LT1115C View Datasheet(PDF) - Linear Technology

Part Name

Description

MFG CO.

LT1115C

Ultralow Noise, Low Distortion, Audio Op Amp

Linear Technology 

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TYPICAL APPLICATIO S

LT1115

18V

– 18V

GAIN: 40dB

30dB

24.9Ω

75Ω

100pF

2.49k

INPUT

0.01µF 100Ω

2– 7

3 +LT1115

4

100µF

35V

100k

18V

– 18V

100µF RESISTORS 1% METAL FILM

35V CAPACITORS—BYPASS: LOW ESR

OTHER: HIGH QUALITY FILM

NOTE 1: USE SINGLE POINT

GROUNDING TECHNIQUES

18V

+ 1µF

35V

6

475Ω

OUTPUT

TO

RIAA

STAGE

1M

7

3

6

LT1097

2

1M

1µF

100V

4

1µF

100V

1µF

– 18V

35V

LT1115 • TA06

Figure 3. RIAA Moving Coil “Pre-Pre” Amplifier

(40/30dB Gain Low Noise Servo’d Amplifier)

CCIF IMD Test (Twin Tones at 13

and 14kHz) (Figure 3)

0.1

TA = 25°C

VS = ± 18V

RL = 100k

0.010

0.001

0.0001

0.1

1

10

OUTPUT AMPLITUDE (VRMS)

LT1115 • TA08

Noise vs Frequency (Figure 3)

10µ

TA = 25°C

VS = ±18V

INPUT GROUNDED

1µ

100n

10n

20

100

1k

20k

FREQUENCY (Hz)

NOTE: NOISE AT 1kHz REFERRED TO INPUT ~2nV

LT1115 • TA09

1115fa

11

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