Rainbow-electronics ATmega64C1 Manual do Utilizador descarregar pdf (Página 317)

100

101

317

7647A–AVR–02/08

ATmega32/64/M1/C1

Zero Error (Offset)

Single Ended Conversion

= 4.5V, V

REF

= 4V

ADC clock = 1MHz

-4 0 LSB

Single Ended Conversion

= 4.5V, V

REF

= 4V

ADC clock = 500 kHz

-2 2.5 LSB

Differential Conversion

= 4.5V, V

REF

= 4V

ADC clock = 1MHz

-0.5 0.5 LSB

Differential Conversion

= 4.5V, V

REF

= 4V

ADC clock = 500 kHz

-0.5 0.5 LSB

Conversion Time Single Conversion 8 320 µs

Clock Frequency 50 2000 kHz

Analog Supply Voltage V

- 0.3 V

+ 0.3 V

REF

Reference Voltage

Single Ended Conversion 2.0 AV

Differential Conversion 2.0 AV

- 0.2 V

Input voltage

Single Ended Conversion GND V

REF

Differential Conversion -V

REF

/Gain +V

REF

/Gain

Input bandwidth

Single Ended Conversion 38.5 kHz

Differential Conversion 4 kHz

INT

Internal Voltage Reference 2.56 V

REF

Reference Input Resistance 30 kΩ

AIN

Analog Input Resistance 100 MΩ

HSM

Increased Current

Consumption

High Speed Mode

Single Ended Conversion

µA

Table 25-2. ADC Characteristics - T

= -40°C to +125°C, V

= 2.7V to 5.5V (unless otherwise noted) (Continued)

Symbol Parameter Condition Min Typ Max Units

1 2 ... 312 313 314 315 316 317 318 319 320 321 322 ... 365 366

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