Thank you Wolfgang, I have tried Hittite, but they have only single ended distribution amps. I know similar ICs but all specs are not met at once. Inphi : 1012VA --- DC-10GHz Anritsu : SG1G23P---DC-14GHz, 24dB Gain, Limiting Amp. GigOptix : iT3042D---DC-28GHz, 28dB Gain, Limiting Amp. Triquint : TGA4830----DC-45GHz, 13dB Gain, Single Ended Most of high speed wide band defferential amplifiers are limiting amplifier. And the others are single ended. Anyway, I'll continue to try more. Thank you again, Kiyoshi (2012/09/04 16:02), Wolfgang.Maichen@xxxxxxxxxxxx wrote: > Try Hittite, http://www.hittite.com, they have a large selection of wideband > amplifiers and gain blocks. Not sure how much of them are differential though. > > Centellax www.centellax.com would be another place to look. > > E.g. http://www.centellax.com/products/microwave/modules/UA0L30VM.shtml > > Regards, > > Wolfgang > > > -----Original Message----- > From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On > Behalf Of steve weir > Sent: Tuesday, September 04, 2012 7:25 AM > To: si-list@xxxxxxxxxxxxx > Subject: [SI-LIST] Re: Does anyone know a linear differential amp with > DC-30GHz bandwidth? > > Try SHF in Germany. > > > Steve > On 9/3/2012 8:59 PM, sone@xxxxxxxxxxx wrote: >> Hi, >> >> I'm looking for differential linear amp with spec bellow, >> >> Type: Linear Amp >> Bandwidth: DC - around 30GHz >> Input: Differential >> Output: Single ended or Differential >> Gain: Higher than 6dB and lower than 12dB >> Return Loss: -15dB or less on input and output >> Output 1dB compression: +7.5dBm >> >> DC characteristics are not important. The lowest frequency is 2kHz. >> If the amp has higher gain, I can use with attenuator unless S/N and >> jitter are degraded. >> >> I would appreciate apt and prompt solutions. >> Thank you. >> >> >> Kiyoshi Sone >> >> >> >> >> >> ------------------------------------------------------------------ >> To unsubscribe from si-list: >> si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field >> >> or to administer your membership from a web page, go to: >> //www.freelists.org/webpage/si-list >> >> For help: >> si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field >> >> >> List forum is accessible at: >> http://tech.groups.yahoo.com/group/si-list >> >> List archives are viewable at: >> //www.freelists.org/archives/si-list >> >> Old (prior to June 6, 2001) list archives are viewable at: >> http://www.qsl.net/wb6tpu >> >> >> > -- ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List forum is accessible at: http://tech.groups.yahoo.com/group/si-list List archives are viewable at: //www.freelists.org/archives/si-list Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu