P89LPC9151FDH datasheet(82/91 Pages) NXP

82 / 91 page

P89LPC9151_61_71_2

Product data sheet

Rev. 02 — 9 February 2010

82 of 91

NXP Semiconductors

P89LPC9151/9161/9171

8-bit microcontroller with 8-bit ADC

12.2 ADC electrical characteristics

Table 21.

ADC/temperature sensor electrical characteristics

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

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

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

Ω.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VDDA(ADC)

ADC analog supply voltage

VSSA

analog ground voltage

VIA

analog input voltage

VSS − 0.2 -

VDD + 0.2

Cia

analog input capacitance

differential linearity error

±1

LSB

EL(adj)

integral non-linearity

±1

LSB

offset error

±2

LSB

gain error

±1

Eu(tot)

total unadjusted error

±2

LSB

MCTC

channel-to-channel matching

±1

LSB

ct(port)

crosstalk between port inputs

0 kHz to 100 kHz

−60

SRin

input slew rate

100

V/ms

Tcy(ADC)

ADC clock cycle time

111

2000

tADC

ADC conversion time

ADC enabled

13Tcy(ADC)

μs

Fig 44. ADC conversion timing

adc_clk

serial_data_out

1234

567

clk

ADCDATA_REG

ADCDATA

002aae371

start trigger

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