參數(shù)資料
型號(hào)： LT1490CN8
廠(chǎng)商： LINEAR TECHNOLOGY CORP
元件分類(lèi)： 運(yùn)動(dòng)控制電子
英文描述： Dual and Quad Micropower Rail-to-Rail Input and Output Op Amps
中文描述： DUAL OP-AMP, 1400 uV OFFSET-MAX, 0.2 MHz BAND WIDTH, PDIP8
封裝： 0.300 INCH, PLASTIC, DIP-8
文件頁(yè)數(shù)： 1/12頁(yè)
文件大?。?/td> 312K
代理商： LT1490CN8
1
LT1490/LT1491
Dual and Quad
Micropower Rail-to-Rail
Input and Output Op Amps
DESCRIPTIO
N
U
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 SO and
PDIP packages. The quad LT1491 is available in the 14-pin
SO and PDIP packages.
, LTC and LT are registered trademarks of Linear Technology Corporation.
FEATURES
I
Rail-to-Rail Input and Output
I
Single Supply Input Range: –0.4V to 44V
I
Micropower: 50
μ
A/Amplifier Max
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
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
APPLICATIO
S
U
–
+
–
+
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
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
TYPICAL APPLICATIO
N
U
相關(guān)PDF資料
PDF描述
LT1490CS8 Dual and Quad Micropower Rail-to-Rail Input and Output Op Amps
LT1491 Dual and Quad Micropower Rail-to-Rail Input and Output Op Amps
LT1491CN Dual and Quad Micropower Rail-to-Rail Input and Output Op Amps
LT1491CS Dual and Quad Micropower Rail-to-Rail Input and Output Op Amps
LT1494 1.5UA Max, Single, Dual and Quad Over-The-Top Precision Rail-to-Rail Input and Output Op Amps
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LT1490CN8#PBF 功能描述:IC OPAMP R-R IN/OUT DUAL 8-DIP RoHS:是 類(lèi)別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:Over-The-Top® 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(lèi)型:RF/IF 差分 電路數(shù):1 輸出類(lèi)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(lèi)型:表面貼裝 封裝/外殼:16-VQFN 裸露焊盤(pán)，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(yè)面:551 (CN2011-ZH PDF) 其它名稱(chēng):ADL5561ACPZ-R7CT
LT1490CN8PBF 制造商:Linear Technology 功能描述:Dual low power op amp,LT1490CN8 DIP8
LT1490CS8 功能描述:IC OP-AMP R-R IN/OUT DUAL 8-SOIC RoHS:否 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(mǎn)擺幅 轉(zhuǎn)換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:2pA 電壓 - 輸入偏移:1000µV 電流 - 電源:85µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 6 V 工作溫度:-40°C ~ 125°C 安裝類(lèi)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-SOICN 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:680 (CN2011-ZH PDF) 其它名稱(chēng):MCP6L04T-E/SLCT
LT1490CS8#PBF 功能描述:IC OP-AMP R-R IN/OUT DUAL 8-SOIC RoHS:是 類(lèi)別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:Over-The-Top® 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(lèi)型:RF/IF 差分 電路數(shù):1 輸出類(lèi)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(lèi)型:表面貼裝 封裝/外殼:16-VQFN 裸露焊盤(pán)，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(yè)面:551 (CN2011-ZH PDF) 其它名稱(chēng):ADL5561ACPZ-R7CT
LT1490CS8#TR 制造商:Linear Technology 功能描述:OP Amp Dual GP R-R I/O ±22V/44V 8-Pin SOIC N T/R
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