参数资料
| 型号： | AD8279BRZ-R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/24页 |
| 文件大小： | 0K |
| 描述： | IC AMP DIFF 1MHZ DUAL LP 14SOIC |
| 标准包装： | 1,000 |
| 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) |
Low Power, Wide Supply Range,
Low Cost Difference Amplifiers, G = , 2
AD8278/AD8279
Rev. C
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rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
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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 amplifier)
Low power dissipation: 0.5 mW at VS = 2.5 V
Bandwidth: 1 MHz (G = )
CMRR: 80 dB minimum, dc to 20 kHz (G = , B Grade)
Low offset voltage drift: ±1 μV/°C maximum (B Grade)
Low gain drift: 1 ppm/°C maximum (B Grade)
Enhanced slew rate: 1.4 V/μs
Wide power supply range
Single supply: 2 V to 36 V
Dual supplies: ±2 V to ±18 V
8-lead SOIC, 14-lead SOIC, and 8-lead MSOP packages
APPLICATIONS
Voltage measurement and monitoring
Current measurement and monitoring
Instrumentation amplifier building block
Portable, battery-powered equipment
Test and measurement
GENERAL DESCRIPTION
The AD8278 and AD8279 are general-purpose difference
amplifiers intended for precision signal conditioning in power
critical applications that require both high performance and low
power. The AD8278 and AD8279 provide exceptional common-
mode rejection ratio (80 dB) and high bandwidth while amplifying
input signals that are 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 amplifier extends to almost
triple the supply voltage (for G = ), making the amplifer 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 amp.
The AD8278 and AD8279 can be used as difference amplifiers with
G = or G = 2. They can also be connected in a high precision,
single-ended configuration for non inverting and inverting gains of
, 2, +3, +2, +1, +1, or +. The AD8278 and AD8279
provide an integrated precision solution that has a smaller size,
lower cost, and better performance than a discrete alternative.
The AD8278 and AD8279 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, which is ideal for battery-operated and portable
systems. For unity-gain difference amplifiers with similar
FUNCTIONAL BLOCK DIAGRAMS
2
5
3
1
6
7
4
40k
20k
40k
–VS
+VS
–IN
+IN
SENSE
OUT
REF
20k
AD8278
08
30
8-
0
01
Figure 1. AD8278
2
12
3
14
13
11
40k
20k
40k
+VS
–INA
+INA
SENSEA
OUTA
REFA
20k
6
10
5
8
9
40k
20k
40k
–INB
+INB
SENSEB
OUTB
REFB
20k
AD8279
4
–VS
08
30
8-
05
8
Figure 2. AD8279
Table 1. Difference Amplifiers by Category
Low
Distortion
High Voltage
Low Power
AD8202 (U)
AD8203 (U)
AD8205 (B)
AD8206 (B)
1U = unidirectional, B = bidirectional.
The AD8278 is available in the space-saving 8-lead MSOP and
SOIC packages, and the AD8279 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 |
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| AD8279BRZ-RL | 功能描述:IC AMP DIFF 1MHZ DUAL LP 14SOIC 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 |
| 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 |
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