R7FA6T2AB3CFM datasheet(60/93 Pages) RENESAS

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Table 2.34

A/D conversion characteristics (Common) (2 of 2)

Parameter

Min

Typ

Max

Unit

Test

conditions

Channel-dedicated

sample-and-hold

circuits

Sampling time during calibration

400

—

Sampling time during A/D conversion

400

—

Hold mode switching time

—

Hold time

—

µs

Operation

stabilization time

A/D start-up time

2.0

—

µs

Channel-dedicated sample-and-hold circuits start-up time

2.0

—

µs

A/D shut-down time

1.0

—

µs

Analog input voltage range

VREFL0

—

VREFH0

Note:

tADcyc : ADCLK cycle

Table 2.35

A/D conversion characteristics (1 of 2)

Parameter

Min

Typ

Max Unit Test conditions

Resolution

—

bit

Channel-dedicated

sample-and-hold

circuits in use

(AN000 to AN005)

(AN006 to AN011)

Conversion time*1

(operation at

ADCLK = 50 MHz)

Permissible

signal source

impedance

Max. = 50 Ω

Normal

conversion

0.70 —

—

µs

● Sampling time of channel-

dedicated sample-and-hold

circuits: 20 ADCLK

● Hold mode switching time of

channel-dedicated sample-

and-hold circuits: 2 ADCLK

● Sampling time: 8 ADCLK

● Successive approximation

time: 5 ADCLK

When using

averaging mode

(4-time

conversion)

2.80 —

—

µs

Offset error

—

±0.5 ±1.0 LSB 　

Full-scale error

—

±1.5 ±1.5 LSB 　

Absolute accuracy

Normal conversion

—

±5.0 ±7.0 LSB 　

When using averaging mode

(4-time conversion)

—

±4.0 ±5.0 LSB 　

Total unadjusted error (TUE)

—

±3.0 ±3.4 LSB Excludes quantization error

(±0.5LSB).

DNL differential nonlinearity error

—

-1 to

+1.5

-1 to

+2.5

LSB 　

INL integral nonlinearity error

—

±2.0 ±3.0 LSB 　

High-speed

channels

(AN000 to AN005)

(AN006 to AN011)

(AN018 to AN019)*2

Conversion time*1

(operation at

ADCLK = 50 MHz)

Permissible

signal source

impedance

Max. = 50 Ω

Normal

conversion

0.16 —

—

µs

● Sampling time: 3 ADCLK

● Successive approximation

time: 5 ADCLK

When using

averaging mode

(4-time

conversion)

0.64 —

—

µs

Offset error

—

±1.0 ±3.0 LSB 　

Full-scale error

—

±1.5 ±2.5 LSB 　

Absolute accuracy

Normal conversion

—

±5.5 ±7.0 LSB 　

When using averaging mode

(4-time conversion)

—

±4.5 ±5.5 LSB 　

Total unadjusted error (TUE)

— ±3.5 ±4.0 LSB Excludes quantization error

(±0.5LSB).

DNL differential nonlinearity error

—

-1 to

+1.5

-1 to

+2.5

LSB 　

INL integral nonlinearity error

—

±2.0 ±3.0 LSB 　

RA6T2 Datasheet

2. Electrical Characteristics

R01DS0400EJ0120 Rev.1.20

Mar 31, 2022

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