ADC0816CCN/NOPB National Semiconductor, ADC0816CCN/NOPB Datasheet - Page 11

• Manufacturer Part Number: ADC0816CCN/NOPB
• Description: IC ADC 8BIT W/16CH MUX 40-DIP
• Manufacturer: National Semiconductor

Specifications of ADC0816CCN/NOPB

• Number Of Bits: 8
• Sampling Rate (per Second): 10k
• Data Interface: Parallel
• Number Of Converters: 1
• Power Dissipation (max): 875mW
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: 40-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *ADC0816CCN; *ADC0816CCN/NOPB; ADC0816; ADC0816CCN

3.0 Converter Equations
The transition between adjacent codes N and N + 1 is given
by:
The center of an output code N is given by:
The output code N for an arbitrary input are the integers within
the range:
where: V
(2)
(3)
(4)
IN
= Voltage at comparator input
FIGURE 13. Symmetrically Centered Reference
11
4.0 Analog Comparator Inputs
The dynamic comparator input current is caused by the peri-
odic switching of on-chip stray capacitances These are con-
nected alternately to the output of the resistor ladder/switch
tree network and to the comparator input as part of the oper-
ation of the chopper stabilized comparator.
The average value of the comparator input current varies di-
rectly with clock frequency and with V
6.
If no filter capacitors are used at the analog or comparator
inputs and the signal source impedances are low, the com-
parator input current should not introduce converter errors, as
the transient created by the capacitance discharge will die out
before the comparator output is strobed.
If input filter capacitors are desired for noise reduction and
signal conditioning they will tend to average out the dynamic
comparator input current. It will then take on the characteris-
tics of a DC bias current whose effect can be predicted
conventionally. See AN-258 for further discussion.
V
V
V
REF
REF
TUE
V
REF
= Voltage at Ref(+)
= Voltage at Ref(−)
= Total unadjusted error voltage (typically
(+) ÷512)
527715
IN
as shown in Figure
www.national.com