RC4558: when VCC- is GND, how much should the minimum voltage supply at Vcc+ be?

Cathy Cai

Prodigy 360 points

Part Number: RC4558
Other Parts Discussed in Thread: LM358B, TL072H, TL082H, LM358LV

The customer is using RC4558IDR. they want to figure out that when Vcc- is GND, is the minimum voltage at Vcc+=5V?

or the minimum voltage should be 10V =(+5V - (-5V)) ?

In the datasheet, the minimum voltage at Vcc+ is +5V, the maximum voltage at Vcc- is -5V.

How to define the minimum voltage at Vcc+, when Vcc- is GND?

Can the device be used at Vcc- is GND?

Looking forward to your reply

Best regards.

over 2 years ago

0 Ron Michallick over 2 years ago

TI__Guru*** 139956 points

Hello Cathy,

10V is the recommended minimum single supply voltage.

Keep in mind that RC4558 is not a rail to rail input or output. Input common mode voltage can't be 0V. Output won't go down to 0V.

0 Cathy Cai over 2 years ago in reply to Ron Michallick

TI__Prodigy 360 points

Hello Ron,

Thanks a lot.

0 Cathy Cai over 2 years ago in reply to Ron Michallick

TI__Prodigy 360 points

Hello Ron,

Do we have pin to pin device of RC4558 with lower supply voltage? The customer want to operate the device under Vcc+ is 8V, and Vcc- is GND. Does TI have suitable devices in such condition?

Best regards.

0 Caro Walter over 2 years ago in reply to Cathy Cai

TI__Genius 17487 points

Hey Cathy,

Can you tell us more about your application requirements? VCC = 8V, VEE = GND, P2P with RC4558, anything else? Input/output requirements?

All the best,
Carolina

0 Cathy Cai over 2 years ago in reply to Caro Walter

TI__Prodigy 360 points

Hi Caro,

No more requirement. Thanks.

Cathy

+1 Ron Michallick over 2 years ago in reply to Cathy Cai

TI__Guru*** 139956 points

Cathy,

For less performance and lower cost, there is LM358B

For better performance and similar cost, there is TL072H or TL082H

If you can lower supply to 5V, there is LM358LV

0 Cathy Cai over 2 years ago in reply to Ron Michallick

TI__Prodigy 360 points

Hi Ron

Well received. Thanks so much!

Audio

Audio forum

RC4558: when VCC- is GND, how much should the minimum voltage supply at Vcc+ be?