参数资料
| 型号： | AD8279BRZ-RL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 9/24页 |
| 文件大小： | 0K |
| 描述： | IC AMP DIFF 1MHZ DUAL LP 14SOIC |
| 标准包装： | 2,500 |
| 放大器类型： | 差分 |
| 电路数： | 2 |
| 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： | 300µA |
| 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： | 14-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 14-SOIC |
| 包装： | 带卷 (TR) |
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.
相关PDF资料 |
PDF描述 |
|---|---|
| C2Q 2 | FUSE 2A 32V 0603 FAST C2Q |
| AD8277BRZ-RL | IC AMP GP UNITY GAIN DIFF 14SOIC |
| P6KE9.1AHE3/54 | TVS 600W 9.1V 5% UNIDIR AXIAL |
| RC0805FR-072K55L | RES 2.55K OHM 1/8W 1% 0805 SMD |
| P6KE91AHE3/54 | TVS 600W 91V 5% UNIDIR AXIAL |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD8279-EVALZ | 功能描述:AD8279 2 - Dual Channels per IC Difference Amplifier Evaluation Board 制造商:analog devices inc. 系列:- 零件状态:有效 每 IC 通道数:2 - 双 放大器类型:差异 输出类型:单端，满摆幅 压摆率:1.4 V/μs -3db 带宽:1MHz 电流 - 输出/通道:15mA 工作温度:-40°C ~ 85°C 电流 - 电源（主 IC）:300μA 电压 - 电源，单/双（±）:2 V ~ 36 V，±2 V ~ 18 V 板类型:完全填充 所含物品:板 使用的 IC/零件:AD8279 标准包装:1 |
| AD827AQ | 功能描述:IC OPAMP GP 50MHZ DUAL LP 8CDIP RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:50 系列:- 放大器类型:J-FET 电路数:2 输出类型:- 转换速率:3.5 V/µs 增益带宽积:1MHz -3db带宽:- 电流 - 输入偏压:30pA 电压 - 输入偏移:2000µV 电流 - 电源:200µA 电流 - 输出 / 通道:- 电压 - 电源，单路/双路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作温度:0°C ~ 70°C 安装类型:通孔 封装/外壳:8-DIP（0.300"，7.62mm） 供应商设备封装:8-PDIP 包装:管件 |
| AD827J | 制造商:AD 制造商全称:Analog Devices 功能描述:High Speed, Low Power Dual Op Amp |
| AD827JCHIPS | 制造商:AD 制造商全称:Analog Devices 功能描述:High Speed, Low Power Dual Op Amp |
| AD827JN | 功能描述:IC OPAMP GP 50MHZ DUAL LP 8DIP RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:2,500 系列:Excalibur™ 放大器类型:J-FET 电路数:1 输出类型:- 转换速率:45 V/µs 增益带宽积:10MHz -3db带宽:- 电流 - 输入偏压:20pA 电压 - 输入偏移:490µV 电流 - 电源:1.7mA 电流 - 输出 / 通道:48mA 电压 - 电源，单路/双路(±):4.5 V ~ 38 V，±2.25 V ~ 19 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-SOIC 包装:带卷 (TR) |
发布紧急采购，3分钟左右您将得到回复。