công cụ tìm kiếm bảng dữ liệu linh kiện điện tử
  Vietnamese  ▼
ALLDATASHEET.VN

X  

AD693AD bảng dữ liệu(PDF) 9 Page - Analog Devices

tên linh kiện AD693AD
Giải thích chi tiết về linh kiện  Loop-Powered 4.20 mA Sensor Transmitter
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  AD [Analog Devices]
Trang chủ  http://www.analog.com
Logo AD - Analog Devices

AD693AD bảng dữ liệu(HTML) 9 Page - Analog Devices

Back Button AD693AD Datasheet HTML 4Page - Analog Devices AD693AD Datasheet HTML 5Page - Analog Devices AD693AD Datasheet HTML 6Page - Analog Devices AD693AD Datasheet HTML 7Page - Analog Devices AD693AD Datasheet HTML 8Page - Analog Devices AD693AD Datasheet HTML 9Page - Analog Devices AD693AD Datasheet HTML 10Page - Analog Devices AD693AD Datasheet HTML 11Page - Analog Devices AD693AD Datasheet HTML 12Page - Analog Devices  
Zoom Inzoom in Zoom Outzoom out
 9 / 12 page
background image
AD693
REV. A
–9–
Figure 15. Local Powered Operation with 0–20 mA Output
OPTIONAL INPUT FILTERING
Input filtering is recommended for all applications of the
AD693 due to its low input signal range. An RC filter network
at each input of the signal amplifier is sufficient, as shown in
Figure 16. In the case of a resistive signal source it may be
necessary only to add the capacitors, as shown in Figure 18.
The capacitors should be placed as close to the AD693 as
possible. The value of the filter resistors should be kept low to
minimize errors due to input bias current. Choose the 3 dB
point of the filter high enough so as not to compromise the
bandwidth of the desired signal. The RC time constant of the
filter should be matched to preserve the ac common-mode
rejection.
Figure 16. Optional Input Filtering
INTERFACING PLATINUM RTDS
The AD693 has been specially configured to accept inputs from
100
Ω Platinum RTDs (Resistance Temperature Detectors).
Referring to Figure 17, the RTD and the temperature stable
100
Ω resistor form a feedback network around the Auxiliary
Amplifier resulting in a noninverting gain of (1 + RT/100
Ω),
where RT is the temperature dependent resistance of the RTD.
The noninverting input of the Auxiliary Amplifier (Pin 2) is
then driven by the 75 mV signal from the Voltage Divider (Pin
4). When the RTD is at 0, its 100
Ω resistance results in an
amplifier gain of +2 causing VX to be 150 mV. The Signal
Amplifier compares this voltage to the 150 mV output (Pin 3) so
that zero differential signal results. As the temperature (and
therefore, the resistance) of the RTD increases, VX will likewise
increase according to the gain relationship. The difference
between this voltage and the zero degree value of 150 mV drives
the Signal Amp to modulate the loop current. The AD693 is
precalibrated such that the full 4-20mA output span corresponds
to a 0 to 104
°C range in the RTD. (This assumes the European
Standard of
α = 0.00385.) A total of 6 precalibrated ranges for
three-wire (or two-wire) RTDs are available using only the pin
strapping options as shown in Table I.
A variety of other temperature ranges can be realized by using
different application voltages. For example, loading the Voltage
Divider with a 1.5 k
Ω resistor from Pin 3 to Pin 6 (common)
will approximately halve the original application voltages and
allow for a doubling of the range of resistance (and therefore,
temperature) required to fill the two standard spans. Likewise,
Table I. Precalibrated Temperature
Range Options Using a European
Standard 100
RTD and the AD693
Temperature
Range
Pin Connections
0 to + 104
°C
12 to 13
0 to +211
°C
12 to 13, and
15 to 16
+25
°C to +130°C 12 to 14
+51
°C to +266°C 12 to 14, and
15 to 16
–50
°C to +51°C
12 to 11
–100
°C to +104°C 12 to 11 and
15 to 16
Figure 17. 0-to-104
°C Direct Three-Wire 100 Ω RTD lnterface, 4-20mA Output


Số phần tương tự - AD693AD

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
Analog Devices
AD693AD AD-AD693AD Datasheet
462Kb / 12P
   Loop-Powered 4??0 mA Sensor Transmitter
REV. A
More results

Mô tả tương tự - AD693AD

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
Analog Devices
AD693 AD-AD693_15 Datasheet
499Kb / 12P
   Loop-Powered 4-20 mA Sensor Transmitter
REV. A
AD693BQ AD-AD693BQ Datasheet
462Kb / 12P
   Loop-Powered 4??0 mA Sensor Transmitter
REV. A
logo
MORNSUN Science& Techno...
T1100L-F MORNSUN-T1100L-F Datasheet
265Kb / 2P
   PASSIVE LOOP-POWERED ISOLATION TRANSMITTER
logo
PHOENIX CONTACT
108133 PHOENIX-108133 Datasheet
4Mb / 85P
   Loop-powered dual-channel temperature transmitter
2017-09-21
logo
Analog Devices
AD421BNZ AD-AD421BNZ Datasheet
173Kb / 14P
   Loop-Powered 4 mA to 20 mA DAC
REV. C
AD421BRZRL AD-AD421BRZRL Datasheet
173Kb / 14P
   Loop-Powered 4 mA to 20 mA DAC
REV. C
AD421 AD-AD421 Datasheet
171Kb / 14P
   Loop-Powered 4 mA to 20 mA DAC
REV. C
AD421 AD-AD421_15 Datasheet
173Kb / 14P
   Loop-Powered 4 mA to 20 mA DAC
REV. C
logo
Maxim Integrated Produc...
MAX12900EVKIT MAXIM-MAX12900EVKIT Datasheet
2Mb / 21P
   Loop-powered 4mA–20mA Transmitter with PWM Inputs
Rev 1; 11/17
MAX5216LPT MAXIM-MAX5216LPT Datasheet
1Mb / 18P
   Reference Design of 4??0mA Loop-Powered Transmitter
Rev 0; 5/13
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12


bảng dữ liệu tải về

Go To PDF Page


Link URL




Chính sách bảo mật
ALLDATASHEET.VN
Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không?  [ DONATE ] 

Alldatasheet là   |   Quảng cáo   |   Liên lạc với chúng tôi   |   Chính sách bảo mật   |   Trao đổi link   |   Tìm kiếm theo nhà sản xuất
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