參數(shù)資料
型號： LT1991ACMS
廠商： Linear Integrated Systems
英文描述： Precision, 100UA Gain Selectable Amplifier
中文描述： 精密，100uA的可選增益放大器
文件頁數(shù)： 16/24頁
文件大小： 311K
代理商： LT1991ACMS
LT1991
16
1991fb
Figure 10. Difference Amplifier Using the LT1991. Gain Is Set
Simply by Connecting the Correct Resistors or Combinations
of Resistors. Gain of 3 Is Shown, with Dashed Lines Modifying
It to Gain of 1.5. Noise Gain Is Optimal
Difference Amplifiers
The resistors in the LT1991 allow it to easily make differ-
ence amplifiers also. Figure 10 shows the basic 4-resistor
difference amplifier and the LT1991. A difference gain of
3 is shown, but notice the effect of the additional dashed
connections. By connecting the 450k resistors in parallel,
the gain is reduced by a factor of 2. Of course, with so
many resistors, there are many possible gains. Table 4
shows the difference gains and how they are achieved.
Note that, as for inverting amplifiers, the noise gain is 1
more than the signal gain.
Table 4. Connections Giving Difference Gains for the LT1991
Gain
V
IN+
0.077
P1
0.1
P1
0.25
P1
0.273
P3
0.3
P3
0.4
P1, P3
M1, M3
1
P1
1.5
P3
1.8
P9
2.25
P9
2.5
P1, P9
M1, M9
3
P3
4
P1, P3
M1, M3
4.5
P9
6
P3, P9
M3, M9
9
P9
10
P1, P9
M1, M9
12
P3, P9
M3, M9
13
P1, P3, P9
M1, M3, M9
V
IN–
M1
M1
M1
M3
M3
Output
M3, M9
M9
M3
M1, M9
M9
M9
GND (REF)
P3, P9
P9
P3
P1, P9
P9
P9
M1
M3
M9
M9
M1
P1
M1, M3
M3
M3
P1, P3
P3
P3
M3
M9
M1
M1
P1
P1
M9
APPLICATIOU
W
U
U
–
+
R
F
R
G
R
G
V
IN
+
V
IN
+
V
IN
–
V
IN
–
V
OUT
V
OUT
V
= GAIN (V
IN
GAIN = R
F
/R
G
+
– V
IN
–
)
–
+
1991 F10
50k
150k
450k
50k
150k
450k
450k
450k
8
6
5
9
10
1
2
3
LT1991
CLASSICAL DIFFERENCE AMPLIFIER USING THE LT1991
CLASSICAL DIFFERENCE AMPLIFIER IMPLEMENTED
WITH LT1991. R
F
= 450k, R
G
= 150k, GAIN = 3.
ADDING THE DASHED CONNECTIONS CONNECTS THE
TWO 450k RESISTORS IN PARALLEL, SO R
F
IS REDUCED
TO 225k. GAIN BECOMES 225k/150k = 1.5.
R
F
PARALLEL
TO CHANGE
R
F
, R
G
M9
M3
M1
P1
P3
P9
4pF
4pF
相關(guān)PDF資料
PDF描述
LT1991AIDD Precision, 100UA Gain Selectable Amplifier
LT1991AIMS Precision, 100UA Gain Selectable Amplifier
LT1991CMS Precision, 100UA Gain Selectable Amplifier
LT1991IMS Precision, 100UA Gain Selectable Amplifier
LT1991 nullPrecision, 100UA Gain Selectable Amplifier
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LT1991ACMS#PBF 功能描述:IC AMP PREC GAIN SELECT 10-MSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 產(chǎn)品培訓(xùn)模塊:Differential Circuit Design Techniques for Communication Applications 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類型:RF/IF 差分 電路數(shù):1 輸出類型:差分 轉(zhuǎn)換速率:9800 V/µs 增益帶寬積:- -3db帶寬:2.9GHz 電流 - 輸入偏壓:3µA 電壓 - 輸入偏移:- 電流 - 電源:40mA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-VQFN 裸露焊盤，CSP 供應(yīng)商設(shè)備封裝:16-LFCSP-VQ 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:551 (CN2011-ZH PDF) 其它名稱:ADL5561ACPZ-R7CT
LT1991ACMS#TR 功能描述:IC AMP PREC GAIN SELECT 10MSOP RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類型:通用 電路數(shù):2 輸出類型:滿擺幅 轉(zhuǎn)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(yīng)商設(shè)備封裝:10-MSOP 包裝:管件
LT1991ACMS#TRPBF 功能描述:IC AMP PREC GAIN SELECT 10MSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類型:通用 電路數(shù):2 輸出類型:滿擺幅 轉(zhuǎn)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(yīng)商設(shè)備封裝:10-MSOP 包裝:管件
LT1991ACMS-PBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:Precision, 100μA Gain Selectable Amplifi er
LT1991ACMS-TRPBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:Precision, 100μA Gain Selectable Amplifi er
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報(bào)價(jià)

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*