89LPC925 datasheet(45/49 Pages) PHILIPS

45 / 49 page

Philips Semiconductors

P89LPC924/925

8-bit microcontrollers with accelerated two-clock 80C51 core

Product data

Rev. 03 — 15 December 2004

45 of 49

9397 750 14471

12. Comparator electrical characteristics

[1]

This parameter is characterized, but not tested in production.

13. A/D converter electrical characteristics

Table 12:

Comparator electrical characteristics

VDD = 2.4 V to 3.6 V, unless otherwise speciﬁed.

Tamb = −40 °Cto+85 °C for industrial, unless otherwise speciﬁed.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VIO

offset voltage comparator inputs

±20

VCR

common mode range comparator inputs

VDD − 0.3

CMRR

common mode rejection ratio

[1]

−50

response time

250

500

comparator enable to output valid

µs

IIL

input leakage current, comparator

0 < VIN <VDD

±10

µA

Table 13:

A/D converter electrical characteristics

VDD = 2.4 V to 3.6 V, unless otherwise speciﬁed.

Tamb = −40 °Cto+85 °C for industrial, unless otherwise speciﬁed.

All limits valid for an external source impedance of less than 10 k

Ω.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

AVIN

analog input voltage

VSS − 0.2 -

VSS + 0.2

CIA

analog input capacitance

DNL

differential non-linearity

±1

LSB

INL

integral non-linearity

±1

LSB

OSe

offset error

±2

LSB

gain error

±1%

Tue

total unadjusted error

±2

LSB

MCTC

channel-to-channel matching

±1

LSB

αct(port)

crosstalk between port inputs

0 to 100 kHz

−60

SRin

input slew rate

100

V/ms

tADC

conversion time

A/D enabled

ADC

clocks

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