AUTOMOTIVE 8XC196KB

Parameter

Minimum

Maximum

Units

Resolution

512

1024

Level

9

10

Bits

Absolute Error

0

g

6

LSBs

Full Scale Error

LSBs

Zero Offset Error

b

LSBs

Non-Linearity

0

g

4

LSBs

Differential Non-Linearity

1

a

2

LSBs

Channel-to-Channel Matching

g

01

0

g

1

LSBs

Repeatability

g

025

Temperature Coefficients

Offset

0009

Full Scale

0009

Differential Non-Linearity

0009

Off Isolation

b

60

Feedthrough

b

60

b

60

Input Resistance

1K

5K

DC Input Leakage

0

3

m

A

Sample Time (Prescaler onoff)

158

States (3)

Input Capacitance

3

pF

NOTES

These values are expected for most parts at 25 C but are not tested or guaranteed

An ‘‘LSB’’ as used here has a value of approximately 5 mV (See Automotive Handbook for AD glossary of terms

1 These values are not tested in production and are based on theoretical estimates andor laboratory test

2 DC to 100 KHz

16 MHz 333 ns

6 MHz

4 Multiplexer Break-Before-Make Guaranteed

80C196KB FUNCTIONAL DEVIATIONS

The 80C196KB has the following problems

1 The HSI unit has two errata one dealing with res-

olution and the other with first entries into the

FIFO

The HSI resolution is 9 states instead of 8 states

Events on the same line may be lost if they occur

faster than once every 9 state times

There is a mismatch between the 9 state time HSI

resolution and the 8 state time timer This causes

one time value to be unused every 9 timer counts

Events may receive a time-tag one count later

than expected because of this ‘‘skipped’’ time val-

ue

If the first two events into an empty FIFO (not

including the Holding Register) occur in the same

internal phase both are recorded with one time-

tag Otherwise if the second event occurs within

9 states after the first its time-tag is one count

later than the first’s If this is the ‘‘skipped’’ time

value the second event’s time-tag is 2 counts lat-

er than the first’s

If the FIFO and Holding Register are empty the

first event will transfer into the Holding Register

after 8 state times leaving the FIFO empty again

If the second event occurs after this time it will

act as a new first event into an empty FIFO

2 If an AD conversion in progress is aborted by

starting a new AD conversion results of the sec-

ond conversion may be inaccurate

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