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參數(shù)資料
| 型號： | AD8279BRZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 9/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP DIFF LP 14SOIC |
| 產(chǎn)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(shù)： | 2 |
| 輸出類型： | 滿擺幅 |
| 轉(zhuǎn)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(yīng)商設(shè)備封裝： | 14-SOIC |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 765 (CN2011-ZH PDF) |
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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| 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(shù):1 輸出類型:- 轉(zhuǎn)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(yīng)商設(shè)備封裝:8-SO 包裝:管件 |
| AD8279BRZ-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:100 系列:- 放大器類型:通用 電路數(shù):1 輸出類型:- 轉(zhuǎn)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(yīng)商設(shè)備封裝:8-SO 包裝: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:- 零件狀態(tài):有效 每 IC 通道數(shù):2 - 雙 放大器類型:差異 輸出類型:單端，滿擺幅 壓擺率:1.4 V/μs -3db 帶寬:1MHz 電流 - 輸出/通道:15mA 工作溫度:-40°C ~ 85°C 電流 - 電源（主 IC）:300μA 電壓 - 電源，單/雙（±）:2 V ~ 36 V，±2 V ~ 18 V 板類型:完全填充 所含物品:板 使用的 IC/零件:AD8279 標準包裝:1 |
| AD827AQ | 功能描述:IC OPAMP GP 50MHZ DUAL LP 8CDIP RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:50 系列:- 放大器類型:J-FET 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:3.5 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:30pA 電壓 - 輸入偏移:2000µV 電流 - 電源:200µA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:8-PDIP 包裝:管件 |
| AD827J | 制造商:AD 制造商全稱:Analog Devices 功能描述:High Speed, Low Power Dual Op Amp |
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