- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄6067 > LTC6244IMS8#PBF (Linear Technology)IC OP AMP DUAL R-R 8-MSOP PDF資料下載
參數(shù)資料
| 型號： | LTC6244IMS8#PBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 8/26頁 |
| 文件大小： | 0K |
| 描述： | IC OP AMP DUAL R-R 8-MSOP |
| 標(biāo)準(zhǔn)包裝： | 50 |
| 放大器類型： | 通用 |
| 電路數(shù)： | 2 |
| 輸出類型： | 滿擺幅 |
| 轉(zhuǎn)換速率： | 35 V/µs |
| 增益帶寬積： | 50MHz |
| 電流 - 輸入偏壓： | 1pA |
| 電壓 - 輸入偏移： | 40µV |
| 電流 - 電源： | 6.25mA |
| 電流 - 輸出 / 通道： | 35mA |
| 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-TSSOP，8-MSOP（0.118"，3.00mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-MSOP |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 1322 (CN2011-ZH PDF) |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁當(dāng)前第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁
LTC6244
16
6244fb
resistance of the particular application. Specically, these
ampliers exhibit the noise of a 4k resistor, meaning it is
desirable to keep the source and feedback resistance at or
below this value, i.e., RS + RG||RFB ≤ 4k. Above this total
source impedance, the noise voltage is not dominated by
the amplier.
Noise current can be estimated from the expression in =
√2qIB, where q = 1.6 10–19 coulombs. Equating √4kTRΔf
and RS√2qIBΔf shows that for source resistors below
50GΩ the amplier noise is dominated by the source
resistance. See the Typical Characteristics curve Noise
Current vs Frequency.
Proprietary design techniques are used to obtain simulta-
neous low 1/f noise and low input capacitance. Low input
capacitance is important when the amplier is used with
high source and feedback resistors. High frequency noise
from the amplier tail current source, ITAIL in Figure 1,
couples through the input capacitance and appears across
these large source and feedback resistors.
Stability
The good noise performance of these op amps can be
attributed to large input devices in the differential pair.
Above several hundred kilohertz, the input capacitance
can cause amplier stability problems if left unchecked.
When the feedback around the op amp is resistive (RF), a
pole will be created with RF, the source resistance, source
capacitance (RS, CS), and the amplier input capacitance.
In low gain congurations and with RF and RS in even
the kilohm range (Figure 3), this pole can create excess
phase shift and possibly oscillation. A small capacitor CF
in parallel with RF eliminates this problem.
Achieving Low Input Bias Current
The DD package is leadless and makes contact to the PCB
beneath the package. Solder ux used during the attach-
ment of the part to the PCB can create leakage current
paths and can degrade the input bias current performance
of the part. All inputs are susceptible because the backside
paddle is connected to V– internally. As the input voltage
changes or if V– changes, a leakage path can be formed
and alter the observed input bias current. For lowest bias
current, use the LTC6244 in the MS8 package.
Photodiode Ampliers
Photodiodes can be broken into two categories: large area
photodiodes with their attendant high capacitance (30pF
to 3000pF) and smaller area photodiodes with relatively
low capacitance (10pF or less). For optimal signal-to-noise
performance, a transimpedance amplier consisting of an
inverting op amp and a feedback resistor is most commonly
used to convert the photodiode current into voltage. In low
noise amplier design, large area photodiode ampliers
require more attention to reducing op amp input voltage
noise, while small area photodiode ampliers require
more attention to reducing op amp input current noise
and parasitic capacitances.
Figure 3. Compensating Input Capacitance
APPLICATIONS INFORMATION
+
–
CIN
CS
6244 F03
RF
RS
OUTPUT
CF
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC6244IDD#PBF | IC OP AMP DUAL R-R 8-DFN |
| LT1097S8#PBF | IC PREC OP-AMP LOWCOST/PWR 8SOIC |
| LT1055CN8#PBF | IC PREC OP-AMP JFET HI-SPD 8-DIP |
| FBA09A12H1BS | FAN 12VDC 92X25.5MM WITH SENSOR |
| LT1006S8#PBF | IC PREC OP-AMP 5V SINGLE 8-SOIC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC6246 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Precision, Low Power Rail-to-Rail Input/Output |
| LTC6246CS6 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:180MHz, 1mA Power Efficient Rail-to-Rail I/O Op Amps |
| LTC6246CS6#PBF | 制造商:Linear Technology 功能描述:OP AMP RRIO 5.25V 180MHZ 6TSOT23 制造商:Linear Technology 功能描述:IC OP-AMP 180MHZ 90V/ TSOT-23-6 制造商:Linear Technology 功能描述:OP AMP, RRIO, 5.25V, 180MHZ, 6TSOT23 制造商:Linear Technology 功能描述:SC-Amps/High Speed, Cut Tape Single 180MHz, 1MA RRIO Op Amp 制造商:Linear Technology 功能描述:IC, OP-AMP, 180MHZ, 90V/ us, TSOT-23-6, Op Amp Type:Low Power, No. of Amplifiers:1, Slew Rate:90V/s, Supply Voltage Range:2.5V to 5.25V, Amplifier Case Style:TSOT-23, No. of Pins:6, Bandwidth:180MHz, Operating Temperature Min:0C , RoHS Compliant: Yes |
| LTC6246CS6#TRMPBF | 功能描述:IC OPAMP R-R I/O 180MHZ TSOT23-6 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) |
| LTC6246CS6#TRPBF | 功能描述:IC OPAMP R-R I/O 180MHZ TSOT23-6 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) |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。