Other Parts Discussed in Thread: OPA4172, OPA4131, OPA4132
Dear Specialists,
My customer is simulating TL3474 and has a question.
I would be grateful if you could advise.
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When I simulated the pulse response with the P-Spice model of TL 3474, although the specified slew rate of TL 3474 is 10 V / us, it is only about 1.6 V / us.
I'd like to know the reason why, simulation model or something.
Simulation model was obtained from TI's WEB, could you please see below.
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I appreciate your great help in advance.
Best regards,
Shinichi
* TL3474 OPERATIONAL AMPLIFIER "MACROMODEL" SUBCIRCUIT * connections: non-inverting input * | inverting input * | | positive power supply * | | | negative power supply * | | | | output * | | | | | .subckt TL3474-X 1 2 3 4 5 * c1 11 12 4.5496E-12 c2 6 7 25.000E-12 cee 10 99 9.0000E-12 dc 5 53 dy de 54 5 dy dlp 90 91 dx dln 92 90 dx dp 4 3 dx egnd 99 0 poly(2) (3,0) (4,0) 0 .5 .5 fb 7 99 poly(5) vb vc ve vlp vln 0 6.3662E6 -1E3 1E3 6E6 -6E6 ga 6 0 11 12 942.48E-6 gcm 0 6 10 99 9.4248E-9 iee 3 10 dc 39.194E-6 hlim 90 0 vlim 1K q1 11 2 13 qx1 q2 12 1 14 qx2 r2 6 9 100.00E3 rc1 4 11 1.0610E3 rc2 4 12 1.0610E3 re1 13 10 .1 re2 14 10 .1 ree 10 99 5.1028E6 ro1 8 5 50 ro2 7 99 25 rp 3 4 109.87E3 vb 9 0 dc 0 vc 3 53 dc 1.8066 ve 54 4 dc 1.8066 vlim 7 8 dc 0 vlp 91 0 dc 28 vln 0 92 dc 28 .model dx D(Is=800.00E-18) .model dy D(Is=800.00E-18 Rs=1m Cjo=10p) .model qx1 PNP(Is=800.00E-18 Bf=201.03) .model qx2 PNP(Is=831.5365E-18 Bf=201.03) .ends *$ ****************************************************************************** [Disclaimer] Property of Texas Instruments Incorporated. Unauthorized reproduction and/or distribution is strictly prohibited. This product is protected under copyright law. Created 2002, (C) Copyright 2002, Texas Instruments Incorporated, All Rights Reserved UNLESS THERE IS A SIGNED, WRITTEN AGREEMENT TO THE CONTRARY, TEXAS INSTRUMENTS (TI) IS PROVIDING THE SPICE MODELS AND WITHOUT ANY WARRANTY, EXPRESSED OR IMPLIED. TI assumes no liability for: 1) the accuracy of the P-Spice models provided to your company; 2) the proper functioning of these P-Spice Models in your design or for any resulting applications; or 3) infringement of patents, copyrights or intellectual property rights resulting from your use of these P-Spice models. TI provides P-Spice Models as a service to our customers. You and your company shall not distribute, sell or give these models to anyone else without prior written permission from TI. TI reserves the right to make changes to our products or to discontinue any semiconductor product or service without notice, and advises our customers to obtain the latest version of relevant information to verify, before placing orders, that the information being relied on is current. Please be aware that your receipt and use of the P-Spice information provided shall serve as acceptance of these terms and conditions. If you do not accept these terms, you should return or destroy the P-Spice models and any other accompanying information immediately. ******************************************************************************