ATXMEGA32D4-CU 查看數據表（PDF） - Atmel Corporation

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ATXMEGA32D4-CU

8/16-bit Atmel XMEGA D4 Microcontroller

Atmel Corporation 

XMEGA D4

Table 32-10. Accuracy characteristics. (Continued)

Symbol Parameter

Condition (2)

Min.

Typ.

Max. Units

-1

mV

Offset error

Temperature drift

<0.01

mV/K

Operating voltage drift

<0.6

mV/V

External reference

-1

Gain error

Differential

mode

AVCC/1.6

AVCC/2.0

Bandgap

10

mV

8

±5

Temperature drift

<0.02

mV/K

Operating voltage drift

<0.5

mV/V

Notes:

Noise

Differential mode, shorted input

200ksps, VCC = 3.6V, ClkPER = 16MHz

0.4

mV

rms

1. Maximum numbers are based on characterisation and not tested in production, and valid for 5% to 95% input voltage range.

2. Unless otherwise noted all linearity, offset and gain error numbers are valid under the condition that external VREF is used.

Table 32-11. Gain stage characteristics.

Symbol

Rin

Csample

Parameter

Input resistance

Input capacitance

Signal range

Propagation delay

Sample rate

INL (1) Integral non-linearity

Gain error

Offset error,

input referred

Noise

Condition

Switched in normal mode

Switched in normal mode

Gain stage output

ADC conversion rate

Same as ADC

50ksps

1x gain, normal mode

8x gain, normal mode

64x gain, normal mode

1x gain, normal mode

8x gain, normal mode

64x gain, normal mode

1x gain, normal mode

8x gain, normal mode

64x gain, normal mode

All gain

settings

VCC = 3.6V

Ext. VREF

Min.

0

14

Typ.

4.0

4.4

1

±1.5

-0.8

-2.5

-3.5

-2

-5

-4

0.5

1.5

11

Max.

VCC - 0.6

200

Units

kΩ

pF

V

ClkADC

cycles

kHz

±4

lsb

%

mV

mV

rms

Note: 1. Maximum numbers are based on characterisation and not tested in production, and valid for 5% to 95% input voltage range.

71

8135L–AVR–06/12

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