CS5505/6/7/8
CS5505/6/7/8
ANALOG CHARACTERISTICS (TA = TMIN to TMAX; VA+ = 5V ± 10%; VA- = -5V ± 10%; VD+ =
3.3V ± 5%; VREF+ = 2.5V (external); VREF- = 0V; fCLK = 32.768kHz; Bipolar Mode; Rsource = 1kΩ with a
10nF to AGND at AIN; Analog input channel AIN1+; AIN- = AGND; unless otherwise specified.) (Notes 1, 2)
Parameter*
Specified Temperature Range
Accuracy
Linearity Error
Differential Nonlinearity
(No Missing Codes)
Full Scale Error
Full Scale Drift
Unipolar Offset
Unipolar Offset Drift
Bipolar Offset
Bipolar Offset Drift
Noise (Referred to Output)
CS5506/8-B
Min Typ Max
-40 to +85
CS5508-S
Min Typ Max
-55 to +125
Units
°C
-
0.0007 0.0015
-
0.0015 0.003 ±%FS
20
-
-
20
-
Bits
-
(Note 3) -
±4
±32
-
±8
±32 LSB20
(Note 4) -
±8
-
-
±32
-
LSB20
(Note 3) -
±8
±32
-
±16
±64 LSB20
(Note 4) -
±8
-
-
±16
-
LSB20
(Note 3) -
±4
±16
-
±8
±32 LSB20
(Note 4) -
±4
-
-
±8
-
LSB20
-
2.6
-
-
2.6
-
LSB-
rms20
mV
0.596
1.192
2.384
4.768
9.537
LSB’s
0.25
0.50
1.00
2.00
4.00
Unipolar Mode
% FS
0.0000238
0.0000477
0.0000954
0.0001907
0.0003814
ppm FS
LSB’s
0.24
0.13
0.47
0.26
0.95
0.50
1.91
1.00
3.81
2.00
VREF = 2.5V
Bipolar Mode
% FS
0.0000119
0.0000238
0.0000477
0.0000954
0.0001907
ppm FS
0.12
0.24
0.47
0.95
1.91
CS5506/8; 20-Bit Unit Conversion Factors
DYNAMIC CHARACTERISTICS
Parameter
Modulator Sampling Frequency
Output Update Rate (CONV = 1)
Filter Corner Frequency
Settling Time to 1⁄2 LSB (FS Step)
DS59F64
Symbol
fs
fout
f-3dB
ts
Ratio
fclk/2
fclk/1622
fclk/1928
1/fout
Units
Hz
Sps
Hz
s
3