Rainbow Electronics MAX977 - Manual (Page 4)

MAX975/MAX977
Single/Dual, +3V/+5V Dual-Speed
Comparators with Auto-Standby
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V CC = +2.7V to +5.25V, specifications are for high-speed mode, T A = -40°C to +85°C, unless otherwise noted. Typical values are at
T
A
= +25°C.) (Note 1)
CONDITIONS
(Note 9)
10mV overdrive (Note 10)
µs
(Note 8)
3
t ASB Auto-Standby Timeout
t ASBE
UNITS MIN TYP MAX SYMBOL PARAMETER
Auto-Standby Enable Time
µs 2 4 t ASD Auto-Standby Wake-Up Time
10mV overdrive (Note 11)
(Note 12)
µs 1.6 t PWD
Auto-Standby Wake-Up Input
or LP Pulse Width
µs 0.8 t
ASCD
Auto-Standby Comparator
Disable
(Note 13) µs 3 t
LPE
Low-Power Enable Time
(Note 14) µs 1.1 4 t HSE High-Speed Enable Time
(Note 15) µs 0.7 t LPCD Low-Power Comparator Disable
(Note 16) ns 20 t
LPSH
Low-Power STAT_ High
AUTO-STANDBY/LOW-POWER TIMING (Note 7; Figure 2)
Note 7: Timing specifications are guaranteed by design.
Note 8: Set by 1000pF external capacitor at the STO_ pin. t
ASB
is defined as the time from last input transition to STAT_ = high.
Does not include time to go into standby condition (t ASBE) .
Note 9: t ASBE is defined as the time from when STAT_ goes high to when the supply current drops to 5
µ
A.
Note 10: t ASD is defined as the time from the last input transition to when STAT_ goes low. The comparator is in high-speed mode
before STAT_ is low.
Note 11: t PWD is defined as the minimum input or LP pulse width to trigger fast-mode operation from auto-standby.
Note 12: t
ASCD
is defined as the time from the last input transition to when the supply current increases to 300 µ A.
Note 13: t LPE is defined as the time from when LP is driven high to when the supply current drops to 5
µ
A.
Note 14: t HSE is defined as the time from when LP goes low to when STAT goes low. The comparator is in high-speed mode before
STAT_ is low.
Note 15: t LPCD is defined as the time from when LP goes low to when the supply current increases to 300
µ
A.
Note 16: t LPSH is defined as the time from when LP goes high to when STAT_ goes high.
ms 5 10 16