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AMSOP-77 Datasheet(PDF) 6 Page - Advanced Monolithic Systems |
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AMSOP-77 Datasheet(HTML) 6 Page - Advanced Monolithic Systems |
6 / 7 page ![]() Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMSOP-77 TYPICAL APPLICATIONS (Continued) Precision Current Sinks Positive Current Sink Positive current Source These simple high current sinks require that the load float between the power supply and the sink. In these circuits, OP-77’s high gain, high CMRR, and low TCVOS assure high accuracy. Precision Absolute Value Amplifier The high gain and low TCVOS assure accurate operation with inputs from microvolts to volts. In this circuit, this signal always appears as a common-mode signal to the op amps. The OP-77E CMRR of 1 µV/V assures errors of less than 2ppm. Low Noise Precision Reference This circuit relies upon OP-77’s low TCVOS and noise combined with very high CMRR, to provide precision buffering of the averaged REF-01 voltage outputs. OP-77 + - R L 200 Ω IRF520 R1 1 Ω V+ V IN I O R1 V I IN O = 0V VIN ≥ FULL SCALE OF 1V, I O = 1A/V OP-77 + - R1 200 Ω IRF520 R L V IN I O V- R1 V I IN O = 0V VIN ≤ OP-77E + - 0.1 µF -15V +15V R3 2k Ω 4 6 7 2 3 0.1 µF 1k Ω OP-77E + - 0.1 µF -15V +15V 4 6 7 2 3 0.1 µF 1k Ω V OUT 0< V OUT<10V C1 30pF D1 1N4148 2N4393 D2 2 6 4 V O REF-01 2 6 4 V O REF-01 2 6 4 V O REF-01 100k Ω 100k Ω 100k Ω OP-77 + - V OUT 0.1 µF +15V 10 µF + |