ISL28127_1012 Datasheet, PDF (15/26 Pages) Intersil Corporation – Precision Single and Dual Low Noise Operational Amplifiers

ISL28127, ISL28227
ISL28127 and ISL28227 SPICE Model
Figure 40 shows the SPICE model schematic and Figure 41 shows
the net list for the ISL28127 and ISL28227 SPICE model. The
model is a simplified version of the actual device and simulates
important AC and DC parameters. AC parameters incorporated
into the model are: 1/f and flatband noise, Slew Rate, CMRR, Gain
and Phase. The DC parameters are VOS, IOS, total supply current
and output voltage swing. The model does not model input bias
current. The model uses typical parameters given in the “Electrical
Specifications” Table beginning on page 4. The AVOL is adjusted
for 128dB with the dominate pole at 5Hz. The CMRR is set higher
than the “Electrical Specifications” Table to better match design
simulations (150dB, f = 50Hz). The input stage models the actual
device to present an accurate AC representation. The model is
configured for ambient temperature of +25°C.
Figures 42 through 57 show the characterization vs simulation
results for the Noise Voltage, Closed Loop Gain vs Frequency,
Closed Loop Gain vs Rf/Rg, Closed Loop Gain vs R_L, Closed Loop
Gain vs C_L, Large Signal 10V Step Response, Open Loop Gain
Phase and Simulated CMRR vs Frequency.
LICENSE STATEMENT
The information in this SPICE model is protected under the
United States copyright laws. Intersil Corporation hereby grants
users of this macro-model hereto referred to as “Licensee”, a
nonexclusive, nontransferable licence to use this model as long
as the Licensee abides by the terms of this agreement. Before
using this macro-model, the Licensee should read this license. If
the Licensee does not accept these terms, permission to use the
model is not granted.
The Licensee may not sell, loan, rent, or license the macro-
model, in whole, in part, or in modified form, to anyone outside
the Licensee’s company. The Licensee may modify the
macro-model to suit his/her specific applications, and the
Licensee may make copies of this macro-model for use within
their company only.
This macro-model is provided “AS IS, WHERE IS, AND WITH NO
WARRANTY OF ANY KIND EITHER EXPRESSED OR IMPLIED,
INCLUDING BUY NOT LIMITED TO ANY IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.”
In no event will Intersil be liable for special, collateral, incidental,
or consequential damages in connection with or arising out of
the use of this macro-model. Intersil reserves the right to make
changes to the product and the macro-model without prior
notice.
15
FN6633.6
December 16, 2010