CS5516 datasheet(2/41 Pages) CIRRUS

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CS5516

ANALOG CHARACTERISTICS (TA = TMIN to TMAX; VA+, VD+, MDRV+ = 5V; VA-, VD- = -5V;

VREF= 2.5V(external differential voltage across VREF+ and VREF-); fCLK = 4.9152 MHz;

AC Excitation 300 Hz; Gain = 25; Bipolar Mode; Rsource = 300

Ω with a 4.7nF to AGND at AIN (see Note 1);

unless otherwise specified.)

Parameter*

Min

Typ

Max

Units

Specified Temperature Range

-40 to +85

°C

Accuracy

Linearity Error

0.0015

0.003

±%FS

Differential Nonlinearity

±0.25

±0.5

LSB16

Unipolar Gain Error

(Note 2)

±8

±31

ppm

Bipolar Gain Error

(Note 2)

±8

±31

ppm

Unipolar/Bipolar Gain Drift

±1

ppm/

°C

Unipolar Offset

(Note 2)

±1

±2

LSB16

Bipolar Offset

(Note 2)

±1

±2

LSB16

Offset Drift

±0.005

µV/°C

Noise (Referred to Input)

Gain = 25 (25 x 1)

Gain = 50 (25 x 2)

Gain = 100 (25 x 4)

Gain = 200 (25 x 8)

250

200

150

nVrms

Notes:

1. The AIN and VREF pins present a very high input resistance at dc and a minor dynamic load which

scales to the master clock frequency. Both source resistance and shunt capacitance are therefore

critical in determining the source impedance requirements of the CS5516 and CS5520 at these pins.

2. Applies after system calibration at the temperature of interest.

Specifications are subject to change without notice.

Unipolar Mode

Bipolar Mode

µV

LSB’s

% FS

ppm FS

LSB’s

% FS

ppm FS

0.4

0.26

0.0004

0.13

0.0002

0.76

0.50

0.0008

0.26

0.0004

1.52

1.00

0.0015

0.50

0.0008

3.04

2.00

0.0030

1.00

0.0015

6.08

4.00

0.0061

2.00

0.0030

VREF = 2.5V

PGA gain = 1

CS5516; 16-Bit Unit Conversion Factors

* Refer to the Specification Definitions immediately following the Pin Description Section.

DS74F1

DS74F2

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