OP27AZ-883C Ver la hoja de datos (PDF) - Analog Devices

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OP27AZ-883C

Low Noise, Precision Operational Amplifier

Analog Devices 

OP27

A 150 Ω resistor and R1 and R2 gain resistors connected to a

noiseless amplifier generate 220 nV of noise in a 20 kHz

bandwidth, or 73 dB below a 1 mV reference level. Any practical

amplifier can only approach this noise level; it can never exceed

it. With the OP27 and T1 specified, the additional noise

degradation is close to 3.6 dB (or −69.5 referenced to 1 mV).

Data Sheet

REFERENCES

1. Lipshitz, S. R, “On RIAA Equalization Networks,” JAES,

Vol. 27, June 1979, p. 458–481.

2. Jung, W. G., IC Op Amp Cookbook, 2nd. Ed., H. W. Sams

and Company, 1980.

3. Jung, W. G., Audio IC Op Amp Applications, 2nd. Ed., H. W.

Sams and Company, 1978.

4. Jung, W. G., and Marsh, R. M., “Picking Capacitors,” Audio,

February and March, 1980.

5. Otala, M., “Feedback-Generated Phase Nonlinearity in

Audio Amplifiers,” London AES Convention, March 1980,

preprint 1976.

6. Stout, D. F., and Kaufman, M., Handbook of Operational

Amplifier Circuit Design, New York, McGraw-Hill, 1976.

Rev. H | Page 18 of 21

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