HC908LJ12AD/D

6

Addendum to MC68HC908LJ12 Technical Data

MOTOROLA

Figure 1. Typical Internal Oscillator Frequency

ADC Electrical

Characteristics

20

23

45

6

70

60

50

40

30

–40

°C

+25

°C

+85

°C

0

10

Table 6. ADC Electrical Characteristics (2.4 to 3.3V)

Characteristic

Symbol

Min

Max

Unit

Notes

Supply voltage

2.4

3.3

V

Input range

0

V

Resolution

10

10

bits

1,024 counts

Absolute accuracy

See Figure 2 and Figure 3.

Includes quantization.

±1 ADC count = ±0.5 LSB

ADC internal clock

32 k

2 M

Hz

Conversion range

V

ADC voltage

reference high

—

V

ADC voltage

reference low

—V

Conversion time

16

17

cycles

Sample time

5—

cycles

Monotonically

Guaranteed

Zero input reading

000

001

HEX

Full-scale reading

3FC

3FF

HEX

Input capacitance

—

20

pF

Not tested.

Input impedance

20M

—

Ω

Measured at 5V

—

1.6

mA

Not tested.

Freescale Semiconductor, Inc.

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