-5
f s
n 24
32 0

32 0

32 0

32 0

32 0

32 0

32 0

32 0

32 0

32 0

32 0

32 0

32 0

32 0

32 0

32 0

32 0

32 0

32 0

32 0

32 0

32 0

32 0

32 0

s 0
w 0
p 0
l 21
3301 3278 44 Lesson 5  Behind the Scenes - Part II
3277 3313 43 When to adjust simulation constants:
3300 3283 36 The Transconductance Amplifier
3279 3298 76 Both wide range and normal amplifiers are modeled (left-right).
3279 3300 68 Transconductance function modeled with variable offsets.
3359 3297 15 Touch the bar
3359 3299 14 in CNFG mode
3359 3301 15 to adjust the
3361 3303 12 simulation
3361 3305 10 constants
3279 3302 55 Behavior outside of subthreshold NOT modeled.
3279 3304 72 Unmodeled regions indicated by a red warning light on gate.
3279 3316 66 1) Voltages are constrained to within -2V to 7V. If you
3283 3318 64 needs more headroom, adjust the appropriate constants.
3279 3321 64 2) Running a high-speed waveform in "Relaxed" mode may
3283 3323 63 produce "aliasing" because of Nyquist limit problems.
3283 3325 55 Use Exact Mode or adjust the Maximum Timestep.
3279 3328 66 3) If your simulation is not accurate enough, decrease 
3283 3330 60 Maximum Voltage Change per Timestep appropriately.
3358 3336 14 John & Dave.
3353 3332 15 Happy Trails,
b 3
3278 3282 3357 3307
3351 3329 3374 3341
3352 3330 3373 3340
g 8
ARROW2
3365 3311 2 3 0 0 0


NUMBERS
3362 3319 0 4 0 0 16

U5
U0.1
U7
U-2
U1E-4
U1E-20
U1E-40
U1E-6
U1E-40
U1E-9
U2
I2
I30
R10
U0.1
U1E-14
 TRUE
 TRUE

WRAMP
3287 3291 4 8 0 0 11
4 3 2 1
U0
U1
U1
U0.04
U5E-17
U0.9
U50
U0.04
U1E-14
U1E-14
U1E-14
-1.00000E+06
-1.00000E+06
 1.00000E-14
-1.00000E+06
-1.00000E+06
 1.00000E-14
-1.00000E+06
-1.00000E+06
 1.00000E-14
-1.00000E+06
-1.00000E+06
 1.00000E-14

WRAMP
3298 3291 4 8 0 0 11
8 7 6 5
U0
U1
U1
U0.04
U5E-17
U0.9
U50
U0.04
U1E-14
U1E-14
U1E-14
-1.00000E+06
-1.00000E+06
 1.00000E-14
-1.00000E+06
-1.00000E+06
 1.00000E-14
-1.00000E+06
-1.00000E+06
 1.00000E-14
-1.00000E+06
-1.00000E+06
 1.00000E-14

WRAMP
3310 3291 4 8 0 0 11
12 11 10 9
U0
U1
U1
U0.04
U5E-17
U0.9
U50
U0.04
U1E-14
U1E-14
U1E-14
-1.00000E+06
-1.00000E+06
 1.00000E-14
-1.00000E+06
-1.00000E+06
 1.00000E-14
-1.00000E+06
-1.00000E+06
 1.00000E-14
-1.00000E+06
-1.00000E+06
 1.00000E-14

OPAMP
3323 3291 0 7 0 0 11
18 17 16 15
U0
U1
U1
U0.04
U5E-17
U0.9
U50
U0.04
U1E-14
U1E-14
U1E-14
-1.00000E+06
-1.00000E+06
 1.00000E-14
-1.00000E+06
-1.00000E+06
 1.00000E-14
-1.00000E+06
-1.00000E+06
 1.00000E-14
-1.00000E+06
-1.00000E+06
 1.00000E-14

OPAMP
3334 3291 0 6 0 0 11
21 20 19 14
U0
U1
U1
U0.04
U5E-17
U0.9
U50
U0.04
U1E-14
U1E-14
U1E-14
-1.00000E+06
-1.00000E+06
 1.00000E-14
-1.00000E+06
-1.00000E+06
 1.00000E-14
-1.00000E+06
-1.00000E+06
 1.00000E-14
-1.00000E+06
-1.00000E+06
 1.00000E-14

OPAMP
3345 3291 0 5 0 0 11
24 23 22 13
U0
U1
U1
U0.04
U5E-17
U0.9
U50
U0.04
U1E-14
U1E-14
U1E-14
-1.00000E+06
-1.00000E+06
 1.00000E-14
-1.00000E+06
-1.00000E+06
 1.00000E-14
-1.00000E+06
-1.00000E+06
 1.00000E-14
-1.00000E+06
-1.00000E+06
 1.00000E-14

h 0
.