CS5505 datasheet(3/40 Pages) CIRRUS

3 / 40 page

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)

CS5506/8-B

CS5508-S

Parameter*

Min

Typ

Max

Min

Typ

Max

Units

Specified Temperature Range

-40 to +85

-55 to +125

°C

Accuracy

Linearity Error

0.0007

0.0015

0.003

±%FS

Differential Nonlinearity

(No Missing Codes)

Bits

Full Scale Error

(Note 3)

±4

±32

±8

±32

LSB20

Full Scale Drift

(Note 4)

±8

±32

LSB20

Unipolar Offset

(Note 3)

±8

±32

±16

±64

LSB20

Unipolar Offset Drift

(Note 4)

±8

±16

LSB20

Bipolar Offset

(Note 3)

±4

±16

±8

±32

LSB20

Bipolar Offset Drift

(Note 4)

±4

±8

LSB20

Noise (Referred to Output)

2.6

LSB-

rms20

Unipolar Mode

Bipolar Mode

LSB’s

% FS

ppm FS

LSB’s

% FS

ppm FS

0.596

0.25

0.0000238

0.24

0.13

0.0000119

0.12

1.192

0.50

0.0000477

0.47

0.26

0.0000238

0.24

2.384

1.00

0.0000954

0.95

0.50

0.0000477

0.47

4.768

2.00

0.0001907

1.91

1.00

0.0000954

0.95

9.537

4.00

0.0003814

3.81

2.00

0.0001907

1.91

VREF = 2.5V

CS5506/8; 20-Bit Unit Conversion Factors

DYNAMIC CHARACTERISTICS

Parameter

Symbol

Ratio

Units

Modulator Sampling Frequency

fclk/2

Output Update Rate (CONV = 1)

fout

fclk/1622

Sps

Filter Corner Frequency

f-3dB

fclk/1928

Settling Time to 1

⁄2 LSB (FS Step)

1/fout

CS5505/6/7/8

DS59F7

CS5505/6/7/8

DS59F7

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