поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

AD7817BRZ-REEL датащи(PDF) 9 Page - Analog Devices

номер детали AD7817BRZ-REEL
подробное описание детали  Single- and 4-Channel, 9 us, 10-Bit ADCs with On-Chip Temperature Sensor
Download  20 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

AD7817BRZ-REEL датащи(HTML) 9 Page - Analog Devices

Back Button AD7817BRZ-REEL Datasheet HTML 5Page - Analog Devices AD7817BRZ-REEL Datasheet HTML 6Page - Analog Devices AD7817BRZ-REEL Datasheet HTML 7Page - Analog Devices AD7817BRZ-REEL Datasheet HTML 8Page - Analog Devices AD7817BRZ-REEL Datasheet HTML 9Page - Analog Devices AD7817BRZ-REEL Datasheet HTML 10Page - Analog Devices AD7817BRZ-REEL Datasheet HTML 11Page - Analog Devices AD7817BRZ-REEL Datasheet HTML 12Page - Analog Devices AD7817BRZ-REEL Datasheet HTML 13Page - Analog Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 9 / 20 page
background image
REV. C
AD7816/AD7817/AD7818
–9–
PIN CONFIGURATIONS
SOIC/MSOP (AD7816)
1
2
3
4
8
7
6
5
TOP VIEW
(Not to Scale)
AD7816
CONVST
DIN/OUT
SCLK
RD/
WR
VDD
GND
REFIN
OTI
SOIC/MSOP (AD7818)
1
2
3
4
8
7
6
5
TOP VIEW
(Not to Scale)
AD7818
CONVST
DIN/OUT
SCLK
RD/
WR
VDD
GND
VIN
OTI
TERMINOLOGY
Signal-to-(Noise + Distortion) Ratio
This is the measured ratio of signal-to-(noise + distortion) at the
output of the A/D converter. The signal is the rms amplitude of
the fundamental. Noise is the rms sum of all nonfundamental
signals up to half the sampling frequency (fS/2), excluding dc.
The ratio is dependent upon the number of quantization levels in
the digitization process; the more levels, the smaller the quantiza-
tion noise. The theoretical signal-to-(noise + distortion) ratio for
an ideal N-bit converter with a sine wave input is given by:
Signal-to-(Noise + Distortion) = (6.02 N + 1.76) dB
Thus for a 10-bit converter, this is 62 dB.
Total Harmonic Distortion
Total harmonic distortion (THD) is the ratio of the rms sum of
harmonics to the fundamental. For the AD7891 it is defined as:
THD (dB)
= 20 log
V
2
2
+V
3
2
+V
4
2
+V
5
2
+V
6
2
V1
where V1 is the rms amplitude of the fundamental and V2, V3,
V4, V5, and V6 are the rms amplitudes of the second through the
sixth harmonics.
Peak Harmonic or Spurious Noise
Peak harmonic or spurious noise is defined as the ratio of the
rms value of the next largest component in the ADC output
spectrum (up to fS/2 and excluding dc) to the rms value of the
fundamental. Normally, the value of this specification is deter-
mined by the largest harmonic in the spectrum, but for parts
where the harmonics are buried in the noise floor, it will be a
noise peak.
Intermodulation Distortion
With inputs consisting of sine waves at two frequencies, fa and
fb, any active device with nonlinearities will create distortion
products at sum and difference frequencies of mfa
nfb where
m, n = 0, 1, 2, 3, etc. Intermodulation terms are those for which
neither m nor n are equal to zero. For example, the second
order terms include (fa + fb) and (fa – fb), while the third order
terms include (2fa + fb), (2fa – fb), (fa + 2fb) and (fa – 2fb).
AD7816 AND AD7818 PIN FUNCTION DESCRIPTIONS
Pin
Mnemonic
Description
1
CONVST
Logic Input Signal. The convert start signal initiates a 10-bit analog-to-digital conversion on the
falling edge of the this signal. The falling edge of this signal places the track/hold in hold mode.
The track/hold goes into track mode again at the end of the conversion. The state of the
CONVST signal is checked at the end of a conversion. If it is logic low, the AD7816 and
AD7818 will power down—see Operating Mode section of the data sheet.
2
OTI
Logic Output. The Overtemperature Indicator (
OTI) is set logic low if the result of a conversion
on Channel 0 (Temperature Sensor) is greater that an 8-bit word in the Overtemperature Register
(OTR). The signal is reset at the end of a serial read operation, i.e., a rising RD/
WR edge.
3
GND
Analog and Digital Ground.
4 (AD7818)
VIN
Analog Input Channel. The input channel is single-ended with respect to GND. The input
channel can convert voltage signals in the range 0 V to 2.5 V. The input channel is selected by
writing to the Address Register of the AD7818—see Control Byte section.
4 (AD7816)
REFIN
Reference Input. An external 2.5 V reference can be connected to the AD7816 at this pin. To
enable the on-chip reference the REFIN pin should be tied to AGND. If an external reference is
connected to the AD7816, the internal reference will shut down.
5VDD
Positive supply voltage, 2.7 V to 5.5 V.
6DIN/OUT
Logic Input and Output. Serial data is clocked in and out of the AD7816/AD7818 at this pin.
7
SCLK
Clock Input for the Serial Port. The serial clock is used to clock data into and out of the
AD7816/AD7818. Data is clocked out on the falling edge and clocked in on the rising edge.
8
RD/
WR
Logic Input. The read/write signal is used to indicate to the AD7816 and AD7818 whether
the next data transfer operation is a read or a write. The RD/
WR should be set logic high for a
read operation and logic low for a write.


Аналогичный номер детали - AD7817BRZ-REEL

производительномер деталидатащиподробное описание детали
logo
Analog Devices
AD7817BRZ-REEL AD-AD7817BRZ-REEL Datasheet
1Mb / 20P
   Dual, Low Power CMOS, Analog Front End with DSP Microcomputer
REV. D
AD7817BRZ-REEL7 AD-AD7817BRZ-REEL7 Datasheet
1Mb / 20P
   Dual, Low Power CMOS, Analog Front End with DSP Microcomputer
REV. D
More results

Аналогичное описание - AD7817BRZ-REEL

производительномер деталидатащиподробное описание детали
logo
Analog Devices
AD7416 AD-AD7416_10 Datasheet
396Kb / 24P
   10-Bit Digital Temperature Sensor (AD7416) and Four Single-Channel ADCs
Rev. I
AD7997 AD-AD7997 Datasheet
1Mb / 32P
   8-Channel, 10- and 12-Bit ADCs with I2CCompatible
REV. 0
AD7934BRUZ-REEL7 AD-AD7934BRUZ-REEL7 Datasheet
768Kb / 32P
   4-Channel, 1.5 MSPS, 10-Bit and 12-Bit Parallel ADCs with a Sequencer
REV. B
AD7933 AD-AD7933_15 Datasheet
768Kb / 32P
   4-Channel, 1.5 MSPS, 10-Bit and 12-Bit Parallel ADCs with a Sequencer
REV. B
AD7933 AD-AD7933 Datasheet
1Mb / 32P
   4-Channel, 1.5 MSPS, 12-Bit and 10-Bit Parallel ADCs with a Sequencer
Rev.PrG
AD7934 AD-AD7934_15 Datasheet
768Kb / 32P
   4-Channel, 1.5 MSPS, 10-Bit and 12-Bit Parallel ADCs with a Sequencer
REV. B
logo
Maxim Integrated Produc...
MAX1082 MAXIM-MAX1082 Datasheet
315Kb / 24P
   300ksps/400ksps, Single-Supply, 4-Channel, Serial 10-Bit ADCs with Internal Reference
19-1690 Rev 0; 5/00
MAX1082 MAXIM-MAX1082_V01 Datasheet
250Kb / 23P
   300ksps/400ksps, Single-Supply, 4-Channel, Serial 10-Bit ADCs with Internal Reference
2014
MAX1082 MAXIM-MAX1082_12 Datasheet
358Kb / 23P
   300ksps/400ksps, Single-Supply, 4-Channel, Serial 10-Bit ADCs with Internal Reference
Rev 1; 9/12
logo
Analog Devices
AD7776 AD-AD7776_02 Datasheet
550Kb / 12P
   LC2MOS, High Speed 1-,4-,and 8-Channel 10-Bit ADCs
REV. A
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20


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