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CS5532 Fiches technique(PDF) 5 Page - Cirrus Logic |
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CS5532 Fiches technique(HTML) 5 Page - Cirrus Logic |
5 / 50 page CS5531/32/33/34-AS DS289F5 5 ANALOG CHARACTERISTICS (Continued) (See Notes 1 and 2.) Notes: 5. The voltage on the analog inputs is amplified by the PGIA, and becomes VCM ± Gain*(AIN+ - AIN-)/2 at the differential outputs of the amplifier. In addition to the input common mode + signal requirements for the analog input pins, the differential outputs of the amplifier must remain between (VA- + 0.1 V) and (VA+ - 0.1 V) to avoid saturation of the output stage. 6. See the section of the data sheet which discusses input models. 7. Input current on AIN+ or AIN- (with Gain = 1), or VREF+ or VREF- may increase to 250 nA if operated within 50 mV of VA+ or VA-. This is due to the rough charge buffer being saturated under these conditions. Parameter Min Typ Max Unit Analog Input Common Mode + Signal on AIN+ or AIN-Bipolar/Unipolar Mode Gain = 1 Gain = 2, 4, 8, 16, 32, 64 (Note 5) VA- VA- + 0.7 - - VA+ VA+ - 1.7 V V CVF Current on AIN+ or AIN- Gain = 1 (Note 6, 7) Gain = 2, 4, 8, 16, 32, 64 - - 50 1200 - - nA pA Input Current Noise Gain = 1 Gain = 2, 4, 8, 16, 32, 64 - - 200 1 - - pA/ √Hz pA/ √Hz Input Leakage for Mux when Off (at 25 °C) - 10 - pA Off-channel Mux Isolation - 120 - dB Open Circuit Detect Current 100 300 - nA Common Mode Rejection dc, Gain = 1 dc, Gain = 64 50, 60 Hz - - - 90 130 120 - - - dB dB dB Input Capacitance - 60 - pF Guard Drive Output - 20 - µA Voltage Reference Input Range (VREF+) - (VREF-) 1 2.5 (VA+)-(VA-) V CVF Current (Note 6, 7) - 50 - nA Common Mode Rejection dc 50, 60 Hz - - 120 120 - - dB dB Input Capacitance 11 - 22 pF System Calibration Specifications Full-scale Calibration Range Bipolar/Unipolar Mode 3 - 110 %FS Offset Calibration Range Bipolar Mode -100 - 100 %FS Offset Calibration Range Unipolar Mode -90 - 90 %FS |
Numéro de pièce similaire - CS5532 |
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Description similaire - CS5532 |
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