MAC7101CVF datasheet(25/48 Pages) MOTOROLA

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MAC7100 Microcontroller Family Hardware Specifications

MOTOROLA

PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE

Electrical Characteristics

3.10.2 ATD Accuracy

Table 27 and Table 28 specify the ATD conversion performance excluding any errors due to current

injection, input capacitance and source resistance.

For the following definitions see also Figure 8.

Differential Non-Linearity (DNL) is defined as the difference between two adjacent switching steps.

The Integral Non-Linearity (INL) is defined as the sum of all DNLs:

Table 27. ATD Conversion Performance in 5 V Range

Conditions shown in Table 6 unless otherwise noted.

VREF = VRH – VRL = 5.12 V, resulting in one 8 bit count = 20 mV and one 10 bit count = 5 mV

fATDCLK = 2.0 MHz, 4.5 V ≤ VDDA ≤ 5.5 V

Num C

Rating

Symbol

Min

Typ

Max

Unit

P 10-bit Resolution

LSB

—

P 10-bit Differential Nonlinearity

DNL

–1

—

Counts

P 10-bit Integral Nonlinearity

INL

–2.5

±1.5

2.5

Counts

P 10-bit Absolute Error 1

1 These values include the quantization error which is inherently 1/2 count for any A/D converter.

–3

±2.0

Counts

P 8-bit Resolution

LSB

—

P 8-bit Differential Nonlinearity

DNL

–0.5

—

0.5

Counts

P 8-bit Integral Nonlinearity

INL

–1.0

±0.5

1.0

Counts

P 8-bit Absolute Error 1

–1.5

±1.0

1.5

Counts

Table 28. ATD Conversion Performance in 3.3 V Range

Conditions shown in Table 6 unless otherwise noted.

VREF = VRH – VRL = 5.12 V, resulting in one 8 bit count = 20 mV and one 10 bit count = 5 mV

fATDCLK = 2.0 MHz, 4.5 V ≤ VDDA ≤ 5.5 V

Num C

Rating

Symbol

Min

Typ

Max

Unit

P 10-bit Resolution

LSB

—

3.25

—

P 10-bit Differential Nonlinearity

DNL

–1.5

—

1.5

Counts

P 10-bit Integral Nonlinearity

INL

–3.5

±1.5

3.5

Counts

P 10-bit Absolute Error 1

1 These values include the quantization error which is inherently 1/2 count for any A/D converter.

–5

±2.0

Counts

P 8-bit Resolution

LSB

—

P 8-bit Differential Nonlinearity

DNL

–0.5

—

0.5

Counts

P 8-bit Integral Nonlinearity

INL

–1.5

±1.0

1.5

Counts

P 8-bit Absolute Error 1

–1.5

±1.0

1.5

Counts

DNL i

()

Vi Vi1

–

1 LSB

----------------------- 1

–

INL n

()

DNL i

()

∑

Vn V0

–

1 LSB

------------------- n

–

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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