Cirrus Logic CS5374 - Manual (Page 8)

CS5374
CS5374
8
PERFORMANCE SPECIFICATIONS (CONT.)
Notes: 14. Channel Gain is the nominal full-scale 24-bit output code from the CS5376A digital filter for a 5 V
PP
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 ) GAIN
LSB
-6101194
0xA2E736
-
- 6101194
0x5D18CA
LSB
LSB
Absolute Gain Accuracy ( Note 3, 15 ) GAIN
ABS
- ±1 +2 %
Relative Gain Accuracy 2x
( Note 16 ) 4x
8x
16x
32x
64x
GAIN
REL
-0.3
-
-
-
-
-
-0.1
-0.1
0.1
0.4
0.4
0.3
0.1
-
-
-
-
-
%
%
%
%
%
%
Gain Drift ( Note 17) GAIN
TC
- 25 - ppm / °C
Channel Offset Accuracy
Amplifier Offset Voltage, Input Referred
( Note 18 ) OFST
AMP
- ±250 ±750 µV
Amplifier Offset Drift, Input Referred ( Note 17 ) OFST
ATC
- 0.3 - µV / °C
Modulator Offset Voltage, Differential (OFST = 1) OFST
MOD
- ±1 - mV
Modulator Offset Voltage, Channel 1 (OFST = 0) OFST
MOD1
- -60 - mV
Modulator Offset Voltage, Channel 2 (OFST = 0) OFST
MOD2
- -35 - mV
Modulator Offset Drift ( Note 17 ) OFST
MTC
- 1 - µV / °C
Offset After Calibration ( Note 19 ) OFST
CAL
- ±1 - μV
Offset Calibration Range ( Note 20 ) OFST
RNG
- 100 - %FS
Channel CMRR and Crosstalk
Common Mode Rejection Ratio
CMRR - 110 - dB
Crosstalk, Amplifier Multiplexed Inputs CXT
MI
- -130 - dB
Crosstalk, Channel-to-Channel CXT
CC
- -130 - dB