Path: ...!Xl.tags.giganews.com!local-2.nntp.ord.giganews.com!nntp.supernews.com!news.supernews.com.POSTED!not-for-mail NNTP-Posting-Date: Fri, 14 Jun 2024 14:47:44 +0000 From: john larkin Newsgroups: sci.electronics.design Subject: Re: Fast monostable with a transistpor array Date: Fri, 14 Jun 2024 07:47:45 -0700 Message-ID: References: User-Agent: ForteAgent/8.00.32.1272 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lines: 141 X-Trace: sv3-MAMp88V+qAuPh9FMzyxsCBoyekBROpoKe771QSqdy5nvF7cPcLchY1y81N1FkoiNCe1hlvXpg2a3YxL!pLwnpPWqoq2BgGdfMT0FBc+cyvR2Qp1fd0BY+pw+u24K74sVNog2YYkgBy2vySCdTLNhxEpKJS5t!TABn+g== X-Complaints-To: www.supernews.com/docs/abuse.html X-DMCA-Complaints-To: www.supernews.com/docs/dmca.html X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.40 Bytes: 5784 On Thu, 13 Jun 2024 23:25:37 -0400, "Edward Rawde" wrote: >"Bill Sloman" wrote in message news:v4f2nm$2augj$1@dont-email.me... >> One option John Larjkin doesn't seem to have explored is using Renesas HFA3096 five transistor array as basis for his mononstable >> and level shifter. >> >> It offers three 8GHz NPN parts and two 5.5GHz PNP parts in a single array. >> >> https://www.renesas.com/us/en/document/dst/hfa3046-hfa3096-hfa3127-hfa3128-datasheet?r=494216 >> > >I put the NPN model parameters into a circuit designed by yourself. >It's late now but I got as far as Time step too small. > That is neither fast nor a monostable. There's no reason to use many-GHz parts in micropower circuits. One reason is that the sim breaks. I do wish people would comment Spice sims properly, with author, date, and what-the-hell-this-actually-is-supposed-to-do. I wonder what happened to James. I think all the flaming here drove him away. James was fun. He always skis in short pants. >Version 4 >SHEET 1 2848 1304 >WIRE -592 528 -752 528 >WIRE -240 528 -592 528 >WIRE -64 528 -240 528 >WIRE 32 528 -64 528 >WIRE -64 544 -64 528 >WIRE 32 560 32 528 >WIRE -592 576 -592 528 >WIRE -240 592 -240 528 >WIRE -752 624 -752 528 >WIRE -64 656 -64 624 >WIRE -592 704 -592 656 >WIRE -464 704 -592 704 >WIRE -384 704 -464 704 >WIRE -240 704 -240 672 >WIRE -240 704 -320 704 >WIRE -128 704 -240 704 >WIRE -464 736 -464 704 >WIRE -240 736 -240 704 >WIRE -752 784 -752 704 >WIRE -64 784 -64 752 >WIRE 32 784 32 640 >WIRE 32 784 -64 784 >WIRE -592 832 -592 704 >WIRE 32 832 32 784 >WIRE -512 880 -528 880 >WIRE -464 880 -464 816 >WIRE -464 880 -512 880 >WIRE -448 880 -464 880 >WIRE -384 880 -320 704 >WIRE -320 880 -384 704 >WIRE -240 880 -240 816 >WIRE -240 880 -256 880 >WIRE -208 880 -240 880 >WIRE -32 880 -208 880 >WIRE -208 912 -208 880 >WIRE -512 928 -512 880 >WIRE -592 1008 -592 928 >WIRE -512 1008 -512 992 >WIRE -512 1008 -592 1008 >WIRE -208 1008 -208 976 >WIRE 32 1008 32 928 >WIRE 32 1008 -208 1008 >WIRE -592 1040 -592 1008 >WIRE 32 1040 32 1008 >FLAG 32 1040 0 >FLAG -592 1040 0 >FLAG -752 784 0 >SYMBOL RES -608 560 R0 >SYMATTR InstName R1 >SYMATTR Value 1Meg >SYMBOL res 16 544 R0 >SYMATTR InstName R10 >SYMATTR Value 2Meg >SYMBOL cap -384 864 R90 >WINDOW 0 0 32 VBottom 2 >WINDOW 3 32 32 VTop 2 >SYMATTR InstName C1 >SYMATTR Value 1.5p >SYMBOL cap -256 864 R90 >WINDOW 0 0 32 VBottom 2 >WINDOW 3 32 32 VTop 2 >SYMATTR InstName C2 >SYMATTR Value 1.5p >SYMBOL VOLTAGE -752 608 R0 >SYMATTR InstName V1 >SYMATTR Value 5 >SYMBOL npn -32 832 R0 >SYMATTR InstName Q1 >SYMATTR Value NUHFARRY >SYMBOL npn -528 832 M0 >SYMATTR InstName Q2 >SYMATTR Value NUHFARRY >SYMBOL res -256 720 R0 >SYMATTR InstName R3 >SYMATTR Value 4.7Meg >SYMBOL res -480 720 R0 >SYMATTR InstName R4 >SYMATTR Value 4.701Meg >SYMBOL cap -528 928 R0 >SYMATTR InstName C3 >SYMATTR Value 0.68p >SYMBOL cap -224 912 R0 >SYMATTR InstName C4 >SYMATTR Value 0.68p >SYMBOL npn -128 656 R0 >SYMATTR InstName Q10 >SYMATTR Value NUHFARRY >SYMBOL RES -256 576 R0 >WINDOW 3 30 76 Left 2 >SYMATTR Value 1Meg >SYMATTR InstName R2 >SYMBOL RES -48 640 R180 >WINDOW 0 36 76 Left 2 >WINDOW 3 36 40 Left 2 >SYMATTR InstName R11 >SYMATTR Value 1Meg >TEXT -768 1176 Left 0 !.tran 0 150u 50u startup >TEXT -776 1112 Left 0 ;This example schematic is supplied for informational/educational purposes only.\nJuly 7, 2008 by Bill Sloman >(but blame the Q10 output stage on James Arthur). >TEXT -480 1176 Left 0 !.model NUHFARRY NPN\n+ (IS = 1.840E - 16 XTI = 3.000E + 00 EG = 1.110E + 00 VAF = 7.200E + 01\n+ VAR = 4.500E >+ 00 BF = 1.036E + 02 ISE = 1.686E - 19 NE = 1.400E + 00\n+ IKF = 5.400E - 02 XTB = 0.000E + 00 BR = 1.000E + 01 ISC = 1.605E - >14\n+ NC = 1.800E + 00 IKR = 5.400E - 02 RC = 1.140E + 01 CJC = 3.980E - 13\n+ MJC = 2.400E - 01 VJC = 9.700E - 01 FC = 5.000E - 01 >CJE = 2.400E - 13\n+ MJE = 5.100E- 01 VJE = 8.690E - 01 TR = 4.000E - 09 TF = 10.51E - 12\n+ ITF = 3.500E - 02 XTF = 2.300E + 00 VTF >= 3.500E + 00 PTF = 0.000E + 00\n+ XCJC = 9.000E - 01 CJS = 1.150E - 13 VJS = 7.500E - 01 MJS = 0.000E + 00\n+ RE = 1.848E + 00 RB = >5.007E + 01 RBM = 1.974E + 00 KF = 0.000E + 00\n+ AF = 1.000E + 00) >TEXT 112 640 Left 0 ;Q2's collector is loaded by C2,\nlimiting risetime. Q10 isolates\nQ1's collector, allowing that node\nto charge >much more rapidly.\n \nQ10 doubles as a common-base\namplifier stage, further squaring up the\noutput from Q10's collector.\n \nThe >new output is taken from\nQ10's collector.\n \nJames Arthur, 9-Jul-2008 >