參數(shù)資料
型號(hào)： TMP01EP
廠商： ANALOG DEVICES INC
元件分類(lèi)： 溫度/濕度傳感器
英文描述： Low Power, Programmable Temperature Controller
中文描述： ANALOG TEMP SENSOR-VOLTAGE, 2.49-2.5V, RECTANGULAR, THROUGH HOLE MOUNT
封裝： MINI, PLASTIC, DIP-8
文件頁(yè)數(shù)： 12/16頁(yè)
文件大?。?/td> 377K
代理商： TMP01EP
TMP01
REV. C
–12–
Buffering the T emperature Output Pin
T he VPT AT sensor output is a low impedance dc output volt-
age with a 5 mV/K temperature coefficient, and is useful in a
number of measurement and control applications. In many ap-
plications, this voltage needs to be transmitted to a central loca-
tion for processing. T he buffered VPT AT voltage output is
capable of 500
μ
A drive into 50 pF (max). As mentioned in the
discussion above regarding buffering circuits for the VREF out-
put, it is useful to consider external amplifiers for interfacing
VPT AT to external circuitry to ensure accuracy, and to mini-
mize loading which could create dissipation-induced tempera-
ture sensing errors. An excellent general-purpose buffer circuit
using the OP177 is shown in Figure 17 which is capable of driv-
ing over 10 mA, and will remain stable under capacitive loads of
up to 0.1
μ
F. Other interfacing ideas are shown below.
Differential T ransmitter
In noisy industrial environments, it is difficult to send an accu-
rate analog signal over a significant distance. However, by send-
ing the signal differentially on a wire pair, these errors can be
significantly reduced. Since the noise will be picked up equally
on both wires, a receiver with high common-mode input rejec-
tion can be used to cancel out the noise very effectively at the
Figure 17. Buffer VPTAT to Handle Difficult Loads
receiving end. Figure 18 shows two amplifiers being used to
send the signal differentially, and an excellent differential
receiver, the AMP03, which features a common-mode rejection
ratio of 95 dB at dc and very low input and drift errors.
0.1
μ
F
V+
V–
C
L
V
OUT
VPTAT
OP177
V+
R1
R2
R3
100
TEMPERATURE
SENSOR &
VOLTAGE
REFERENCE
1
2
3
4
HYSTERESIS
GENERATOR
WINDOW
COMPARATOR
TMP01
VPTAT
VREF
7
8
5
6
10k
V
OUT
VPTAT
1/2
OP297
10k
V+
R1
R2
R3
50
TEMPERATURE
SENSOR &
VOLTAGE
REFERENCE
1
2
3
4
HYSTERESIS
GENERATOR
WINDOW
COMPARATOR
TMP01
VPTAT
VREF
7
8
5
6
10k
V+
V–
10k
1/2
OP297
AMP03
50
Figure 18. Send the Signal Differentially for Noise Immunity
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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TMP01ES-REEL 功能描述:IC SENSOR TEMP/CONTROLLER 8SOIC RoHS:否 類(lèi)別:傳感器，轉(zhuǎn)換器 >> 溫度 系列:- 其它有關(guān)文件:DS1820 Digital Thermometer 標(biāo)準(zhǔn)包裝:500 系列:- 感應(yīng)溫度:-55°C ~ 125°C 輸出類(lèi)型:開(kāi)路漏極 電源電壓:3 V ~ 5.5 V 精確度:±0.5°C 封裝/外殼:TO-226-3、TO-92-3 標(biāo)準(zhǔn)主體 供應(yīng)商設(shè)備封裝:TO-92 包裝:散裝
TMP01ESZ 功能描述:IC SENSOR TEMP/CONTROLLER 8SOIC RoHS:是 類(lèi)別:傳感器，轉(zhuǎn)換器 >> 溫度 系列:- 其它有關(guān)文件:DS1820 Digital Thermometer 標(biāo)準(zhǔn)包裝:500 系列:- 感應(yīng)溫度:-55°C ~ 125°C 輸出類(lèi)型:開(kāi)路漏極 電源電壓:3 V ~ 5.5 V 精確度:±0.5°C 封裝/外殼:TO-226-3、TO-92-3 標(biāo)準(zhǔn)主體 供應(yīng)商設(shè)備封裝:TO-92 包裝:散裝
TMP01ESZ 制造商:Analog Devices 功能描述:IC, TEMPERATURE CONTROLLER 1.5C 8-SOIC
TMP01ESZ1 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Power Programmable Temperature Controller
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