參數(shù)資料
型號： LTC6241IDD#TRPBF
廠商： Linear Technology
文件頁數(shù)： 18/32頁
文件大?。?/td> 0K
描述： IC OP AMP DUAL R-R 8-DFN
標(biāo)準(zhǔn)包裝： 2,500
放大器類型： 通用
電路數(shù)： 2
輸出類型： 滿擺幅
轉(zhuǎn)換速率： 10 V/µs
增益帶寬積： 18MHz
電流 - 輸入偏壓： 0.2pA
電壓 - 輸入偏移： 100µV
電流 - 電源： 1.8mA
電流 - 輸出 / 通道： 30mA
電壓 - 電源，單路/雙路(±)： 2.8 V ~ 6 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 8-WFDFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 8-DFN-EP（3x3）
包裝： 帶卷 (TR)
LTC6240/LTC6241/LTC6242
25
624012fe
1M Transimpedance Amplier with 43nV/√Hz
Output Noise
In a normal 1M transimpedance amplier, like that shown
on the back page of this data sheet, the output noise density
must be at least 130nV/√Hz at room temperature. This is
true even should the op amp be perfectly noiseless, because
the 1M resistor provides 130nV/√Hz of voltage noise at
room temperature independently of the op amp.
The circuit of Figure 13 provides an overall transimpedance
gain of 1MΩ, but it has an output noise density of only
43nV/√Hz, about 1/3 of the normal transimpedance ampli-
er. It does this by taking a higher initial transimpedance
gain of 10M and then attenuating by a factor of 10. The
transistor section provides voltage gain and works on a
54V supply voltage to guarantee adequate output swing.
By achieving an output swing of 50V before attenuation,
the circuit provides an output swing to 5V after attenu-
ation. The 10M resistor sets the gain of the TIA stage
and has a noise density of 400nV/√Hz. After attenuation,
the effective TIA gain drops to 1M while the noise oor
drops to 40nV/√Hz, which clearly dominates the observed
43nV/√Hz. Note the additional benet that the offset voltage
of the op amp is divided by 10. Worst-case output offset
for this circuit is 150μV over temperature.
Reference Buffer
Figure 14 shows the LTC6240 being utilized as a buffer
in conjunction with the LT1019 reference. The passive
R-C lter attenuates the reference noise and the LTC6240
provides a low noise buffer, resulting in an output noise
of 8nV/√Hz.
Figure 13. 1M Transimpedance Amplier with 43nV/√Hz Output Noise
Figure 14. Low Noise Reference Buffer
APPLICATIONS INFORMATION
5V
54V
–5V
–1.5V
3pF
PHOTODIODE
6241 F13
–5V
10k
–
+
LTC6240HV
100pF
10M
1%
0.3pF
1k
10k
2.4k
33k
MPSA06
43k
9.09k
1%
1/4W
1k
1%
VOUT
1M GAIN
(1V/μA)
10M GAIN
(10V/μA)
MPSA06
5V
–5V
6241 F14
0.2Ω
–
+
LTC6240HV
1M
10μF
CERAMIC
OR FILM
8nV/√Hz
VOUT
1μF
LT1019-2.5
180nV/√Hz
相關(guān)PDF資料
PDF描述
MMK23-0441R1 CONN RACK/PANEL 44POS 5A
LTC6241IS8#TRPBF IC OP AMP DUAL R-R 8-SOIC
ICTE-15RL4G TVS 1500W 15V UNIDIRECT AXIAL
LPPB061NGCN-RC CONN HEADER .050" 6POS R/A PCB
7010.9901.57 FUSE 125MA 125V FAST PCB SMD T/R
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC6241IS8 制造商:Linear Technology 功能描述:OP Amp Dual GP R-R O/P 6V 8-Pin SOIC N
LTC6241IS8#PBF 功能描述:IC OP AMP DUAL R-R 8-SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 放大器類型:電壓反饋 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:33 V/µs 增益帶寬積:20MHz -3db帶寬:30MHz 電流 - 輸入偏壓:2nA 電壓 - 輸入偏移:3000µV 電流 - 電源:2.5mA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 16.5 V，±2.25 V ~ 8.25 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:帶卷 (TR)
LTC6241IS8#TR 制造商:Linear Technology 功能描述:OP Amp Dual GP R-R O/P 6V 8-Pin SOIC N T/R
LTC6241IS8#TRPBF 功能描述:IC OP AMP DUAL R-R 8-SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 放大器類型:電壓反饋 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:33 V/µs 增益帶寬積:20MHz -3db帶寬:30MHz 電流 - 輸入偏壓:2nA 電壓 - 輸入偏移:3000µV 電流 - 電源:2.5mA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 16.5 V，±2.25 V ~ 8.25 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:帶卷 (TR)
LTC6242 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual/Quad 18MHz, Low Noise, Rail-to-Rail, CMOS Op Amps
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，查看報價

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，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*