ADC0804LCN/NOPB National Semiconductor, ADC0804LCN/NOPB Datasheet - Page 17

IC ADC 8BIT MPU COMPAT 20-DIP

ADC0804LCN/NOPB

Manufacturer Part Number
ADC0804LCN/NOPB
Description
IC ADC 8BIT MPU COMPAT 20-DIP
Manufacturer
National Semiconductor
Datasheet

Specifications of ADC0804LCN/NOPB

Number Of Bits
8
Number Of Converters
1
Power Dissipation (max)
875mW
Voltage Supply Source
Single Supply
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Package / Case
20-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
*ADC0804LCN
*ADC0804LCN/NOPB
ADC0804

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ADC0804LCN/NOPB
Manufacturer:
MICRON
Quantity:
1 000
Functional Description
of analog input voltage that provides the same digital output
code) is therefore 1 LSB wide.
Figure 2 shows a worst case error plot for the ADC0801. All
center-valued inputs are guaranteed to produce the correct
output codes and the adjacent risers are guaranteed to be
no closer to the center-value points than
words, if we apply an analog input equal to the center-value
digital code. The maximum range of the position of the code
transition is indicated by the horizontal arrow and it is guar-
anteed to be no more than
The error curve of Figure 3 shows a worst case error plot for
the ADC0802. Here we guarantee that if we apply an analog
input equal to the LSB analog voltage center-value the A/D
will produce the correct digital code.
±
±
1
1
2
4
LSB from the ideal center-values. Each tread (the range
LSB, we guarantee that the A/D will produce the correct
Transfer Function
Transfer Function
1
2
LSB.
FIGURE 1. Clarifying the Error Specs of an A/D Converter
FIGURE 2. Clarifying the Error Specs of an A/D Converter
DS005671-83
DS005671-81
(Continued)
±
1
4
Accuracy=
LSB. In other
Accuracy=
±
0 LSB: A Perfect A/D
17
±
1
Next to each transfer function is shown the corresponding
error plot. Many people may be more familiar with error plots
than transfer functions. The analog input voltage to the A/D
is provided by either a linear ramp or by the discrete output
steps of a high resolution DAC. Notice that the error is
continuously displayed and includes the quantization uncer-
tainty of the A/D. For example the error at point 1 of Figure 1
is +
advance of the center-value of the tread. The error plots
always have a constant negative slope and the abrupt up-
side steps are always 1 LSB in magnitude.
4
LSB
1
2
LSB because the digital code appeared
Error Plot
Error Plot
DS005671-84
DS005671-82
www.national.com
1
2
LSB in

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