CS3302

6

DS596F3

ANALOG CHARACTERISTICS (CONT.)

Notes: 7. Common mode signals pass through the differential amplifier architecture.

8. Absolute gain accuracy tests the matching of x1 gain across multiple CS3302 devices.

9. Relative gain accuracy tests the tracking of x1,x2, x4,x16,x32,x64 gain relative to x8 gain on a single

CS3302 device.

10. 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.

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

Ω termination.

12. 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.

13. 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.

Parameter

Symbol

CS3302

Unit

Min

Typ

Max

Gain

Gain, Differential

GAIN

x1

-

x64

Gain, Common Mode

(Note 7)

-x1-

Gain Accuracy, Absolute

-+1+2%

Gain Accuracy, Relative

-+0.2

+0.5

%

Gain Drift

(Note 4, 10)

-5

-

ppm / ºC

Offset

Offset Voltage, Input Referred

(Note 11)OFST

-

+250

+750

µV

Offset After Calibration, Absolute

-+1-

µV

Offset Calibration Range

-100-

% F.S.

Offset Voltage Drift

-1

-

µV / ºC