參數資料
| 型號： | AD8279ARZ |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 1/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP DIFF LP 14SOIC |
| 產品培訓模塊： | Top Five Instrumentation Amplifier Problems |
| 標準包裝： | 56 |
| 放大器類型： | 差分 |
| 電路數： | 2 |
| 輸出類型： | 滿擺幅 |
| 轉換速率： | 1.4 V/µs |
| 增益帶寬積： | 1MHz |
| 電壓 - 輸入偏移： | 50µV |
| 電流 - 電源： | 300µA |
| 電流 - 輸出 / 通道： | 15mA |
| 電壓 - 電源，單路/雙路(±)： | 2 V ~ 36 V，±2 V ~ 18 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 14-SOIC（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 14-SOIC |
| 包裝： | 管件 |
| 產品目錄頁面： | 765 (CN2011-ZH PDF) |
Low Power, Wide Supply Range,
Low Cost Difference Amplifiers, G = , 2
AD8278/AD8279
Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
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
www.analog.com
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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相關代理商/技術參數 |
參數描述 |
|---|---|
| AD8279ARZ | 制造商:Analog Devices 功能描述:IC DIFF AMP 1MHZ 1.4V/ SOIC-14 |
| AD8279ARZ-R7 | 功能描述:IC AMP DIFF 1MHZ DUAL LP 14SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:50 系列:- 放大器類型:通用 電路數:2 輸出類型:滿擺幅 轉換速率:1.8 V/µs 增益帶寬積:6.5MHz -3db帶寬:4.5MHz 電流 - 輸入偏壓:5nA 電壓 - 輸入偏移:100µV 電流 - 電源:65µA 電流 - 輸出 / 通道:35mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應商設備封裝:10-MSOP 包裝:管件 |
| AD8279ARZ-RL | 功能描述:IC AMP DIFF 1MHZ DUAL LP 14SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:50 系列:- 放大器類型:通用 電路數:2 輸出類型:滿擺幅 轉換速率:1.8 V/µs 增益帶寬積:6.5MHz -3db帶寬:4.5MHz 電流 - 輸入偏壓:5nA 電壓 - 輸入偏移:100µV 電流 - 電源:65µA 電流 - 輸出 / 通道:35mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應商設備封裝:10-MSOP 包裝:管件 |
| AD8279BRZ | 功能描述:IC AMP DIFF LP 14SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:1 系列:- 放大器類型:通用 電路數:4 輸出類型:滿擺幅 轉換速率:0.028 V/µs 增益帶寬積:105kHz -3db帶寬:- 電流 - 輸入偏壓:3nA 電壓 - 輸入偏移:100µV 電流 - 電源:3.3µA 電流 - 輸出 / 通道:12mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 12 V，±1.35 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:14-TSSOP 包裝:剪切帶 (CT) 其它名稱:OP481GRUZ-REELCT |
| AD8279BRZ-R7 | 功能描述:IC AMP DIFF 1MHZ DUAL LP 14SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:100 系列:- 放大器類型:通用 電路數:1 輸出類型:- 轉換速率:0.2 V/µs 增益帶寬積:- -3db帶寬:- 電流 - 輸入偏壓:100pA 電壓 - 輸入偏移:30µV 電流 - 電源:380µA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):±2 V ~ 18 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:8-SO 包裝:管件 |
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