RX113 datasheet(103/131 Pages) RENESAS

103 / 131 page

R01DS0216EJ0120 Rev.1.20

Page 103 of 131

Sep 07, 2020

RX113 Group

5. Electrical Characteristics

Note:

The characteristics apply when no pin functions other than A/D converter input are used. Absolute accuracy includes

quantization errors. Offset error, full-scale error, DNL differential nonlinearity error, and INL integral nonlinearity error do not

include quantization errors.

Note 1. The conversion time is the sum of the sampling time and the comparison time. As the test conditions, the number of sampling

states is indicated.

Note 2. The value in parentheses indicates the sampling time.

Note 1. The internal reference voltage cannot be selected for input channels when AVCC0 < 2.0 V.

Note 2. The A/D internal reference voltage indicates the voltage when the internal reference voltage is input to the A/D converter.

Table 5.40

A/D Conversion Characteristics (4)

Conditions: 2.0 V

≤ VCC = VCC_USB ≤ 3.6 V, 2.0 V ≤ AVCC0 ≤ 3.6 V, VSS = AVSS0 = VSS_USB = 0 V,

ADHVREFCNT.OCSVSEL = 1 (internal reference voltage selected as high-side reference voltage),

PJ7PFS.ASEL = 0 (AVSS0 pin selected as low-side reference power supply ground pin)

Ta = –40 to +105°C

Item

Min.

Typ.

Max.

Unit

Test Conditions

Frequency

—

MHz

Resolution

—

Bit

Internal reference voltage

1.36

1.43

1.50

Conversion time*1

(Operation at

PCLKD = 2 MHz)

Permissible signal

source impedance

(Max.) = 5.0 k

(1.5)*2

—

µs

High-precision channel

ADCSR.ADHSC bit = 0

ADSSTRn.SST[7:0] bits = 02h

17.5

(3.0)*2

—

Normal-precision channel

ADCSR.ADHSC bit = 0

ADSSTRn.SST[7:0] bits = 05h

Analog input effective range

—

Internal

reference

voltage

Offset error

—

±24.0

LSB

DNL differential nonlinearity error

—

±16.0

—

LSB

INL integral nonlinearity error

—

±16.0

±32.0

LSB

Table 5.41

A/D Converter Channel Classification

Classification

Channel

Conditions

Remarks

High-precision channel

AN000 to AN007, AN021

AVCC0 = 1.8 to 3.6 V

Pins AN000 to AN007 and AN021

cannot be used as digital outputs

when the A/D converter is in use.

Normal-precision channel

AN008 to AN015

Internal reference voltage input channel

Internal reference voltage

AVCC0 = 2.0 to 3.6 V

Temperature sensor input channel

Temperature sensor output

AVCC0 = 2.0 to 3.6 V

Table 5.42

A/D Internal Reference Voltage Characteristics

Conditions: 2.0 V

≤ VCC = VCC_USB ≤ 3.6 V, 2.0 V ≤ AVCC0 ≤ 3.6 V*1, VSS = AVSS0 = VSS_USB = 0 V, T

a = –40 to +105°C

Item

Min.

Typ.

Max.

Unit

Test Conditions

Internal reference voltage input channel*2

1.36

1.43

1.50

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