Datasheet > LT1490_15

LT1490_15

更新时间： 2024-09-25 01:17:31

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
12页	223K
描述
Dual and Quad Micropower Rail-to-Rail Input and Output Op Amps

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

LT1490_15 数据手册

LT1490/LT1491

Dual and Quad

Micropower Rail-to-Rail

Input and Output Op Amps

FEATURES

DESCRIPTIO

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

150Ω compensation is used.

■

Rail-to-Rail Input and Output

■

Single Supply Input Range: –0.4V to 44V

■

Micropower: 50µA/Amplifier Max

■

MSOP Package

■

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

■

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 V^–or 44V above V^–, independent of V⁺.

■

Gain Bandwidth Product: 200kHz

APPLICATIO S

■

Battery- or Solar-Powered Systems

Portable Instrumentation

Sensor Conditioning

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.

■

Supply Current Sensing

■

Battery Monitoring

■

Micropower Active Filters

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.

■

4mA to 20mA Transmitters

, LTC and LT are registered trademarks of Linear Technology Corporation.

TYPICAL APPLICATIO

Battery Monitor

0.2Ω

2N3904

CHARGER

VOLTAGE

BATT

–

1/4 LT1491

LOGIC

–

1/4 LT1491

LOGIC HIGH (5V) = CHARGING

2N3904

LOGIC LOW (0V) = DISCHARGING

1/4 LT1491

–

LOAD

1/4 LT1491

OUT

10k

BATT

= 12V

–

10k

90.9k

OUT

S1 = OPEN, GAIN = 1

S1 = CLOSED, GAIN = 10

= R

AMPS

BATT

1490/91 TA01

(R )(R /R )(GAIN) GAIN

= 5V, 0V

12 3 4 5 6 7...12

中文翻译

下载PDF

与LT1490_15相关器件

型号	品牌	获取价格	描述	数据表
LT1490A	Linear	获取价格	Dual Over-The-Top Micropower Rail-to-Rail Input and Output Op Amp
LT1490A	ADI	获取价格	双通道、Over-The-Top、微功率、轨至轨输入和输出运算放大器
LT1490A_1	Linear	获取价格	Dual/Quad Over-The-Top Micropower Rail-to-Rail Input and Output Op Amps
LT1490A_15	Linear	获取价格	Dual/Quad Over-The-Top Micropower Rail-to-Rail Input and Output Op Amps
LT1490ACDD	Linear	获取价格	Dual/Quad Over-The-Top Micropower Rail-to-Rail Input and Output Op Amps
LT1490ACDD#PBF	Linear	获取价格	LT1490A - Dual Over-The-Top Micropower Rail-to-Rail Input and Output Op Amps; Package: DFN
LT1490ACDD#TR	Linear	获取价格	Operational Amplifier, 2 Func, 1550uV Offset-Max, BIPolar, PDSO8
LT1490ACDD#TRPBF	Linear	获取价格	Dual Over-The-Top Micropower Rail-to-Rail Input and Output Op Amps
LT1490ACMS8	Linear	获取价格	Dual Over-The-Top Micropower Rail-to-Rail Input and Output Op Amp
LT1490ACMS8#TR	Linear	获取价格	LT1490A - Dual Over-The-Top Micropower Rail-to-Rail Input and Output Op Amps; Package: MSO

与LT1490_15相关文章

SK海力士量产12层HBM3E，容量高达36GB
2024-09-27

6
意法半导体传感器驱动Sphere，开启沉浸式电影新时代
2024-09-27

11
摩尔斯微电子在美国约书亚树国家公园测试 Wi-Fi HaLow
2024-09-18

79
贸泽上架Tallysman TW5386智能GNSS天线
2024-09-18

71

产品中心

服务支持

精选活动

关于我们

帮助中心

LT1490_15

LT1490_15 数据手册

与LT1490_15相关器件

与LT1490_15相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

LT1490_15

LT1490_15 数据手册

与LT1490_15相关器件

与LT1490_15相关文章

您还可以找

您在本页遇到什么问题？