OPA2325 Datasheet, PDF (19/32 Pages) Texas Instruments – Precision, 10-MHz, Low-Noise, Low-Power, RRIO, CMOS Operational Amplifier

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OPA2325
SBOS637 – OCTOBER 2016
Typical Application (continued)
8.2.2 Detailed Design Procedure
Traditional CMOS rail-to-rail input amplifiers use a complementary input stage: an N-channel input differential
pair in parallel with a P-channel differential pair, as shown in Figure 47.
+VSUPPLY
IS1
VIN-
VIN+
PCH1
PCH2
NCH3
NCH4
e-Trim^TM
-VSUPPLY
Copyright © 2016, Texas Instruments Incorporated
Figure 47. Complementary Input Stage (Traditional Rail-to-Rail Input CMOS Amplifiers)
Copyright © 2016, Texas Instruments Incorporated
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