Figure 2
Schematic diagram of the differential cascode amplifier being tested for the integrator to improve the pedestal stability. V+ and V− represent the differential input voltages; Vout is the output; Vbias, Vbn and Vbp are bias voltages setting the operating point of the cascode circuit; and Vdd and Vss are the supply voltages. The schematic diagram of the output-stage amplifier, shown in Fig. 1, is identical to this amplifier, but the lengths and widths of the gates are optimized differently for the two applications. |