Product Specifications

CY8C29466/CY8C29566
CY8C29666/CY8C29866
Document Number: 38-12013 Rev. AB Page 33 of 67
Table 22. 3.3-V DC Analog Reference Specifications
Reference
ARF_CR[5:3]
Reference Power
Settings
Symbol Reference Description Min Typ Max Unit
0b000
RefPower = High
Opamp bias = High
V
REFHI
Ref High
V
DD
/2 + BandGap V
DD
/2 + 1.225 V
DD
/2 + 1.292 V
DD
/2 + 1.361 V
V
AGND
AGND
V
DD
/2 V
DD
/2 – 0.067 V
DD
/2 – 0.002 V
DD
/2 + 0.063 V
V
REFLO
Ref Low
V
DD
/2 – BandGap V
DD
/2 – 1.35 V
DD
/2 – 1.293 V
DD
/2 – 1.210 V
RefPower = High
Opamp bias = Low
V
REFHI
Ref High
V
DD
/2 + BandGap V
DD
/2 + 1.218 V
DD
/2 + 1.294 V
DD
/2 + 1.370 V
V
AGND
AGND
V
DD
/2 V
DD
/2 – 0.038 V
DD
/2 – 0.001 V
DD
/2 + 0.035 V
V
REFLO
Ref Low
V
DD
/2 – BandGap V
DD
/2 – 1.329 V
DD
/2 – 1.296 V
DD
/2 – 1.259 V
RefPower = Med
Opamp bias = High
V
REFHI
Ref High
V
DD
/2 + BandGap V
DD
/2 + 1.221 V
DD
/2 + 1.294 V
DD
/2 + 1.366 V
V
AGND
AGND
V
DD
/2 V
DD
/2 – 0.050 V
DD
/2 – 0.002 V
DD
/2 + 0.046 V
V
REFLO
Ref Low
V
DD
/2 – BandGap V
DD
/2 – 1.331 V
DD
/2 – 1.296 V
DD
/2 – 1.260 V
RefPower = Med
Opamp bias = Low
V
REFHI
Ref High
V
DD
/2 + BandGap V
DD
/2 + 1.226 V
DD
/2 + 1.295 V
DD
/2 + 1.365 V
V
AGND
AGND
V
DD
/2 V
DD
/2 – 0.028 V
DD
/2 – 0.001 V
DD
/2 + 0.025 V
V
REFLO
Ref Low
V
DD
/2 – BandGap V
DD
/2 – 1.329 V
DD
/2 – 1.297 V
DD
/2 – 1.262 V
0b001
RefPower = High
Opamp bias = High
V
REFHI
Ref High
P2[4]+P2[6] (P2[4]
= V
DD
/2, P2[6] =
0.5 V)
P2[4] + P2[6] –
0.098
P2[4] + P2[6] –
0.018
P2[4] + P2[6] +
0.055
V
V
AGND
AGND
P2[4] P2[4] P2[4] P2[4] –
V
REFLO
Ref Low
P2[4] – P2[6] (P2[4]
= V
DD
/2, P2[6] =
0.5 V)
P2[4] – P2[6] –
0.055
P2[4] – P2[6] +
0.013
P2[4] – P2[6] +
0.086
V
RefPower = High
Opamp bias = Low
V
REFHI
Ref High
P2[4] + P2[6] (P2[4]
= V
DD
/2, P2[6] =
0.5 V)
P2[4] + P2[6] –
0.082
P2[4] + P2[6] –
0.011
P2[4] + P2[6] +
0.050
V
V
AGND
AGND
P2[4] P2[4] P2[4] P2[4] –
V
REFLO
Ref Low
P2[4] – P2[6] (P2[4]
= V
DD
/2, P2[6] =
0.5 V)
P2[4] – P2[6] –
0.037
P2[4] – P2[6] +
0.006
P2[4] – P2[6] +
0.054
V
RefPower = Med
Opamp bias = High
V
REFHI
Ref High
P2[4] + P2[6] (P2[4]
= V
DD
/2, P2[6] =
0.5 V)
P2[4] + P2[6] –
0.079
P2[4] + P2[6] –
0.012
P2[4] + P2[6] +
0.047
V
V
AGND
AGND
P2[4] P2[4] P2[4] P2[4] –
V
REFLO
Ref Low
P2[4]–P2[6] (P2[4]
= V
DD
/2, P2[6] =
0.5 V)
P2[4] – P2[6] –
0.038
P2[4] – P2[6] +
0.006
P2[4] – P2[6] +
0.057
V
RefPower = Med
Opamp bias = Low
V
REFHI
Ref High
P2[4]+P2[6] (P2[4]
= V
DD
/2, P2[6] =
0.5 V)
P2[4] + P2[6] –
0.080
P2[4] + P2[6] –
0.008
P2[4] + P2[6] +
0.055
V
V
AGND
AGND
P2[4] P2[4] P2[4] P2[4] –
V
REFLO
Ref Low
P2[4]–P2[6] (P2[4]
= V
DD
/2, P2[6] =
0.5 V)
P2[4] – P2[6] –
0.032
P2[4] – P2[6] +
0.003
P2[4] – P2[6] +
0.042
V