近期试着用hspice设计一个理想的8-BITADC模型,仿真结果显示如下:大概就是没有该开关模型定义?请问该怎么解决呢?
****** HSPICE -- A-2008.03-SP1 32-BIT (May 26 2008) winnt ******
Copyright (C) 2008 Synopsys, Inc. All Rights Reserved.
Unpublished-rights reserved under US copyright laws.
This program is protected by law and is subject to the
terms and conditions of the license agreement found in:
C:\synopsys\Hspice_A-2008.03-SP1\license.warn
Use of this program is your acceptance to be bound by this
license agreement. HSPICE is the trademark of Synopsys, Inc.
Input File: c:\users\tao\desktop\8bit ideal adc.sp
Init: read install configuration file: C:\synopsys\Hspice_A-2008.03-SP1\meta.cfg
Init: hspice initialization file: C:\synopsys\Hspice_A-2008.03-SP1\hspice.ini
*定义输出处理
.option post accurate probe
.probe v(vdd) v(vref+) v(vref-) v(vin) v(b7) v(b6)
+v(b5) v(b4) v(b3) v(b2) v(b1) v(b0) v(clock)
*定义控制源
vvdd vdd 0 dc 1.5
vvref+ vref+ 0 dc 1.5
vvref- vref- 0 dc 0.0
vclock clock 0 dc 0 pulse(0 1.5 0 0 0 4.9n 10n)
vvin vin 0 dc 0 sin(0.75 0.75 8meg)
.tran 0.1n 3.0us
****** Circuit Statistics ******
# nodes = 0 # elements = 5
# resistors = 0 # capacitors = 0 # inductors = 0
# mutual_inds = 0 # vccs = 0 # vcvs = 0
# cccs = 0 # ccvs = 0 # volt_srcs = 5
# curr_srcs = 0 # diodes = 0 # bjts = 0
# jfets = 0 # mosfets = 0 # U elements = 0
# T elements = 0 # W elements = 0 # B elements = 0
# S elements = 0 # P elements = 0 # va device = 0
****** Runtime Statistics (seconds) ******
analysis time # points tot. iter conv.iter
op point 0.00 1 0
readin 0.01
errchk 0.00
setup 0.00
output 0.00
total memory used 148 kbytes
total cpu time 0.01 seconds
total elapsed time 1 seconds
job started at 18:59:17 04/15/2015
job ended at 18:59:17 04/15/2015