Cypress CY8C24423A AC Low Power Comparator Specifications, Typical Agnd Noise with P24 Bypass

CY8C24223A, CY8C24423A

AC Low Power Comparator Specifications

The following tables list guaranteed maximum and minimum specifications for the voltage and temperature ranges: 4.75V to 5.25V and -40°C ≤ TA ≤ 125°C. Typical parameters apply to 5V at 25°C and are for design guidance only.

Table 23. AC Low Power Comparator Specifications

Symbol	Description	Min	Typ	Max	Units	Notes
TRLPC	LPC response time	–	–	50	μs	≥ 50 mV overdrive comparator
						reference set within VREFLPC.

When bypassed by a capacitor on P2[4], the noise of the analog ground signal distributed to each block is reduced by a factor of up to 5 (14 dB). This is at frequencies above the corner frequency defined by the on-chip 8.1k resistance and the external capacitor.

Figure 14. Typical AGND Noise with P2[4] Bypass

dBV/rtHz
10000						0
						0.01
						0.1
						1.0
						10
1000
100
0.001	0.01	0.1	Freq (kHz)	1	10	100

At low frequencies, the opamp noise is proportional to 1/f, power independent, and determined by device geometry. At high frequencies, increased power level reduces the noise spectrum level.

		Figure 15. Typical Opamp Noise
nV/rtHz
10000						PH_BH
						PH_BL
						PM_BL
						PL_BL
1000
100
10
0.001	0.01	0.1	Freq (kHz)	1	10	100
Document Number: 3-12029 Rev. *E						Page 24 of 31

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