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LT1784IS6

2.5MHz, Over-The-Top Low Power, Rail-to-Rail Input and Output Op Amp in SOT-23

Linear Technology 

LT1784

APPLICATIONS INFORMATION

Shutdown

The 6-lead part includes a shutdown feature that disables

the part, reducing quiescent current and making the output

high impedance. The part can be shut down by bringing

the SHDN pin 1.2V or more above V–. When shut down,

the supply current is less than 1μA (V– ≤ VOUT ≤ V+). In

normal operation, the SHDN pin can be tied to V– or left

floating. See Typical Performance Characteristics curve,

“Supply Current vs SHDN pin Voltage.”

TYPICAL APPLICATIONS

Negative Rectifier

VIN +

LT1784

–

10k

V–

OUT

- ~80mV

WORKS WELL

TO 100kHz

Adjustable Clamp

V+

VIN +

LT1784

–

10k

V–

LT1784

VCLAMP

VOUT

V–

VCLAMP - ~80mV

WORKS WELL

TO 100kHz

1784 TA02

SIMPLIFIED SCHEMATIC

SHDN

J1

Q26

Q1

R1

6k

R2

1k

Q4 –IN

+

20μA

R3

1k

+IN

Q2

D1

R6 R7

1.5k 1.5k

Q7 Q8

Q11

Q12

R8

0.75k

R9

0.75k

Q9

Q10

Q13

Q3

D3

V+

Q22

Q19

Q15

Q14

Q17

Q16 Q18

Q20

OUT

Q21

Q25 Q23

Q24 Q5

Q6

D4 D5

R4

R5

2k

2k

V–

1784 SS

1784fa

10

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