CS5528-AP Ver la hoja de datos (PDF) - Cirrus Logic
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CS5528-AP Datasheet PDF : 56 Pages
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CS5521/22/23/24/28
ANALOG CHARACTERISTICS (Continued)
Parameter
Min
Typ
Max Unit
Analog Input
Common Mode + Signal on AIN+ or AIN-
Bipolar/Unipolar Mode
NBV = -1.8 to -2.5 V
Range = 25 mV, 55 mV, or 100 mV
-0.150
-
0.950
V
Range = 1 V, 2.5 V, or 5 V
NBV
-
VA+
V
NBV = AGND
Range = 25 mV, 55 mV, or 100 mV (Note 7) 1.85
-
2.65
V
Range = 1 V, 2.5 V, or 5 V
0.0
-
VA+
V
CVF Current on AIN+ or AIN-
(Note 8)
Range = 25 mV, 55 mV, or 100 mV
-
Range = 1 V, 2.5 V, or 5 V
-
100
300
pA
10
-
nA
Input Current Drift
(Note 8)
Range = 25 mV, 55 mV, or 100 mV
-
1
-
pA/°C
Input Leakage for Multiplexer when Off
-
10
-
pA
Common Mode Rejection dc
50, 60 Hz
-
120
-
dB
-
120
-
dB
Input Capacitance
-
10
-
pF
Voltage Reference Input
Range
(VREF+) - (VREF-)
1
2.5
VA+
V
VREF+
(VREF-)+1
-
VA+
V
VREF-
NBV
-
(VREF+)-1
V
CVF Current
(Note 8) -
5.0
-
nA
Common Mode Rejection dc
50, 60 Hz
-
110
-
dB
-
130
-
dB
Input Capacitance
-
16
-
pF
System Calibration Specifications
Full Scale Calibration Range (VREF = 2.5V)
Bipolar/Unipolar Mode
25 mV
10
-
32.5 mV
55 mV
25
-
71.5 mV
100 mV
40
-
105
mV
1V
0.40
-
1.30
V
2.5 V
1.0
-
3.25
V
5V
2.0
-
VA+
V
Offset Calibration Range
25 mV
55 mV
100 mV
1V
2.5 V
5V
Bipolar/Unipolar Mode
-
-
(Note 9) -
-
-
-
-
±12.5 mV
-
±27.5 mV
-
±50
mV
-
±0.5
V
-
±1.25
V
-
±2.50
V
Notes: 7. For the CS5528, the 25 mV, 55 mV and 100 mV ranges cannot be used unless NBV is powered at -1.8
to -2.5 V
8. See the section of the data sheet which discusses input models. Chop clock is 256 Hz (XIN/128) for
PGIA (programmable gain instrumentation amplifier). XIN = 32.768 kHz.
9. The maximum full scale signal can be limited by saturation of circuitry within the internal signal path.
6
DS317F2
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