M38263ECFS datasheet(65/91 Pages) RENESAS

65 / 91 page

Rev.1.00

Sep 06, 2006

page 65 of 88

REJ03B0181-0100

3826 Group (One Time PROM version)

A/D CONVERTER CHARACTERISTICS

Table 21 A/D converter characteristics

(VCC = 2.7 to 5.5 V, VSS = AVSS = 0 V, Ta = –20 to 85°C, f(XIN) = 500 kHz to 8 MHz, in middle/high-speed mode unless otherwise noted)

8-bit A/D mode (when conversion mode selection bit (bit 0 of address 001416) is “1”)

Symbol

Parameter

Limits

Min.

Unit

Typ.

Max.

Test conditions

–

Resolution

Absolute accuracy

(excluding quantization error)

VCC = VREF = 2.7 to 5.5 V

Bits

LSB

150

µS

f(XIN) = 8 MHz

Conversion time

Ladder resistor

Reference power source input current

–

tCONV

RLADDER

IVREF

kΩ

µA

D/A CONVERTER CHARACTERISTICS

Table 23 D/A converter characteristics

(VCC = 2.7 to 5.5 V, VCC = VREF, VSS = AVSS = 0 V, Ta = –20 to 85°C, in middle/high-speed mode unless otherwise noted)

Symbol

Parameter

Limits

Min.

Unit

Typ.

Max.

Test conditions

–

Resolution

VCC = VREF = 5 V

VCC = VREF = 2.7 V

Bits

µs

kΩ

2.5

1.0

2.0

Note: Using one D/A converter, with the value in the D/A conversion register of the other D/A converter being “0016”, and excluding currents flowing through

the A/D resistance ladder.

(Note)

Setting time

Output resistor

–

tsu

3.2

Absolute accuracy

Analog port input current

IIA

IVREF

Reference power source input current

µA

VREF = 5 V

Table 22 A/D converter characteristics

(VCC = 2.7 to 5.5 V, VSS = AVSS = 0 V, Ta = –20 to 85°C, f(XIN) = 500 kHz to 8 MHz, in middle/high-speed mode unless otherwise noted)

10-bit A/D mode (when conversion mode selection bit (bit 0 of address 001416) is “0”)

Symbol

Parameter

Limits

Min.

Unit

Typ.

Max.

Test conditions

–

Resolution

Absolute accuracy

(excluding quantization error)

VCC = VREF = 2.7 to 5.5 V

Bits

LSB

150

±4

Conversion time

Ladder resistor

Reference power source input current

–

tCONV

RLADDER

IVREF

kΩ

µA

Analog port input current

IIA

µA

100

200

5.0

VREF = 5 V

Note: When the internal trigger is used in the middle-speed mode, the max. value of tCONV is 14 µS.

Note: When the internal trigger is used in the middle-speed mode, the max. value of tCONV is 17 µS.

100

200

5.0

±2

12.5

(Note)

µS

f(XIN) = 8 MHz

15.5

(Note)

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