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| 型号： | AD8277BRZ-RL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC AMP GP UNITY GAIN DIFF 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： | 1.1 V/µs |
| 增益带宽积： | 550kHz |
| 电压 - 输入偏移： | 100µV |
| 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： | 14-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 14-SOIC |
| 包装： | 带卷 (TR) |
Low Power, Wide Supply Range, Low Cost
Unity-Gain Difference Amplifiers
Data Sheet
Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
2009–2011 Analog Devices, Inc. All rights reserved.
FEATURES
Wide input range beyond supplies
Rugged input overvoltage protection
Low supply current: 200 μA maximum per channel
Low power dissipation: 0.5 mW at VS = 2.5 V
Bandwidth: 550 kHz
CMRR: 86 dB minimum, dc to 10 kHz
Low offset voltage drift: ±2 μV/°C maximum (B Grade)
Low gain drift: 1 ppm/°C maximum (B Grade)
Enhanced slew rate: 1.1 V/μs
Wide power supply range:
Single supply: 2 V to 36 V
Dual supplies: ±2 V to ±18 V
APPLICATIONS
Voltage measurement and monitoring
Current measurement and monitoring
Differential output instrumentation amplifier
Portable, battery-powered equipment
Test and measurement
GENERAL DESCRIPTION
The AD8276/AD8277 are general-purpose, unity-gain difference
amplifiers intended for precision signal conditioning in power
critical applications that require both high performance and low
power. They provide exceptional common-mode rejection ratio
(86 dB) and high bandwidth while amplifying signals well beyond
the supply rails. The on-chip resistors are laser-trimmed for
excellent gain accuracy and high CMRR. They also have extremely
low gain drift vs. temperature.
The common-mode range of the amplifiers extends to almost
double the supply voltage, making these amplifiers ideal for single-
supply applications that require a high common-mode voltage
range. The internal resistors and ESD circuitry at the inputs also
provide overvoltage protection to the op amps.
The AD8276/AD8277 are unity-gain stable. While they are
optimized for use as difference amplifiers, they can also be
connected in high precision, single-ended configurations with
G = 1, +1, +2. The AD8276/AD8277 provide an integrated
precision solution that has smaller size, lower cost, and better
performance than a discrete alternative.
The AD8276/AD8277 operate on single supplies (2.0 V to 36 V)
or dual supplies (±2 V to ±18 V). The maximum quiescent
supply current is 200 μA per channel, which is ideal for battery-
operated and portable systems.
FUNCTIONAL BLOCK DIAGRAM
07
69
2-
0
01
2
5
3
1
6
7
4
40k
–VS
+VS
–IN
+IN
SENSE
OUT
REF
40k
AD8276
Figure 1. AD8276
07
69
2-
05
2
2
12
3
14
13
11
40k
+VS
–INA
+INA
SENSEA
OUTA
REFA
40k
AD8277
6
10
5
8
9
4
40k
–VS
–INB
+INB
SENSEB
OUTB
REFB
40k
Figure 2. AD8277
Table 1. Difference Amplifiers by Category
Low
Distortion
High
Voltage
Current
Sensing1
Low Power
1 U = unidirectional, B = bidirectional.
The AD8276 is available in the space-saving 8-lead MSOP and
SOIC packages, and the AD8277 is offered in a 14-lead SOIC
package. Both are specified for performance over the industrial
temperature range of 40°C to +85°C and are fully RoHS
compliant.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD8277-EVALZ | 功能描述:AD8277 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:1.1 V/μs -3db 带宽:550kHz 电流 - 输出/通道:15mA 工作温度:-40°C ~ 85°C 电流 - 电源（主 IC）:200μA 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:AD8277 标准包装:1 |
| AD8278 | 制造商:AD 制造商全称:Analog Devices 功能描述:Low Power, Wide Supply Range, Low Cost Difference Amplifier, G = ?, 2 |
| AD8278ARMZ | 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:1,000 系列:- 放大器类型:电压反馈 电路数:4 输出类型:满摆幅 转换速率:33 V/µs 增益带宽积:20MHz -3db带宽:30MHz 电流 - 输入偏压:2nA 电压 - 输入偏移:3000µV 电流 - 电源:2.5mA 电流 - 输出 / 通道:30mA 电压 - 电源，单路/双路(±):4.5 V ~ 16.5 V，±2.25 V ~ 8.25 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) |
| AD8278ARMZ | 制造商:Analog Devices 功能描述:IC DIFFERENTIAL AMP 1MHZ 1.4V/ MSOP8 制造商:Analog Devices 功能描述:IC, DIFFERENTIAL AMP, 1MHZ 1.4V/ uS MSOP8 |
| AD8278ARMZ-R7 | 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:100 系列:- 放大器类型:通用 电路数:1 输出类型:- 转换速率:0.2 V/µs 增益带宽积:- -3db带宽:- 电流 - 输入偏压:100pA 电压 - 输入偏移:30µV 电流 - 电源:380µA 电流 - 输出 / 通道:- 电压 - 电源，单路/双路(±):±2 V ~ 18 V 工作温度:0°C ~ 70°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 |
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