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AS1543 数据表(PDF) 5 Page - ams AG |
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AS1543 数据表(HTML) 5 Page - ams AG |
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5 / 29 page  www.austriamicrosystems.com Revision 1.00 5 - 29 AS1543/44 Data Sheet - E l e c t r i c a l C h a r a c t e r i s t i c s 6 Electrical Characteristics VDD = VDRIVE = 2.7 to 5.25V, REFIN = 2.5V, fSCLK = 20MHz (50% Duty cycle), VCMIN = VREFIN/2 (when SE/FDN = 0), TAMB = -40 to +85°C. Typical values at TAMB = +25°C and VDD = VDRIVE = 5.25V (unless otherwise specified). Table 3. Electrical Characteristics Symbol Parameter Condition Min Typ Max Unit DC Accuracy Resolution 12 Bits INL Integral Nonlinearity ±1 LSB DNL Differential Nonlinearity Straight Binary Output Coding; Guaranteed No Missed Codes to 12 Bits -0.95 +1.2 LSB Offset Error Bit SE/FDN = 1, bit CODING = 1 Bit RANGE = 1 ±4 LSB Offset Error Match ±0.5 LSB Gain Error ±4 LSB Gain Error Match ±0.6 LSB Offset Error Bit RANGE = 0 ±4 LSB Offset Error Match ±0.5 LSB Gain Error ±4 LSB Gain Error Match ±0.6 LSB Zero Code Error Bit SE/FDN = 0, bit CODING = 0 Bit RANGE = 1 ±0.6 ±4 LSB Zero Code Error Match ±0.5 LSB Gain Error ±4 LSB Gain Error Match ±0.5 LSB Zero Code Error Bit RANGE = 0 ±0.6 ±4 LSB Zero Code Error Match ±0.5 LSB Gain Error ±4 LSB Gain Error Match ±0.5 LSB Dynamic Specifications 50kHz sinewave input SINAD Signal to Noise + Distortion Ratio Bit RANGE = 1, bit SE/FDN = 1 71.2 dB SNR Signal-to-Noise Ratio 71.8 dB THD Total Harmonic Distortion -82 dB SFDR Spurious-Free Dynamic Range 84 dB SINAD Signal to Noise + Distortion Bit RANGE = 0, bit SE/FDN = 0, bit CODING = 0 68 71 dB SNR Signal-to-Noise Ratio 68.5 71.5 dB THD Total Harmonic Distortion -83 -71 dB SFDR Spurious-Free Dynamic Range 73 85 dB IMD Intermodulation Distortion fA = 40.1kHz, fB = 41.5kHz Second Order Terms -83 dB Third Order Terms -91 Channel-to-Channel Isolation fIN = 400kHz -79 dB Full Power Bandwidth @ 3dB 35 MHz @ 0.1dB 3.6 |
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