Design of ampli fi er con fi guration + + + + Voltage transfer independent of source and load impedance. - - - - Ampli fi er concept for establishing a nonzero value for A only Best performance with nonenergic feedback Wide-band transformer expensive + + Passive feedback con fi guration Feedback network increases noise - - and power losses of controller 30 (c) 2020 A.J.M. Montagne
Design of ampli fi er con fi guration + + + + Voltage transfer independent of source and load impedance. - - - - Ampli fi er concept for establishing Nonzero value for A: a nonzero value for A only Best performance with nonenergic feedback Wide-band transformer expensive + + Passive feedback con fi guration Feedback network increases noise - - and power losses of controller 31 (c) 2020 A.J.M. Montagne
Design of ampli fi er con fi guration + + + + Voltage transfer independent of source and load impedance. - - - - Ampli fi er concept for establishing Nonzero value for A: a nonzero value for A only Parallel sensing Best performance with nonenergic feedback Wide-band transformer expensive + + Passive feedback con fi guration Feedback network increases noise - - and power losses of controller 32 (c) 2020 A.J.M. Montagne
Design of ampli fi er con fi guration + + + + Voltage transfer independent of source and load impedance. - - - - Ampli fi er concept for establishing Nonzero value for A: a nonzero value for A only Parallel sensing Best performance with nonenergic Zero output impedance feedback Wide-band transformer expensive + + Passive feedback con fi guration Feedback network increases noise - - and power losses of controller 33 (c) 2020 A.J.M. Montagne
Design of ampli fi er con fi guration + + + + Voltage transfer independent of source and load impedance. - - - - Ampli fi er concept for establishing Nonzero value for A: a nonzero value for A only Parallel sensing Best performance with nonenergic Zero output impedance feedback Series comparison Wide-band transformer expensive + + Passive feedback con fi guration Feedback network increases noise - - and power losses of controller 34 (c) 2020 A.J.M. Montagne
Design of ampli fi er con fi guration + + + + Voltage transfer independent of source and load impedance. - - - - Ampli fi er concept for establishing Nonzero value for A: a nonzero value for A only Parallel sensing Best performance with nonenergic Zero output impedance feedback Series comparison Wide-band transformer expensive In fi nite input impedance + + Passive feedback con fi guration Feedback network increases noise - - and power losses of controller 35 (c) 2020 A.J.M. Montagne
Design of ampli fi er con fi guration + + + + Voltage transfer independent of source and load impedance. - - - - Ampli fi er concept for establishing Nonzero value for A: a nonzero value for A only Parallel sensing Best performance with nonenergic Zero output impedance feedback Series comparison Wide-band transformer expensive In fi nite input impedance + + Passive feedback con fi guration Feedback network increases noise - - and power losses of controller 36 (c) 2020 A.J.M. Montagne
Noise design 37 (c) 2020 A.J.M. Montagne
Noise design Find and solve design equations for elements that contribute to the noise 38 (c) 2020 A.J.M. Montagne
Noise design Find and solve design equations for elements that contribute to the noise 1. Feedback resistors 39 (c) 2020 A.J.M. Montagne
Noise design Find and solve design equations for elements that contribute to the noise 1. Feedback resistors 2. Controller equivalent intput noise sources 40 (c) 2020 A.J.M. Montagne
Noise design Find and solve design equations for elements that contribute to the noise 1. Feedback resistors 2. Controller equivalent intput noise sources Noise model: 41 (c) 2020 A.J.M. Montagne
Noise design Find and solve design equations for elements that contribute to the noise 1. Feedback resistors 2. Controller equivalent intput noise sources Noise model: - + + - 42 (c) 2020 A.J.M. Montagne
Noise design Find and solve design equations for elements that contribute to the noise 1. Feedback resistors 2. Controller equivalent intput noise sources Noise model: - + + - 43 (c) 2020 A.J.M. Montagne
Noise design Find and solve design equations for elements that contribute to the noise 1. Feedback resistors 2. Controller equivalent intput noise sources Noise model: - Noise fi gure of 3dB: + + - 44 (c) 2020 A.J.M. Montagne
Noise design Find and solve design equations for elements that contribute to the noise 1. Feedback resistors 2. Controller equivalent intput noise sources Noise model: - Noise fi gure of 3dB: + + - 45 (c) 2020 A.J.M. Montagne
Noise design Find and solve design equations for elements that contribute to the noise 1. Feedback resistors 2. Controller equivalent intput noise sources Noise model: - Noise fi gure of 3dB: + + Show stopper values: - 46 (c) 2020 A.J.M. Montagne
Noise design Find and solve design equations for elements that contribute to the noise 1. Feedback resistors 2. Controller equivalent intput noise sources Noise model: - Noise fi gure of 3dB: + + Show stopper values: - 47 (c) 2020 A.J.M. Montagne
Noise design Find and solve design equations for elements that contribute to the noise 1. Feedback resistors 2. Controller equivalent intput noise sources Noise model: - Noise fi gure of 3dB: + + Show stopper values: - 48 (c) 2020 A.J.M. Montagne
Noise design Find and solve design equations for elements that contribute to the noise 1. Feedback resistors 2. Controller equivalent intput noise sources Noise model: - Noise fi gure of 3dB: + + Show stopper values: - 49 (c) 2020 A.J.M. Montagne
Noise design Find and solve design equations for elements that contribute to the noise 1. Feedback resistors 2. Controller equivalent intput noise sources Noise model: - Noise fi gure of 3dB: + + Show stopper values: - 50 (c) 2020 A.J.M. Montagne
Voltage and current drive capability 51 (c) 2020 A.J.M. Montagne
Voltage and current drive capability Load drive requirements 52 (c) 2020 A.J.M. Montagne
Voltage and current drive capability Load drive requirements Load signal voltage: 4.5V pp 53 (c) 2020 A.J.M. Montagne
Voltage and current drive capability Load drive requirements Load signal voltage: 4.5V pp Maximum rate of change @ 100kHz sine wave, 4.5V pp : 1.41 V/us 54 (c) 2020 A.J.M. Montagne
Voltage and current drive capability Load drive requirements Load signal voltage: 4.5V pp Maximum rate of change @ 100kHz sine wave, 4.5V pp : 1.41 V/us Maximum load current @ 100kHz sine wave, 4.5Vpp, 3.4nF: 4.8mA 55 (c) 2020 A.J.M. Montagne
Voltage and current drive capability Load drive requirements Load signal voltage: 4.5V pp Maximum rate of change @ 100kHz sine wave, 4.5V pp : 1.41 V/us Maximum load current @ 100kHz sine wave, 4.5Vpp, 3.4nF: 4.8mA Quiescent output voltage: 2.5V 56 (c) 2020 A.J.M. Montagne
Voltage and current drive capability Load drive requirements Load signal voltage: 4.5V pp Maximum rate of change @ 100kHz sine wave, 4.5V pp : 1.41 V/us Maximum load current @ 100kHz sine wave, 4.5Vpp, 3.4nF: 4.8mA Quiescent output voltage: 2.5V Supply requirements 57 (c) 2020 A.J.M. Montagne
Voltage and current drive capability Load drive requirements Load signal voltage: 4.5V pp Maximum rate of change @ 100kHz sine wave, 4.5V pp : 1.41 V/us Maximum load current @ 100kHz sine wave, 4.5Vpp, 3.4nF: 4.8mA Quiescent output voltage: 2.5V Supply requirements Supply voltage: 5V 58 (c) 2020 A.J.M. Montagne
Voltage and current drive capability Load drive requirements Load signal voltage: 4.5V pp Maximum rate of change @ 100kHz sine wave, 4.5V pp : 1.41 V/us Maximum load current @ 100kHz sine wave, 4.5Vpp, 3.4nF: 4.8mA Quiescent output voltage: 2.5V Supply requirements Supply voltage: 5V No power consumption requirements 59 (c) 2020 A.J.M. Montagne
Voltage and current drive capability Load drive requirements Load signal voltage: 4.5V pp Maximum rate of change @ 100kHz sine wave, 4.5V pp : 1.41 V/us Maximum load current @ 100kHz sine wave, 4.5Vpp, 3.4nF: 4.8mA Quiescent output voltage: 2.5V Supply requirements Supply voltage: 5V No power consumption requirements Biasing errors take a part of the budget for the total voltage drop 60 (c) 2020 A.J.M. Montagne
Voltage and current drive capability Load drive requirements Load signal voltage: 4.5V pp Maximum rate of change @ 100kHz sine wave, 4.5V pp : 1.41 V/us Maximum load current @ 100kHz sine wave, 4.5Vpp, 3.4nF: 4.8mA Quiescent output voltage: 2.5V Supply requirements Supply voltage: 5V No power consumption requirements Biasing errors take a part of the budget for the total voltage drop Biasing concept with AC coupling 61 (c) 2020 A.J.M. Montagne
Voltage and current drive capability Load drive requirements Load signal voltage: 4.5V pp Maximum rate of change @ 100kHz sine wave, 4.5V pp : 1.41 V/us Maximum load current @ 100kHz sine wave, 4.5Vpp, 3.4nF: 4.8mA Quiescent output voltage: 2.5V Supply requirements Supply voltage: 5V No power consumption requirements Biasing errors take a part of the budget for the total voltage drop Biasing concept with AC coupling As presented in Chapter 9 62 (c) 2020 A.J.M. Montagne
Voltage and current drive capability Load drive requirements Load signal voltage: 4.5V pp Maximum rate of change @ 100kHz sine wave, 4.5V pp : 1.41 V/us Maximum load current @ 100kHz sine wave, 4.5Vpp, 3.4nF: 4.8mA Quiescent output voltage: 2.5V Supply requirements Supply voltage: 5V No power consumption requirements Biasing errors take a part of the budget for the total voltage drop Biasing concept with AC coupling As presented in Chapter 9 OpAmp requirements 63 (c) 2020 A.J.M. Montagne
Voltage and current drive capability Load drive requirements Load signal voltage: 4.5V pp Maximum rate of change @ 100kHz sine wave, 4.5V pp : 1.41 V/us Maximum load current @ 100kHz sine wave, 4.5Vpp, 3.4nF: 4.8mA Quiescent output voltage: 2.5V Supply requirements + Sourcing output saturation Minimum CM input to positive supply Supply voltage: 5V - No power consumption requirements { + Biasing errors take a part of the - + - CM input voltage budget for the total voltage drop range Minimum CM input to negative supply Sinking output saturation Biasing concept with AC coupling As presented in Chapter 9 OpAmp requirements 64 (c) 2020 A.J.M. Montagne
Voltage and current drive capability Load drive requirements Load signal voltage: 4.5V pp Maximum rate of change @ 100kHz sine wave, 4.5V pp : 1.41 V/us Maximum load current @ 100kHz sine wave, 4.5Vpp, 3.4nF: 4.8mA Quiescent output voltage: 2.5V Supply requirements + Sourcing output saturation Minimum CM input to positive supply Supply voltage: 5V - No power consumption requirements { + Biasing errors take a part of the - + - CM input voltage budget for the total voltage drop range Minimum CM input to negative supply Sinking output saturation Biasing concept with AC coupling As presented in Chapter 9 OpAmp requirements Supply voltage: 5V 65 (c) 2020 A.J.M. Montagne
Voltage and current drive capability Load drive requirements Load signal voltage: 4.5V pp Maximum rate of change @ 100kHz sine wave, 4.5V pp : 1.41 V/us Maximum load current @ 100kHz sine wave, 4.5Vpp, 3.4nF: 4.8mA Quiescent output voltage: 2.5V Supply requirements + Sourcing output saturation Minimum CM input to positive supply Supply voltage: 5V - No power consumption requirements { + Biasing errors take a part of the - + - CM input voltage budget for the total voltage drop range Minimum CM input to negative supply Sinking output saturation Biasing concept with AC coupling As presented in Chapter 9 OpAmp requirements Supply voltage: 5V Current drive capability: > 4.8mA + current through feedback network 66 (c) 2020 A.J.M. Montagne
Voltage and current drive capability Load drive requirements Load signal voltage: 4.5V pp Maximum rate of change @ 100kHz sine wave, 4.5V pp : 1.41 V/us Maximum load current @ 100kHz sine wave, 4.5Vpp, 3.4nF: 4.8mA Quiescent output voltage: 2.5V Supply requirements + Sourcing output saturation Minimum CM input to positive supply Supply voltage: 5V - No power consumption requirements { + Biasing errors take a part of the - + - CM input voltage budget for the total voltage drop range Minimum CM input to negative supply Sinking output saturation Biasing concept with AC coupling As presented in Chapter 9 OpAmp requirements Supply voltage: 5V Current drive capability: > 4.8mA + current through feedback network Output saturation source/sink: < 0.25V - total output biasing error voltage 67 (c) 2020 A.J.M. Montagne
Voltage and current drive capability Load drive requirements Load signal voltage: 4.5V pp Maximum rate of change @ 100kHz sine wave, 4.5V pp : 1.41 V/us Maximum load current @ 100kHz sine wave, 4.5Vpp, 3.4nF: 4.8mA Quiescent output voltage: 2.5V Supply requirements + Sourcing output saturation Minimum CM input to positive supply Supply voltage: 5V - No power consumption requirements { + Biasing errors take a part of the - + - CM input voltage budget for the total voltage drop range Minimum CM input to negative supply Sinking output saturation Biasing concept with AC coupling As presented in Chapter 9 OpAmp requirements Supply voltage: 5V Current drive capability: > 4.8mA + current through feedback network Output saturation source/sink: < 0.25V - total output biasing error voltage 68 (c) 2020 A.J.M. Montagne
Biasing errors 69 (c) 2020 A.J.M. Montagne
Biasing errors + - + - + - 70 (c) 2020 A.J.M. Montagne
Biasing errors Contributions to biasing errors: + - + - + - 71 (c) 2020 A.J.M. Montagne
Biasing errors Contributions to biasing errors: + - Supply voltage tolerance - + - + - 72 (c) 2020 A.J.M. Montagne
Biasing errors Contributions to biasing errors: + - Supply voltage tolerance - - Resistor tolerances + - + - 73 (c) 2020 A.J.M. Montagne
Biasing errors Contributions to biasing errors: + - Supply voltage tolerance - - Resistor tolerances + - Bias current OpAmp - + - 74 (c) 2020 A.J.M. Montagne
Biasing errors Contributions to biasing errors: + - Supply voltage tolerance - - Resistor tolerances + - Bias current OpAmp - O ff set current OpAmp - + - 75 (c) 2020 A.J.M. Montagne
Biasing errors Contributions to biasing errors: + - Supply voltage tolerance - - Resistor tolerances + - Bias current OpAmp - O ff set current OpAmp - - O ff set voltage OpAmp + - 76 (c) 2020 A.J.M. Montagne
Biasing errors Contributions to biasing errors: + - Supply voltage tolerance - - Resistor tolerances + - Bias current OpAmp - O ff set current OpAmp - - O ff set voltage OpAmp Interaction with other performance aspects: + - 77 (c) 2020 A.J.M. Montagne
Biasing errors Contributions to biasing errors: + - Supply voltage tolerance - - Resistor tolerances + - Bias current OpAmp - O ff set current OpAmp - - O ff set voltage OpAmp Interaction with other performance aspects: - Noise: + - 78 (c) 2020 A.J.M. Montagne
Biasing errors Contributions to biasing errors: + - Supply voltage tolerance - - Resistor tolerances + - Bias current OpAmp - O ff set current OpAmp - - O ff set voltage OpAmp Interaction with other performance aspects: - Noise: + - Bandwidth: - 79 (c) 2020 A.J.M. Montagne
Biasing errors Contributions to biasing errors: + - Supply voltage tolerance - - Resistor tolerances + - Bias current OpAmp - O ff set current OpAmp - - O ff set voltage OpAmp Interaction with other performance aspects: - Noise: + - Bandwidth: - Accuracy: - 80 (c) 2020 A.J.M. Montagne
Biasing errors Contributions to biasing errors: + - Supply voltage tolerance - - Resistor tolerances + - Bias current OpAmp - O ff set current OpAmp - - O ff set voltage OpAmp Interaction with other performance aspects: - Noise: + - Bandwidth: - Accuracy: - - PSRR: 81 (c) 2020 A.J.M. Montagne
Biasing errors Contributions to biasing errors: + - Supply voltage tolerance - - Resistor tolerances + - Bias current OpAmp - O ff set current OpAmp - - O ff set voltage OpAmp Interaction with other performance aspects: - Noise: + - Bandwidth: - Accuracy: - - PSRR: 82 (c) 2020 A.J.M. Montagne
Biasing errors X1 O_dcVar (1) R2 R3 + (2) R4 (3) - (out) (4) R1 V1 83 (c) 2020 A.J.M. Montagne
Biasing errors X1 Simpli fi ed result: O_dcVar (1) R2 R3 + (2) R4 (3) - (out) (4) R1 V1 84 (c) 2020 A.J.M. Montagne
Biasing errors X1 Simpli fi ed result: O_dcVar (1) R2 R3 + (2) R4 (3) - (out) (4) R1 V1 85 (c) 2020 A.J.M. Montagne
Biasing errors X1 Simpli fi ed result: O_dcVar (1) R2 R3 + (2) R4 (3) - (out) (4) R1 V1 86 (c) 2020 A.J.M. Montagne
Bandwidth design 87 (c) 2020 A.J.M. Montagne
Bandwidth design Determination of the required GB product of the OpAmp 88 (c) 2020 A.J.M. Montagne
Bandwidth design Determination of the required GB product of the OpAmp Use the simplest model that provides this information: 89 (c) 2020 A.J.M. Montagne
Bandwidth design Determination of the required GB product of the OpAmp Use the simplest model that provides this information: + - 90 (c) 2020 A.J.M. Montagne
Bandwidth design Determination of the required GB product of the OpAmp Use the simplest model that provides this information: + + + - - - 91 (c) 2020 A.J.M. Montagne
Bandwidth design Determination of the required GB product of the OpAmp Use the simplest model that provides this information: + + + - - - 92 (c) 2020 A.J.M. Montagne
Bandwidth design 93 (c) 2020 A.J.M. Montagne
Bandwidth design Evaluation of loop gain-poles product 94 (c) 2020 A.J.M. Montagne
Bandwidth design Evaluation of loop gain-poles product + + + - - - + - 95 (c) 2020 A.J.M. Montagne
Bandwidth design Evaluation of loop gain-poles product + + + - - - + - 96 (c) 2020 A.J.M. Montagne
Bandwidth design Evaluation of loop gain-poles product + + + - - - + - 97 (c) 2020 A.J.M. Montagne
Bandwidth design Evaluation of loop gain-poles product + + + - - - Achievable bandwidth B equals LP product: + - 98 (c) 2020 A.J.M. Montagne
Bandwidth design Evaluation of loop gain-poles product + + + - - - Achievable bandwidth B equals LP product: + - 99 (c) 2020 A.J.M. Montagne
Bandwidth design Evaluation of loop gain-poles product + + + - - - Achievable bandwidth B equals LP product: + - 100 (c) 2020 A.J.M. Montagne
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