MAX968ESA+T Maxim Integrated Products, MAX968ESA+T Datasheet - Page 7

• Manufacturer Part Number: MAX968ESA+T
• Description: IC COMPARATOR R-R 8-SOIC
• Manufacturer: Maxim Integrated Products
• Type: Windowr

Specifications of MAX968ESA+T

• Number Of Elements: 2
• Output Type: Open-Drain, Rail-to-Rail
• Voltage - Supply: 1.6 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The MAX965–MAX970 single/dual/quad, micropower,
ultra-low-voltage comparators feature rail-to-rail inputs
and outputs and an internal 1.235V ±1.5% bandgap
reference. These devices operate from a single +1.6V
to +5.5V supply voltage range, and consume less than
5µA supply current per comparator over the extended
temperature range. Internal hysteresis is programmable
up to ±50mV using two external resistors and the
device’s internal reference. The rail-to-rail input com-
mon-mode voltage range and the open-drain outputs
allow easy voltage-level conversion for multivoltage
systems. All inputs and outputs can tolerate a continu-
ous short-circuit fault condition to either rail.
The MAX965 is a single comparator with adjustable
hysteresis and a reference output pin. The MAX966 is a
dual comparator without the reference and without
adjustable hysteresis. The MAX967 is a dual compara-
MAX969/MAX970
_______________Detailed Description
________________________________________________Pin Descriptions (continued)
Ultra-Low-Voltage, Rail-to-Rail I/O Comparators
MAX969
10
11
12
13
14
15
16
—
1
2
3
4
5
6
7
8
9
PIN
SO
10
11
12
13
14
_______________________________________________________________________________________
—
—
—
1
2
3
4
5
6
7
8
9
MAX970
QSOP
8, 9
—
—
10
11
12
13
14
15
16
1
2
3
4
5
6
7
NAME
OUTB
OUTA
OUTD
OUTC
HYST
INC+
IND+
INA+
INB+
GND
VCC
INA-
INB-
N.C.
INC-
IND-
REF
Single/Dual/Quad, Micropower,
Comparator B Open-Drain Output
Comparator A Open-Drain Output
Positive Supply Voltage, +1.6V to +5.5V
Comparator A Inverting Input
Comparator A Noninverting Input
Comparator B Inverting Input
Comparator B Noninverting Input
No Connection. Not internally connected.
Internal Reference Output. Typically 1.235V with respect to GND.
Hysteresis Input. Connect to REF if not used. Input voltage range is
from (V
Comparator C Inverting Input
Comparator C Noninverting Input
Comparator D Inverting Input
Comparator D Noninverting Input
Ground
Comparator D Open-Drain Output
Comparator C Open-Drain Output
REF
tor configured as a dual voltage monitor with common
hysteresis adjustment and a reference output. The dual
MAX968 is similar to the MAX967, but is configured as
a window comparator. The MAX969 is a quad com-
parator with a common hysteresis adjustment and a ref-
erence output pin. The MAX970 is a quad comparator
without a reference and without hysteresis adjustment.
(See Functional Diagrams and Selector Guide.)
The MAX965–MAX970 have a -0.25V to V
mon-mode range. Both comparator inputs may operate
at any differential voltage within the common-mode
voltage range, and the comparator displays the correct
output logic state.
The minimum operating voltage is 1.6V. As the supply
voltage falls below 1.6V, performance degrades
and supply current falls. The reference does not
- 50mV) to V
Low-Voltage Operation: V
REF
.
FUNCTION
Comparator Input
CC
Down to 1V
CC
input com-
7