Differential Input Amplifier Circuit With Common-Mode Voltage Up To ±100V

Published:2011/7/16 8:59:00 Author:Robert | Keyword: Differential, Input, Amplifier, Common-Mode Voltage, ±100V | From:SeekIC

The picture shows the differential input amplifier circuit with common-mode voltage up to ±100V. In practical applications, sometime it needs the amplifier to have high common-mode voltage (±100V). For enhancement of this feature, it offen needs to sacrific some other features. The differential input amplifier circuit, which could achieve that the common-mode voltage is up to ±l00V, is shown in the picture. This circuit's voltage gain is only equal to 1. The circuit uses two common integrated single operational amplifiers 301. The table shows the 301 integrated operational amplifier's main parameters (typical value).



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