Document 38-08036 Rev. *D Page 18 of 30
DC Analog enCoRe III Block Specifications
The following table lists guaranteed maximum and minimum specifications for the voltage and temperature ranges: 4.75V to 5.25V
and 0°C <
T
A
< 70°C, or 3.0V to 3.6V and 0°C < T
A
< 70°C, respectively. Typical parameters apply to 5V and 3.3V at 25°C and are
for design guidance only.
– RefLo = BandGap BG – 0.06 BG BG + 0.06 V
– RefLo = 2 x BandGap – P2[6] (P2[6] =
1.3V)
2 x BG – P2[6] –
0.084
2 x BG – P2[6] + 0.025 2 x BG – P2[6] + 0.134 V
– RefLo = P2[4] – BandGap (P2[4] =
Vdd/2)
P2[4] – BG – 0.056 P2[4] – BG + 0.026 P2[4] – BG + 0.107 V
– RefLo = P2[4]-P2[6] (P2[4] = Vdd/2,
P2[6] = 1.3V)
P2[4] – P2[6] – 0.057 P2[4] – P2[6] + 0.026 P2[4] – P2[6] + 0.110 V
Table 13. 5V DC Analog Reference Specifications (continued)
Parameter Description Min Typ Max Unit
Table 14. 3.3V DC Analog Reference Specifications
Parameter Description Min Typ Max Unit
BG Bandgap Voltage Reference 1.28 1.30 1.32 V
– AGND = Vdd/2
[3]
Vdd/2 – 0.03 Vdd/2 – 0.01 Vdd/2 + 0.005 V
– AGND = 2 x BandGap
[3]
Not Allowed
– AGND = P2[4] (P2[4] = Vdd/2) P2[4] – 0.008 P2[4] + 0.001 P2[4] + 0.009 V
– AGND = BandGap
[3]
BG – 0.009 BG + 0.005 BG + 0.015 V
– AGND = 1.6 x BandGap
[3]
1.6 x BG – 0.027 1.6 x BG – 0.010 1.6 x BG + 0.018 V
– AGND Column to Column Variation
(AGND = Vdd/2)
[3]
–0.034 0.000 0.034 V
– RefHi = Vdd/2 + BandGap Not Allowed
– RefHi = 3 x BandGap Not Allowed
– RefHi = 2 x BandGap + P2[6]
(P2[6] = 0.5V)
Not Allowed
– RefHi = P2[4] + BandGap
(P2[4] = Vdd/2)
Not Allowed
– RefHi = P2[4] + P2[6] (P2[4] = Vdd/2,
P2[6] = 0.5V)
P2[4] + P2[6] – 0.075 P2[4] + P2[6] – 0.009 P2[4] + P2[6] + 0.057 V
– RefHi = 3.2 x BandGap Not Allowed
– RefLo = Vdd/2 – BandGap Not Allowed
– RefLo = BandGap Not Allowed
– RefLo = 2 x BandGap - P2[6]
(P2[6] = 0.5V)
Not Allowed
– RefLo = P2[4] – BandGap
(P2[4] = Vdd/2)
Not Allowed
– RefLo = P2[4]-P2[6] (P2[4] = Vdd/2,
P2[6] = 0.5V)
P2[4] – P2[6] – 0.048 P2[4] – P2[6] + 0.022 P2[4] – P2[6] + 0.092 V
Table 15. DC Analog enCoRe III Block Specifications
Parameter Description Min Typ Max Unit Notes
R
CT
Resistor Unit Value (Continuous Time) – 12.2 – kΩ
C
SC
Capacitor Unit Value (Switched
Capacitor)
–80–fF
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