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參數(shù)資料
| 型號(hào)： | LMP8270MA/NOPB |
| 廠商： | National Semiconductor |
| 文件頁(yè)數(shù)： | 5/17頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP PREC DIFF 8-SOIC |
| 標(biāo)準(zhǔn)包裝： | 95 |
| 系列： | LMP® |
| 放大器類型： | 差分 |
| 電路數(shù)： | 1 |
| 輸出類型： | 滿擺幅 |
| 轉(zhuǎn)換速率： | 0.7 V/µs |
| 增益帶寬積： | 80kHz |
| 電流 - 輸入偏壓： | 20pA |
| 電壓 - 輸入偏移： | 250µV |
| 電流 - 電源： | 1mA |
| 電壓 - 電源，單路/雙路(±)： | 4.75 V ~ 5.5 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(yīng)商設(shè)備封裝： | 8-SOIC |
| 包裝： | 管件 |
| 其它名稱： | *LMP8270MA *LMP8270MA/NOPB LMP8270MA |
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Z
o =
1
R1R2C1C2
fc =
1
2S
Q =
R1C1+R2C1+(1-K)R1C2
R1R2C1C2
VS = 4.75V to 5.5V
OUT
LMP8270
+
-
A1
GND
+IN
-IN
A2
GAIN = 2
A1
A2
R1 =
100 k:
GAIN = 10
PROPRIETARY
LEVEL - SHIFT
CIRCUITRY
C2
C1
R2
1
AVOL
+
R3
R3 + R4
=
1
K
M = s
2C
1C2R1R2 + s(R1C1+R1C2+C1R2) + 1
N = sC2R1
=
VO
VIN
K
M - KN
OBSOLETE
SNOSAK1K – DECEMBER 2004 – REVISED APRIL 2013
With the general transfer function:
where
and
(3)
K represents the sum of DC closed loop gain and the non-ideality behavior of the operational amplifier. Assuming
ideal behavior, the equation for K simply reduces to the DC gain, which is +2 for the LMP8270.
The LMP8270 can be used to realize this configuration as shown in Figure 29:
Figure 29. Low-Pass Filter With LMP8270
Using the filter parameters can be calculated as follows:
(4)
for the LMP8270, R1 = 100 k. Setting R1 = R2 and C1 = C2 results in a low-pass filter with Q = 1. Since the
values of resistors are predetermined, the corner frequency of this implementation of the filter depends on the
capacitor values.
Copyright 2004–2013, Texas Instruments Incorporated
13
Product Folder Links: LMP8270
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMP8270MAX/E7001108 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
| LMP8270MAX/NOPB | 功能描述:IC AMP PREC VOLT DIFF 8-SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:LMP® 其它有關(guān)文件:Automotive Product Guide 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類型:通用 電路數(shù):1 輸出類型:滿擺幅 轉(zhuǎn)換速率:3 V/µs 增益帶寬積:10MHz -3db帶寬:- 電流 - 輸入偏壓:1pA 電壓 - 輸入偏移:70µV 電流 - 電源:2.5mA 電流 - 輸出 / 通道:48mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 5.5 V，±1.35 V ~ 2.75 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應(yīng)商設(shè)備封裝:SOT-6 包裝:Digi-Reel® 其它名稱:MAX4475AUT#TG16DKR |
| LMP8271 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:High Common Mode, Gain of 20, Bidirectional Precision Voltage Difference Amplifiers |
| LMP8271A E0A WAF | 制造商:Texas Instruments 功能描述: |
| LMP8271A E0B WAF | 制造商:Texas Instruments 功能描述: |
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