ZSC31015EAG1-R datasheet(40/52 Pages) IDT

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November 14, 2016

ZSC31015 Datasheet

3.6.2.5. Tco Interpretation

Tco is specified as having an 8-bit magnitude with an additional sign bit and a scalar bit (Tc_cfg). When the scalar

bit is set, the signed Tco is multiplied by 8.

 Tco Resolution: 0.175 μV/V/oC

(input referred)

 Tco Range:

± 44.6

μV/V/

(input referred)

If the scaling bit is used, then the above resolution and range are scaled by 8 to give the following results:

 Tco Scaled Resolution:

1.40

μV/V/

(input referred)

 Tco Scaled Range:

± 357

μV/V/

oC (input referred)

3.6.2.6. Tcg Interpretation

Tcg is specified as an 8-bit magnitude with an additional sign bit (Tc_cfg).

 Tcg Resolution: 17.0 ppm/oC

 Tcg Range:

±4335 ppm/

3.6.2.7. SOT Interpretation

SOT is a 2

nd order term that can apply to one and only one of the following: bridge non-linearity correction,

Tco non-linearity correction, or Tcg non-linearity correction.

As it applies to bridge non-linearity correction:

 Resolution: 0.25% @ full scale

 Range:

+25% @ full scale to -25% @ full scale

(Saturation in internal arithmetic will occur at greater negative nonlinearities.)

As it applies to Tcg:

 Resolution: 0.3 ppm/(oC)2

 Range:

+/- 38ppm/(

oC)2

As it applies to Tco:

2 settings are possible. It is possible to scale the effect of SOT by 8. If Tc_cfg[1] is set, then both Tco and

SOT’s contribution to Tco are multiplied by 8.

 Resolution at unity scaling: 1.51nV/V/(oC)2 (input referred)

 Range: +/- 0.192V/V/(oC)2 (input referred)

 Resolution at 8x scaling: 12.1nV/V/(oC)2 (input referred)

 Range: +/- 1.54V/V/(oC)2 (input referred)

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