19-1808; Rev 1; 1/07
+1.0V Micropower SOT23 Comparators
General Description
The MAX9100/MAX9101 micropower comparators are
optimized for single-cell systems, and are fully speci-
fied for operation from a single supply of 1.0V to 5.5V.
This ultra-low voltage operation, 5µA quiescent current
consumption, and small footprint make the
MAX9100/MAX9101 ideal for use in battery-powered
systems. A wide-input common-mode range that
includes the negative rail and rail-to-rail output swing
allows almost all of the power supply to be used for sig-
nal voltage. In addition, propagation delay is less than
4µs, and rise and fall times are 100ns.
The MAX9100 features a push-pull CMOS output stage
that sinks and sources current with large internal output
drivers that allow rail-to-rail output swings with loads up
to 5mA.The MAX9101 has an open-drain output stage
that makes it suitable for mixed-voltage designs.
The MAX9100/MAX9101 are available in tiny SOT23-5
packages.
____________________________Features
• Ultra-Low Voltage: Guaranteed Down to 1.0V
• Low Quiescent Current: 5µA
• Optimized for Single-Cell Battery-Powered
Systems
• Wide Input Common-Mode Range
• CMOS Rail-to-Rail Output Swing (MAX9100)
• Open-Drain Output (MAX9101)
• 4µs Propagation Delay
• High Output Drive Capability: 5mA Sink and
Source (MAX9100)
• No Output Phase Reversal for Overdriven Inputs
• Available in Tiny SOT23-5 Package
MAX9100/MAX9101
________________________Applications
Single-Cell Systems
Pagers
Closed Sensor Applications
Battery-Powered Instrumentation
Portable Electronic Equipment
Portable Communication Devices
PART
MAX9100EUK-T
MAX9100ESA
MAX9101EUK-T
MAX9101ESA
Ordering Information
PIN-
PACKAGE
5 SOT23-5
8 SO
5 SOT23-5
8 SO
TOP
MARK
ADOR
—
ADOS
—
PKG
CODE
U5-1
S8-2
U5-1
S8-2
Note:
All devices specified for over -40°C to +85°C operating
temperature range.
Typical Operating Characteristic
SUPPLY CURRENT vs. TEMPERATURE
MAX9100 toc01
Pin Configurations
TOP VIEW
8
7
6
I
CC
(µA)
5
V
CC
= +1V
4
V
CC
= +5V
V
CC
= +2V
OUT
1
5
V
CC
GND
2
MAX9100
MAX9101
4
IN-
IN+
3
3
2
-40
-15
10
35
60
85
TEMPERATURE (°C)
SOT23
Pin Configurations continued at end of data sheet.
1
________________________________________________________________
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.
+1.0V Micropower SOT23 Comparators
MAX9100/MAX9101
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
CC
to GND) ................................. -0.3V to +6V
IN+ or IN- to GND...................................... -0.3V to (V
CC
+ 0.3V)
Current Into Input Pins..................................................... ±20mA
Output Voltages to GND
MAX9100 .............................................. -0.3V to (V
CC
+ 0.3V)
MAX9101 ............................................................ -0.3V to +6V
Output Short-Circuit Duration (to V
CC
or GND)......... Continuous
Continuous Power Dissipation (T
A
= +70°C)
5-Pin Plastic SOT23
(derate 7.3mW/°C above +70°C) ............................... 571mW
8-Pin Plastic SO
(derate 5.88mW/°C above +70°C) ............................. 471mW
Operating Temperature Range .......................... -40°C to +85°C
Junction Temperature ..................................................... +150°C
Storage Temperature Range ............................ -65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
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.
ELECTRICAL CHARACTERISTICS
(V
CC
= +1.2V to +5.5V, V
CM
= 0V, and T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
Supply Voltage Range
Supply Current
Input Offset Voltage
Input Hysteresis
Input Offset Current
Input Bias Current
Input Resistance
Input Common-Mode Voltage
Range (Note 2)
Common-Mode
Rejection Ratio (Note 3)
Power-Supply
Rejection Ratio
SYMBOL
V
CC
I
CC
V
OS
V
HYST
I
OS
I
B
R
IN
V
CM
CMRR
PSRR
V
CC
= +5.5V, T
A
= +25°C
V
CC
= +5.5V, T
A
= T
MIN
to T
MAX
V
CC
= +5.5V, T
A
= +25°C
V
CC
= +5.5V, T
A
= T
MIN
to T
MAX
Differential mode
Common mode
Inferred from CMRR test
T
A
= +25°C
T
A
= T
MIN
to T
MAX
1.0V
≤
V
CC
≤
1.5V, T
A
= +25°C
1.5V
≤
V
CC
≤
5.5V, T
A
= -40°C to +85°C
V
CC
= +5.0V, I
SOURCE
= 5mA
Output-Voltage High (MAX9100)
V
CC
- V
OH
V
CC
= +1.2V, I
SOURCE
= 0.5mA
V
CC
= +1.0V, I
SOURCE
= 0.1mA,
T
A
= +25°C
V
CC
= +5.0V, I
SINK
= 5mA
Output-Voltage Low
V
OL
V
CC
= +1.2V, I
SINK
= 0.5mA
V
CC
= +1.0V, I
SINK
= 0.5mA, T
A
= +25°C
0
54
46
54
56
66
68
90
60
25
100
45
15
180
120
75
180
120
75
mV
mV
68
200
65
V
CC
-0.2
±5
CONDITIONS
Inferred from the PSRR tests
V
CC
= +1V, T
A
= +25°C
V
CC
= +5V, T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
±2
±0.1
±5
±10
±15
±30
MIN
1.0
TYP
5.0
6.0
±3
MAX
5.5
8.0
13.0
±10
±20
UNITS
V
µA
mV
mV
nA
nA
MΩ
V
dB
dB
2
_______________________________________________________________________________________
+1.0V Micropower SOT23 Comparators
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +1.2V to +5.5V, V
CM
= 0V, and T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
SYMBOL
Sourcing
(MAX9100)
Output Short-Circuit Current
I
SC
Sinking
Output Open-Drain Leakage
Current (MAX9101)
Power-Up Time
Input Capacitance
Output Rise Time (MAX9100)
Output Fall Time (Note 4)
I
LKG
t
PU
C
IN
t
rise
t
fall
t
pd+
Propagation Delay (Note 5)
t
pd-
t
pd+
t
pd-
C
L
= 15pF
C
L
= 15pF
V
OVERDRIVE
= 50mV, V
CC
= +5.0V
V
OVERDRIVE
= 50mV, V
CC
= +5.0V
V
OVERDRIVE
= 50mV, V
CC
= +1.0V
V
OVERDRIVE
= 50mV, V
CC
= +1.0V
V
CC
= +5.5V
CONDITIONS
V
CC
= +5.0V
V
CC
= +1.2V
V
CC
= +5.0V
V
CC
= +1.2V
MIN
TYP
25
3
28
3
0.02
250
3
100
100
3.4
4.5
3.3
3.7
µs
0.2
µA
ns
pF
ns
ns
MAX
UNITS
MAX9100/MAX9101
mA
Note 1:
All specifications are 100% production tested at T
A
= +25°C. All temperature limits are guaranteed by design.
Note 2:
Operation with V
CM
up to V
CC
is possible with reduced accuracy. See the
Input Stage Circuitry and Rail-to-Rail
Operation
section.
Note 3:
Tested over the specified Input Common-Mode Voltage Range and with V
CC
= +5.5V.
Note 4:
Specified with C
L
= 15pF for MAX9100/MAX9101, and with R
PULLUP
= 5kΩ for MAX9101.
Note 5:
Input overdrive is defined above and beyond the offset voltage and hysteresis of the comparator input.
_______________________________________________________________________________________
3
+1.0V Micropower SOT23 Comparators
MAX9100/MAX9101
Typical Operating Characteristics
(V
CC
= +5V, V
CM
= 0V, T
A
= +25°C, unless otherwise noted.)
OUTPUT-VOLTAGE LOW
vs. SINK CURRENT
MAX9100 toc01
MAX1900 toc02
SUPPLY CURRENT vs. TEMPERATURE
8
7
6
I
CC
(µA)
5
V
CC
= +1V
4
3
2
-40
-15
10
35
60
85
TEMPERATURE (°C)
V
CC
= +5V
600
500
400
V
OL
(mV)
300
200
100
0
0
OUTPUT-VOLTAGE HIGH
vs. SOURCE CURRENT
MAX1900 toc03
600
500
V
CC
= +1V
V
CC
- V
OH
(mV)
400
V
CC
= +2V
300
200
100
0
V
CC
= +1.2V
V
CC
= +5V
V
CC
= +2V
V
CC
= +1V
V
CC
= +1.2V
V
CC
= +2V
V
CC
= +5V
5
10
I
LOAD
(mA)
15
20
0
5
10
I
LOAD
(mA)
15
20
INPUT BIAS CURRENT vs. V
CM
800
700
600
I
BIAS
(nA)
MAX9100 toc04
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX9100 toc05
SUPPLY CURRENT
vs. OUTPUT TRANSITION FREQUENCY
35
30
I
CC
(µA)
25
20
15
V
CC
= +2V
10
5
V
CC
= +5V
MAX9100 toc06
900
7.5
7.0
6.5
I
CC
(µA)
6.0
5.5
V
OUT
= GND
40
V
OUT
= V
CC
500
400
300
200
100
0
-100
0
1
2
V
CM
(V)
3
4
5
I
BIAS(-)
= I
BIAS(+)
5.0
V
CM
= V
CC
4.5
1
2
3
V
CC
(V)
4
5
0
0.01
0.1
V
CC
= +1V
1
f
CLK
(kHz)
10
100
PROPAGATION DELAY (tpd+)
vs. INPUT OVERDRIVE
MAX9100 toc07
PROPAGATION DELAY (tpd+)
vs. INPUT OVERDRIVE
MAX9100 toc08
PROPAGATION DELAY (tpd)+
vs. INPUT OVERDRIVE
MAX9100 toc09
5.0
5.0
5.0
PROPAGATION DELAY (µs)
PROPAGATION DELAY (µs)
4.0
4.0
T
A
= +85°C
T
A
= +25°C
PROPAGATION DELAY (µs)
4.5
4.5
4.5
4.0
T
A
= -40°C
T
A
= +85°C
3.5
T
A
= +85°C
3.5
3.5
3.0
V
CC
= +5V
0
50
T
A
= +25°C, -40°C
3.0
T
A
= -40°C
V
CC
= +2V
3.0
V
CC
= +1V
2.5
40
60
80
100
0
20
40
T
A
= +25°C
2.5
2.5
100
150
200
250
0
20
V
OD
(mV)
V
OD
(mV)
60
80
100
V
OD
(mV)
4
_______________________________________________________________________________________
+1.0V Micropower SOT23 Comparators
MAX9100/MAX9101
Typical Operating Characteristics (continued)
(V
CC
= +5V, V
CM
= 0V, T
A
= +25°C, unless otherwise noted.)
PROPAGATION DELAY vs. V
CM
MAX9100 toc10
PROPAGATION DELAY (t
PD
+)
MAX9100 toc11
4.5
PROPAGATION DELAY (µs)
4.0
IN+
50mV/div
3.5
t
pd-
3.0
OUT
2.5
2.0
0
1
2
3
4
5
V
CM
(mV)
t
pd+
V
OD
= 50mV
1µs/div
500mV/div
PROPAGATION DELAY (t
PD
-)
MAX9100 toc12
PROPAGATION DELAY (t
PD
+)
MAX9100 toc13
IN+
50mV/div
IN+
50mV/div
OUT
500mV/div
OUT
2V/div
V
OD
= 50mV
1µs/div
V
OD
= 50mV
1µs/div
PROPAGATION DELAY (tpd-)
MAX9100 toc14
POWER-UP DELAY
MAX9100 toc15
IN+
50mV/div
V
CC
2V/div
OUT
2V/div
OUT
V
IN
- = 0V
V
IN
+ = 100mV
2V/div
V
OD
= 50mV
1µs/div
100ns/div
_______________________________________________________________________________________
5
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