CS5521/22/23/24/28
ANALOG CHARACTERISTICS
(Continued)
Parameter
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
Range = 1 V, 2.5 V, or 5 V
NBV = AGND
Range = 25 mV, 55 mV, or 100 mV (Note 7)
Range = 1 V, 2.5 V, or 5 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
Input Current Drift
Range = 25 mV, 55 mV, or 100 mV
Input Leakage for Multiplexer when Off
Common Mode Rejection
Input Capacitance
Voltage Reference Input
Range
VREF+
VREF-
CVF Current
Common Mode Rejection dc
50, 60 Hz
Input Capacitance
System Calibration Specifications
Full Scale Calibration Range (VREF = 2.5V)
25 mV
55 mV
100 mV
1V
2.5 V
5V
Offset Calibration Range
25 mV
55 mV
100 mV
1V
2.5 V
5V
Bipolar/Unipolar Mode
10
25
40
0.40
1.0
2.0
Bipolar/Unipolar Mode
-
-
-
-
-
-
-
-
-
-
-
-
±12.5
±27.5
±50
±0.5
±1.25
±2.50
mV
mV
mV
V
V
V
-
-
-
-
-
-
32.5
71.5
105
1.30
3.25
VA+
mV
mV
mV
V
V
V
(Note 8)
(VREF+) - (VREF-)
1
(VREF-)+1
Min
Typ
Max
Unit
-0.150
NBV
1.85
0.0
-
-
-
-
-
-
-
-
-
-
-
100
10
1
10
120
120
10
2.5
-
-
5.0
110
130
16
0.950
VA+
2.65
VA+
300
-
-
-
-
-
-
VA+
VA+
(VREF+)-1
V
V
V
V
pA
nA
pA/°C
pA
dB
dB
pF
V
V
V
nA
dB
dB
pF
(Note 8)
dc
50, 60 Hz
NBV
-
-
-
-
-
-
-
-
(Note 9)
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
DS317F6
CIRRUS [ CIRRUS LOGIC ]
