_______________General Description
The MAX965MAX970 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 5A per comparator and
have open-drain outputs that can be pulled beyond V
CC
to 6V (max) above ground. In addition, their rail-to-rail
input common-mode voltage range makes these com-
parators 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 MAX or 16-pin
QSOP packages.
________________________Applications
2-Cell Battery-Powered/Portable Systems
Window Comparators
Threshold Detectors/Discriminators
Mobile Communications
Voltage-Level Translation
Ground/Supply-Sensing Applications
____________________________Features
o
Ultra-Low Single-Supply Operation down to +1.6V
o
Rail-to-Rail Common-Mode Input Voltage Range
o
3A Quiescent Supply Current per Comparator
o
Open-Drain Outputs Swing Beyond V
CC
o
1.235V 1.5% Precision Internal Reference
(MAX965/967/968/969)
o
10s Propagation Delay (50mV overdrive)
o
Available in Space-Saving Packages:
8-Pin MAX (MAX965MAX968)
16-Pin QSOP (MAX969/MAX970)
MAX965MAX970
Single/Dual/Quad, Micropower,
Ultra-Low-Voltage, Rail-to-Rail I/O Comparators
________________________________________________________________
Maxim Integrated Products
1
V
CC
V
OUT
7
OUT
GND
1.235V
REF
6
HYST
1
5
IN-
4
IN+
3
8
V
CC
V
IN
R
PULL-UP
MAX965
__________Typical Operating Circuit
19-1226; Rev 0; 4/97
PART
MAX965
ESA
MAX965EUA
MAX966
ESA
-40C to +85C
-40C to +85C
-40C to +85C
TEMP. RANGE
PIN-PACKAGE
8 SO
8 MAX
8 SO
______________Ordering Information
Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
MAX966EUA
-40C to +85C
8 MAX
MAX967
ESA
-40C to +85C
8 SO
MAX967EUA
-40C to +85C
8 MAX
PART
INTERNAL
REFERENCE
PROGRAMMABLE
HYSTERESIS
MAX965
Yes
Yes
MAX966
No
No
MAX967
Yes
Yes
MAX968
Yes
Yes
MAX969
Yes
Yes
MAX970
No
No
COMPARATORS
PER
PACKAGE
1
2
2
2
4
4
_____________________Selector Guide
Ordering Information continued on last page.
Pin Configurations appear at end of data sheet.
MAX965MAX970
Single/Dual/Quad, Micropower,
Ultra-Low-Voltage, Rail-to-Rail I/O Comparators
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= +1.6V to +5.5V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= 3V and T
A
= +25C.)
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Supply Voltage (V
CC
) ............................................................+6V
Voltages
IN_-, IN_+, REF, HYST ..........................-0.3V to (V
CC
+ 0.3V)
OUT_ ...............................................................-0.3V to +6.0V
Duration of OUT_ Short Circuit to GND or V
CC
..........Continuous
Continuous Power Dissipation
8-Pin SO (derate 5.88mW/C above +70C)...............471mW
8-Pin MAX (derate 4.10mW/C above +70C) ..........330mW
14-Pin SO (derate 8.33mW/C above +70C).............667mW
16-Pin SO (derate 8.70mW/C above +70C).............696mW
16-Pin QSOP (derate 5.70mW/C above +70C)........457mW
Operating Temperature Range ...........................-40C to +85C
Storage Temperature Range .............................-65C to +150C
Lead Temperature (soldering, 10sec) .............................+300C
6.0
10.0
0C to +85C
MAX
package
QSOP package
-40C to +85C
Input Offset Voltage
V
OS
-40C to +85C
0C to +85C
QSOP package
SO package
3.0
Common-mode
range = -0.25V
to 1.3V,
V
CC
> 1.8V
mV
V
-0.25
V
CC
- 0.25
T
A
= -40C to +85C
SO/QSOP packages, T
A
= -40C to +85C
Full common-mode range, T
A
= +25C
Common-mode range = -0.25V to (V
CC
- 0.25V)
All packages, T
A
= 0C to +85C
V
CC
stepped 0V to 5V
MAX970
MAX966
MAX967/MAX968
T
A
= +25C
MAX969
1.7V
V
CC
5.5V
CONDITIONS
7.0
C
IN
Input Capacitance
pF
0.2
I
OS
Input Offset Current
0.001
50
nA
0.001
5
I
B
Input Bias Current
4.0
-0.25
V
CC
V
CMR
Common-Mode Voltage Range
V
0.1
1.0
PSRR
Power-Supply Rejection Ratio
1.7
5.5
V
CC
Supply Voltage Range
V
1.6
5.5
mV/V
20
Power-Up Time
(V
CC
to output valid)
11
18
A
7.0
12
I
CC
Supply Current
6.0
10
10
16
14
22
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
4.0
15.0
10.0
Full common-
mode range
7.0
MAX package, T
A
= -40C to +85C
1.8
5.5
MAX965
Comparator Minimum
Operating Voltage
V
1.0
s
pA
HYST = REF
mV
1
V
HYST
Input Hysteresis
2
_______________________________________________________________________________________
COMPARATOR
POWER SUPPLIES
SO package
MAX
package
V
MAX965MAX970
Single/Dual/Quad, Micropower,
Ultra-Low-Voltage, Rail-to-Rail I/O Comparators
_______________________________________________________________________________________
3
3
4
-60
MAX965 SUPPLY CURRENT
vs. TEMPERATURE
MAX965-TOC1b
TEMPERATURE (C)
SUPPLY CURRENT (A)
5
7
6
8
9
10
11
12
13
-40
-20
0
20
40
60
80
100
V
IN+
> V
IN-
V
CC
= 5.0V
V
CC
= 2.0V
V
CC
= 3.0V
4.0
-60
MAX966 SUPPLY CURRENT
vs. TEMPERATURE
MAX965-TOC2b
TEMPERATURE (C)
SUPPLY CURRENT (A)
4.5
5.5
5.0
6.0
6.5
7.0
7.5
8.0
8.5
9.0
-40
-20
0
20
40
60
80
100
V
IN+
> V
IN-
V
CC
= 5.0V
V
CC
= 2.0V
V
CC
= 3.0V
5
-60
MAX967/MAX968 SUPPLY CURRENT
vs. TEMPERATURE
MAX965-TOC3b
TEMPERATURE (C)
SUPPLY CURRENT (A)
6
8
7
9
10
11
12
13
14
15
-40
-20
0
20
40
60
80
100
V
IN+
> V
IN-
V
CC
= 5.0V
V
CC
= 2.0V
V
CC
= 3.0V
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +1.6V to +5.5V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= 3V and T
A
= +25C.)
f = 100Hz to 100kHz, C
REF
= 0.1F
HYST = REF
SO package
CONDITIONS
V
RMS
10
Output Voltage Noise
nA
200
400
I
REF-
Sink Current
A
15
50
I
REF+
Source Current
V
1.125
1.235
1.255
V
REF
Reference Voltage
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
1.205
1.235
1.265
__________________________________________Typical Operating Characteristics
(V
CC
= +3.0V, R
PULL-UP
= 100k
, V
CM
= 0V, T
A
= +25C, unless otherwise noted.)
10
CMRR
Common-Mode Rejection Ratio
mV/V
1.5
4.0
f = 100Hz to 100kHz, C
REF
= 1000pF
Input Voltage Noise
e
n
V
RMS
0.2
I
OUT
= 100A, 1.6V < V
CC
< 2.7V
OUT Output Voltage Low
V
OL
V
20
Propagation Delay
t
PD-
s
10
R
PULL-UP
= 1M
,
C
LOAD
= 15pF, high to low
10mV overdrive
50mV overdrive
QSOP package
HYST Input Voltage Range
V
V
REF -
0.05
V
REF
I
HYST
HYST Input Leakage
nA
5
Hysteresis Gain
V/V
1.0
MAX package, T
A
= -40C to +85C
1.185
1.235
1.285
MAX package, T
A
= 0C to +85C
1.205
1.235
1.265
0.4
I
OUT
= 500A, 2.7V < V
CC
< 5.5V
REFERENCE
MAX965MAX970
Single/Dual/Quad, Micropower,
Ultra-Low-Voltage, Rail-to-Rail I/O Comparators
4
_______________________________________________________________________________________
0
0
MAX965 SUPPLY CURRENT
vs. SUPPLY VOLTAGE
(INCLUDES REFERENCE CURRENT)
MAX965/70-TOC7a
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (A)
2
4
6
8
10
12
14
1
2
3
4
5
6
V
IN+
> V
IN-
-60
-20
0
-40
20
40
60
80
100
COMPARATOR OUTPUT SHORT-CIRCUIT
SINK CURRENT vs. TEMPERATURE
MAX965/70 -TOC8a
TEMPERATURE (C)
OUTPUT SHORT-CIRCUIT SINK CURRENT (mA)
V
CC
= 2V
V
CC
= 3V
V
IN+
< V
IN-
V
CC
= 5V
0
2
4
6
8
10
12
14
0
1.5
1.0
0.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0
4
2
6
8
10
12
COMPARATOR OUTPUT
LOW VOLTAGE vs. SINK CURRENT
MAX965/70-09a
SINK CURRENT (mA)
OUTPUT LOW VOLTAGE (V)
V
IN+
= < V
IN-
V
CC
= 5V
V
CC
= 3V
V
CC
= 2V
6
-60
PROPAGATION DELAY (t
PD-
)
vs. TEMPERATURE
MAX965-TOC10a
TEMPERATURE (C)
DELAY (s)
7
4
5
9
8
10
11
12
13
14
-40
-20
0
20
40
60
80
100
V
OD
= 50mV
V
CC
= 2.0V
V
CC
= 5.0V
V
CC
= 3.0V
70
0
0.001
0.01
0.1
PROPAGATION DELAY (t
PD-
)
vs. CAPACITIVE LOAD
10
MAX4108/9-11a
CAPACITIVE LOAD (
F)
DELAY (s)
30
20
40
50
60
V
OD
= 50mV
V
CC
= 5.0V
V
CC
= 3.0V
V
CC
= 2.0V
0
0
PROPAGATION DELAY (t
PD-
)
vs. INPUT OVERDRIVE
MAX965-TOC12a
INPUT OVERDRIVE (mV)
DELAY (s)
10
5
15
20
25
30
20
40
60
80
100
120 140
160
V
CC
= 5.0V
V
CC
= 2.0V
V
CC
= 3.0V
_____________________________Typical Operating Characteristics (continued)
(V
CC
= +3.0V, R
PULL-UP
= 100k
, V
CM
= 0V, T
A
= +25C, unless otherwise noted.)
8
-60
MAX969 SUPPLY CURRENT
vs. TEMPERATURE
MAX965-TOC4b
TEMPERATURE (C)
SUPPLY CURRENT (A)
12
10
14
16
18
20
-40
-20
0
20
40
60
80
100
V
IN+
> V
IN-
V
CC
= 5.0V
V
CC
= 2.0V
V
CC
= 3.0V
7
-60
MAX970 SUPPLY CURRENT
vs. TEMPERATURE
MAX965-TOC5b
TEMPERATURE (C)
SUPPLY CURRENT (A)
8
10
9
11
12
13
14
15
16
-40
-20
0
20
40
60
80
100
V
IN+
> V
IN-
V
CC
= 2.0V
V
CC
= 3.0V
V
CC
= 5.0V
0
0
SUPPLY CURRENT PER COMPARATOR
vs. SUPPLY VOLTAGE
(EXCLUDES REFERENCE CURRENT)
MAX965-TOC6b
SUPPLY VOLTAGE (V)
SUPPLY CURRENT PER COMPARATOR (A)
0.5
1.0
1.5
2.0
2.5
3.0
3.5
1
2
3
4
5
6
V
IN+
> V
IN-
MAX965MAX970
Single/Dual/Quad, Micropower,
Ultra-Low-Voltage, Rail-to-Rail I/O Comparators
_______________________________________________________________________________________
5
4.0
3.8
2.0
0.01
0.1
1
10
100
SUPPLY CURRENT PER COMPARATOR
vs. OUTPUT TRANSITION FREQUENCY
2.4
2.2
MAX965/70 TOC13A
OUTPUT TRANSITION FREQUENCY (kHz)
SUPPLY CURRENT PER COMPARATOR (
A)
2.8
2.6
3.2
3.0
3.6
3.4
V
CC
= 5.5V
V
CC
= 1.6V
100
120
110
140
130
160
150
170
190
180
200
-60
-20
0
-40
20
40
60
80
100
INPUT OFFSET VOLTAGE
vs. TEMPERATURE
MAX965/70-TOC14a
TEMPERATURE (C)
INPUT OFFSET VOLTAGE (
V)
0
1.0
0.5
2.0
1.5
3.5
3.0
2.5
4.0
-40
-20
0
20
40
60
80
100
INPUT BIAS CURRENT
vs. TEMPERATURE
MAX965/70-TOC15a
TEMPERATURE (C)
INPUT BIAS CURRENT (pA)
V
CC
= 5.0V
V
CC
= 3.0V
0
10
5
15
30
35
25
20
40
0
1.0 1.5 2.0 2.5
0.5
3.0 3.5 4.0 4.5 5.0
PROGRAMMED HYSTERESIS
vs. COMMON-MODE VOLTAGE
MAX965/70 TOC16
COMMON-MODE VOLTAGE (V)
PROGRAMMED HYSTERESIS (mV)
V
CC
= 5.0V
V
HYST
= 22mV (PROGRAMMED)
1.2320
1.2325
1.2335
1.2330
1.2340
1.2345
-60
-20
0
-40
20
40
60
80
100
REFERENCE VOLTAGE
vs. TEMPERATURE
MAX965/70 TOC6a
TEMPERATURE (C)
REFERENCE VOLTAGE (V)
V
CC
= 5V
V
CC
= 3V
V
CC
= 2V
1.223
1.229
1.227
1.225
1.231
1.233
1.237
1.235
1.239
1.0
1.8
2.6
3.4
4.2
5.0
5.8
REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
MAX965/70-TOC13
V
CC
(V)
REFERENCE VOLTAGE (V)
0.6
0.8
0.7
1.0
0.9
1.3
1.2
1.1
1.4
0
200
100
300
400
500
600
700
REFERENCE VOLTAGE
vs. SOURCE CURRENT
MAX965/70-TOC18a
SOURCE CURRENT (
A)
REFERENCE VOLTAGE (V)
_____________________________Typical Operating Characteristics (continued)
(V
CC
= +3.0V, R
PULL-UP
= 100k
, V
CM
= 0V, T
A
= +25C, unless otherwise noted.)
IN+
OUT
PROPAGATION DELAY (t
PD+
)
MAX965/70-TOC15
2
s/div
V
CC
= 3V
50mV/div
2V/div
50mV/div
2V/div
IN+
OUT
PROPAGATION DELAY (t
PD-
)
MAX965/70-TOC16b
2
s/div
V
CC
= 3V
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