Nxp Semiconductors OM11043 数据表

LPC1769_68_67_66_65_64_63

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© NXP Semiconductors N.V. 2014. All rights reserved.

 

 

Remark: The DAC is available on parts LPC1769/68/67/66/65/63. See 

 

The values of resistor components R

i1

 and R

i2

 vary with temperature and input voltage and are 

process-dependent (see 

).

Parasitic resistance and capacitance from the pad are not included in this figure.

R

i1

2 k

 to 5.2 k

Switch-on resistance for channel selection switch. Varies with 
temperature, input voltage, and process.

R

i2

100 

 to 600 

Switch-on resistance for the comparator input switch. Varies 
with temperature, input voltage, and process.

C1

750 fF

Parasitic capacitance from the ADC block level.

C2

65 fF

Parasitic capacitance from the ADC block level.

C3

2.2 pF

Sampling capacitor.

AD0[n]

750 fF

65 fF

Cia

2.2 pF

Rvsi

Ri2

100 Ω - 600 Ω

Ri1

2 kΩ - 5.2 kΩ

V

SS

VEXT

ADC

COMPARATOR

BLOCK

C1

C3

C2







E

D

differential linearity error

-

1

-

LSB

E

L(adj)

integral non-linearity

-

1.5

-

LSB

E

O

offset error

-

0.6

-

%

E

G

gain error

-

0.6

-

%

C

L

load capacitance

-

200

-

pF

R

L

load resistance

1

-

-

k

