4502 datasheet(176/214 Pages) RENESAS

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3.1 Electrical characteristics

3-6

Rev.2.01

Feb 02, 2005

4502 Group

APPENDIX

REJ09B0193-0201

3.1.4 A/D converter recommended operating conditions

Table 3.1.5 A/D converter recommended operating conditions

(Comparator mode included, Ta = –20 °C to 85 °C, unless otherwise noted)

Symbol

VDD

VIA

f(XIN)

Parameter

Supply voltage

Analog input voltage

Oscillation frequency

Table 3.1.6 A/D converter characteristcs

(Comparator mode included, Ta = –20 °C to 85 °C, unless otherwise noted)

Conditions

Unit

MHz

Ta = 25 °C

Ta = –20 °C to 85 °C

VDD = 2.7 to 5.5 V

High-speed mode

Middle-speed mode

Low-speed mode

Default mode

Min.

2.7 (Note)

3.0

0.1

0.2

0.4

0.8

Typ.

Max.

5.5

VDD+2LSB

Limits

Symbol

–

V0T

VFST

IADD

TCONV

–

Parameter

Resolution

Linearity error

Differential non-linearity error

Zero transition voltage

Full-scale transition voltage

A/D operating current (Note 1)

A/D conversion time

Comparator resolution

Comparator error (Note 2)

Comparator comparison time

Test conditions

bits

LSB

µs

bits

µs

Ta = 25 °C, VDD = 2.7 to 5.5 V

Ta = –25 °C to 85 °C, VDD = 3.0 V to 5.5 V

Ta = 25 °C, VDD = 2.7 to 5.5 V

Ta = –25 °C to 85 °C, VDD = 3.0 V to 5.5 V

VDD = 5.12 V

VDD = 5.0 V

f(XIN) = 0.4 MHz to 4.0 MHz

f(XIN) = 4.0 MHz

High-speed mode

Middle-speed mode

Low-speed mode

Default mode

Comparator mode

VDD = 5.12 V

f(XIN) = 4.0 MHz

High-speed mode

Middle-speed mode

Low-speed mode

Default mode

Min.

5115

Typ.

5125

0.3

Max.

±2.0

±0.9

5135

0.9

46.5

93.0

186

372

±20

6.0

Limits

Notes 1: When the A/D converter is used, the IADD is included to IDD.

2: As for the error from the logic value in the comparator mode, when the contents of the comparator register is n, the logic value of the comparison

voltage Vref which is generated by the built-in DA converter can be obtained by the following formula.

Logic value of comparison voltage Vref

Vref =

✕ n

n = Value of register AD (n = 0 to 255)

VDD

256

Unit

Note: System is in the reset state when the value is the detection voltage of the voltage drop detection circuit or less.

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