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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 low-power, singlesupply 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 lowcost single, dual, and quad comparators without shutdown,
respectively. The comparators’ 4mV of built-in 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
●● Low-Cost Solution Available in Space-Saving SC70
Packages (MAX9030/MAX9031)
●● +2.5 to +5.5V Single-Supply Voltage Range
●● Comparator Output Swings Rail-to-Rail
●● Internal 4mV Comparator Hysteresis
●● 188ns Propagation Delay
●● Low 35μA Supply Current
●● No Phase Reversal for Overdriven Inputs
●● Space-Saving Packages
• 5-Pin SC70 (MAX9031)
• 6-Pin SC70 (MAX9030)
• 8-Pin SOT23 (MAX9032)
• 14-Pin TSSOP (MAX9034)
Ordering Information
PART
TEMP. RANGE
MAX9030AXT+T
MAX9030AUT+T
-40°C to +125°C
PIN-PACKAGE
6 SC70
-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
MAX9032AKA+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
MAX9034AUD+
-40°C to +125°C
14 TSSOP
MAX9034ASD+
-40°C to +125°C
14 SO
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
/V denotes automotive qualified part.
Typical Application Circuit appears at end of data sheet.
μMAX is a registered trademark of Maxim Integrated Products, Inc.
Pin Configurations
TOP VIEW
IN+ 1
VSS 2
6
MAX9030
IN- 3
5
4
SC70/SOT23
VDD
SHDN
OUT
IN+ 1
VSS 2
5
VDD
OUTA 1
INA- 2
MAX9031
INA+
IN- 3
4
SC70/SOT23
OUT
3
VSS 4
8
MAX9032
7
VDD
OUTB
6
INB-
5
INB+
SOT23/µMAX/SO
14 OUTD
OUTA 1
INA-
2
INA+
3
VDD 4
13 IND12 IND+
MAX9034
INB+ 5
10 INC+
INB- 6
9
INC-
OUTB 7
8
OUTC
TSSOP/SO
19-1767; Rev 3; 4/19
11 VSS
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, VSHDN = +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
CONDITIONS
Guaranteed by PSRR test
MIN
TYP
MAX
UNITS
5.5
V
35
55
µA
2.5
Supply Current in Shutdown
VSHDN = 0 (Note 1)
0.05
1
µA
Shutdown Input Bias Current
VSHDN = 0 to VDD (Note 1)
0.1
2.5
µA
Shutdown Logic High
(Note 1)
Shutdown Logic Low
(Note 1)
Input Offset Voltage
Input Offset Voltage
Temperature Coefficient
VOS
0.3 x VDD
(Note 3)
±1
±5
±1
TCVOS
Hysteresis
V
0.7 x VDD
(Note 4)
V
mV
µV/°C
4
mV
IBIAS
8
80
nA
Input Offset Current
IOS
±2
±60
nA
Common-Mode Voltage Range
VCM
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
Input Bias Current
www.maximintegrated.com
Guaranteed by CMRR test
VSS
VDD - 1.1
V
Maxim Integrated │ 2
MAX9030/MAX9031/
MAX9032/MAX9034
Low-Cost, Ultra-Small, Single/Dual/Quad
Single-Supply Comparators
Electrical Characteristics (continued)
(VDD = +5V, VSS = 0, VCM = 0, VSHDN = +5V (Note 1), TA = -40°C to +125°C, unless otherwise noted. Typical values are at
TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
VOL, VOH
Output Voltage-Swing
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
400
UNITS
mV
400
45
ISC
VSHDN ≤ (0. 3 x VDD), VOUT = 0 to VDD
(Note 1)
Shutdown Mode Output
Leakage
Propagation Delay
MAX
tPD+, tPDtR, tF
RL = 10kΩ,
CL = 15pF (Note 5)
mA
±0.01
VOD = 10mV
228
VOD = 100mV
188
±3.5
µA
ns
VDD = +5V, RL = 10kΩ, CL = 15pF (Note 6)
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
Rise/Fall-Time
Maximum Capacitive Load
Note
Note
Note
Note
Note
Note
CL
1: MAX9030 only.
2: All devices are production tested at +25°C. All temperature limits are guaranteed by design.
3: Comparator Input Offset is defined as the center of the hysteresis zone.
4: Hysteresis is defined as the difference of the trip points required to change comparator output states.
5: VOD is the overdrive that is beyond the offset and hysteresis-determined trip points.
6: 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.)
34
32
36
35
34
100
33
30
28
37
1000
SUPPLY CURRENT (µA)
36
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
MAX9030/1/2/4 toc03
SUPPLY CURRENT
vs. TEMPERATURE
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
2.5
3.0
3.5
4.0
4.5
SUPPLY VOLTAGE (V)
www.maximintegrated.com
5.0
5.5
32
-50
-25
0
25
50
75
TEMPERATURE (°C)
100
125
10
10
100
1k
10k
100k
1M
OUTPUT TRANSITION FREQUENCY (Hz)
Maxim Integrated │ 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.)
OUTPUT HIGH VOLTAGE
vs. SOURCE CURRENT
0.1
0
-0.1
-0.2
-0.3
160
-0.5
-50
-25
0
25
50
75
100
100
80
60
40
120
100
80
60
40
20
0
125
140
0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
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)
35
30
-50
-25
0
25
50
75
100
45
40
35
30
125
-50
-25
0
25
50
75
100
PROPAGATION DELAY vs. CAPACITIVE LOAD
(VDD = +5V)
PROPAGATION DELAY vs. TEMPERATURE
240
tPD-
220
200
tPD+
180
160
140
280
260
240
200
160
140
100
100
25
50
75
100
CAPACITIVE LOAD (pF)
www.maximintegrated.com
125
150
tPD+
180
120
0
tPD-
220
120
MAX9030/1/2/4 toc09
200
180
160
140
0
25
50
75
100
125
150
CAPACITIVE LOAD (pF)
300
PROPAGATION DELAY (ns)
MAX9030/1/2/4 toc10
260
220
100
125
TEMPERATURE (°C)
280
240
120
TEMPERATURE (°C)
300
260
PROPAGATION DELAY
vs. INPUT OVERDRIVE VOLTAGE
300
MAX9030/1/2/4 toc12
40
50
280
PROPAGATION DELAY (ns)
45
55
300
275
PROPAGATION DELAY (ns)
50
60
MAX9030/1/2/4 toc08
MAX9030/1/2/4 toc07
55
SHORT-CIRCUIT SOURCE CURRENT (mA)
TEMPERATURE (°C)
60
SHORT-CIRCUIT SINK CURRENT (mA)
120
160
20
-0.4
PROPAGATION DELAY (ns)
140
180
MAX9030/1/2/4 toc06
0.2
MAX9030/1/2/4 toc05
0.3
MAX9030/1/2/4 toc11
INPUT OFFSET VOLTAGE (mV)
0.4
180
VDD - VOUT
OUTPUT HIGH VOLTAGE (mV)
MAX9030/1/2/4 toc04
0.5
OUTPUT LOW VOLTAGE
vs. SINK CURRENT
OUTPUT LOW VOLTAGE (mV)
INPUT OFFSET VOLTAGE
vs. TEMPERATURE
250
tPD-
225
200
tPD+
175
150
125
100
75
-50
-25
0
25
50
75
TEMPERATURE (°C)
100
125
50
0
20
40
60
80
100
120
140
INPUT OVERDRIVE VOLTAGE (mV)
Maxim Integrated │ 4
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
TIME (200ns/div)
TIME (2µs/div)
MAX9030/1/2/4 toc15
IN+ - IN5V/div
OUT
5V/div
MAX9030/1/2/4 toc16
SINUSOID 1MHz RESPONSE AT 1.25MHz
VOD = 100mV
OUTPUT SWITCHING CURRENT, FALLING
IN+ - IN100mV/div
OUT
2V/div
SWITCHING
CURRENT
50µA/div
TIME (100ns/div)
TIME (1µs/div)
SINUSOID 1MHz RESPONSE AT 1.25MHz
VOD = 10mV
IN+ - IN10mV/div
MAX9030/1/2/4 toc18
MAX9030/1/2/4 toc17
POWER-UP DELAY
VDD
2.5V/div
OUT
2V/div
OUT
TIME (100ns/div)
www.maximintegrated.com
TIME (200ns/div)
Maxim Integrated │ 5
MAX9030/MAX9031/
MAX9032/MAX9034
Low-Cost, Ultra-Small, Single/Dual/Quad
Single-Supply Comparators
Pin Description
PIN
NAME
FUNCTION
MAX9030
MAX9031
MAX9032
MAX9034
1
1
—
—
IN+
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
Comparator Noninverting Input
Comparator Output
Shutdown
Positive Supply Voltage. Bypass with a 0.1µF capacitor.
—
—
1
1
OUTA
—
—
2
2
INA-
Comparator A Inverting Input
Comparator A Output
—
—
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-
—
—
—
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 x VDD applied
www.maximintegrated.com
Comparator D Inverting Input
Comparator D Output
to SHDN places the device in the shutdown mode. A minimum logic high voltage of 0.7V x VDD 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 │ 6
MAX9030/MAX9031/
MAX9032/MAX9034
R1
VREF
R2
Low-Cost, Ultra-Small, Single/Dual/Quad
Single-Supply Comparators
VDD
VDD
VDD
VDD
VIN
IN+
OUT
VIN
IN+
OUT
10kΩ
IN-
IN-
MAX9031
0.1µF
MAX9031
VSS
VSS
Figure 1. Additional Hysteresis
Figure 2. Time Averaging of the Input Signal for Data Recovery
1) Find the trip points of the comparator using these
formulas:
Board Layout and Bypassing
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
and
VTL = 2.5[1 - (R2 / (R1 + R2))]
4) Select R2. In this example, we will choose 1kΩ.
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 timeaveraged 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)
where ƒCAR is the fundamental carrier frequency of the
digital data stream.
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 rail-torail output swing. If the output is significantly loaded, the
results should be corrected.
www.maximintegrated.com
Maxim Integrated │ 7
MAX9030/MAX9031/
MAX9032/MAX9034
Low-Cost, Ultra-Small, Single/Dual/Quad
Single-Supply Comparators
Typical Application Circuit
VDD
0.1F
VIN
R1
VDD
IN+
VIN
OUT
VREF
IN-
R2
RL
MAX9031
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.
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
21-0041
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
www.maximintegrated.com
Maxim Integrated │ 8
MAX9030/MAX9031/
MAX9032/MAX9034
Low-Cost, Ultra-Small, Single/Dual/Quad
Single-Supply Comparators
Revision History
REVISION
NUMBER
REVISION
DATE
0
10/00
DESCRIPTION
Initial release
PAGES
CHANGED
—
1
5/10
Removed future product reference and added lead-free parts
1
2
8/12
Added MAX9032ASA/V+ to data sheet
1
3
4/19
Updated Package Information table
8
For pricing, delivery, and ordering information, please visit Maxim Integrated’s online storefront at https://www.maximintegrated.com/en/storefront/storefront.html.
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 and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
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