参数资料
| 型号： | AD8230YRZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 6/16页 |
| 文件大小： | 0K |
| 描述： | IC AMP CHOPPER R-R PREC 8SOIC |
| 标准包装： | 98 |
| 放大器类型： | 断路器（零漂移） |
| 电路数： | 1 |
| 输出类型： | 满摆幅 |
| 转换速率： | 2 V/µs |
| 电流 - 输入偏压： | 150pA |
| 电压 - 输入偏移： | 20µV |
| 电流 - 电源： | 3.2mA |
| 电流 - 输出 / 通道： | 15mA |
| 电压 - 电源，单路/双路(±)： | 8 V ~ 16 V，±4 V ~ 8 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 管件 |
| 产品目录页面： | 771 (CN2011-ZH PDF) |
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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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD8230YRZ-REEL | 功能描述:IC AMP CHOPPER R-R PREC 8SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:1 系列:- 放大器类型:通用 电路数:4 输出类型:满摆幅 转换速率:0.028 V/µs 增益带宽积:105kHz -3db带宽:- 电流 - 输入偏压:3nA 电压 - 输入偏移:100µV 电流 - 电源:3.3µA 电流 - 输出 / 通道:12mA 电压 - 电源，单路/双路(±):2.7 V ~ 12 V，±1.35 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:剪切带 (CT) 其它名称:OP481GRUZ-REELCT |
| AD8230YRZ-REEL7 | 功能描述:IC AMP CHOPPER R-R PREC 8SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:1 系列:- 放大器类型:通用 电路数:4 输出类型:满摆幅 转换速率:0.028 V/µs 增益带宽积:105kHz -3db带宽:- 电流 - 输入偏压:3nA 电压 - 输入偏移:100µV 电流 - 电源:3.3µA 电流 - 输出 / 通道:12mA 电压 - 电源，单路/双路(±):2.7 V ~ 12 V，±1.35 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:剪切带 (CT) 其它名称:OP481GRUZ-REELCT |
| AD8231 | 制造商:AD 制造商全称:Analog Devices 功能描述:Low Noise, Low Gain Drift, G = 2000 Instrumentation Amplifier |
| AD8231_07 | 制造商:AD 制造商全称:Analog Devices 功能描述:Zero Drift, Digital Programmable Instrumentation Amplifier |
| AD8231_1 | 制造商:AD 制造商全称:Analog Devices 功能描述:Zero Drift, Digitally Programmable Instrumentation Amplifier |
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