Author Topic: Actual bandwidth of this Avago isolation amplifier  (Read 1617 times)

0 Members and 1 Guest are viewing this topic.

Offline onemilimeterTopic starter

  • Frequent Contributor
  • **
  • Posts: 314
Actual bandwidth of this Avago isolation amplifier
« on: July 01, 2011, 12:56:02 pm »
I've few questions on the ACPL-790B/790A/7900:
http://www.avagotech.com/pages/en/optocouplers_plastic/plastic_miniature_isolation_amplifier/acpl-7900-000e/

According to the datasheet (Table 7, pp. 6), the typical gain of the parts is (G0,G1,G3) 8.2 V/V.

Figures 17 & 18 (pp. 10) show the frequency response of the part. Does it mean that with a gain of 8.2V/V, the actual bandwidth of the part is 200kHz/8 = 25kHz only?

Cheers
« Last Edit: July 01, 2011, 12:57:47 pm by onemilimeter »
 

Alex

  • Guest
Re: Actual bandwidth of this Avago isolation amplifier
« Reply #1 on: July 01, 2011, 02:32:10 pm »
The gain plot is scaled for a reference of 8.2 V/V gain, not 1 V/V. therefore, 0 dB on the graph means an output voltage of 8.2V at 1V input for up to 70kHz or so.
« Last Edit: July 01, 2011, 02:52:37 pm by Alex »
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf