14.5. Two-Stage Amplifier with Current-Source Biasing
The cascade amplifier that includes all features discussed up to this point is given in Fig. 14.5. Note that the only (internal) resistor is that of the reference-current circuit. Bias currents for this circuit can be set up using gate-width proportions. We note that ID3 ∝ ID5 since M3 and M5 have a common bias voltage, VSG4. Thus
Equation 14.24
Figure 14.5. Two-stage amplifier with current-source biasing. R1 is the only resistor in the internal circuit. RG is externally connected.
Get Analog Electronics with LabVIEW® now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
