LT1490AIS8 datasheet(9/12 Pages) LINER

Part #	LT1490AIS8

Description	Dual Over-The-Top Micropower Rail-to-Rail Input and Output Op Amp

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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9 / 12 page

9

LT1490A

–

+

VOUT

1490A TA02

100k

C

0.1

µF

VOUT = 5VP-P WITH 5V SUPPLY

IS = 200µA

59k

1/2 LT1490A

5V

R

50k

f = 1

2RC

AT VS = 5V, R = 50k, C = 1nF

OUTPUT IS 5kHz SLEW LIMITED TRIANGLE WAVE

–

+

VIN

1490A TA04

0.22

µF

CL ≤ 10,000pF

150

Ω

1/2 LT1490A

Square Wave Oscillator

Optional Output Compensation for

Capacitive Loads Greater Than 200pF

Q10

D5

Q9

Q1

Q7

R2

1k

R3

1k

R4

40k

Q8

Q5

–IN

+IN

Q11

Q12

D4

ONE AMPLIFIER

D2

Q2

D1

Q6

Q13

Q14

R1

30k

R5

40k

Q4

2

µA

+

Q15

Q19

D3

Q3

Q16

Q18

Q22

V +

Q17

Q20

Q21

OUT

V –

1490A SS

TYPICAL APPLICATIO S

SI PLIFIED SCHE ATIC

APPLICATIO S I FOR ATIO

Gain

The open-loop gain is almost independent of load when

the output is sourcing current. This optimizes performance

in single supply applications where the load is returned to

ground. The typical performance photo of Open-Loop

Gain for various loads shows the details.

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LT1490AIS8 Datasheet(PDF) 9 Page - Linear Technology

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