V+ of A1 of Figure 79. of the data sheet of OPA454 is 120V

K.N

Other Parts Discussed in Thread: OPA454

Hi,

ABSOLUTE MAXIMUM RATINGS of 2nd page of Supply Voltage of the data sheet of OPA454 is 120V.

V+ of A1(and V+ of A4) of the 26th page of figure 76. of the data sheet is written as +100V.
On the other hand, V+ of A1(and V+ of A4) of the 27th page of Figure 79. of the data sheet is written as +120V (ABSOLUTE MAXIMUM RATING).

Is V+ of A1 of Figure 79. the answer that which of follows, (a) or (b) is correct?

(a)　+100V
(b)　+120V

I think that (a) is correct.

Regards,

Keishi Nishijima

over 14 years ago

0 Matthew Hann over 14 years ago

TI__Expert 7185 points

Nishijima-san,

You are correct. The figure that you are referencing should have +100V as V+ and not +120V.

Thanks,

Matt

0 K.N over 14 years ago in reply to Matthew Hann

TI__Expert 4445 points

Hi,Matt

Your quick answer, thank you.
Please inform it of the time of the change of the OPA454 datasheet.

Regards,
Keishi Nishijima

0 Gaston Schelotto over 13 years ago

Expert 2840 points

Hello,

I'd like to add that if A3 output is at -98V, A1 non-inverting input is at +1V, which is within the absolute maximum ratings, but not within the region specified for linear operation

(-Vs+2.5V <Vin< +Vs-2.5V = +2.5 <Vin< 97.5V).

Regards,
Gaston

Amplifiers

Amplifiers forum

V+ of A1 of Figure 79. of the data sheet of OPA454 is 120V