Bias Circuit

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PC.1 SPICE Equations and Pin Diagram SPICE Equation Description Common Emitter Amplifier with Rc (bias) Load avb = –gmRC gm = Ic/VT C.17 Base-to-collector gain. C.22 Circuit gain with large source resistor. C.28 Precision base-to-collector gain. C.15 Transistor input resistance. C.40 Transistor output resistance.
PC.2 DC Circuit Setup and Parameter Determination Components Use ProjectC1.mcd for calculations. Verify bias of Circuit C3 (i.e.VCC < 10 V). Procedure • Type in RC. Run SetVCE.vi while re-adjusting VBB to verify that 0.1 mA
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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
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C.12 Exercises and Projects Project
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P1.1 Resistor Voltage-Divider Measu
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• Place AO Update Channel.vi in F
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• (Optional) To install the circu
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Procedure • Set your value of RG2
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• In the Diagram, we will add Get
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P1.4 Resistor Voltage Divider with
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• Now move the capacitor C2 = C1
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P2.1 NMOS Common-Source Circuit wit
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• In the Diagram (below), place,
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P2.2 NMOS Common-Source Amplifier w
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P2.3 Amplifier with Signal and Gain
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• Connect to FG1Chan.vi, the vari
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P3.1 SPICE Parameters and Pin Diagr
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P3.3 PMOS Transistor Use pins 6 (ga
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Procedure • Run PMOSlinear.vi and
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Procedure • Run PMOSparsub.vi wit
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Procedure • Run PMOSparam.vi to r
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Active Region Procedure • Install
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Laboratory Project 4. Characterizat
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P4.2 NMOS Transistor Use CD4007 pin
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P4.4 NMOS Parameters from the Trans
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P4.5 NMOS Lambda from the Transfer
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P4.6 NMOS Gamma SubVI Components No
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• Set RS. With NMOSgamsub.vi open
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• A file can be obtained from the
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P5.1 SPICE Equations and Pin Diagra
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P5.3 Amplifier Gain at One Bias Cur
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P5.4 Amplifier Gain versus Bias Cur
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Laboratory Project 6. PMOS Common-
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P6.2 SPICE PMOS and Circuit Equatio
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P6.4 Amplifier Gain LabVIEW Computa
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P6.5 Amplifier Frequency Response P
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P7.1 Chip Diagram and SPICE Equatio
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P7.3 Amplifier Gain at Optimum Bias
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P7.4 Optimum Bias Stability Test
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P7.5 Amplifier Frequency Response P
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Laboratory Project 8. NMOS Source-
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P8.2 Source-Follower DC Evaluation
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available for the next VI. It is us
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Laboratory Project 9. MOSFET Differ
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P9.2 DC Evaluation of the Single-Po
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P9.3 Determination of the PMOS Para
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Gains will be obtained from the gra
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• 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
Page 376 and 377: Laboratory Project 11. Operational
Page 378 and 379: P11.2 Bias Circuit Setup 1 Offset N
Page 380 and 381: P11.3 Opamp Offset Voltage Componen
Page 382 and 383: P11.4 Evaluation of the Bias Balanc
Page 384 and 385: VOH • Reset the Chan0_out Range,
Page 386 and 387: P11.6 Evaluation of the Gain with S
Page 388 and 389: P11.7 Determination of the Opamp Fr
Page 390 and 391: Laboratory Project 12. Operational
Page 392 and 393: P12.2 Opamp Integrator Components R
Page 394 and 395: Procedure • Turn off the power su
Page 396 and 397: Laboratory Project A. Communicating
Page 398: PA.2 Sending and Receiving Voltages
Page 401 and 402: Bipolar TABLE PA.2 0 to +5V 1.22 mV
Page 403 and 404: PA.5 Observing the Oscilloscope Out
Page 405 and 406: of the DAC. The steps are 2.44 mV f
Page 407 and 408: • The example here illustrates th
Page 409 and 410: Laboratory Project B. Characterizat
Page 411 and 412: PB.2 SPICE Equations SPICE Equation
Page 413 and 414: parameters nF and IS. • Connect C
Page 415 and 416: PB.4 DC versus the Collector Curren
Page 417 and 418: • Now open VI, IC_VCE.vi. Set the
Page 419: Laboratory Project C1. NPN Common-
Page 423 and 424: PC.3 Amplifier Gain at One Bias Cur
Page 425 and 426: PC.4 Amplifier Gain versus Bias Cur
Page 427 and 428: • Run FreqResp.vi. Verify that in
Page 429 and 430: PC.6 SPICE Equations and Pin Diagra
Page 431 and 432: • Determine the value of VAF spec
Page 433 and 434: • Set the Run Mode switch to Set
Page 435: • Now reset VCC(init) and VBB(ini
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Bias Circuit

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