Characteristics/specifications, Analog characteristics, Accuracy (both channels) – Cirrus Logic CS5550 User Manual
Page 5: Analog inputs (ain1±), Accuracy, Analog inputs (ain2±), Cs5550
CS5550
DS630F1
5
2. CHARACTERISTICS/SPECIFICATIONS
•
Min / Max characteristics and specifications are guaranteed over all Operating Conditions.
•
Typical characteristics and specifications are measured at nominal supply voltages and T
A
= 25°C.
•
DGND = 0 V. All voltages with respect to 0 V.
ANALOG CHARACTERISTICS
Notes: 1. Applies after system calibration
2. Effective Input Impedance (EII) is determined by clock frequency (DCLK) and Input Capacitance (IC).
EII = 1/(IC*DCLK/4). Note that DCLK = MCLK / K.
Parameter
Symbol Min
Typ
Max
Unit
Accuracy (Both Channels)
Common Mode Rejection
(DC, 50, 60 Hz)
CMRR
80
-
-
dB
Offset Drift
-
5
-
nV/°C
Analog Inputs (AIN1
±
)
Differential Input Voltage Range
(Gain = 10)
{(AIN1+) - (AIN1-)}
(Gain = 50)
AIN
1
0
0
-
-
500
100
mV
P-P
mV
P-P
Total Harmonic Distortion
THD
1
80
-
-
dB
Common Mode + Signal
Both Gain Ranges
-0.25
-
VA+
V
Crosstalk with AIN2± at Full Scale
(50, 60 Hz)
-
-
-115
dB
Input Capacitance
(Gain = 10)
(Gain = 50)
IC
1
-
-
25
25
-
-
pF
pF
Effective Input Impedance
(Gain = 10)
(Note 2)
(Gain = 50)
EII
1
30
30
-
-
-
-
k
Ω
k
Ω
Noise (Referred to Input)
(Gain = 10)
(Gain = 50)
N
1
-
-
-
-
22.5
4.5
µV
rms
µV
rms
Accuracy
Bipolar Offset Error
(Note 1)
VOS
-
-
±0.001
%F.S.
Full-Scale Error
(Note 1)
FSE
-
-
±0.001
%F.S.
Analog Inputs (AIN2
±
)
Differential Input Voltage Range
{(AIN2+) - (AIN2-)}
AIN
2
0
-
500
mV
P-P
Total Harmonic Distortion
THD
2
65
-
-
dB
Common Mode + Signal
-0.25
-
VA+
V
Crosstalk with AIN1± at Full Scale
(50, 60 Hz)
-
-
-70
dB
Input Capacitance
(Gain = 10)
IC
2
-
0.2
-
pF
Effective Input Impedance (Note 2)
(Gain = 10)
EII
2
5
-
-
M
Ω
Noise (Referred to Input)
(Gain = 10)
N
2
-
-
150
µV
rms
Accuracy
Bipolar Offset Error
(Note 1)
VOS
-
-
±0.01
%F.S.
Full-Scale Error
(Note 1)
FSE
-
-
±0.01
%F.S.