参数资料
| 型号： | AD8278ARMZ-R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 9/24页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP DIFFERENTIAL 8MSOP |
| 产品培训模块： | Top Five Instrumentation Amplifier Problems |
| 标准包装： | 1 |
| 放大器类型： | 差分 |
| 电路数： | 1 |
| 输出类型： | 满摆幅 |
| 转换速率： | 1.4 V/µs |
| 增益带宽积： | 1MHz |
| 电压 - 输入偏移： | 50µV |
| 电流 - 电源： | 200µA |
| 电流 - 输出 / 通道： | 15mA |
| 电压 - 电源，单路/双路(±)： | 2 V ~ 36 V，±2 V ~ 18 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-MSOP |
| 包装： | 标准包装 |
| 产品目录页面： | 771 (CN2011-ZH PDF) |
| 其它名称： | AD8278ARMZ-R7DKR |
AD8278/AD8279
Rev. C | Page 17 of 24
POWER SUPPLIES
The AD8278 and AD8279 operate extremely well over a very
wide range of supply voltages. They can operate on a single
supply as low as 2 V and as high as 36 V, under appropriate
setup conditions.
For best performance, the user should ensure that the internal
op amp is biased correctly. The internal input terminals of the
op amp must have sufficient voltage headroom to operate
properly. Proper operation of the part requires at least 1.5 V
between the positive supply rail and the op amp input terminals.
This relationship is expressed in the following equation:
V
5
.
1
+
<
+
S
REF
V
R2
R1
For example, when operating on a +VS= 2 V single supply and
terminals are biased at 0 V, allowing more than the required 1.5 V
headroom. However, if VREF = 1 V under the same conditions, the
input terminals of the op amp are biased at 0.66 V (G = ). Now
the op amp does not have the required 1.5 V headroom and
cannot function. Therefore, the user must increase the supply
voltage or decrease VREF to restore proper operation.
The AD8278 and AD8279 are typically specified at single and
dual supplies, but they can be used with unbalanced supplies as
well; for example, VS = 5 V, +VS = +20 V. The difference between
the two supplies must be kept below 36 V. The positive supply
rail must be at least 2 V above the negative supply.
08
30
8-
0
46
R4
R3
R1
R2
R1
R1 + R2
(VREF)
R1
R1 + R2
(VREF)
VREF
Figure 50. Ensure Sufficient Voltage Headroom on the Internal Op Amp
Inputs
Use a stable dc voltage to power the AD8278 and AD8279. Noise
on the supply pins can adversely affect performance. Place a
bypass capacitor of 0.1 μF between each supply pin and ground,
as close as possible to each supply pin. Use a tantalum capacitor
of 10 μF between each supply and ground. It can be farther
away from the supply pins and, typically, it can be shared by
other precision integrated circuits.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD8278ARMZ-RL | 功能描述:IC OPAMP DIFFERENTIAL 8MSOP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:2,500 系列:- 放大器类型:通用 电路数:1 输出类型:满摆幅 转换速率:0.11 V/µs 增益带宽积:350kHz -3db带宽:- 电流 - 输入偏压:4nA 电压 - 输入偏移:20µV 电流 - 电源:260µA 电流 - 输出 / 通道:20mA 电压 - 电源，单路/双路(±):2.7 V ~ 36 V，±1.35 V ~ 18 V 工作温度:-40°C ~ 85°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) |
| AD8278ARZ | 功能描述:IC OPAMP DIFFERENTIAL 8SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 产品培训模块:Differential Circuit Design Techniques for Communication Applications 标准包装:1 系列:- 放大器类型:RF/IF 差分 电路数:1 输出类型:差分 转换速率:9800 V/µs 增益带宽积:- -3db带宽:2.9GHz 电流 - 输入偏压:3µA 电压 - 输入偏移:- 电流 - 电源:40mA 电流 - 输出 / 通道:- 电压 - 电源，单路/双路(±):3 V ~ 3.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-VQFN 裸露焊盘，CSP 供应商设备封装:16-LFCSP-VQ 包装:剪切带 (CT) 产品目录页面:551 (CN2011-ZH PDF) 其它名称:ADL5561ACPZ-R7CT |
| AD8278ARZ | 制造商:Analog Devices 功能描述:IC DIFFERENTIAL AMP 1MHZ 1.4V/ SOIC8 |
| AD8278ARZ-R7 | 功能描述:IC OPAMP DIFFERENTIAL 8SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:2,500 系列:- 放大器类型:通用 电路数:1 输出类型:满摆幅 转换速率:0.11 V/µs 增益带宽积:350kHz -3db带宽:- 电流 - 输入偏压:4nA 电压 - 输入偏移:20µV 电流 - 电源:260µA 电流 - 输出 / 通道:20mA 电压 - 电源，单路/双路(±):2.7 V ~ 36 V，±1.35 V ~ 18 V 工作温度:-40°C ~ 85°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) |
| AD8278ARZ-RL | 功能描述:IC OPAMP DIFFERENTIAL 8SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:2,500 系列:- 放大器类型:通用 电路数:1 输出类型:满摆幅 转换速率:0.11 V/µs 增益带宽积:350kHz -3db带宽:- 电流 - 输入偏压:4nA 电压 - 输入偏移:20µV 电流 - 电源:260µA 电流 - 输出 / 通道:20mA 电压 - 电源，单路/双路(±):2.7 V ~ 36 V，±1.35 V ~ 18 V 工作温度:-40°C ~ 85°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) |
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