Cypress Semiconductor CY8C24894 Spezifikationen PDF herunterladen (Seite 22)

CY8C24894

Document Number: 001-53754 Rev. *F Page 22 of 50

0b101 RefPower = high

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] + 1.354 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] – 1.335 P2[4] – 1.294 P2[4] – 1.237 V

RefPower = high

Opamp bias = low

V

REFHI

Ref High P2[4] + Bandgap

(P2[4] = V

DD

/2)

P2[4] + 1.221 P2[4] + 1.293 P2[4] + 1.358 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] – 1.337 P2[4] – 1.297 P2[4] – 1.243 V

RefPower = medium

Opamp bias = high

V

REFHI

Ref High P2[4] + Bandgap

(P2[4] = V

DD

/2)

P2[4] + 1.222 P2[4] + 1.294 P2[4] + 1.360 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] – 1.338 P2[4] – 1.298 P2[4] – 1.245 V

RefPower = medium

Opamp bias = low

V

REFHI

Ref High P2[4] + Bandgap

(P2[4] = V

DD

/2)

P2[4] + 1.221 P2[4] + 1.294 P2[4] + 1.362 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] – 1.340 P2[4] – 1.298 P2[4] – 1.245 V

0b110 RefPower = high

Opamp bias = high

V

REFHI

Ref High 2 × Bandgap 2.513 2.593 2.672 V

V

AGND

AGND Bandgap 1.264 1.302 1.340 V

V

REFLO

Ref Low V

SS

V

SS

V

SS

+ 0.008 V

SS

+ 0.038 V

RefPower = high

Opamp bias = low

V

REFHI

Ref High 2 × Bandgap 2.514 2.593 2.674 V

V

AGND

AGND Bandgap 1.264 1.301 1.340 V

V

REFLO

Ref Low V

SS

V

SS

V

SS

+ 0.005 V

SS

+ 0.028 V

RefPower = medium

Opamp bias = high

V

REFHI

Ref High 2 × Bandgap 2.514 2.593 2.676 V

V

AGND

AGND Bandgap 1.264 1.301 1.340 V

V

REFLO

Ref Low V

SS

V

SS

V

SS

+ 0.004 V

SS

+ 0.024 V

RefPower = medium

Opamp bias = low

V

REFHI

Ref High 2 × Bandgap 2.514 2.593 2.677 V

V

AGND

AGND Bandgap 1.264 1.300 1.340 V

V

REFLO

Ref Low V

SS

V

SS

V

SS

+ 0.003 V

SS

+ 0.021 V

0b111 RefPower = high

Opamp bias = high

V

REFHI

Ref High 3.2 × Bandgap 4.028 4.144 4.242 V

V

AGND

AGND 1.6 × Bandgap 2.028 2.076 2.125 V

V

REFLO

Ref Low V

SS

V

SS

V

SS

+ 0.008 V

SS

+ 0.034 V

RefPower = high

Opamp bias = low

V

REFHI

Ref High 3.2 × Bandgap 4.032 4.142 4.245 V

V

AGND

AGND 1.6 × Bandgap 2.029 2.076 2.126 V

V

REFLO

Ref Low V

SS

V

SS

V

SS

+ 0.005 V

SS

+ 0.025 V

RefPower = medium

Opamp bias = high

V

REFHI

Ref High 3.2 × Bandgap 4.034 4.143 4.247 V

V

AGND

AGND 1.6 × Bandgap 2.029 2.076 2.126 V

V

REFLO

Ref Low V

SS

V

SS

V

SS

+ 0.004 V

SS

+ 0.021 V

RefPower = medium

Opamp bias = low

V

REFHI

Ref High 3.2 × Bandgap 4.036 4.144 4.249 V

V

AGND

AGND 1.6 × Bandgap 2.029 2.076 2.126 V

V

REFLO

Ref Low V

SS

V

SS

V

SS

+ 0.003 V

SS

+ 0.019 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

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 49 50

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