- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄369846 > LT1491IS Voltage-Feedback Operational Amplifier PDF資料下載
參數(shù)資料
| 型號(hào)： | LT1491IS |
| 元件分類(lèi)： | 運(yùn)算放大器 |
| 英文描述： | Voltage-Feedback Operational Amplifier |
| 中文描述： | 電壓反饋運(yùn)算放大器 |
| 文件頁(yè)數(shù)： | 1/12頁(yè) |
| 文件大?。?/td> | 251K |
| 代理商： | LT1491IS |
1
LT1490/LT1491
Dual and Quad
Micropower Rail-to-Rail
Input and Output Op Amps
DESCRIPTIOU
I
Rail-to-Rail Input and Output
I
Single Supply Input Range: –0.4V to 44V
I
Micropower: 50
μ
A/Amplifier Max
I
MSOP Package
I
Specified on 3V, 5V and
±
15V Supplies
I
High Output Current: 20mA
I
Output Drives 10,000pF with Output Compensation
I
Reverse Battery Protection to 18V
I
No Supply Sequencing Problems
I
High Voltage Gain: 1500V/mV
I
High CMRR: 98dB
I
No Phase Reversal
I
Gain Bandwidth Product: 200kHz
The dual LT
1490 and quad LT1491 op amps operate on all
single and split supplies with a total voltage of 2V to 44V
drawing only 40
μ
A of quiescent current per amplifier. These
amplifiers are reverse supply protected; they draw no current
for reverse supply up to 18V. The input range of the LT1490/
LT1491 includes both supplies and the output swings to both
supplies. Unlike most micropower op amps, the LT1490/
LT1491 can drive heavy loads; their rail-to-rail outputs drive
20mA. The LT1490/LT1491 are unity-gain stable and drive all
capacitive loads up to 10,000pF when optional 0.22
μ
F and
150
compensation is used.
The LT1490/LT1491 have a unique input stage that oper-
ates and remains high impedance when above the positive
supply. The inputs take 44V both differential and common
mode even when operating on a 3V supply. Built-in resis-
tors protect the inputs for faults below the negative supply
up to 22V. There is no phase reversal of the output for inputs
22V below V
–
or 44V above V
–
, independent of V
+
.
The LT1490 dual op amp is available in the 8-pin MSOP,
SO and PDIP packages. The quad LT1491 is available in
the 14-pin SO and PDIP packages.
For new designs it is recommended that the LT1490A/
LT1491A be used instead of the LT1490/LT1491. See the
LT1490A/LT1491A data sheet for details.
I
Battery- or Solar-Powered Systems
Portable Instrumentation
Sensor Conditioning
I
Supply Current Sensing
I
Battery Monitoring
I
Micropower Active Filters
I
4mA to 20mA Transmitters
–
+
–
+
RA
2k
Q2
2N3904
S1
S1 = OPEN, GAIN = 1
S1 = CLOSED, GAIN = 10
R
A
= R
V
S
= 5V, 0V
10k
90.9k
V
OUT
LOGIC
1490/91 TA01
LOGIC HIGH (5V) = CHARGING
LOGIC LOW (0V) = DISCHARGING
R
G
10k
Q1
2N3904
R
S
0.2
CHARGER
VOLTAGE
A
1/4 LT1491
B
1/4 LT1491
R
A
'
2k
R
B
2k
V
BATT
= 12V
I
BATT
+
R
B
'
2k
LOAD
–
+
–
+
C
1/4 LT1491
D
1/4 LT1491
OUT
S
)(R
G
/R
A
)(GAIN)
V
OUT
GAIN
I
BATT
= (R
Battery Monitor
FEATURES
APPLICATIU
TYPICAL APPLICATIO
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
Powered by ICminer.com Electronic-Library Service CopyRight 2003
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1498IN8 | Operational Amplifier |
| LT1498IS8 | Operational Amplifier |
| LT1499IS | Operational Amplifier |
| LT1490AHMS8 | Voltage-Feedback Operational Amplifier |
| LT1490AHS8 | Voltage-Feedback Operational Amplifier |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1491IS#PBF | 功能描述:IC OP-AMP R-R IN/OUT QUAD 14SOIC RoHS:是 類(lèi)別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:Over-The-Top® 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類(lèi)型:通用 電路數(shù):4 輸出類(lèi)型:滿擺幅 轉(zhuǎn)換速率:0.028 V/µs 增益帶寬積:105kHz -3db帶寬:- 電流 - 輸入偏壓:3nA 電壓 - 輸入偏移:100µV 電流 - 電源:3.3µA 電流 - 輸出 / 通道:12mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 12 V，±1.35 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:剪切帶 (CT) 其它名稱(chēng):OP481GRUZ-REELCT |
| LT1491IS#TRPBF | 功能描述:IC OP-AMP R-R IN/OUT QUAD 14SOIC RoHS:是 類(lèi)別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:Over-The-Top® 標(biāo)準(zhǔn)包裝:73 系列:Over-The-Top® 放大器類(lèi)型:通用 電路數(shù):4 輸出類(lèi)型:滿擺幅 轉(zhuǎn)換速率:0.07 V/µs 增益帶寬積:200kHz -3db帶寬:- 電流 - 輸入偏壓:1nA 電壓 - 輸入偏移:285µV 電流 - 電源:50µA 電流 - 輸出 / 通道:25mA 電壓 - 電源，單路/雙路(±):2 V ~ 44 V，±1 V ~ 22 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:16-WFDFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:16-DFN-EP（5x3） 包裝:管件 |
| LT1492 | 制造商:LINER 制造商全稱(chēng):Linear Technology 功能描述:5MHz, 3V/us, Low Power Single Supply, Dual and Quad Precision Op Amps |
| LT1492CN8 | 功能描述:IC OP-AMP LOW POWER DUAL 8-DIP RoHS:否 類(lèi)別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類(lèi)型:通用 電路數(shù):4 輸出類(lèi)型:滿擺幅 轉(zhuǎn)換速率:0.028 V/µs 增益帶寬積:105kHz -3db帶寬:- 電流 - 輸入偏壓:3nA 電壓 - 輸入偏移:100µV 電流 - 電源:3.3µA 電流 - 輸出 / 通道:12mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 12 V，±1.35 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:剪切帶 (CT) 其它名稱(chēng):OP481GRUZ-REELCT |
| LT1492CN8#PBF | 功能描述:IC OP-AMP LOW POWER DUAL 8-DIP RoHS:是 類(lèi)別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類(lèi)型:通用 電路數(shù):4 輸出類(lèi)型:滿擺幅 轉(zhuǎn)換速率:0.028 V/µs 增益帶寬積:105kHz -3db帶寬:- 電流 - 輸入偏壓:3nA 電壓 - 輸入偏移:100µV 電流 - 電源:3.3µA 電流 - 輸出 / 通道:12mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 12 V，±1.35 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:剪切帶 (CT) 其它名稱(chēng):OP481GRUZ-REELCT |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。