参数资料
| 型号： | AD8207WBRZ-R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 5/16页 |
| 文件大小： | 0K |
| 描述： | IC AMP 65V DIFF BIDIRECT 8SOIC |
| 标准包装： | 1,000 |
| 放大器类型： | 零漂移 |
| 电路数： | 1 |
| 转换速率： | 1 V/µs |
| -3db带宽： | 150kHz |
| 电压 - 输入偏移： | 100µV |
| 电流 - 电源： | 2.5mA |
| 电压 - 电源，单路/双路(±)： | 3.3 V ~ 5.5 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： | 带卷 (TR) |
AD8207
Rev. 0 | Page 13 of 16
EXTERNAL REFERENCED OUTPUT
Tying both reference pins together and to an external reference
produces an output equal to the reference voltage when there is
no differential input (see Figure 30). The output moves down
from the reference voltage when the input is negative, relative
to the IN pin, and up when the input is positive, relative to the
IN pin. The reference pins are connected to the positive input
of the main amplifier via precision-trimmed 100 kΩ resistors.
Therefore, it is recommended that a low impedance voltage is
always be used to set the reference voltage. If external resistors
are connected directly to the VREF1 and VREF2 pins, there will
be a mismatch with the internal trimmed resistors, leading to
offset gain accuracy reduction.
RANGE
V+
5V
REF
+IN
–IN
OUT
VOLTAGE
REFERENCE
GND
AD8207
ZERO
DRIFT
VREF1
VREF2
2.5V
09
16
0-
0
14
Figure 30. External Referenced Output, V+ = 5 V
SPLITTING THE SUPPLY
By tying one reference pin to V+ and the other to the ground
pin, the output is set at half of the supply when there is no dif-
ferential input (see Figure 31). The benefit is that no external
reference is required to offset the output for bidirectional current
measurement. This creates a midscale offset that is ratiometric to
the supply, which means that if the supply increases or decreases,
the output remains at half the supply. For example, if the supply is
5.0 V, the output is at half scale, or 2.5 V. If the supply increases by
10% (to 5.5 V), the output goes to 2.75 V.
RANGE
V+
5V
REF
+IN
–IN
OUT
GND
AD8207
ZERO
DRIFT
VREF1
VREF2
09
16
0-
0
15
Figure 31. Splitting the Supply, V+ = 5 V
SPLITTING AN EXTERNAL REFERENCE
In Figure 32, an external reference is divided by 2 with an
accuracy of approximately 0.5% by connecting one VREF pin to
V+
5V
REF
+IN
–IN
OUT
VOLTAGE
REFERENCE
GND
AD8207
ZERO
DRIFT
VREF1
VREF2
5V
09
16
0-
0
16
RANGE
Figure 32. Splitting an External Reference, V+ = 5 V
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD8207WBRZ-RL | 功能描述:IC AMP 65V DIFF BIDIRECT 8SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 其它有关文件:Automotive Product Guide 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 放大器类型:通用 电路数:1 输出类型:满摆幅 转换速率:3 V/µs 增益带宽积:10MHz -3db带宽:- 电流 - 输入偏压:1pA 电压 - 输入偏移:70µV 电流 - 电源:2.5mA 电流 - 输出 / 通道:48mA 电压 - 电源，单路/双路(±):2.7 V ~ 5.5 V，±1.35 V ~ 2.75 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:Digi-Reel® 其它名称:MAX4475AUT#TG16DKR |
| AD8208 | 制造商:AD 制造商全称:Analog Devices 功能描述:High Voltage, Precision Difference Amplifier |
| AD8208WBRMZ | 功能描述:IC AMP DIFF PREC 8MSOP 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 |
| AD8208WBRMZ-R7 | 功能描述:IC AMP DIFF PREC 8MSOP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:50 系列:- 放大器类型:通用 电路数:2 输出类型:满摆幅 转换速率:1.8 V/µs 增益带宽积:6.5MHz -3db带宽:4.5MHz 电流 - 输入偏压:5nA 电压 - 输入偏移:100µV 电流 - 电源:65µA 电流 - 输出 / 通道:35mA 电压 - 电源，单路/双路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件 |
| AD8208WBRMZ-RL | 功能描述:IC AMP DIFF PREC 8MSOP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:50 系列:- 放大器类型:通用 电路数:2 输出类型:满摆幅 转换速率:1.8 V/µs 增益带宽积:6.5MHz -3db带宽:4.5MHz 电流 - 输入偏压:5nA 电压 - 输入偏移:100µV 电流 - 电源:65µA 电流 - 输出 / 通道:35mA 电压 - 电源，单路/双路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件 |
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