参数资料
| 型号： | AD8207WBRZ-R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 4/16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 12 of 16
OUTPUT OFFSET ADJUSTMENT
The output of the AD8207 can be adjusted for unidirectional or
bidirectional operation.
UNIDIRECTIONAL OPERATION
Unidirectional operation allows the AD8207 to measure
currents through a resistive shunt in one direction. The basic
modes for unidirectional operation are ground referenced
output mode and V+ referenced output mode.
For unidirectional operation, the output can be set at the
negative rail (near ground) or at the positive rail (near V+)
when the differential input is 0 V. The output moves to the
opposite rail when a correct polarity differential input voltage
is applied. In this case, full scale is approximately 250 mV for a
5 V supply or 165 mV for a 3.3 V supply. The required polarity
of the differential input depends on the output voltage setting.
If the output is set at the positive rail, the input polarity must
be negative to move the output down. If the output is set at
ground, the polarity must be positive to move the output up.
Ground Referenced Output Mode
When using the AD8207 in the ground referenced output mode,
both reference inputs are tied to ground, which causes the output to
sit at the negative rail when there are 0 differential volts at the input
(see Figure 28).
REF
ZERO
DRIFT
+IN
–IN
OUT
V+
GND
VREF1
VREF2
RANGE
AD8207
5V
09
16
0
-01
2
Figure 28. Ground Referenced Output Mode, V+ = 5 V
Table 4. Ground Referenced Output
VIN (Referred to IN)
VO
V+ = 5 V
0 V
0.02 V
250 mV
4.95 V
V+ = 3.3 V
0 V
0.02 V
165 mV
3.25 V
V+ Referenced Output Mode
The V+ referenced output mode is set when both reference pins
are tied to the positive supply. This mode is typically used when
the diagnostic scheme requires detection of the amplifier and
the wiring before power is applied to the load (see Figure 29).
RANGE
REF
ZERO
DRIFT
+IN
–IN
OUT
V+
GND
VREF1
VREF2
AD8207
5V
09
16
0-
0
13
Figure 29. V+ Referenced Output Mode, V+ = 5 V
Table 5. V+ Referenced Output
VIN (Referred to IN)
VO
V+ = 5 V
0 V
4.95 V
250 mV
0.02 V
V+ = 3.3 V
0 V
3.25 V
165 mV
0.02 V
BIDIRECTIONAL OPERATION
Bidirectional operation allows the AD8207 to measure currents
through a resistive shunt in two directions. In this case, the
output is set anywhere within the output range. Typically, it
is set at half scale for equal range in both directions. In some
cases, however, it is set at a voltage other than half scale when
the bidirectional current is asymmetrical.
Table 6. VO = (V+/2) with VIN = 0 V
VIN (Referred to IN)
VO
V+ = 5 V
+100 mV
4.5 V
100 mV
0.5 V
V+ = 3.3 V
+67.5 mV
3 V
67.5 mV
0.3 V
Adjusting the output is accomplished by applying voltages
to the reference inputs. VREF1 and VREF2 are tied to internal
resistors that connect to an internal offset node. There is no
operational difference between the pins.
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相关代理商/技术参数 |
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| 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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