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參數(shù)資料
| 型號： | AD8203YRZ-RL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 5/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP DIFF 60KHZ 8SOIC |
| 標準包裝： | 2,500 |
| 放大器類型： | 差分 |
| 電路數(shù)： | 1 |
| 轉(zhuǎn)換速率： | 0.330 V/µs |
| 增益帶寬積： | 60kHz |
| 電流 - 輸入偏壓： | 40nA |
| 電壓 - 輸入偏移： | 1000µV |
| 電流 - 電源： | 250µA |
| 電壓 - 電源，單路/雙路(±)： | 3.5 V ~ 12 V |
| 工作溫度： | -40°C ~ 125°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： | 帶卷 (TR) |
Data Sheet
AD8203
Rev. D | Page 13 of 20
An increase in the A2 bias current, in addition to the output
saturation voltage of A1, directly affects the output voltage of
the AD8203 system (Pin 3 and Pin 4 shorted). An example of
how to calculate the correct output voltage swing of the
AD8203, by taking all variables into account, follows:
Amplifier A1 output saturation potential can go as low as
20 mV at its output.
A2 typical input bias current of 40 nA multiplied by the
100 k preamplifier output resistor produces
40 nA × 100 k = 4 mV at the A2 input
Total voltage at the A2 input equals the output saturation
voltage of A1 combined with the voltage error generated
by the input bias current
20 mV + 4 mV = 24 mV
The total error at the input of A2, 24 mV, multiplied by the
buffer gain generates a resulting error of 48 mV at the
output of the buffer. This is the AD8203 system output low
saturation potential.
The high output voltage range of the AD8203 is specified
as 4.8 V. Therefore, assuming a typical A2 input bias
current, the output voltage range for the AD8203 is 48 mV
to 4.8 V.
For an example of the effect of changes in A2 input bias current
vs. applied input potentials, see Figure 41. The change in bias
current causes a change in error voltage at the input of the
buffer amplifier. This results in a change in overall error
potential at the output of the buffer amplifier.
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| AD8205WYRZ | 功能描述:IC AMP DIFF 42V SGL 8SOIC 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） 供應商設備封裝:8-SO 包裝:管件 |
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