Cypress CY8CNP102B Manual De Usuario

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PRELIMINARY
CY8CNP102B, CY8CNP102E
Document #: 001-43991 Rev. *D
Page 25 of 38
DC Analog Output Buffer Specifications
DC Analog Reference Specifications
The guaranteed specifications are measured through the Analog Continuous Time PSoC blocks. The power levels for AGND refer to
the power of the Analog Continuous Time PSoC block. The power levels for RefHi and RefLo refer to the Analog Reference Control
register. The limits stated for AGND include the offset error of the AGND buffer local to the Analog Continuous Time PSoC block.
Reference control power is high.
Table 28.   5V DC Analog Output Buffer Specifications (CY8CNP102E)
Symbol
Description
Min
Typ
Max
Units
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
Vcc - 1.0
V
R
OUTOB
Output Resistance
Power = Low
1
Ω
Power = High
1
Ω
V
OHIGHOB
High Output Voltage Swing (Load = 32 ohms to Vcc/2)
Power = Low
0.5 x Vcc
 
+ 1.3
V
Power = High
0.5 x Vcc
 
+ 1.3
V
V
OLOWOB
Low Output Voltage Swing (Load = 32 ohms to Vcc/2)
Power = Low
0.5 x Vcc
 
- 1.3
V
Power = High
0.5 x Vcc
 
- 1.3
V
I
SOB
Supply Current Including Bias Cell (No Load)
Power = Low
1.1
2
mA
Power = High
2.6
5
mA
PSRR
OB
Supply Voltage Rejection Ratio
40
64
dB
Table 29.   5V DC Analog Reference Specifications (CY8CNP102E) 
Symbol
Description
Min
Typ
Max
Units
V
BG5
Bandgap Voltage Reference 5V
1.28
1.30
1.32
V
AGND = Vcc/2
[1]
Vcc/2 - 0.02
Vcc/2
Vcc/2 + 0.02
V
AGND = 2 x BandGap
2.52
2.60
2.72
V
AGND = P2[4] (P2[4] = Vcc/2)
P2[4] - 0.013
P2[4]
P2[4] + 0.013
V
AGND = BandGap
1.27
1.3
1.34
V
AGND = 1.6 x BandGap
2.03
2.08
2.13
V
AGND Block to Block Variation (AGND = Vcc/2)
-0.034
0.000
0.034
V
RefHi = Vcc/2 + BandGap
Vcc
/2 + 1.21
Vcc
/2 + 1.3
Vcc
/2 + 1.382
V
RefHi = 3 x BandGap
3.75
3.9
4.05
V
RefHi = 2 x BandGap + P2[6] (P2[6] = 1.3V)
P2[6] + 2.478
P2[6] + 2.6
P2[6] + 2.722
V
RefHi = P2[4] + BandGap (P2[4] = Vcc/2)
P2[4] + 1.218
P2[4] + 1.3
P2[4] + 1.382
V
RefHi = P2[4] + P2[6] (P2[4] = Vcc/2, P2[6] = 1.3V)
P2[4] + P2[6] - 0.058 P2[4] + P2[6] P2[4] + P2[6] + 0.058
V
RefHi = 2 x BandGap
2.50
2.60
2.70
V
RefHi = 3.2 x BandGap
4.02
4.16
4.29
V
RefLo = Vcc/2 – BandGap
Vcc
/2 - 1.369
Vcc
/2 - 1.30
Vcc
/2 - 1.231
V
RefLo = BandGap
1.20
1.30
1.40
V
RefLo = 2 x BandGap - P2[6] (P2[6] = 1.3V)
2.489 - P2[6]
2.6 - P2[6]
2.711 - P2[6]
V
RefLo = P2[4] – BandGap (P2[4] = Vcc/2)
P2[4] - 1.368
P2[4] - 1.30
P2[4] - 1.232
V
RefLo = P2[4]-P2[6] (P2[4] = Vcc/2, P2[6] = 1.3V)
P2[4] - P2[6] - 0.042 P2[4] - P2[6] P2[4] - P2[6] + 0.042
V