Transcription of DAC基本架构II：二进制DAC - Analog Devices
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DAC基本架构II：二进制DAC - Analog Devices
1 DAC Walt Kester DAC II DAC MT-015R/8R/4R/2 RVVREFOUTMSBLSBA dapted from: B. D. Smith, "Coding by Feedback Methods," Proceedings of the I. R. E., Vol. 41, August 1953, pp. , 10/08, WK Page 1 of 10 DAC DAC DAC DAC 1920 ( 1 2 3) DAC DAC 1 DAC DAC DAC DAC DAC 2A( ) 2B( ) N DAC 1:2:4:8:..:2N 1 N LSB 2N 1 MSB 1 IC 8 DAC 128:1 MT-015 DIFFICULT TO FABRICATE IN ICFORM DUE TO LARGE RESISTOR OR CURRENT RATIOS FOR HIGH RESOLUTIONSVREFMSBLSBR2R4R8 RVREFMSBLSBR2R4R8 RCURRENT OUTPUTSINTO VIRTUAL GROUNDS(A) RESISTOR(B) CURRENT SOURCETI/2I/4I/8 LSBMSBIPage 2 of 10 2 DAC MSB DAC ( DAC ) DAC 3 4 DAC 3 DAC DAC DAC ADC
图1：电压模式二进制加权电阻DAC 作者：Walt Kester DAC基本架构II：二进制DAC 指南 MT-015 R/8 R/4 R/2 R V V REF OUT LSB MSB Adapted from: B. D. Smith, "Coding by Feedback Methods," Proceedings of the I. R. E., Vol. 41, August 1953, pp. 1053-1058
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