Specifications

CY8C24123A
CY8C24223A
CY8C24423A
Document Number: 38-12028 Rev. *V Page 32 of 71
0b100 All power settings
Not allowed at 3.3 V
––– – – ––
0b101 RefPower = high
Opamp bias = high
V
REFHI
Ref High P2[4] + Bandgap
(P2[4] = V
DD
/2)
P2[4] + 1.211 P2[4] + 1.285 P2[4] + 1.348 V
V
AGND
AGND P2[4] P2[4] P2[4] P2[4] –
V
REFLO
Ref Low P2[4] – Bandgap
(P2[4] = V
DD
/2)
P2[4] – 1.354 P2[4] – 1.290 P2[4] – 1.197 V
RefPower = high
Opamp bias = low
V
REFHI
Ref High P2[4] + Bandgap
(P2[4] = V
DD
/2)
P2[4] + 1.209 P2[4] + 1.289 P2[4] + 1.353 V
V
AGND
AGND P2[4] P2[4] P2[4] P2[4] –
V
REFLO
Ref Low P2[4] – Bandgap
(P2[4] = V
DD
/2)
P2[4] – 1.352 P2[4] – 1.294 P2[4] – 1.222 V
RefPower = medium
Opamp bias = high
V
REFHI
Ref High P2[4] + Bandgap
(P2[4] = V
DD
/2)
P2[4] + 1.218 P2[4] + 1.291 P2[4] + 1.351 V
V
AGND
AGND P2[4] P2[4] P2[4] P2[4] –
V
REFLO
Ref Low P2[4] – Bandgap
(P2[4] = V
DD
/2)
P2[4] – 1.351 P2[4] – 1.296 P2[4] – 1.224 V
RefPower = medium
Opamp bias = low
V
REFHI
Ref High P2[4] + Bandgap
(P2[4] = V
DD
/2)
P2[4] + 1.215 P2[4] + 1.292 P2[4] + 1.354 V
V
AGND
AGND P2[4] P2[4] P2[4] P2[4] –
V
REFLO
Ref Low P2[4] – Bandgap
(P2[4] = V
DD
/2)
P2[4] – 1.352 P2[4] – 1.297 P2[4] – 1.227 V
0b110 RefPower = high
Opamp bias = high
V
REFHI
Ref High 2 × Bandgap 2.460 2.594 2.695 V
V
AGND
AGND Bandgap 1.257 1.302 1.335 V
V
REFLO
Ref Low V
SS
V
SS
V
SS
+ 0.01 V
SS
+ 0.029 V
RefPower = high
Opamp bias = low
V
REFHI
Ref High 2 × Bandgap 2.462 2.592 2.692 V
V
AGND
AGND Bandgap 1.256 1.301 1.332 V
V
REFLO
Ref Low V
SS
V
SS
V
SS
+ 0.005 V
SS
+ 0.017 V
RefPower = medium
Opamp bias = high
V
REFHI
Ref High 2 × Bandgap 2.473 2.593 2.682 V
V
AGND
AGND Bandgap 1.257 1.301 1.330 V
V
REFLO
Ref Low V
SS
V
SS
V
SS
+ 0.003 V
SS
+ 0.014 V
RefPower = medium
Opamp bias = low
V
REFHI
Ref High 2 × Bandgap 2.470 2.594 2.685 V
V
AGND
AGND Bandgap 1.256 1.300 1.332 V
V
REFLO
Ref Low V
SS
V
SS
V
SS
+ 0.002 V
SS
+ 0.012 V
0b111 All power settings
Not allowed at 3.3 V
––– – – ––
Table 23. 3.3-V DC Analog Reference Specifications (continued)
Reference
ARF_CR
[5:3]
Reference Power
Settings
Symbol Reference Description Min Typ Max Units