Cypress enCoRe CY7C64215 - Manual (Page 17)

CY7C64215
Document 38-08036 Rev. *C Page 17 of 30
DC Analog Reference Specifications
The following tables list 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.
Table 12. 3.3V DC Analog Output Buffer Specifications
Parameter Description Min Typ Max Unit Notes
V
OSOB
Input Offset Voltage (Absolute Value) – 3 12 mV
TCV
OSOB
Average Input Offset Voltage Drift – +6 –
μV/°C
V
CMOB
Common-Mode Input Voltage Range 0.5 - Vdd - 1.0 V
R
OUTOB
Output Resistance
Power = Low
Power = High
–
– 1
1 –
– W
W
V
OHIGHOB
High Output Voltage Swing
(Load = 1K ohms to Vdd/2)
Power = Low
Power = High
0.5 x Vdd + 1.0
0.5 x Vdd + 1.0
–
– –
– V
V
V
OLOWOB
Low Output Voltage Swing
(Load = 1K ohms to Vdd/2)
Power = Low
Power = High
–
– –
– 0.5 x Vdd – 1.0
0.5 x Vdd – 1.0
V
V
I
SOB
Supply Current Including Bias Cell (No Load)
Power = Low
Power = High
–
0.8
2.0 2.0
4.3 mA
mA
PSRR
OB
Supply Voltage Rejection Ratio 34 64 – dB (0.5 x Vdd – 1.0) < V
OUT
< (0.5 x Vdd + 0.9).
Table 13. 5V 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 – 0.04 Vdd/2 – 0.01 Vdd/2 + 0.007 V
– AGND = 2 x BandGap [3] 2 x BG – 0.048 2 x BG – 0.030 2 x BG + 0.024 V
– AGND = P2[4] (P2[4] = Vdd/2)
[3]
P2[4] – 0.011 P2[4] P2[4] + 0.011 V
– AGND = BandGap
[3]
BG – 0.009 BG + 0.008 BG + 0.016 V
– AGND = 1.6 x BandGap [3] 1.6 x BG – 0.022 1.6 x BG – 0.010 1.6 x BG + 0.018 V
– AGND Block to Block Variation
(AGND = Vdd/2)
[3]
–0.034 0.000 0.034 V
– RefHi = Vdd/2 + BandGap Vdd/2 + BG – 0.10 Vdd/2 + BG Vdd/2 + BG + 0.10 V
– RefHi = 3 x BandGap 3 x BG – 0.06 3 x BG 3 x BG + 0.06 V
– RefHi = 2 x BandGap + P2[6] (P2[6] = 1.3V) 2 x BG + P2[6] – 0.113 2 x BG + P2[6] – 0.018 2 x BG + P2[6] + 0.077 V
– RefHi = P2[4] + BandGap (P2[4] = Vdd/2) P2[4] + BG – 0.130 P2[4] + BG – 0.016 P2[4] + BG + 0.098 V
– RefHi = P2[4] + P2[6] (P2[4] = Vdd/2, P2[6]
= 1.3V) P2[4] + P2[6] – 0.133 P2[4] + P2[6] – 0.016 P2[4] + P2[6]+ 0.100 V
– RefHi = 3.2 x BandGap 3.2 x BG – 0.112 3.2 x BG 3.2 x BG + 0.076 V
– RefLo = Vdd/2 – BandGap Vdd/2 – BG – 0.04 Vdd/2 – BG + 0.024 Vdd/2 – BG + 0.04 V
– 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
Note
3. AGND tolerance includes the offsets of the local buffer in the enCoRe III block. Bandgap voltage is 1.3V ± 0.02V.
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