19-1266; Rev 2; 1/07
High-Speed, Micropower, Low-Voltage,
SOT23, Rail-to-Rail I/O Comparators
MAX996 single/dual/quad micropower comparators
feature low-voltage operation and rail-to-rail inputs and
outputs. Their operating voltage ranges 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 48µA per compara-
tor while achieving a 120ns propagation delay.
Input bias current is typically 1.0pA, and input offset volt-
age 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
MAX987/MAX991/MAX995 have a push-pull output
stage that sinks as well as sources current. Large inter-
nal output drivers allow rail-to-rail output swing with
loads up to 8mA. The MAX988/MAX992/MAX996 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 single-
The single MAX987/MAX988 are available in tiny 5-pin
SC70 packages, while the dual MAX991/MAX992 are
available in ultra-small 8-pin SOT23 and µMAX® pack-
♦ 120ns Propagation Delay
♦ 48µA Quiescent Supply Current
♦ +2.5V to +5.5V Single-Supply Operation
♦ Common-Mode Input Voltage Range Extends
250mV Beyond the Rails
♦ Push-Pull Output Stage Sinks and Sources
8mA Current (MAX987/MAX991/MAX995)
♦ Open-Drain Output Voltage Extends Beyond VCC
♦ Unique Output Stage Reduces Output Switching
Current, Minimizing Overall Power Consumption
♦ 100µA Supply Current at 1MHz Switching
♦ No Phase Reversal for Overdriven Inputs
♦ Available in Space-Saving Packages:
5-Pin SOT23 (MAX987/MAX988)
8-Pin µMAX (MAX991/MAX992)
MAX987EXK-T 5 SC70-5
MAX987EUK-T 5 SOT23-5
Ordering Information continued at end of data sheet.
Note: All devices specified over the -40°C to +85°C operating
Typical Application Circuit appears at end of data sheet.
Digital Line Receivers
µMAX is a registered trademark of Maxim Integrated Products,
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.