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LT1490AIDD#PBF PDF预览

LT1490AIDD#PBF

更新时间: 2024-01-01 10:32:24
品牌 Logo 应用领域
凌特 - Linear 运算放大器
页数 文件大小 规格书
12页 315K
描述
LT1490A - Dual Over-The-Top Micropower Rail-to-Rail Input and Output Op Amps; Package: DFN; Pins: 8; Temperature Range: -40°C to 85°C

LT1490AIDD#PBF 技术参数

是否Rohs认证:符合生命周期:Transferred
零件包装代码:DFN包装说明:HVSON, SOLCC8,.11,20
针数:8Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.03Is Samacsys:N
放大器类型:OPERATIONAL AMPLIFIER架构:VOLTAGE-FEEDBACK
最大平均偏置电流 (IIB):0.008 µA25C 时的最大偏置电流 (IIB):0.0003 µA
标称共模抑制比:98 dB频率补偿:YES
最大输入失调电压:1700 µVJESD-30 代码:S-PDSO-N8
JESD-609代码:e3长度:3 mm
低-偏置:NO低-失调:NO
微功率:YES湿度敏感等级:1
负供电电压上限:-22 V标称负供电电压 (Vsup):-15 V
功能数量:2端子数量:8
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:HVSON
封装等效代码:SOLCC8,.11,20封装形状:SQUARE
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE包装方法:TAPE AND REEL
峰值回流温度(摄氏度):260功率:NO
电源:3/5/+-15 V可编程功率:NO
认证状态:Not Qualified座面最大高度:0.8 mm
最小摆率:0.03 V/us标称压摆率:0.07 V/us
子类别:Operational Amplifier最大压摆率:0.17 mA
供电电压上限:22 V标称供电电压 (Vsup):15 V
表面贴装:YES技术:BIPOLAR
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn)
端子形式:NO LEAD端子节距:0.5 mm
端子位置:DUAL处于峰值回流温度下的最长时间:30
标称均一增益带宽:200 kHz最小电压增益:50000
宽带:NO宽度:3 mm
Base Number Matches:1

LT1490AIDD#PBF 数据手册

 浏览型号LT1490AIDD#PBF的Datasheet PDF文件第2页浏览型号LT1490AIDD#PBF的Datasheet PDF文件第3页浏览型号LT1490AIDD#PBF的Datasheet PDF文件第4页浏览型号LT1490AIDD#PBF的Datasheet PDF文件第5页浏览型号LT1490AIDD#PBF的Datasheet PDF文件第6页浏览型号LT1490AIDD#PBF的Datasheet PDF文件第7页 
LT1490/LT1491  
Dual and Quad  
Micropower Rail-to-Rail  
Input and Output Op Amps  
U
FEATURES  
DESCRIPTION  
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 40µA of quiescent current per amplifier. These  
amplifiersarereversesupplyprotected;theydrawnocurrent  
for reverse supply up to 18V. The input range of the LT1490/  
LT1491includesbothsuppliesandtheoutputswingstoboth  
supplies. Unlike most micropower op amps, the LT1490/  
LT1491 can drive heavy loads; their rail-to-rail outputs drive  
20mA.TheLT1490/LT1491areunity-gainstableanddriveall  
capacitive loads up to 10,000pF when optional 0.22µF and  
150compensation is used.  
Rail-to-Rail Input and Output  
Single Supply Input Range: 0.4V to 44V  
Micropower: 50µA/Amplifier Max  
Specified on 3V, 5V and ±15V Supplies  
High Output Current: 20mA  
Output Drives 10,000pF with Output Compensation  
Reverse Battery Protection to 18V  
No Supply Sequencing Problems  
High Voltage Gain: 1500V/mV  
High CMRR: 98dB  
No Phase Reversal  
Gain Bandwidth Product: 200kHz  
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  
upto22V.Thereisnophasereversaloftheoutputforinputs  
22V below Vor 44V above V, independent of V+.  
U
APPLICATIONS  
Battery- or Solar-Powered Systems  
Portable Instrumentation  
Sensor Conditioning  
Supply Current Sensing  
The LT1490 dual op amp is available in the 8-pin SO and  
PDIPpackages. ThequadLT1491isavailableinthe14-pin  
Battery Monitoring  
Micropower Active Filters  
4mA to 20mA Transmitters  
SO and PDIP packages.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
TYPICAL APPLICATION  
Battery Monitor  
R
R
S
A
0.2Ω  
2k  
Q1  
2N3904  
CHARGER  
VOLTAGE  
+
A
R
I
A
'
BATT  
1/4 LT1491  
2k  
C
LOGIC  
1/4 LT1491  
+
R
B
Q2  
2N3904  
2k  
LOGIC HIGH (5V) = CHARGING  
LOGIC LOW (0V) = DISCHARGING  
+
B
R
B
'
1/4 LT1491  
2k  
LOAD  
+
D
+
R
G
V
1/4 LT1491  
OUT  
10k  
V
= 12V  
BATT  
S1  
10k  
90.9k  
V
V
=
OUT  
OUT  
S1 = OPEN, GAIN = 1  
S1 = CLOSED, GAIN = 10  
R
= R  
A
S
B
I
=
AMPS  
BATT  
1490/91 TA01  
(R )(R /R )(GAIN) GAIN  
V
= 5V, 0V  
S
G
A
1

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