R7KA8M2AFDCAM datasheet(234/295 Pages) RENESAS

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Table 2.93

A/D conversion characteristics (SAR mode : DCDC mode) (5 of 6)

Conditions: AVCC: 2.7 to 3.63 V, VCC: 2.7 to 3.63 V, VREFH0/VREFH: 2.7 V to AVCC

Parameter

Min

Typ

Max

Unit

Test conditions

SAR

mode

Differential

input

Normal mode

High-speed

channels

(AN000 to

AN005)

(AN006 to

AN011)

Without

channel

dedicated

sample and

hold circuits

Conversion

time*1

0.16

—

µs

● ADCLK: 50 MHz

● Sampling time: 3 ADCLK

● Successive approximation time:

5 ADCLK

● Signal source impedance: 50 Ω

or less

Offset error

—

±2

±3.5

LSB

—

Full-scale

error

—

±2

±3.5

LSB

—

Absolute

accuracy

—

±3

±6

LSB

—

DNL

differential

nonlinearity

error *3

—

±0.75 ±1

LSB

—

INL integral

nonlinearity

error

—

±1.5

±2

LSB

—

High-speed

channels

(AN000 to

AN005)

(AN006 to

AN011)

With channel

dedicated

sample and

hold circuits

Conversion

time*2

1.00

—

µs

●

ADCLK: 50 MHz

●

Sampling time of channel-

dedicated sample-and-hold

circuits: 35 ADCLK

●

Hold mode switching time of

channel-dedicated sample-and-

hold circuits: 2 ADCLK

● Sampling time: 8 ADCLK

● Successive approximation time:

5 ADCLK

● Signal source impedance: 50 Ω

or less

Offset error

—

±1.5

±6.75 LSB

—

Full-scale

error

—

±1.5

±6.75 LSB

—

Absolute

accuracy

—

±3.5

±10.5 LSB

—

DNL

differential

nonlinearity

error *3

—

±1

-1 to

+1.5

LSB

—

INL integral

nonlinearity

error

—

±2.5

±3.5

LSB

—

RA8M2 Datasheet

2. Electrical Characteristics

R01DS0438EJ0130 Rev.1.30

Feb 27, 2026

Page 234 of 295

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