R32C121 datasheet(100/113 Pages) RENESAS

100 / 113 page

REJ03B0237-0050 Rev.0.50 Jul 31, 2008

Page 100 of 111

Under development

Preliminary Specification

This is a preliminary specification and is subject to change.

R32C/121 Group

5. Electrical Characteristics

VCC =3.3 V

Table 5.39

A/D Conversion Characteristics (VCC= AVCC = VREF = 3.0 to 3.6 V, VSS =AVSS =0 V,

Ta =Topr, and f(BCLK) = 32 MHz, unless otherwise noted)

Symbol

Characteristic

Measurement condition

Value

Unit

Min.

Typ.

Max.

—

Resolution

VREF = VCC

Bits

—

Absolute error

VREF = VCC = 3.3 V

AN_0 to AN_7,

AN0_0 to AN0_7,

AN2_0 to AN2_7,

ANEX0, ANEX1

±5

LSB

External op-amp

connection mode

±7

LSB

INL

Integral non-linearity

error

VREF = VCC = 3.3 V

AN_0 to AN_7,

AN0_0 to AN0_7,

AN2_0 to AN2_7,

ANEX0, ANEX1

±5

LSB

External op-amp

connection mode

±7

LSB

DNL

Differential non-linearity VREF = VCC = 3.3 V

±1

LSB

—Offset error

±3

LSB

—

Gain error

±3

LSB

RLADDER Resistor ladder

VREF = VCC

420

tCONV

Conversion time

(10 bits)

φAD = 10 MHz,

with sample & hold function

3.3

µs

tCONV

Conversion time

(8 bits)

φAD = 10 MHz,

with sample & hold function

2.8

µs

tSAMP

Sampling time

φAD = 10 MHz

0.3

µs

VIA

Analog input voltage

VREF

φAD

Operating clock

frequency

without sample & hold function

0.125

MHz

with sample & hold function

MHz

RPU(AST) Pull-up resistor for

open-circuit detection

510

RPD(AST) Pull-down resistor for

open-circuit detection

510

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