Document Number: 001-53754 Rev. *F Page 21 of 50
0b010 RefPower = high
Opamp bias = high
V
REFHI
Ref High V
DD
V
DD
– 0.037 V
DD
– 0.007 V
DD
V
V
AGND
AGND V
DD
/2 V
DD
/2 – 0.036 V
DD
/2 – 0.001 V
DD
/2 + 0.036 V
V
REFLO
Ref Low V
SS
V
SS
V
SS
+ 0.005 V
SS
+ 0.029 V
RefPower = high
Opamp bias = low
V
REFHI
Ref High V
DD
V
DD
– 0.034 V
DD
– 0.006 V
DD
V
V
AGND
AGND V
DD
/2 V
DD
/2 – 0.036 V
DD
/2 – 0.001 V
DD
/2 + 0.035 V
V
REFLO
Ref Low V
SS
V
SS
V
SS
+ 0.004 V
SS
+ 0.024 V
RefPower = medium
Opamp bias = high
V
REFHI
Ref High V
DD
V
DD
– 0.032 V
DD
– 0.005 V
DD
V
V
AGND
AGND V
DD
/2 V
DD
/2 – 0.036 V
DD
/2 – 0.001 V
DD
/2 + 0.035 V
V
REFLO
Ref Low V
SS
V
SS
V
SS
+ 0.003 V
SS
+ 0.022 V
RefPower = medium
Opamp bias = low
V
REFHI
Ref High V
DD
V
DD
– 0.031 V
DD
– 0.005 V
DD
V
V
AGND
AGND V
DD
/2 V
DD
/2 – 0.037 V
DD
/2 – 0.001 V
DD
/2 + 0.035 V
V
REFLO
Ref Low V
SS
V
SS
V
SS
+ 0.003 V
SS
+ 0.020 V
0b011 RefPower = high
Opamp bias = high
V
REFHI
Ref High 3 × Bandgap 3.760 3.884 4.006 V
V
AGND
AGND 2 × Bandgap 2.522 2.593 2.669 V
V
REFLO
Ref Low Bandgap 1.252 1.299 1.342 V
RefPower = high
Opamp bias = low
V
REFHI
Ref High 3 × Bandgap 3.766 3.887 4.010 V
V
AGND
AGND 2 × Bandgap 2.523 2.594 2.670 V
V
REFLO
Ref Low Bandgap 1.252 1.297 1.342 V
RefPower = medium
Opamp bias = high
V
REFHI
Ref High 3 × Bandgap 3.769 3.888 4.013 V
V
AGND
AGND 2 × Bandgap 2.523 2.594 2.671 V
V
REFLO
Ref Low Bandgap 1.251 1.296 1.343 V
RefPower = medium
Opamp bias = low
V
REFHI
Ref High 3 × Bandgap 3.769 3.889 4.015 V
V
AGND
AGND 2 × Bandgap 2.523 2.595 2.671 V
V
REFLO
Ref Low Bandgap 1.251 1.296 1.344 V
0b100 RefPower = high
Opamp bias = high
V
REFHI
Ref High 2 × Bandgap + P2[6]
(P2[6] = 1.3 V)
2.483 – P2[6] 2.582 – P2[6] 2.674 – P2[6] V
V
AGND
AGND 2 × Bandgap 2.522 2.593 2.669 V
V
REFLO
Ref Low 2 × Bandgap – P2[6]
(P2[6] = 1.3 V)
2.524 – P2[6] 2.600 – P2[6] 2.676 – P2[6] V
RefPower = high
Opamp bias = low
V
REFHI
Ref High 2 × Bandgap + P2[6]
(P2[6] = 1.3 V)
2.490 – P2[6] 2.586 – P2[6] 2.679 – P2[6] V
V
AGND
AGND 2 × Bandgap 2.523 2.594 2.669 V
V
REFLO
Ref Low 2 × Bandgap – P2[6]
(P2[6] = 1.3 V)
2.523 – P2[6] 2.598 – P2[6] 2.675 – P2[6] V
RefPower = medium
Opamp bias = high
V
REFHI
Ref High 2 × Bandgap + P2[6]
(P2[6] = 1.3 V)
2.493 – P2[6] 2.588 – P2[6] 2.682 – P2[6] V
V
AGND
AGND 2 × Bandgap 2.523 2.594 2.670 V
V
REFLO
Ref Low 2 × Bandgap – P2[6]
(P2[6] = 1.3 V)
2.523 – P2[6] 2.597 – P2[6] 2.675 – P2[6] V
RefPower = medium
Opamp bias = low
V
REFHI
Ref High 2 × Bandgap + P2[6]
(P2[6] = 1.3 V)
2.494 – P2[6] 2.589 – P2[6] 2.685 – P2[6] V
V
AGND
AGND 2 × Bandgap 2.523 2.595 2.671 V
V
REFLO
Ref Low 2 × Bandgap – P2[6]
(P2[6] = 1.3 V)
2.522 – P2[6] 2.596 – P2[6] 2.676 – P2[6] V
Table 12. 5-V DC Analog Reference Specifications (continued)
Reference
ARF_CR
[5:3]
Reference Power
Settings
Symbol Reference Description Min Typ Max Units
(21 strony)
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