LPC4350 datasheet(119/145 Pages) NXP

119 / 145 page

LPC4350_30_20_10

All information provided in this document is subject to legal disclaimers.

Objective data sheet

Rev. 2.1 — 23 September 2011

119 of 145

NXP Semiconductors

LPC4350/30/20/10

32-bit ARM Cortex-M4/M0 microcontroller

12. ADC/DAC electrical characteristics

[1]

Conditions: VSSA =0V, VDDA(3V3) =3.3 V.

[2]

The ADC is monotonic, there are no missing codes.

[3]

The differential linearity error (ED) is the difference between the actual step width and the ideal step width. See Figure 39.

[4]

The integral non-linearity (EL(adj)) is the peak difference between the center of the steps of the actual and the ideal transfer curve after

appropriate adjustment of gain and offset errors. See Figure 39.

[5]

The offset error (EO) is the absolute difference between the straight line which fits the actual curve and the straight line which fits the

ideal curve. See Figure 39.

[6]

The gain error (EG) is the relative difference in percent between the straight line fitting the actual transfer curve after removing offset

error, and the straight line which fits the ideal transfer curve. See Figure 39.

[7]

The absolute error (ET) is the maximum difference between the center of the steps of the actual transfer curve of the non-calibrated

ADC and the ideal transfer curve. See Figure 39.

[8]

See <tbd>.

[9]

Tamb = 25 C; maximum sampling frequency fs = 4.5 MHz and analog input capacitance Cia = 1pF.

[10] Input resistance Ri depends on the sampling frequency fs: Ri = 1 / (fs  Cia).

Table 22.

ADC characteristics

VDDA(3V3) over specified ranges; Tamb = 40 C to +85 C; ADC frequency 4.5 MHz; unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VIA

analog input voltage

VDDA(3V3)

Cia

analog input capacitance

<tbd>

differential linearity error

[1][2][3] -

<tbd>

LSB

EL(adj)

integral non-linearity

[1][4] -

<tbd>

LSB

offset error

[1][5] -



<tbd>

LSB

gain error

[1][6] -

<tbd>

absolute error

[1][7] -

<tbd>

LSB

Rvsi

voltage source interface

resistance

[8] -

<tbd>



input resistance

[9][10] -

<tbd>



fclk(ADC)

ADC clock frequency

<tbd>

MHz

fc(ADC)

ADC conversion frequency

<tbd>

kSamples/s

LPC4350 датащи(PDF) 119 Page - NXP Semiconductors

LPC4350 датащи(HTML) 119 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL