Micropower / Low-Voltage / SOT23 / Rail-to-Rail I/O Comparators - Maxim
Description
MAX985/MAX986/MAX989/
MAX990/MAX993/MAX994
Micropower, Low-Voltage, UCSP/SC70, Rail-to-Rail I/O Comparators
General Description
The MAX985/MAX986/MAX989/MAX990/MAX993/ MAX994 single/dual/quad micropower comparators feature low-voltage operation and rail-to-rail inputs and outputs.
Their operating voltages range from 2.
5V to 5.
5V, making them ideal for both 3V and 5V systems.
These comparators also operate with ±1.
25V to ±2.
75V dual supplies.
They consume only 11µA of supply current while achieving a 300ns propagation delay.
Input bias current is typically 1.
0pA, and input offset voltage is typically 0.
5mV.
Internal hysteresis ensures clean output switching, even with slow-moving input signals.
The output stage’s unique design limits supply-current surges while switching, virtually eliminating the supply glitches typical of many other comparators.
The MAX985/MAX989/MAX993 have a push-pull output stage that sinks as well as sources current.
Large internal output drivers allow rail-to-rail output swing with loads up to 8mA.
The MAX986/MAX990/MAX994 have an open-drain output stage that can be pulled beyond VCC to 6V (max) above VEE.
These open-drain versions are ideal for level translators and bipolar to singleended converters.
The single MAX985 is available in a chip-scale package (UCSP™), significantly reducing the required PC board area.
The single MAX985/MAX986 are available in 5-pin SC70 packages and the dual MAX989/MAX990 are available in 8-pin SOT23 packages.
Selector Guide
PART
MAX985 MAX986 MAX989 MAX990 MAX993 MAX994
COMPARATORS PER PACKAGE
1 1 2 2 4 4
OUTPUT STAGE
Push-Pull Open-Drain
Push-Pull Open-Drain
Push-Pull Open-Drain
____________________________Features
o 11µA Quiescent Supply Current
o 2.
5V to 5.
5V Single-Supply Operation
o Common-Mode Input Voltage Range Extends 250mV Beyond the Rails
o 300ns Propagation Delay
o Push-Pull Output Stage Sinks and Sources 8mA Current (MAX985/MAX989/MAX993)
o Open-Drain Output Voltage Extends Beyond VCC (MAX986/M...
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