CS3302 Datasheet, PDF (6/15 Pages) Cirrus Logic – HIGH Z PROGRAMMABLE GAIN DIFFERENTIAL AMPLIFIER

CS3302
ANALOG CHARACTERISTICS (CONT.)
Parameter
Gain
Gain, Differential
Gain, Common Mode
Gain Accuracy, Absolute
Gain Accuracy, Relative
Gain Drift
Offset
Offset Voltage, Input Referred
Offset After Calibration, Absolute
Offset Calibration Range
Offset Voltage Drift
Symbol
(Note 7, 9)
(Note 8, 9)
(Note 4)
GAIN_DM
GAIN_CM
GA_ABS
GA_REL
GAIN_TC
(Note 9, 10) OFST
(Note 11)
(Note 12)
(Note 4)
OFST_CAL
OFST_RNG
OFST_TC
CS3302
Min
Typ
Max
x1
-
x64
-
x1
-
-
+1
+2
-
+0.4 +0.8
-
5
-
-
+250 +750
-
+1
-
-
100
-
-
1
-
Unit
%
%
ppm / ºC
µV
µV
% F.S.
µV / ºC
Notes: 7. Absolute gain accuracy tests the matching of x1 gain across multiple CS3302 devices.
8. Relative gain accuracy tests the tracking of x2 - x64 gain relative to x1 gain on a single CS3302 device.
9. Specification is for the parameter over the specified temperature range and is for the CS3302 device
only. It does not include the effects of external components.
10. Offset voltage is tested with the amplifier inputs connected to the internal 800Ω termination.
11. The absolute offset after calibration specification applies to the effective offset voltage of the CS3302
output when used with the CS5371/72 modulator and CS5376A digital filter, and is measured from the
digitally calibrated output codes of the CS5376A.
12. The CS3302 offset calibration is performed digitally with the CS5371/72 modulator and CS5376A digital
filter and includes the full scale signal range. Calibration offsets of greater than + 5% of full scale will
begin to subtract from system dynamic range.
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