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參數(shù)資料
| 型號： | LT1369CS#PBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 5/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC OP-AMP R-R IN/OUT QUAD 14SOIC |
| 標(biāo)準(zhǔn)包裝： | 55 |
| 放大器類型： | 通用 |
| 電路數(shù)： | 4 |
| 輸出類型： | 滿擺幅 |
| 轉(zhuǎn)換速率： | 0.065 V/µs |
| 增益帶寬積： | 160kHz |
| 電流 - 輸入偏壓： | 10nA |
| 電壓 - 輸入偏移： | 200µV |
| 電流 - 電源： | 370µA |
| 電流 - 輸出 / 通道： | 75mA |
| 電壓 - 電源，單路/雙路(±)： | 1.8 V ~ 30 V，±0.9 V ~ 15 V |
| 工作溫度： | 0°C ~ 70°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-SO |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 1318 (CN2011-ZH PDF) |
LT1366/LT1367
LT1368/LT1369
1366fb
applicaTions inForMaTion
Improved Supply Rejection in the LT1368/LT1369
The LT1368/LT1369 are variations of the LT1366/LT1367
offering greater supply rejection and lower high frequency
outputimpedance.TheLT1368/LT1369requirea0.1Fload
capacitance for compensation. The output capacitance
forms a filter, which reduces pickup from the supply and
lowers the output impedance. This additional filtering is
helpfulinmixedanalog/digitalsystemswithcommonsup-
plies, or systems employing switching supplies. Filtering
alsoreduceshighfrequencynoise,whichmaybebeneficial
when driving A/D converters.
Figure4showstheoutputsoftheLT1366/LT1368perturbed
by a 200mVP-P 50kHz square wave added to the positive
supply. The LT1368’s power supply rejection is about ten
times greater than that of the LT1366 at 50kHz. Note the
5-to-1 scale change in the output voltage traces.
The tolerance of the external compensation capacitor is
not critical. The plots of Overshoot vs Load Current in the
Typical Performance Characteristics section illustrate the
effect of a capacitive load.
2s/DIV
VOUT
100mV/DIV
V+ (AC)
100mV/DIV
LT1366 F04a
2s/DIV
VOUT
20mV/DIV
V+ (AC)
100mV/DIV
LT1366 F04b
Figure 4a. LT1366 Power Supply Rejection Test
Figure 4b. LT1368 Power Supply Rejection Test
Typical applicaTions
Buffering A/D Converters
Figure 5 shows the LT1368 driving an LTC1288 2-chan-
nel micropower A/D converter (ADC). The LTC1288 can
accommodate voltage references and input signals equal
to the supply rails. The sampling nature of this ADC
eliminates the need for an external sample-and-hold, but
may call for a drive amplifier because of the ADC’s 12s
settling requirement. The LT1368’s rail-to-rail operation
and low input offset voltage make it well-suited for low
power, low frequency A/D applications. Either the LT1366
or LT1368 could be used for this application. However,
for low frequencies (f < 1kHz) the LT1368 provides better
supply rejection.
CS/SHDN
CH0
CH1
GND
VCC (REF)
CLK
DOUT
DIN
LTC1288
–
+
–
+
TO P
1F
0.1F
VCC
V0
V1
1/2 LT1368
0.1F
LT1366 FO5
Figure 5. 2-Channel Low Power A/D Converter
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| LT1370CR | 功能描述:IC REG MULTI CONFIG ADJ 6A D2PAK RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 設(shè)計(jì)資源:Design Support Tool 標(biāo)準(zhǔn)包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:100mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細(xì)型，TSOT-23-5 包裝:剪切帶 (CT) 供應(yīng)商設(shè)備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT |
| LT1370CR#PBF | 功能描述:IC REG MULTI CONFIG ADJ 6A D2PAK RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:250 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開關(guān):2MHz 電流 - 輸出:500mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:6-SON（1.45x1） 產(chǎn)品目錄頁面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2 |
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