поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

TC7107ACLP датащи(PDF) 9 Page - Microchip Technology

номер детали TC7107ACLP
подробное описание детали  3-1/2 Digit Analog-to-Digital Converters
Download  34 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

TC7107ACLP датащи(HTML) 9 Page - Microchip Technology

Back Button TC7107ACLP Datasheet HTML 5Page - Microchip Technology TC7107ACLP Datasheet HTML 6Page - Microchip Technology TC7107ACLP Datasheet HTML 7Page - Microchip Technology TC7107ACLP Datasheet HTML 8Page - Microchip Technology TC7107ACLP Datasheet HTML 9Page - Microchip Technology TC7107ACLP Datasheet HTML 10Page - Microchip Technology TC7107ACLP Datasheet HTML 11Page - Microchip Technology TC7107ACLP Datasheet HTML 12Page - Microchip Technology TC7107ACLP Datasheet HTML 13Page - Microchip Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 9 / 34 page
background image
© 2008 Microchip Technology Inc.
DS21455D-page 9
TC7106/A/TC7107/A
4.0
ANALOG SECTION
In addition to the basic signal integrate and de-
integrate cycles discussed, the circuit incorporates an
auto-zero cycle. This cycle removes buffer amplifier,
integrator, and comparator offset voltage error terms
from the conversion. A true digital zero reading results
without adjusting external potentiometers. A complete
conversion consists of three cycles: an auto-zero,
signal integrate, and reference integrate cycle.
4.1
Auto-Zero Cycle
During the auto-zero cycle, the differential input signal
is disconnected from the circuit by opening internal
analog gates. The internal nodes are shorted to analog
common (ground) to establish a zero input condition.
Additional analog gates close a feedback loop around
the integrator and comparator. This loop permits
comparator offset voltage error compensation. The
voltage level established on CAZ compensates for
device offset voltages. The offset error referred to the
input is less than 10 µV.
The auto-zero cycle length is 1000 to 3000 counts.
4.2
Signal Integrate Cycle
The auto-zero loop is entered and the internal
differential inputs connect to VIN+ and VIN-. The
differential input signal is integrated for a fixed time
period. The TC7106/TC7106A signal integration period
is 1000 clock periods or counts. The externally set
clock frequency is divided by four before clocking the
internal counters.
The integration time period is:
EQUATION 4-1:
The differential input voltage must be within the device
Common mode range when the converter and
measured system share the same power supply
common (ground). If the converter and measured
system do not share the same power supply common,
VIN- should be tied to analog common.
Polarity is determined at the end of signal integrate
phase. The sign bit is a true polarity indication, in that
signals less than 1 LSB are correctly determined. This
allows precision null detection limited only by device
noise and auto-zero residual offsets.
4.3
Reference Integrate Phase
The third phase is reference integrate or de-integrate.
VIN- is internally connected to analog common and
VIN+ is connected across the previously charged
reference capacitor. Circuitry within the chip ensures
that the capacitor will be connected with the correct
polarity to cause the integrator output to return to zero.
The time required for the output to return to zero is
proportional to the input signal and is between 0 and
2000 counts.
The digital reading displayed is:
EQUATION 4-2:
Where:
FOSC
=
Externally set clock frequency
T
SI
4
F
OSC
-------------
1000
×
=
1000
V
IN
V
REF
-------------
=


Аналогичный номер детали - TC7107ACLP

производительномер деталидатащиподробное описание детали
logo
TelCom Semiconductor, I...
TC7107ACLW TELCOM-TC7107ACLW Datasheet
296Kb / 19P
   3-1/2 DIGIT A/D CONVERTERS
logo
Microchip Technology
TC7107ACLW MICROCHIP-TC7107ACLW Datasheet
623Kb / 26P
   3-1/2 Digit Analog-to-Digital Converters
2002
More results

Аналогичное описание - TC7107ACLP

производительномер деталидатащиподробное описание детали
logo
Microchip Technology
TC7106 MICROCHIP-TC7106_06 Datasheet
534Kb / 32P
   3-1/2 Digit Analog-to-Digital Converters
2006
TC7126 MICROCHIP-TC7126_06 Datasheet
429Kb / 26P
   3-1/2 Digit Analog-to-Digital Converters
2006
TC7106 MICROCHIP-TC7106 Datasheet
623Kb / 26P
   3-1/2 Digit Analog-to-Digital Converters
2002
TC7126 MICROCHIP-TC7126 Datasheet
553Kb / 22P
   3-1/2 Digit Analog-to-Digital Converters
2002
logo
TelCom Semiconductor, I...
TC7126 TELCOM-TC7126 Datasheet
198Kb / 13P
   3-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTERS
logo
Microchip Technology
TC7126 MICROCHIP-TC7126_13 Datasheet
330Kb / 28P
   3-1/2 Digit Analog-to-Digital Converters
11/29/12
logo
TelCom Semiconductor, I...
TC7116 TELCOM-TC7116 Datasheet
218Kb / 14P
   3-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTERS WITH HOLD
logo
Microchip Technology
TC7116 MICROCHIP-TC7116_06 Datasheet
425Kb / 24P
   3-1/2 Digit Analog-to-Digital Converters with Hold
2006
TC7116 MICROCHIP-TC7116_13 Datasheet
322Kb / 26P
   3-1/2 Digit Analog-to-Digital Converters with Hold
11/29/12
logo
TelCom Semiconductor, I...
TC7136 TELCOM-TC7136 Datasheet
192Kb / 12P
   LOW POWER, 3-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTERS
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34


датащи скачать

Go To PDF Page


ссылки URL




Конфиденциальность
ALLDATASHEETRU.COM
Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   обмен ссыками   |   поиск по производителю
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com