20°C to 85°C, VFET = 2.4 to 4.2V (unless otherwise noted)

Symbol Parameter Condition Min

(1)

Typ

(1)

Max

(1)

Units

ADC

Resolution 10 Bits

Absolute Accuracy

(Including INL, DNL, Quantization Error, Gain

and Offset Error)

VCELL > 1V LSB

Integral Non-Linearity (INL)

VCELL > 1V

= 2.2V

ADC clock = 167 kHz

2LSB

Differential Non-Linearity (DNL)

VCELL > 1V

= 2.2V

ADC clock = 167 kHz

0.5 LSB

Gain Error

VCELL > 1V

= 2.2V

ADC clock = 167 kHz

4LSB

Offset error

VCELL > 1V

= 2.2V

ADC clock = 167 kHz

2LSB

PrescaledClock Frequency Fast RC Osc = 8 MHz 167 kHz

Conversion Time (VCELL, ADC0) ADC clock = 167 kHz 78 µs

Conversion Time (VTEMP) ADC clock = 167 kHz 163 µs

Input Voltage (VCELL) GND 5 V

Input Voltage ( ADC0) VCELL > 1V GND 1 V

Input Voltage ( VTEMP) VCELL > 1V GND 1 V

Input Bandwidth 7.5 kHz

Analog Input Resistance 100 MΩ

Temp.

Sensor

PTAT

, Voltage Proportional to Absolute

Temperature

1.07 mV/K

Absolute Accuracy TBD K

1 2 ... 142 143 144 145 146 147 148 149 150 151 152 ... 167 168

Commentaires sur ces manuels

Pas de commentaire

Rainbow-electronics ATmega8HVD Manuel d'utilisateur Page 147

Commentaires sur ces manuels

Produits connexes et manuels pour Capteurs Rainbow-electronics ATmega8HVD