MAX975 Datasheet, PDF (4/16 Pages) Maxim Integrated Products – Single/Dual, +3V/+5V Dual-Speed Comparators with Auto-Standby

Single/Dual, +3V/+5V Dual-Speed
Comparators with Auto-Standby
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)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
AUTO-STANDBY/LOW-POWER TIMING (Note 7; Figure 2)
Auto-Standby Timeout
t_ASB (Note 8)
5
10
16
ms
Auto-Standby Enable Time
Auto-Standby Wake-Up Time
t_ASBE
t_ASD
(Note 9)
10mV overdrive (Note 10)
3
µs
2
4
µs
Auto-Standby Wake-Up Input
or LP Pulse Width
t_PWD 10mV overdrive (Note 11)
1.6
µs
Auto-Standby Comparator
Disable
t_ASCD (Note 12)
0.8
µs
Low-Power Enable Time
High-Speed Enable Time
Low-Power Comparator Disable
Low-Power STAT_ High
t_LPE
t_HSE
t_LPCD
t_LPSH
(Note 13)
(Note 14)
(Note 15)
(Note 16)
3
µs
1.1
4
µs
0.7
µs
20
ns
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 5µA.
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 300µA.
Note 13: t_LPE is defined as the time from when LP is driven high to when the supply current drops to 5µA.
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 300µA.
Note 16: t_LPSH is defined as the time from when LP goes high to when STAT_ goes high.
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