Preliminary Product Information U18680EJ1V0PM00

19

µ PD78F9221CS, 78F9222CS

A/D Converter Characteristics (TA =

−40 to +85°C, 2.7 V ≤ AVREF ≤ VDD ≤ 5.5 V, VSS = 0 VNote 1)

Parameter

Symbol

Conditions

MIN.

TYP.

MAX.

Unit

Resolution

10

10

10

bit

4.0 V

≤ AVREF ≤ 5.5 V

±0.2

±0.4

%FSR

Overall error

Notes 2, 3

AINL

2.7 V

≤ AVREF < 4.0 V

±0.3

±0.6

%FSR

4.5 V

≤ AVREF ≤ 5.5 V

3.0

100

µs

4.0 V

≤ AVREF < 4.5 V

4.8

100

µs

2.85 V

≤ AVREF < 4.0 V

6.0

100

µs

Conversion time

tCONV

2.7 V

≤ AVREF < 2.85 V

14.0

100

µs

4.0 V

≤ AVREF ≤ 5.5 V

±0.4

%FSR

Zero-scale error

Notes 2, 3

Ezs

2.7 V

≤ AVREF < 4.0 V

±0.6

%FSR

4.0 V

≤ AVREF ≤ 5.5 V

±0.4

%FSR

Full-scale error

Notes 2, 3

Efs

2.7 V

≤ AVREF < 4.0 V

±0.6

%FSR

4.0 V

≤ AVREF ≤ 5.5 V

±2.5

LSB

Integral non-linearity error

Note 2

ILE

2.7 V

≤ AVREF < 4.0 V

±4.5

LSB

4.0 V

≤ AVREF ≤ 5.5 V

±1.5

LSB

Differential non-linearity error

Note 2

DLE

2.7 V

≤ AVREF < 4.0 V

±2.0

LSB

Analog input voltage

VAIN

VSS

Note 1

AVREF

V

Notes 1.

In the 78K0S/KA1+, VSS functions alternately as the ground potential of the A/D converter. Be sure to

connect VSS to a stabilized GND (= 0 V).

2.

Excludes quantization error (

±1/2 LSB).

3.

This value is indicated as a ratio (%FSR) to the full-scale value.

Caution

The conversion accuracy may be degraded when the analog input pin is used as an alternate I/O

port or if a port is changed during A/D conversion.