ATmega324P datasheet(337/377 Pages) ATMEL

337 / 377 page

337

7674F–AVR–09/09

ATmega164P/324P/644P

Note:

1. 8-bit resolution

2. 7-bit resolution

3. Vref = Vcm/2

Table 26-9.

ADC Characteristics, Differential Channels

Symbol

Parameter

Condition

Min(1)

Typ(1)

Max(1)

Units

Resolution

Gain = 1x

Bits

Gain = 10x

Gain = 200x

TUE

Absolute Accuracy (Including

INL, DNL Quantization Error

and Offset Error)

Gain = 1x, VCC =5 V, VREF = 4V

ADC clock = 200 kHz(1)(3)

4.6

LSB

Gain = 10x, VCC =5 V, VREF = 4V

ADC clock = 200 kHz(1)(3)

4.8

Gain = 200x, VCC =5 V, VREF = 4V

ADC clock = 200 kHz(2)(3)

1.0

INL

Integral Non-linearity

Gain = 1x, VCC =5 V, VREF = 4V

ADC clock = 200 kHz(1)

0.2

1.5

LSB

Gain = 10x, VCC =5 V, VREF = 4V

ADC clock = 200 kHz(1)

0.2

1.5

Gain = 200x, VCC =5 V, VREF = 4V

ADC clock = 200 kHz(2)

0.25

1.5

DNL

Differential Non-linearity

Gain = 1x, VCC =5 V, VREF = 4V

ADC clock = 200 kHz(1)

0.2

1.0

LSB

Gain = 10x, VCC =5 V, VREF = 4V

ADC clock = 200 kHz(1)

0.2

1.0

Gain = 200x, VCC =5 V, VREF = 4V

ADC clock = 200 kHz(2)

0.25

1.0

Gain Error

Gain = 1x, VCC =5 V, VREF = 4V

ADC clock = 200 kHz(1)(3)

-12

-9

-4

LSB

Gain = 10x, VCC =5 V, VREF = 4V

ADC clock = 200 kHz(1)(3)

-12

-9

-4

Gain = 200x, VCC =5 V, VREF = 4V

ADC clock = 200 kHz(2)(3)

-3

-1

Offset Error

Gain = 1x, VCC =5 V, VREF = 4V

ADC clock = 200 kHz(1)(3)

-4

0.25

LSB

Gain = 10x, VCC =5 V, VREF = 4V

ADC clock = 200 kHz(1)(3)

-4

0.20

Gain = 200x, VCC =5 V, VREF = 4V

ADC clock = 200 kHz(2)(3)

-3

0.20

Conversion Time

260

µs

Clock Frequency

200

kHz

AVCC

Analog Supply Voltage

CC -

0.3

CC +

0.3

VREF

Reference Voltage

2.56

AVCC

- 0.5

Input Differential Voltage

AVCC

ATmega324P Datasheet(PDF) 337 Page - ATMEL Corporation

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