CS5505/6/7/8
CS5505/6/7/8
ANALOG CHARACTERISTICS (T
= T
to T ; VA+ = 5V ± 10%; VA- = -5V ± 10%; VD+ =
MAX
A
MIN
3.3V ± 5%; VREF+ = 2.5V (external); VREF- = 0V; f
= 32.768kHz; Bipolar Mode; R
= 1kΩ with a
CLK
source
10nF to AGND at AIN; Analog input channel AIN1+; AIN- = AGND; unless otherwise specified.) (Notes 1, 2)
CS5506/8-B
Typ
CS5508-S
Typ
Parameter*
Specified Temperature Range
Accuracy
Min
Max
Min
Max
Units
-40 to +85
-55 to +125
°C
Linearity Error
-
0.0007 0.0015
-
0.0015 0.003
±%FS
Differential Nonlinearity
(No Missing Codes)
Bits
20
-
-
-
±32
-
20
-
-
-
±32
-
Full Scale Error
(Note 3)
(Note 4)
(Note 3)
(Note 4)
(Note 3)
(Note 4)
LSB
LSB
LSB
LSB
LSB
LSB
±4
±8
±8
±8
±4
±4
2.6
±8
20
20
20
20
20
20
Full Scale Drift
-
-
±32
±16
±16
±8
Unipolar Offset
-
-
±32
±64
Unipolar Offset Drift
Bipolar Offset
-
-
-
-
-
-
±16
±32
Bipolar Offset Drift
Noise (Referred to Output)
-
-
-
-
-
-
±8
-
-
2.6
LSB-
rms
20
Unipolar Mode
% FS
Bipolar Mode
% FS
mV
LSB’s
0.25
0.50
1.00
2.00
4.00
ppm FS
LSB’s
ppm FS
0.12
0.596
1.192
2.384
4.768
9.537
0.0000238
0.0000477
0.0000954
0.0001907
0.0003814
0.24
0.47
0.95
1.91
3.81
0.13
0.26
0.50
1.00
2.00
0.0000119
0.0000238
0.0000477
0.0000954
0.0001907
0.24
0.47
0.95
1.91
VREF = 2.5V
CS5506/8; 20-Bit Unit Conversion Factors
DYNAMIC CHARACTERISTICS
Parameter
Symbol
Ratio
Units
Modulator Sampling Frequency
Output Update Rate (CONV = 1)
f
f
/2
Hz
Sps
Hz
s
s
clk
f
f
f
/1622
/1928
out
clk
clk
Filter Corner Frequency
f
-3dB
1
t
1/f
out
Settling Time to ⁄ LSB (FS Step)
s
2
DDSS599FF45
33
CIRRUS [ CIRRUS LOGIC ]
