LPC2292 datasheet(32/53 Pages) NXP

32 / 53 page

LPC2292_2294_7

Product data sheet

Rev. 7 — 4 December 2008

32 of 53

NXP Semiconductors

LPC2292/LPC2294

16/32-bit ARM microcontrollers with external memory interface

[1]

Typical ratings are not guaranteed. The values listed are at room temperature (+25

°C), nominal supply voltages.

[2]

Internal rail.

[3]

External rail.

[4]

Including voltage on outputs in 3-state mode.

[5]

VDD(3V3) supply voltages must be present.

[6]

3-state outputs go into 3-state mode when VDD(3V3) is grounded.

[7]

Accounts for 100 mV voltage drop in all supply lines.

[8]

Allowed as long as the current limit does not exceed the maximum current allowed by the device.

[9]

Minimum condition for VI = 4.5 V, maximum condition for VI = 5.5 V.

[10] Applies to P1[25:16].

[11] See the

LPC2119/2129/2194/2292/2294 User Manual.

[12] To VSS.

[1]

Conditions: VSSA =0V, VDDA = 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 5.

[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 5.

[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 5.

[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 5.

[7]

The absolute voltage 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 5.

Oscillator pins

Vi(XTAL1)

input voltage on pin XTAL1

1.8

Vo(XTAL2)

output voltage on pin

XTAL2

1.8

Table 7.

Static characteristics …continued

Tamb = −40 °C to +125 °C, unless otherwise speciﬁed.

Symbol

Parameter

Conditions

Min

Typ[1]

Max

Unit

Table 8.

ADC static characteristics

VDDA = 2.5 V to 3.6 V; Tamb = −40 °C to +125 °C unless otherwise speciﬁed. ADC frequency 4.5 MHz.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VIA

analog input voltage

VDDA

Cia

analog input

capacitance

--1

differential linearity

error

[1][2][3]

±1

LSB

EL(adj)

integral non-linearity

[1][4] --

±2

LSB

offset error

[1][5] --

±3

LSB

gain error

[1][6] --

±0.5

absolute error

[1][7] --

±4

LSB

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