19-1226; Rev 3; 2/07
Single/Dual/Quad, Micropower,
Ultra-Low-Voltage, Rail-to-Rail I/O Comparators
____________________________Features
The MAX965–MAX970 single/dual/quad micropower
comparators feature rail-to-rail inputs and outputs, and
fully specified single-supply operation down to +1.6V.
These devices draw less than 5µA per comparator and
have open-drain outputs that can be pulled beyond VCC
to 6V (max) above ground. In addition, their rail-to-rail
input common-mode voltage range makes these comparators suitable for ultra-low-voltage operation.
A +1.6V to +5.5V single-supply operating voltage range
makes the MAX965 family of comparators ideal for 2-cell
battery-powered applications. The MAX965/MAX967/
MAX968/MAX969 offer programmable hysteresis and
an internal 1.235V ±1.5% reference. All devices are
available in either space-saving 8-pin µMAX® or 16-pin
QSOP packages.
♦ Ultra-Low Single-Supply Operation down to +1.6V
♦ Rail-to-Rail Common-Mode Input Voltage Range
♦ 3µA Quiescent Supply Current per Comparator
♦ Open-Drain Outputs Swing Beyond VCC
♦ 1.235V ±1.5% Precision Internal Reference
(MAX965/967/968/969)
♦ 10µs Propagation Delay (50mV overdrive)
♦ Available in Space-Saving Packages:
8-Pin µMAX (MAX965–MAX968)
16-Pin QSOP (MAX969/MAX970)
Ordering Information
________________________Applications
2-Cell Battery-Powered/Portable Systems
Window Comparators
Threshold Detectors/Discriminators
Mobile Communications
Voltage-Level Translation
Ground/Supply-Sensing Applications
PART
PINPACKAGE
TEMP RANGE
PKG
CODE
-40°C to +85°C
8 SO
S8-2
MAX965EUA-T
-40°C to +85°C
8 µMAX-8
U8-1
MAX966ESA
-40°C to +85°C
8 SO
S8-2
MAX966EUA-T
-40°C to +85°C
8 µMAX-8
U8-1
MAX967ESA
-40°C to +85°C
8 SO
S8-2
MAX967EUA-T
-40°C to +85°C
8 µMAX-8
U8-1
MAX965ESA
Ordering Information continued on last page.
Pin Configurations appear at end of data sheet.
PART
INTERNAL
REFERENCE
COMPARATORS
PER
PACKAGE
PROGRAMMABLE
HYSTERESIS
_____________________Selector Guide
MAX965
Yes
1
Yes
µMAX is a registered trademark of Maxim Integrated Products,
Inc.
__________Typical Operating Circuit
VIN
VCC
7
MAX966
No
2
VCC
3 IN+
RPULLUP
OUT
No
8
VOUT
4 IN-
MAX967
Yes
2
Yes
MAX968
Yes
2
Yes
5 HYST
6 REF
MAX965
1.235V
MAX969
Yes
4
GND
Yes
1
MAX970
No
4
No
________________________________________________________________ Maxim Integrated Products
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.
1
MAX965–MAX970
General Description
