Direct Replacement / High Performance Upgrade for the RC4739, uA739 and MC1303 Dual Op-Amps

MADE IN USA


This Drop In Board is a direct replacement and upgrade for the two RC4739 Op-Amps in the
AEG Telefunken M15 / M15A Playback
BC-WV1 ( Wiedergabe Verstärker BC-WV1 ) and Record Amplifier BC-AV1 ( Aufnahme Verstärker BC-WV1 )
and will substantially lower the noise floor and improve distortion.

This unit will enhance any Equipment in performance which utilizes the
RC4739, uA739 and MC1303!

Our Drop In Circuit Board contains the standard Audio OP AMP NE5532
A (High Grade Version) from Ti and can be directly
soldered into the RC4739 location on the Printed Circuit Board or just inserted into a 14 PIN DIP Socket if the PCB has a such a socket.

The Device is fully Pin compatible and exceeds the original maximum Operating Voltage of the
RC4739, uA739 and MC1303!

The replacement is therefor easy and hassle free.

The Pins are Gold Plated and the entire assembly is PB-Free (Europe)


Performance Comparison Chart

Vsy = +/- 15.0 V, Vcm = 0 V, TA = 25°C

Original RC 4739, μA739 and MC 1303

NE5532A Drop In DIP Board

Ultra Low Noise Rail to Rail Precision OP AMP

Parameters

Test Condition

MIN

TYP

MAX

MIN

TYP

MAX

Units

Input Offset Voltage

Rs ≤ 10KΩ

 

3.0

7.5

 

0.5

4

mV

Input Offset Current

 

 

7.0

300

 

10

150

nA

Input Bias Current

 

 

50

800

 

200

800

nA

Input Impedance, Differential

 

0.3 ?

5.0 ?

 

 


 

pF

Input Impedance, Common Mode

 

 

 

 

 


 

pF

Large Signal Voltage Gain 

 

 

46

 

25

100

 

dB

Power Supply Rejection Ratio

Vsy = +/- 2 V to +/- 18V

76

100

 



 

dB

Common-Mode Rejection Ratio

VCM = +/-14 V, -40°C ≤ T ≤ +125°C

70

100

 

70

100

 

dB

Input Voltage Range

 

-14

 

+14

-15

 

+15

V

DYNAMIC PERFORMANCE

Slew Rate

RL = 2 kΩ

 

1.0

 


9

 

V/μs

Gain Bandwidth Product

VIN = 5 mV p-p, RL = 10 kΩ, AV = 100

 

 

 

 


 

MHz

Unity-Gain Crossover

VIN = 5 mV p-p, RL = 10 kΩ, AV = 1

 

3

 

 


 

MHz

Phase Margin

 

 

 

 

 


 

Deg.

-3 dB Closed-Loop Bandwidth

AV = 1, VIN = 5 mV p-p

 

 

 

 

10

 

MHz

Settling Time

AV = 10, VIN = 10V p-p; 0.1%

 

 

 

 

4

 

μs

Total Harmonic Distortion Plus Noise

VIN = 5 V rms, RL = 2 kΩ, f = 1 kHz

 

0.05

 

 

0.003

 

%

NOISE PERFORMANCE

Voltage Noise

0.1 Hz to 10 Hz

 

2.5

 

 


 

μV p-p

Voltage Noise Density

f = 1KHz

 

10 (100Hz)

 

 

5

 

nV/Hz

Current Noise Density

 

 

 

 

 

0.7

 

pA/Hz

 

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RC4739 uA739 MC1303 Drop In DIP Board Ultra Low Noise OP AMP NE5532A (High Grade Version) Upgrade

  • Brand: TitanAudio Ltd.
  • Product Code: RC4739 uA739 MC1303 Drop In DIP Board
  • Availability: In Stock
  • $16.95

  • Ex Tax: $16.95

  • 4 or more $15.95
  • 6 or more $14.95
  • 8 or more $13.95
  • 10 or more $12.95
  • 20 or more $11.95