Bias Circuit

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P4.8 NMOS <strong>Circuit</strong> with Body Effect Components Use RS from NMOSgamma.vi. Procedure • Set RS. Install SPICE parameters from NMOSparam.vi and NMOSgamma.vi. Run NMOS_Cir.vi to obtain ID versus VGS with a sweep of VSS. The iteration solution obtained in SPICEgamma.vi (Diagram below) is compared in the graph of NMOS_Cir.vi. Adjust VSSinit to obtain IDmin of about 50µA. Re-adjust Gamma for best fit. Then save a data file with your data file name. The data file must be in the folder with the Mathcad file. The file name must have a *.prn extension.
• A file can be obtained from the graph of the defaulted and saved VI using XY1toDataFile.vi. The VI XY1toDataFile.vi is located in \\LabVIEW 6\User.lib\Dat_Files\Dat.llb. • Note that XY1toDataFile.vi is different from XYtoDataFile2.vi, as used to obtain a data file in the Diagram of NMOS_Cir.vi. The Control Graph of XYtoDataFile2.vi accepts single plots while XY1toDataFile.vi is for graphs with two Y functions (with only one Y function in the data file). For convenience, a copy of XY1toDataFile.vi, GetDataFile.vi, is included in the Project04.llb. For clarification, XY1Y2toDataFile.vi accepts graph data with two Y functions and includes both in the data file.
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Copyright Library of Congress Catal
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National Improvements | Virtual Ins
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formulations, the results from Math
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Hardware and Software Requirements
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Chan0_out Pin 21 Chan0_in Pin 68 Gn
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LabVIEW VI Libraries and Project an
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1.1 Resistor Voltage Divider and MO
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1.3 Frequency Response of the Ampli
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At f = flo, . This, by definition,
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1.5 Exercises and Projects Project
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2.1 BJT and MOSFET Schematic Symbol
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2.2 Fundamentals of Signal Amplific
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2.3 Basic NMOS Common-Source Amplif
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Using (2.4), (2.5), (2.9), and (2.1
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Unit 3. Characterization of MOS Tra
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In electronic circuit applications,
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The output-characteristic equation
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Equation 3.11 From the data measure
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The input circuit loop equation (Fi
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which leads to the result (3.5), re
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Unit 4. Signal Conductance Paramete
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4.2 Transistor Variable Incremental
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4.3 Transconductance Parameter The
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4.4 Body-Effect Transconductance Pa
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4.5 Output Conductance Parameter Th
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With a 1 - V drop across RS and a 5
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By the nature of the load-line func
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Unit 5. Common-Source Amplifier Sta
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5.2 Amplifier Voltage Gain This dc
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etween the drain and source of the
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5.3 Linearity of the Gain of the Co
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where av Vds/Vgs and where the appr
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is attached directly to the gate. B
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5.5 Design of a Basic Common-Source
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= VGSo - Vtno at the high and low e
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RG can be selected somewhat arbitra
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6.1 Grounded-Source Amplifier: Coup
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and Equation 6.6 Note that the "RC"
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6.4 Load Coupling Capacitor The com
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6.5 Summary of Equations MOSFET cou
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Unit 7. MOSFET Source-Follower Buff
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7.2 Source-Follower Voltage Transfe
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7.3 Body Effect and Source-Follower
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7.4 Summary of Equations Threshold
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Unit 8. MOSFET Differential Amplifi
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8.2 DC Imbalances In a real transis
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8.3 Signal Voltage Gain of the Idea
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8.4 Effect of the Bias Resistor on
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8.5 Differential Voltage Gain Suppo
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8.7 Voltage Gains Including Transis
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8.7.2 Common-Gate Amplifier Stage T
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with RD1 = RD2 and gm1 = gm2. In th
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It follows that the gain for the in
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8.9 Amplifier Gain with Differentia
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8.11 Summary of Equations Rs = Ris2
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9.1 Basic Current Source An example
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9.2 Current Source with Source Dege
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If the magnitude of the voltage acr
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Any slight possible difference in
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Unit 10. Common-Source Amplifier wi
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10.2 Signal Voltage Gain The expres
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10.3 Summary of Equations Output dr
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Unit 11. Operational Amplifiers wit
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11.1.1 Voltage Gain of the Noninver
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This expression can be manipulated
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11.3 Operational Amplifier Offset I
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where the approximation usually app
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where Avo is the amplifier gain at
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12.1 Operational Amplifier Integrat
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This demonstrates that for the circ
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with a steady-state value of Vop. A
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Equation 12.25 A good estimate come
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13.1 Combining NMOS and PMOS Circui
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13.3 Stabilization of Signal Gain a
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An estimate of the new output volta
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This produces (9.9) from Ro = Vo/Io
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Equation 13.13 where 13.12 has been
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The open-loop transconductance is G
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Unit 14. Development of a Basic CMO
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14.2 Current-Source Output Resistan
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14.3 Current-Source Load for the Co
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14.4 Current-Source Load for the Di
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the node (exclusive of the separate
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14.5 Two-Stage Amplifier with Curre
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14.6 Output Buffer Stage It is evid
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Suppose that ID6 = 400 µA, W6 = 50
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Av and Ro are calculated once, usin
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Since the source follower of M1 has
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14.9 Summary of Equations CMRR = 1
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Unit A. Communicating with the Circ
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Place AI Acquire Waveform.vi in the
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Click from the Front Panel or Diagr
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Now go to the Diagram (under Menu W
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To complete connections to the term
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Now use the Edit Text Tool to edit
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on the left in the diagram . The Wh
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Figure A.15. Frame of Sequence Stru
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The transition regions are nonabrup
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during the oscilloscope measurement
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Unit B. Characterization of the Bip
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junction diodes, the current is lar
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common to the input and output and
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B.2 Base-Width Dependence on Juncti
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Figure B.8. Diodelike characteristi
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The minus sign comes from having as
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Figure B.10. Circuit for measuring
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B.5 Output Characteristics of BJT i
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After measuring the output characte
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B.6 SPICE Solution for IC versus VC
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B.7 Collector-Emitter Voltage and C
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B.8 DC as a Function of Collector C
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B.10 Summary of Equations Common-em
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Unit C. Common-Emitter Amplifier St
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The equation set above has three un
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The output-resistance parameter, ro
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of βDC as possible. Signal paramet
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Equation C.17 We note that the magn
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C.4 Accuracy of Transistor Gain Mea
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C.5 Effect of Finite Slope of the T
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It follows that for this case, f3dB
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C.7 Common-Emitter Amplifier with A
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Equation C.41 where IC IC(VCE), tha
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Applied voltage Vo sums up to Equat
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C.7.3 DC (Bias) of the NPN - PNP Am
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where Equation C.58 and Equation C.
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Equation C.67 The result is signifi
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The following form of the result pr
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This is equivalent to a unity-gain
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C.11 Summary of Circuit Equations B
Page 274 and 275: C.12 Exercises and Projects Project
Page 276 and 277: P1.1 Resistor Voltage-Divider Measu
Page 278 and 279: • Place AO Update Channel.vi in F
Page 280 and 281: • (Optional) To install the circu
Page 282 and 283: Procedure • Set your value of RG2
Page 284 and 285: • In the Diagram, we will add Get
Page 286 and 287: P1.4 Resistor Voltage Divider with
Page 288 and 289: • Now move the capacitor C2 = C1
Page 290 and 291: P2.1 NMOS Common-Source Circuit wit
Page 292 and 293: • In the Diagram (below), place,
Page 295 and 296: P2.2 NMOS Common-Source Amplifier w
Page 297 and 298: P2.3 Amplifier with Signal and Gain
Page 299 and 300: • Connect to FG1Chan.vi, the vari
Page 301 and 302: P3.1 SPICE Parameters and Pin Diagr
Page 303 and 304: P3.3 PMOS Transistor Use pins 6 (ga
Page 305 and 306: Procedure • Run PMOSlinear.vi and
Page 307 and 308: Procedure • Run PMOSparsub.vi wit
Page 309 and 310: Procedure • Run PMOSparam.vi to r
Page 311 and 312: Active Region Procedure • Install
Page 313 and 314: Laboratory Project 4. Characterizat
Page 315 and 316: P4.2 NMOS Transistor Use CD4007 pin
Page 317 and 318: P4.4 NMOS Parameters from the Trans
Page 319 and 320: P4.5 NMOS Lambda from the Transfer
Page 321 and 322: P4.6 NMOS Gamma SubVI Components No
Page 323: • Set RS. With NMOSgamsub.vi open
Page 327 and 328: P5.1 SPICE Equations and Pin Diagra
Page 330 and 331: P5.3 Amplifier Gain at One Bias Cur
Page 332 and 333: P5.4 Amplifier Gain versus Bias Cur
Page 334 and 335: Laboratory Project 6. PMOS Common-
Page 336 and 337: P6.2 SPICE PMOS and Circuit Equatio
Page 339 and 340: P6.4 Amplifier Gain LabVIEW Computa
Page 341 and 342: P6.5 Amplifier Frequency Response P
Page 343 and 344: P7.1 Chip Diagram and SPICE Equatio
Page 346 and 347: P7.3 Amplifier Gain at Optimum Bias
Page 348 and 349: P7.4 Optimum Bias Stability Test
Page 350 and 351: P7.5 Amplifier Frequency Response P
Page 352 and 353: Laboratory Project 8. NMOS Source-
Page 354: P8.2 Source-Follower DC Evaluation
Page 357 and 358: available for the next VI. It is us
Page 359 and 360: Laboratory Project 9. MOSFET Differ
Page 361 and 362: P9.2 DC Evaluation of the Single-Po
Page 363 and 364: P9.3 Determination of the PMOS Para
Page 365 and 366: Gains will be obtained from the gra
Page 367 and 368: • Run SweepSim.vi to obtain the d
Page 369 and 370: Laboratory Project 10. Current Mirr
Page 371 and 372: P10.2 Evaluation of the Current-Sou
Page 373 and 374: P10.4 Evaluation of the Bias Setup
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Laboratory Project 11. Operational
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P11.2 Bias Circuit Setup 1 Offset N
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P11.3 Opamp Offset Voltage Componen
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P11.4 Evaluation of the Bias Balanc
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VOH • Reset the Chan0_out Range,
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P11.6 Evaluation of the Gain with S
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P11.7 Determination of the Opamp Fr
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Laboratory Project 12. Operational
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P12.2 Opamp Integrator Components R
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Procedure • Turn off the power su
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Laboratory Project A. Communicating
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PA.2 Sending and Receiving Voltages
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Bipolar TABLE PA.2 0 to +5V 1.22 mV
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PA.5 Observing the Oscilloscope Out
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of the DAC. The steps are 2.44 mV f
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• The example here illustrates th
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Laboratory Project B. Characterizat
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PB.2 SPICE Equations SPICE Equation
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parameters nF and IS. • Connect C
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PB.4 DC versus the Collector Curren
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• Now open VI, IC_VCE.vi. Set the
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Laboratory Project C1. NPN Common-
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PC.2 DC Circuit Setup and Parameter
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PC.3 Amplifier Gain at One Bias Cur
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PC.4 Amplifier Gain versus Bias Cur
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• Run FreqResp.vi. Verify that in
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PC.6 SPICE Equations and Pin Diagra
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• Determine the value of VAF spec
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• Set the Run Mode switch to Set
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• Now reset VCC(init) and VBB(ini
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