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Tanssion > blog > amplifiers > Overview of RC4558P Operational Amplifier

Overview of RC4558P Operational Amplifier

Author: Tanssion Date: 2023-11-01 Hits: 0

Ⅰ. RC4558P Description
Ⅱ. RC4558P Pinout
Ⅲ. RC4558P 3D Model
Ⅳ. RC4558P Specifications
Ⅴ. RC4558P Feature
Ⅵ. RC4558P Applications
Ⅶ. RC4558P Packaging Information
Ⅷ. RC4558P Layout
Ⅸ. RC4558P Datasheet


Ⅰ. RC4558P Description


The RC4558 device is a dual general-purpose operational amplifier, with each half electrically similar to the µA741, except that offset null capability is not provided.


The high common-mode input voltage range and the absence of latch-up make this amplifier ideal for voltage-follower applications. The device is short-circuit protected, and the internal frequency compensation ensures stability without external components.




Ⅱ. RC4558P Pinout


1. RC4558P  Pinout 



2.RC4558P Pin Functions


PIN

TYPE

DESCRIPTION

NAME

NO.

1IN+

3

I

Noninverting input

1IN–

2

I

Inverting input

1OUT

1

O

Output

2IN+

5

I

Noninverting input

2IN+

6

I

Inverting Input

2OUT

7

O

Output

VCC+

8

Positive supply

VCC–

4

Negative supply



Ⅲ. RC4558P 3D Model


1. RC4558P Symbol 


2. RC4558P Footprint


3.RC4558P 3D Model


 

Ⅳ. RC4558P Specifications


ECCN (US)

EAR99

Part Status

Active

HTS

8542.33.00.01

Automotive

No

PPAP

No

Type

General Purpose Amplifier

Manufacturer Type

General Purpose Amplifier

Number of Channels per Chip

2

Process Technology

Bipolar

Maximum Input Offset Voltage (mV)

6@±15V

Minimum Dual Supply Voltage (V)

±5

Typical Dual Supply Voltage (V)

±9|±12

Maximum Dual Supply Voltage (V)

±15

Maximum Input Offset Current (uA)

0.2@±15V

Maximum Input Bias Current (uA)

0.5@±15V

Maximum Quiescent Current (mA)

5.6@±15V

Power Supply Type

Dual

Typical Slew Rate (V/us)

1.7@±15V

Typical Input Noise Voltage Density (nV/rtHz)

8@±15V

Typical Voltage Gain (dB)

109.54

Minimum CMRR (dB)

70

Minimum CMRR Range (dB)

70 to 71

Typical Gain Bandwidth Product (MHz)

3

Shut Down Support

No

Minimum Operating Temperature (°C)

0

Maximum Operating Temperature (°C)

70

Packaging

Tube

Mounting

Through Hole

Package Height

5.08(Max) - 0.51(Min)

Package Width

6.6(Max)

Package Length

10.16(Max)

PCB changed

8

Standard Package Name

DIP

Supplier Package

PDIP

Pin Count

8

Lead Shape

Through Hole



Ⅴ. RC4558P Feature

1. Continuous Short-Circuit Protection
2. Wide Common-Mode and Differential Voltage Ranges
3. No Frequency Compensation Required
4. Low Power Consumption
5. No Latch-Up
6. Unity-Gain Bandwidth: 3 MHz Typ
7. Gain and Phase Match Between Amplifiers
8. Low Noise: 8 nV/NHz Typ at 1 kHz


Ⅵ. RC4558P Applications 

RC4558P Typical Application

Some applications require differential signals. Picture as below will show a simple circuit to convert a single-ended input of 2 V to 10 V into differential output of ±8 V on a single 15-V supply. The output range is intentionally limited to maximize linearity. The circuit is composed of two amplifiers. One amplifier acts as a buffer and creates a voltage, VOUT+. The second amplifier inverts the input and adds a reference voltage to generate VOUT– . Both VOUT+ and VOUT– range from 2 V to 10 V. The difference, VDIFF, is the difference between VOUT+ and VOUT– .



Ⅶ. RC4558P Packaging Information

 


Ⅷ. RC4558P Layout
 
Use good PCB layout practices showing as below : 

• Noise can propagate into analog circuitry through the power pins of the circuit as a whole and the operational amplifier. Bypass capacitors are used to reduce the coupled noise by providing low impedance power sources local to the analog circuitry. – Connect low-ESR, 0.1-μF ceramic bypass capacitors between each supply pin and ground, placed as close to the device as possible. A single bypass capacitor from V+ to ground is applicable for single supply applications. 

• Separate grounding for analog and digital portions of circuitry is one of the simplest and most-effective methods of noise suppression. One or more layers on multilayer PCBs are usually devoted to ground planes. A ground plane helps distribute heat and reduces EMI noise pickup. Make sure to physically separate digital and analog grounds, paying attention to the flow of the ground current. For more detailed information, refer to Circuit Board Layout Techniques, (SLOA089). 

• To reduce parasitic coupling, run the input traces as far away from the supply or output traces as possible. If it is not possible to keep them separate, it is much better to cross the sensitive trace perpendicular as opposed to in parallel with the noisy trace. 

• Place the external components as close to the device as possible. Keeping RF and RG close to the inverting input minimizes parasitic capacitance, as shown in Layout Example. 

• Keep the length of input traces as short as possible. Always remember that the input traces are the most sensitive part of the circuit. 

• Consider a driven, low-impedance guard ring around the critical traces. A guard ring can significantly reduce leakage currents from nearby traces that are at different potentials.



Ⅸ. RC4558P Datasheet



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Frequently Asked Questions

1、What is RC4558P ?
The RC4558 device is a dual general-purpose operational amplifier, with each half electrically similar to the µA741, except that offset null capability is not provided.
2、What is Applications of RC4588P ?
DVD Recorders and Players / Pro Audio Mixers
3、What is operational amplifier and its types ?
Op-amps can be classified into 3 main types based on the input/output voltage range: Dual Supply, Single-Supply, and Rail-to-Rail.
4、What type of protection is built in?
Short-circuit protection

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