tc7109a Microchip Technology Inc., tc7109a Datasheet - Page 22
tc7109a
Manufacturer Part Number
tc7109a
Description
12-bit ?-compatible Analog-to-digital Converters
Manufacturer
Microchip Technology Inc.
Datasheet
1.TC7109A.pdf
(30 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
TC7109A
Manufacturer:
TAM
Quantity:
12 388
Company:
Part Number:
tc7109aCKW
Manufacturer:
Microchip Technology
Quantity:
135
Company:
Part Number:
tc7109aCKW
Manufacturer:
Microchip Technology
Quantity:
10 000
Company:
Part Number:
tc7109aCKW713
Manufacturer:
Microchip Technology
Quantity:
10 000
Company:
Part Number:
tc7109aCLW
Manufacturer:
Microchip Technology
Quantity:
10 000
Company:
Part Number:
tc7109aCLW713
Manufacturer:
MICROCHIP
Quantity:
12 000
Company:
Part Number:
tc7109aCLW713
Manufacturer:
Microchip Technology
Quantity:
10 000
Company:
Part Number:
tc7109aCPL
Manufacturer:
Microchi
Quantity:
5 000
Part Number:
tc7109aCPL
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
TC7109/A
5.0
The output of integrating ADCs represents the integral,
or average, of an input voltage over a fixed period of
time. Compared with techniques in which the input is
sampled and held, the integrating converter averages
the effects of noise. A second important characteristic
is that time is used to quantize the answer, resulting in
extremely small non-linearity errors and no missing
output codes. The integrating converter also has very
good rejection of frequencies whose periods are an
integral multiple of the measurement period. This
feature can be used to advantage in reducing line
frequency noise (Figure ).
DS21456C-page 22
INTEGRATING CONVERTER
FEATURES
FIGURE 5-1:
Dual Slope Converter as a Function of
Frequency
30
20
10
0.1/t
0
t = Measurement
Period
Input Frequency
Normal Mode Rejection of
© 2006 Microchip Technology Inc.
1/t
10/t