CS5509(1995) View Datasheet(PDF) - Cirrus Logic
Part Name
Description
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CS5509 Datasheet PDF : 30 Pages
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CS5509
ANALOG CHARACTERISTICS (TA = 25°C; VA+ = 5V ± 10%; VD+ = 3.3V ± 5%; VREF+ = 2.5V,
VREF- = 0V; fCLK = 330kHz; Bipolar Mode; Rsource = 50Ω with a 10nF to GND at AIN; AIN- = 2.5V; unless
otherwise specified.) (Notes 1, 2)
Accuracy
Parameter*
Min
Typ
Max
Units
Linearity Error
fCLK = 32.768 kHz
fCLK = 165 kHz
fCLK = 247.5 kHz
fCLK = 330 kHz
Differential Nonlinearity
Full Scale Error
Full Scale Drift
Unipolar Offset
Unipolar Offset Drift
Bipolar Offset
Bipolar Offset Drift
Noise (Referred to Output)
Analog Input
-
-
-
-
-
(Note 3)
-
(Note 4)
-
(Note 3)
-
(Note 4)
-
(Note 3)
-
(Note 4)
-
-
0.0015
0.0015
0.0015
0.005
±0.25
±0.25
±0.5
±0.5
±0.5
±0.25
±0.25
0.16
0.003
0.003
0.003
0.0125
±0.5
±2
-
±2
-
±1
-
-
±%FS
±%FS
±%FS
±%FS
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSBrms
Analog Input Range:
Unipolar
-
0 to +2.5
-
Bipolar
(Note 5, 6)
-
±2.5
-
Common Mode Rejection:
dc
-
105
-
fCLK = 32.768kHz
50,60 Hz
(Note 2)
120
-
-
Input Capacitance
-
15
-
Volts
Volts
dB
dB
pF
DC Bias Current
(Note 1)
-
5
-
nA
Power Supplies
DC Power Supply Currents:
Power Dissipation
ITotal
IAnalog
IDigital
-
-
-
(Note 7)
-
360
450
µA
300
-
µA
60
-
µA
1.7
2.25
mW
Power Supply Rejection
-
80
-
dB
Notes:
1. Both source resistance and shunt capacitance are critical in determining the CS5509’s source
impedance requirements. Refer to the text section Analog Input Impedance Considerations.
2. Specifications guaranteed by design, characterization and/or test.
3. Applies after calibration at the temperature of interest.
4. Total drift over the specified temperature range since calibration at power-up at 25°C.
5. The input is differential. Therefore, GND ≤ Signal + Common Mode Voltage ≤ VA+.
6. The CS5509 can accept input voltages up to the VA+ analog supply. In unipolar mode the CS5509
will output all 1’s if the dc input magnitude ((AIN+)-(AIN-)) exceeds ((VREF+)-(VREF-)) and will
output all 0’s if the input becomes more negative than 0 Volts. In bipolar mode the CS5509 will
output all 1’s if the dc input magnitude ((AIN+)-(AIN-)) exceeds ((VREF+)-(VREF-)) and will output all
0’s if the input becomes more negative in magnitude than -((VREF+)-(VREF-)).
7. All outputs unloaded. All inputs CMOS levels.
* Refer to the Specification Definitions immediately following the Pin Description Section.
Specifications are subject to change without notice.
2
DS125F1
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