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| 型號(hào)： | AD8230YRZ-REEL |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 6/16頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP CHOPPER R-R PREC 8SOIC |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 放大器類型： | 斷路器（零漂移） |
| 電路數(shù)： | 1 |
| 輸出類型： | 滿擺幅 |
| 轉(zhuǎn)換速率： | 2 V/µs |
| 電流 - 輸入偏壓： | 150pA |
| 電壓 - 輸入偏移： | 20µV |
| 電流 - 電源： | 3.2mA |
| 電流 - 輸出 / 通道： | 15mA |
| 電壓 - 電源，單路/雙路(±)： | 8 V ~ 16 V，±4 V ~ 8 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SO |
| 包裝： | 帶卷 (TR) |
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AD8230
Rev. B | Page 14 of 16
LAYOUT
The AD8230 has two reference pins: VREF1 and VREF2. VREF1
draws current to set the internal voltage references. In contrast,
VREF2 does not draw current. It sets the common mode of the
output signal. As such, VREF1 and VREF2 should be star-connected to
ground (or to a reference voltage). In addition, to maximize
CMR, the trace between VREF2 and the gain resistor, RG, should
be kept short.
APPLICATIONS
The AD8230 can be used in thermocouple applications, as
such a circuit for use in an industrial environment. Series
resistors and low leakage diodes serve to clamp overload
voltages (see the Input Protection section for more information).
2
6
1
7
5
8
4
3
AD8230
VOUT
–VS
+VS
0.1F
200
19.1k
TYPE J
THERMOCOUPLE
–VS
+VS
1F
BAV199
–VS
+VS
4.99k
100M
BAV199
–VS
+VS
0.1F
0
50
63-
0
39
Figure 39. Type J Thermocouple with Overvoltage Protection and RFI Filter
An antialiasing filter reduces unwanted high frequency signals.
The matched 100 MΩ resistors serve to provide input bias
current to the input transistors and serve as an indicator as to
when the thermocouple connection is broken. Well-matched
1% 4.99 kΩ resistors are used to form the antialiasing filter. It is
good practice to match the source impedances to ensure high
CMR. The circuit is configured for a gain of 193, which
provides an overall temperature sensitivity of 10 mV/°C.
2
6
1
7
5
8
4
3
AD8230
VOUT
–VS
+VS
0.1F
1k
102k
350
+VS
–VS
4k
1F
0.1F
05
06
3-
0
40
Figure 40. Bridge Measurement with Filtered Output
Measuring load cells in industrial environments can be a
challenge. Often, the load cell is located some distance away
from the instrumentation amplifier. The common-mode
potential can be several volts, exceeding the common-mode
input range of many 5 V auto-zero instrumentation amplifiers.
Fortunately, the wide common-mode input voltage range of the
AD8230 spans 16 V, relieving designers of having to worry
about the common-mode range.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD8230YRZ-REEL7 | 功能描述:IC AMP CHOPPER R-R PREC 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.028 V/µs 增益帶寬積:105kHz -3db帶寬:- 電流 - 輸入偏壓:3nA 電壓 - 輸入偏移:100µV 電流 - 電源:3.3µA 電流 - 輸出 / 通道:12mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 12 V，±1.35 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:剪切帶 (CT) 其它名稱:OP481GRUZ-REELCT |
| AD8231 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Noise, Low Gain Drift, G = 2000 Instrumentation Amplifier |
| AD8231_07 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Zero Drift, Digital Programmable Instrumentation Amplifier |
| AD8231_1 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Zero Drift, Digitally Programmable Instrumentation Amplifier |
| AD82311 | 制造商:AD 制造商全稱:Analog Devices 功能描述:10 MHz, 20 V/レs, G = 1, 10, 100, 1000 i CMOS㈢ Programmable Gain Instrumentation Amplifier |
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