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- LT1078 FW Rect. ((Out=V(7); ref. ds circuit)
- *
- * Walt Jung
- * LT1078 single-supply full wave rectifier circuit
- * 06/28/90
- *
- * This circuit is an example of one which capitalizes on some
- * unique features of LTC single-supply op amps, as shown in a
- * data sheet application. The circuit in question is shown on
- * p 2-262 (middle) of the LTC 1990 data book.
- *
- * This circuit is a absolute value or full wave rectifier,
- * operating from a single +5V supply. In so doing, it handles
- * bipolar inputs of +/-3.5V up to 100Hz, delivering rectified 0 to
- * +3.5V output. It is interesting just how well the LTC
- * macromodel allows the simulation to mimic the real LT1078
- * devices. The model's output ranges for both the negative rail
- * (ground) range as well as the positive range are taxed, yet the
- * displayed result matches the data sheet performance quite well.
- * (Note that for a 3.5V peak output, amplifier stage one of the
- * simulation must swing to less than 1V from the positive rail.)
- *
- * In this demo, the Probe CMD file supplied calls up display parameters
- * which show dual plots of the input (bottom) and the rectified
- * output (top).
- *
- .OPT ACCT LIST NODE OPTS NOPAGE
- .WIDTH OUT=80
- .TEMP 27
- VSIN1 100 0 sin(0 3.5V 100hertz 0)
- .TRAN 1u 10000u
- .PROBE
- R1 100 2 200e3
- R2 2 5 200e3
- D1 1 5 dm2
- R3 7 6 1e-3 ; jumper
- R4 3 0 1e-3 ; jumper
- VCC 52 0 5V
- XU1 3 2 52 0 1 LT1078
- XU2 5 6 52 0 7 LT1078
- *
- .MODEL DM2 D (IS=8.000E-16)
- .SUBCKT LT1078 3 2 7 4 6
- RC1 4 80 2.653E+04
- RC2 4 90 2.653E+04
- Q1 80 102 10 QM1
- Q2 90 103 11 QM2
- RB1 2 102 6.000E+02
- RB2 3 103 6.000E+02
- DCM1 105 102 DM2
- DCM2 105 103 DM2
- VCMC 105 4 4.000E-01
- C1 80 90 8.660E-12
- RE1 10 12 4.958E+03
- RE2 11 12 4.958E+03
- IEE 7 12 2.412E-06
- RE 12 0 8.292E+07
- CE 12 0 1.579E-12
- GCM 0 8 12 0 1.501E-10
- GA 8 0 80 90 3.770E-05
- R2 8 0 1.000E+05
- C2 1 8 3.000E-11
- GB 1 0 8 0 2.449E+02
- RO1 1 110 1.000E+02
- RO2A 1 0 1.083E+03
- RO2B 6 110 8.170E+02
- EC 17 0 110 0 1
- D1 1 17 DM1
- D2 17 1 DM1
- D3 110 13 DM2
- D4 14 110 DM2
- D5 6 110 DM2
- D6 110 6 DM2
- VC 7 13 1.490E+00
- VE 14 4 7.911E-01
- IP 7 4 4.259E-05
- DSUB 4 7 DM2
- .MODEL QM1 PNP (IS=8.000E-16 BF=1.992E+02)
- .MODEL QM2 PNP (IS=8.012E-16 BF=2.008E+02)
- .MODEL DM1 D (IS=3.718E-24)
- .MODEL DM2 D (IS=8.000E-16)
- .ENDS LT1078
- **
- * (C) COPYRIGHT LINEAR TECHNOLOGY CORPORATION 1990
- * All rights reserved.
- *
- * Linear Technology Corporation hereby grants the users of this
- * macromodel a non-exclusive, nontransferrable license to use this
- * macromodel under the following conditions:
- *
- * The user agrees that this macromodel is licensed from Linear
- * Technology and agrees that the macromodel may be used, loaned,
- * given away or included in other model libraries as long as this
- * notice and the model in its entirety and unchanged is included.
- * No right to make derivative works or modifications to the
- * macromodel is granted hereby. All such rights are reserved.
- *
- * This model is provided as is. Linear Technology makes no
- * warranty, either expressed or implied about the suitability or
- * fitness of this model for any particular purpose. In no event
- * will Linear Technology be liable for special, collateral,
- * incidental or consequential damages in connection with or arising
- * out of the use of this macromodel. It should be remembered that
- * models are a simplification of the actual circuit.
- *
- * Linear Technology reserves the right to change these macromodels
- * without prior notice. Contact Linear Technology at 1630 McCarthy
- * Blvd., Milpitas, CA, 95035-7487 or telephone 408/432-1900 for
- * datasheets on the actual amplifiers or the latest macromodels.
- *
- * ----------------------------------------------------------------------- *
- .END
-
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