MAX9030/MAX9031/
MAX9032/MAX9034
Low-Cost, Ultra-Small, Single/Dual/Quad
Single-Supply Comparators
General Description
The MAX9030/MAX9031/MAX9032/MAX9034 single/
dual/quad comparators are optimized for single-supply
applications from +2.5V to +5.5V but can also be operated from dual supplies. These comparators have a
188ns propagation delay and consume 35µA of supply
current per comparator over the -40°C to +125°C operating temperature range. The combination of lowpower, single-supply operation down to +2.5V, and
ultra-small footprint makes these devices ideal for
portable applications.
The MAX9030 is a low-cost single comparator with
shutdown. The MAX9031, MAX9032, and MAX9034 are
low-cost single, dual, and quad comparators without
shutdown, respectively. The comparators’ 4mV of builtin hysteresis provides noise immunity and prevents
oscillations even with a slow-moving input signal. The
input common-mode range extends from the negative
supply to within 1.1V of the positive supply. The design
of the comparator output stage substantially reduces
switching current during output transitions, virtually
eliminating power-supply glitches.
The MAX9030 single comparator with shutdown is available in the space-saving 6-pin SC70 and SOT23 packages. The MAX9031 single comparator is available in tiny
5-pin SC70 and SOT23 packages. The MAX9032 dual
comparator is available in 8-pin SOT23 and µMAX®
packages, and the MAX9034 quad comparator is available in a 14-pin TSSOP package.
________________________Applications
Battery-Powered
Portable Systems
Mobile Communications
Sensor Signal Detection
Photodiode Preamps
Digital Line Receivers
Keyless Entry Systems
Threshold Detectors/
Discriminators
Features
o Low-Cost Solution Available in Space-Saving
SC70 Packages (MAX9030/MAX9031)
o +2.5 to +5.5V Single-Supply Voltage Range
o Comparator Output Swings Rail-to-Rail
o Internal 4mV Comparator Hysteresis
o 188ns Propagation Delay
o Low 35µA Supply Current
o No Phase Reversal for Overdriven Inputs
o Space-Saving Packages
5-Pin SC70 (MAX9031)
6-Pin SC70 (MAX9030)
8-Pin SOT23 (MAX9032)
14-Pin TSSOP (MAX9034)
Ordering Information
TEMP. RANGE
PIN-PACKAGE
MA X9 03 0AX T+ T
PART
-40°C to +125°C
6 SC70
MAX9030AUT+T
-40°C to +125°C
6 SOT23
MAX9031AXK+T
-40°C to +125°C
5 SC70
MAX9031AUK+T
-40°C to +125°C
5 SOT23
MAX9 03 2AKA+T
-40°C to +125°C
8 SOT23
MAX9032AUA+
-40°C to +125°C
8 µMAX
MAX9032ASA+
-40°C to +125°C
8 SO
MAX9032ASA/V+
-40°C to +125°C
8 SO
MA X9 03 4AUD+
-40°C to +125°C
14 TSSOP
MAX9034AS D+
-40°C to +125°C
14 SO
+Denotes a lead-free(Pb)/RoHS-compliant package.
T = Tape and reel.
/V denotes an automotive qualified package.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
Typical Application Circuit appears at end of data sheet.
Pin Configurations
TOP VIEW
IN+ 1
VSS 2
6
MAX9030
5
VDD
SHDN
IN+ 1
VSS 2
5
VDD
OUTA 1
8
INA- 2
MAX9031
7
VDD
OUTB
MAX9032
3
6
INB-
VSS 4
5
INB+
INA+
OUTA 1
2
13 IND-
INA+
3
12 IND+
VDD 4
IN- 3
4
SC70/SOT23
OUT
IN- 3
4
SC70/SOT23
OUT
SOT23/µMAX/SO
14 OUTD
INA-
MAX9034
INB+ 5
11 VSS
10 INC+
INB- 6
9
INC-
OUTB 7
8
OUTC
TSSOP/SO
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-1767; Rev 2; 8/12
MAX9030/MAX9031/MAX9032/MAX9034
Low-Cost, Ultra-Small, Single/Dual/Quad
Single-Supply Comparators
ABSOLUTE MAXIMUM RATINGS
8-Pin SOT23 (derate 9.1mW/°C above +70°C).............727mW
8-Pin µMAX (derate 4.5mW/°C above +70°C) ..............362mW
8-Pin SO (derate 5.88mW/°C above +70°C).................471mW
14-Pin TSSOP (derate 9.1mW/°C above +70°C) ..........727mW
14-Pin SO (derate 8.33mW/°C above +70°C)...............667mW
Operating Temperature Range
Automotive Application...................................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................ +300°C
Soldering Temperature (reflow) ...................................... +260°C
Supply Voltage (VDD to VSS) ....................................-0.3V to +6V
Voltage Inputs (IN+, IN- to VSS). ................-0.3V to (VDD + 0.3V)
Differential Input Voltage (IN+ to IN-) .................................+6.6V
Output Short-Circuit
Duration ...............................................2s to Either VDD or VSS
Current into Any Pin ............................................................20mA
Continuous Power Dissipation (TA = +70°C) ...............................
5-Pin SC70 (derate 3.1mW/°C above +70°C) ...............247mW
5-Pin SOT23 (derate 7.1mW/°C above +70°C).............571mW
6-Pin SC70 (derate 3.1mW/°C above +70°C) ...............245mW
6-Pin SOT23 (derate 8.7mW/°C above +70°C).............696mW
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
(VDD = +5V, VSS = 0, VCM = 0, V SHDN = +5V (Note 1), TA = -40°C to +125°C, unless otherwise noted. Typical values are at
TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
Operating Voltage Range
VDD
Supply Current per Comparator
IDD
Guaranteed by PSRR test
Supply Current in Shutdown
V S HDN = 0 (Note 1)
Shutdown Input Bias Current
V S HDN = 0 to VDD (Note 1)
Shutdown Logic High
(Note 1)
Shutdown Logic Low
(Note 1)
Input Offset Voltage
Input Offset Voltage
Temperature Coefficient
VOS
Input Bias Current
Input Offset Current
Common-Mode Voltage Range
MIN
TYP
2.5
MAX
5.5
V
55
µA
0.05
1
µA
0.1
2.5
µA
V
±1
(Note 3)
0.3 × VDD
V
±5
mV
±1
(Note 4)
UNITS
35
0.7 × VDD
TCVOS
Hysteresis
2
CONDITIONS
µV/°C
4
mV
IBIAS
8
80
nA
IOS
±2
±60
nA
VCM
Guaranteed by CMRR test
VSS
VDD - 1.1
V
Common-Mode Rejection Ratio
CMRR
VSS ≤ VCM ≤ (VDD - 1.1V), VDD = +5.5V
72
100
dB
Power-Supply Rejection Ratio
PSRR
VDD = +2.5V to +5.5V
72
100
dB
Maxim Integrated
MAX9030/MAX9031/MAX9032/MAX9034
Low-Cost, Ultra-Small, Single/Dual/Quad
Single-Supply Comparators
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +5V, VSS = 0, VCM = 0, V SHDN = +5V (Note 1), TA = -40°C to +125°C, unless otherwise noted. Typical values are at
TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
Output Voltage-Swing
VOL, VOH
Output Short-Circuit Current
CONDITIONS
VOH = VDD - VOUT,
(VIN+ - VIN-) ≥ 20mV
VOL = VOUT - VSS,
(VIN- - VIN+) ≥ 20mV
MIN
TYP
ISOURCE = 10µA
2
ISOURCE = 4mA
165
ISINK = 10µA
2
ISINK = 4mA
165
ISC
V SHDN ≤ (0.3 × VDD), VOUT = 0 to VDD
(Note 1)
tPD+, tPD -
Rise/Fall-Time
UNITS
400
mV
400
45
Shutdown Mode Output
Leakage
Propagation Delay
MAX
tR, tF
RL = 10kΩ,
CL = 15pF (Note 5)
±0.01
VOD = 10mV
228
VOD = 100mV
188
VDD = +5V, RL = 10kΩ, CL = 15pF (Note 6)
mA
±3.5
µA
ns
20
ns
Shutdown Delay Time ON/OFF
(Note 1)
40
ns
Shutdown Delay Time OFF/ON
(Note 1)
400
ns
Power-On Time
RL = 10kΩ, CL = 15pF
200
ns
No sustained oscillations
150
pF
Maximum Capacitive Load
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
CL
MAX9030 only.
All devices are production tested at +25°C. All temperature limits are guaranteed by design.
Comparator Input Offset is defined as the center of the hysteresis zone.
Hysteresis is defined as the difference of the trip points required to change comparator output states.
VOD is the overdrive that is beyond the offset and hysteresis-determined trip points.
Rise and fall times are measured between 10% and 90% at OUT.
Typical Operating Characteristics
(VDD = +5V, VSS = 0, VCM = 0, RL = 10kΩ, CL = 15pF, VOD= 100mV, TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT
vs. TEMPERATURE
36
34
32
30
37
36
35
34
1000
MAX9030/1/2/4 toc03
MAX9030/1/2/4 toc02
SUPPLY CURRENT (µA)
38
38
SUPPLY CURRENT (µA)
MAX9030/1/2/4 toc01
40
SUPPLY CURRENT
vs. OUTPUT TRANSITION FREQUENCY
SUPPLY CURRENT (µA)
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
100
33
28
32
2.5
3.0
3.5
4.0
4.5
SUPPLY VOLTAGE (V)
Maxim Integrated
5.0
5.5
-50
-25
0
25
50
75
TEMPERATURE (°C)
100
125
10
10
100
1k
10k
100k
1M
OUTPUT TRANSITION FREQUENCY (Hz)
3
MAX9030/MAX9031/MAX9032/MAX9034
Low-Cost, Ultra-Small, Single/Dual/Quad
Single-Supply Comparators
Typical Operating Characteristics (continued)
(VDD = +5V, VSS = 0, VCM = 0, RL = 10kΩ, CL = 15pF, VOD = 100mV, TA = +25°C, unless otherwise noted.)
0.1
0
-0.1
-0.2
-0.3
100
80
60
40
20
0
-25
0
25
50
75
100
MAX9030/1/2/4 toc06
140
120
100
80
60
40
20
0
0
125
160
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
TEMPERATURE (°C)
SOURCE CURRENT (mA)
SINK CURRENT (mA)
OUTPUT SHORT-CIRCUIT (SINK) CURRENT
vs. TEMPERATURE
OUTPUT SHORT-CIRCUIT (SOURCE) CURRENT
vs. TEMPERATURE
PROPAGATION DELAY vs. CAPACITIVE LOAD
(VDD = 2.7V)
45
40
35
50
45
40
280
0
25
50
75
100
260
240
220
200
180
160
140
35
120
100
30
-25
MAX9030/1/2/4 toc09
55
300
PROPAGATION DELAY (ns)
50
60
MAX9030/1/2/4 toc08
MAX9030/1/2/4 toc07
55
-50
125
-50
-25
0
25
50
75
100
0
125
25
50
75
100
125
TEMPERATURE (°C)
TEMPERATURE (°C)
CAPACITIVE LOAD (pF)
PROPAGATION DELAY vs. CAPACITIVE LOAD
(VDD = +5V)
PROPAGATION DELAY vs. TEMPERATURE
PROPAGATION DELAY
vs. INPUT OVERDRIVE VOLTAGE
tPD-
220
200
tPD+
180
160
260
240
tPD-
220
200
tPD+
180
160
275
250
200
150
125
140
100
120
120
75
100
100
25
50
75
100
CAPACITIVE LOAD (pF)
125
150
tPD+
175
140
0
tPD-
225
150
MAX9030/1/2/4 toc12
240
280
300
PROPAGATION DELAY (ns)
260
300
MAX9030/1/2/4 toc11
280
PROPAGATION DELAY (ns)
MAX9030/1/2/4 toc10
300
PROPAGATION DELAY (ns)
120
-0.5
30
4
140
-0.4
60
SHORT-CIRCUIT SINK CURRENT (mA)
160
180
OUTPUT LOW VOLTAGE (mV)
0.2
MAX9030/1/2/4 toc05
0.3
SHORT-CIRCUIT SOURCE CURRENT (mA)
INPUT OFFSET VOLTAGE (mV)
0.4
180
VDD - VOUT
OUTPUT HIGH VOLTAGE (mV)
MAX9030/1/2/4 toc04
0.5
-50
OUTPUT LOW VOLTAGE
vs. SINK CURRENT
OUTPUT HIGH VOLTAGE
vs. SOURCE CURRENT
INPUT OFFSET VOLTAGE
vs. TEMPERATURE
50
-50
-25
0
25
50
75
TEMPERATURE (°C)
100
125
0
20
40
60
80
100
120
140
INPUT OVERDRIVE VOLTAGE (mV)
Maxim Integrated
MAX9030/MAX9031/MAX9032/MAX9034
Low-Cost, Ultra-Small, Single/Dual/Quad
Single-Supply Comparators
Typical Operating Characteristics (continued)
(VDD = +5V, VSS = 0, VCM = 0, RL = 10kΩ, CL = 15pF, VOD = 100mV, TA = +25°C, unless otherwise noted.)
IN+ - IN200mV/div
MAX9030/1/2/4 toc14
OUTPUT SWITCHING CURRENT, RISING
MAX9030/1/2/4 toc13
PROPAGATION DELAY
IN+ - IN5V/div
OUT
5V/div
SWITCHING
CURRENT
200µA/div
OUT
2V/div
OUTPUT SWITCHING CURRENT, FALLING
SINUSOID 1MHz RESPONSE AT 1.25MHz
VOD = 100mV
IN+ - IN5V/div
MAX9030/1/2/4 toc16
TIME (2µs/div)
MAX9030/1/2/4 toc15
TIME (200ns/div)
IN+ - IN100mV/div
OUT
5V/div
OUT
2V/div
SWITCHING
CURRENT
50µA/div
TIME (100ns/div)
SINUSOID 1MHz RESPONSE AT 1.25MHz
VOD = 10mV
POWER-UP DELAY
IN+ - IN10mV/div
MAX9030/1/2/4 toc18
MAX9030/1/2/4 toc17
TIME (1µs/div)
VDD
2.5V/div
OUT
2V/div
OUT
TIME (100ns/div)
Maxim Integrated
TIME (200ns/div)
5
MAX9030/MAX9031/MAX9032/MAX9034
Low-Cost, Ultra-Small, Single/Dual/Quad
Single-Supply Comparators
Pin Description
PIN
NAME
MAX9031
MAX9032
MAX9034
1
1
—
—
IN+
Comparator Noninverting Input
2
2
4
11
VSS
Negative Supply Voltage. Bypass with a 0.1µF capacitor.
3
3
—
—
IN-
Comparator Inverting Input
4
4
—
—
OUT
5
—
—
—
SHDN
6
5
8
4
VDD
—
—
1
1
OUTA
—
—
2
2
INA-
Comparator A Inverting Input
—
—
3
3
INA+
Comparator A Noninverting Input
—
—
5
5
INB+
Comparator B Noninverting Input
—
—
6
6
INB-
Comparator B Inverting Input
—
—
7
7
OUTB
Comparator B Output
—
—
—
8
OUTC
Comparator C Output
—
—
—
9
INC-
Comparator C Inverting Input
—
—
—
10
INC+
Comparator C Noninverting Input
—
—
—
12
IND+
Comparator D Noninverting Input
—
—
—
13
IND-
Comparator D Inverting Input
—
—
—
14
OUTD
Detailed Description
The MAX9030/MAX9031/MAX9032/MAX9034 are single/dual/quad low-cost comparators. They have an
operating supply voltage from +2.5V to +5.5V when
operating from a single supply and from ±1.25V to
±2.75V when operating from dual power supplies, and
consume only 35µA. Their common-mode input voltage
range extends from the negative supply to within 1.1V
of the positive supply. Internal hysteresis ensures clean
output switching, even with slow-moving input signals.
Shutdown Mode
The MAX9030 comparator comes with a power-saving
shutdown mode. When in shutdown, the supply current
drops from a typical 35µA to 0.05µA, and the outputs
become high impedance. SHDN has a high input impedance and typically draws 0.1µA when connected to VSS
or VDD. A maximum logic low voltage of 0.3V VDD
6
FUNCTION
MAX9030
Comparator Output
Shutdown
Positive Supply Voltage. Bypass with a 0.1µF capacitor.
Comparator A Output
Comparator D Output
applied to SHDN places the device in the shutdown
mode. A minimum logic high voltage of 0.7V V DD
applied to SHDN will enable normal operation. To disable shutdown, connect SHDN to VDD.
Applications Information
Adding Hysteresis
Hysteresis extends the comparator’s noise margin by
increasing the upper threshold and decreasing the
lower threshold. A voltage-divider from the output of the
comparator sets the trip voltage. Therefore, the trip voltage is related to the output voltage.
These comparators have 4mV internal hysteresis.
Additional hysteresis can be generated with two resistors using positive feedback (Figure 1). Use the following procedure to calculate resistor values:
Maxim Integrated
MAX9030/MAX9031/MAX9032/MAX9034
Low-Cost, Ultra-Small, Single/Dual/Quad
Single-Supply Comparators
R1
VDD
VDD
VDD
VDD
R2
IN+
VREF
IN+
VIN
OUT
OUT
10kΩ
IN-
IN-
VIN
MAX9031
MAX9031
0.1µF
VSS
VSS
Figure 1. Additional Hysteresis
1) Find the trip points of the comparator using these
formulas:
VTH = VREF + [((VDD - VREF)R2) / (R1 + R2)
VTL = VREF(1 - (R2 / (R1 + R2))]
where VTH is the threshold voltage at which the comparator switches its output from high to low as VIN
rises above the trip point. VTL is the threshold voltage at which the comparator switches its output from
low to high as VIN drops below the trip point.
2) The hysteresis band will be:
VHYS = VTH - VTL = VDD(R2 / (R1 + R2))
3) In this example, let VDD = +5V and VREF = +2.5V.
VTH = 2.5V + 2.5(R2 / (R1 + R2))V
Figure 2. Time Averaging of the Input Signal for Data Recovery
Board Layout and Bypassing
Use 100nF bypass as a starting point. Minimize signal
trace lengths to reduce stray capacitance. Minimize the
capacitive coupling between IN- and OUT. For slowmoving input signals (rise-time > 1ms), use a 1nF
capacitor between IN+ and IN-.
Biasing for Data Recovery
Digital data is often embedded into a bandwidth and
amplitude-limited analog path. Recovering the data can
be difficult. Figure 2 compares the input signal to a
time-averaged version of itself. This self-biases the
threshold to the average input voltage for optimal noise
margin. Even severe phase distortion is eliminated from
the digital output signal. Be sure to choose R1 and C1
so that:
ƒCAR >> 1 / (2πR1C1)
and
VTL = 2.5[1 - (R2 / (R1 + R2))]
where ƒCAR is the fundamental carrier frequency of the
digital data stream.
4) Select R2. In this example, we will choose 1kΩ.
5) Select VHYS. In this example, we will choose 50mV.
6) Solve for R1.
VHYS = VDD(R2 / (R1 + R2))
0.050V = 5(1000Ω/(R1 + 1000Ω))V
where R1 ≈ 100kΩ, VTH = 2.525V, and VTL = 2.475V.
The above-described design procedure assumes railto-rail output swing. If the output is significantly loaded,
the results should be corrected.
Maxim Integrated
7
MAX9030/MAX9031/MAX9032/MAX9034
Low-Cost, Ultra-Small, Single/Dual/Quad
Single-Supply Comparators
Typical Application Circuit
VDD
0.1µF
VIN
R1
VDD
IN+
VIN
OUT
VREF
INRL
MAX9031
R2
Package Information
For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”, “#”, or
“-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the
package regardless of RoHS status.
8
PACKAGE TYPE
PACKAGE CODE
OUTLINE NO.
LAND
PATTERN NO.
5 SC70
X5+1
21-0076
90-0188
6 SC70
X6SN+1
21-0077
90-0189
5 SOT23
U5+1
21-0057
90-0174
6 SOT23
U6SN+1
21-0058
90-0175
8 SOT23
K8+5
21-0078
90-0176
8 SO
S8+2
21-0262
90-0096
14 SO
S14+1
21-0041
90-0112
8 µMAX
U8+1
21-0036
90-0092
14 TSSOP
U14+1
21-0066
90-0113
Maxim Integrated
MAX9030/MAX9031/MAX9032/MAX9034
Low-Cost, Ultra-Small, Single/Dual/Quad
Single-Supply Comparators
Revision History
REVISION
NUMBER
REVISION
DATE
0
10/00
Initial release
—
1
5/10
Removed future product reference and added lead-free parts
1
2
8/12
Added MAX9032ASA/V+ to data sheet
1
DESCRIPTION
PAGES
CHANGED
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent
licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and
max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000 _________________________________ 9
© 2012 Maxim Integrated Products, Inc.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
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