Datasheet > LT1490A

LT1490A

更新时间： 2023-12-20 18:44:05

品牌	Logo	应用领域
亚德诺 - ADI		放大器运算放大器
页数	文件大小	规格书
18页	228K
描述
双通道、Over-The-Top、微功率、轨至轨输入和输出运算放大器

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数据手册

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LT1490A 数据手册

LT1490A/LT1491A

TYPICAL APPLICATION

Ring-Tone Generator

60V

R16

100k

47k

IRF628

2N3904

10k

100k

10k

0.047μF

0.47μF

R17

620Ω

15V

100k

300k

R11

10k

1N4148

1/4 LT1491A

33k

1/4 LT1491A

–

16k

–

0.068μF

–

R18

100Ω

1/4 LT1491A

47μF

R26

R24

420

R23

4.7k

R12

10k

R14

10k

1.6M

620k

1μF

R10

620k

SMOOTHING FILTER

OPTO1*

R25

4.7k

R13

130k

R15

47k

0.01μF

CADENCE OSCILLATOR

20Hz OSCILLATOR

2N3904

UP TO

LOAD TEN

PHONES

15V

R19

620Ω

2N3906

IRF9620

R21

150Ω

0.033μF

1490A TA03

*LED OF OPTO1 ILLUMINATES WHEN THE PHONE IS OFF THE HOOK

SEE DESIGN NOTE DN134 FOR A DISCUSSION OF THE CIRCUIT

POWER AMPLIFIER

R20

100k

–180V

RELATED PARTS

PART NUMBER

LT1366/LT1367

LT1636

DESCRIPTION

COMMENTS

Dual/Quad Precision, Rail-to-Rail Input and Output Op Amps

475μV V

, 500V/mV A

, 400kHz GBW

OS(MAX)

VOL(MIN)

Single Over-The-Top Micropower Rail-to-Rail Input and Output 55μA Supply Current, V Extends 44V Above V

Op Amp

Independent of V , MSOP Package, Shutdown Function

LT1638/LT1639

LT1782

Dual/Quad 1.2MHz Over-The-Top Micropower, Rail-to-Rail

Input and Output Op Amps

0.4V/μs Slew Rate, 230μA Supply Current per Amplifier

Micropower, Over-The-Top, SOT-23, Rail-to-Rail Input and

Output Op Amp

SOT-23, 800μV V , I = 55μA (Max),

OS(MAX) S

Gain-Bandwidth = 200kHz, Shutdown Pin

LT1783

1.2MHz, Over-The-Top, Micropower, Rail-to-Rail Input and

Output Op Amp

SOT-23, 800μV V , I = 300μA (Max),

OS(MAX)

Gain-Bandwidth = 1.2MHz, Shutdown Pin

14901afd

LT 1211 REV D • PRINTED IN USA

LinearTechnology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

●

(408) 432-1900 FAX: (408) 434-0507 www.linear.com

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