CS5374 datasheet(8/44 Pages) CIRRUS

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CS5374

DS862F1

PERFORMANCE SPECIFICATIONS (CONT.)

Notes: 14. Channel Gain is the nominal full-scale 24-bit output code from the CS5376A digital filter for a 5 VPP

differential signal into the CS5374 analog inputs at 1x gain. Value is offset corrected.

15. Absolute gain accuracy tests the matching of 1x gain across multiple CS5374 channels in a system.

16. Relative gain accuracy tests the tracking of 2x, 4x, 8x, 16x, 32x, 64x gain relative to 1x gain on a single

CS5374 channel.

17. Specification is for the parameter over the specified temperature range and is for the CS5374 device

only. It does not include the effects of external components.

18. Offset voltage is tested with the amplifier inputs connected to the internal 800

Ω termination.

19. The offset after calibration specification is measured from the digitally calibrated output codes of the

CS5376A digital filter.

20. Offset calibration is performed in the CS5376A digital filter and includes the full-scale signal range.

Parameter

Symbol

CS5374

Unit

Min

Typ

Max

Channel Gain Accuracy

Channel Gain, Offset Corrected

(Note 3, 14)GAINLSB

-6101194

0xA2E736

6101194

0x5D18CA

LSB

Absolute Gain Accuracy

(Note 3, 15)GAINABS

-±1

+2%

Relative Gain Accuracy

(Note 16)4x

16x

32x

64x

GAINREL

-0.3

-0.1

0.1

0.4

0.3

0.1

Gain Drift

(Note 17)

GAINTC

-25-

ppm / °C

Channel Offset Accuracy

Amplifier Offset Voltage, Input Referred

(Note 18)OFSTAMP

±250

±750

µV

Amplifier Offset Drift, Input Referred

(Note 17)OFSTATC

-0.3

µV / °C

Modulator Offset Voltage, Differential

(OFST =1) OFSTMOD

-±1-

Modulator Offset Voltage, Channel 1

(OFST =0) OFSTMOD1

--60

Modulator Offset Voltage, Channel 2

(OFST =0) OFSTMOD2

--35

Modulator Offset Drift

(Note 17)OFSTMTC

-1

µV / °C

Offset After Calibration

(Note 19)OFSTCAL

-±1-

μV

Offset Calibration Range

(Note 20)OFSTRNG

-100

%FS

Channel CMRR and Crosstalk

Common Mode Rejection Ratio

CMRR

110

Crosstalk, Amplifier Multiplexed Inputs

CXTMI

--130-

Crosstalk, Channel-to-Channel

CXTCC

--130-

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