Cirrus Logic CS5530 - Manual (Page 5)

CS5530
DS742F3 5
ANALOG CHARACTERISTICS
(Continued)
(See Notes 1 and 2.)
Notes: 5. See the section of the data sheet which discusses input models.
6. Input current on 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 (VA-) + 1.6 - (VA+) - 1.6 V
CVF Current on AIN+ or AIN- - 1200 - pA
Input Current Noise - 1 - pA/ √Hz
Open Circuit Detect Current 100 300 - nA
Common Mode Rejection DC
50, 60 Hz -
- 130
120 -
- dB
dB
Input Capacitance - 10 - pF
Voltage Reference Input
Range (VREF+) - (VREF-) 1 2.5 (VA+)-(VA-) V
CVF Current (Note 5, 6) - 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