MAX9031_12 [MAXIM]
Low-Cost, Ultra-Small, Single/Dual/Quad Single-Supply Comparators;
| 型号： | MAX9031_12 |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Low-Cost, Ultra-Small, Single/Dual/Quad Single-Supply Comparators |
| 文件： | 总9页 (文件大小：238K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MAX9030/MAX9031/
MAX9032/MAX9034
Low-Cost, Ultra-Small, Single/Dual/Quad
Single-Supply Comparators
General Description
Features
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 oper-
ated 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 oper-
ating temperature range. The combination of low-
power, single-supply operation down to +2.5V, and
ultra-small footprint makes these devices ideal for
portable applications.
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
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 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.
o Space-Saving Packages
5-Pin SC70 (MAX9031)
6-Pin SC70 (MAX9030)
8-Pin SOT23 (MAX9032)
14-Pin TSSOP (MAX9034)
Ordering Information
PART
TEMP. RANGE
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
PIN-PACKAGE
6 SC70
MAX9030AXT+T
MAX9030AUT+T
MAX9031AXK+T
MAX9031AUK+T
MAX9032AKA+T
MAX9032AUA+
MAX9032ASA+
MAX9032ASA/V+
MAX9034AUD+
MAX9034ASD+
6 SOT23
5 SC70
The MAX9030 single comparator with shutdown is avail-
able in the space-saving 6-pin SC70 and SOT23 pack-
ages. The MAX9031 single comparator is available in tiny
5-pin SC70 and SOT23 packages. The MAX9032 dual
5 SOT23
8 SOT23
8 µMAX
8 SO
®
comparator is available in 8-pin SOT23 and µMAX
packages, and the MAX9034 quad comparator is avail-
able in a 14-pin TSSOP package.
________________________Applications
8 SO
Battery-Powered
Portable Systems
Digital Line Receivers
14 TSSOP
14 SO
Keyless Entry Systems
Mobile Communications
Sensor Signal Detection
Photodiode Preamps
+Denotes a lead-free(Pb)/RoHS-compliant package.
T = Tape and reel.
/V denotes an automotive qualified package.
Threshold Detectors/
Discriminators
Typical Application Circuit appears at end of data sheet.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
Pin Configurations
TOP VIEW
OUTA
INA-
1
2
3
4
5
6
7
14 OUTD
13 IND-
12 IND+
OUTA
INA-
1
2
3
4
8
7
6
5
V
DD
IN+
1
2
3
5
4
V
DD
IN+
1
2
3
6
5
4
V
DD
OUTB
INB-
MAX9031
MAX9030
MAX9032
INA+
V
V
SS
SHDN
OUT
SS
INA+
V
DD
11
V
SS
MAX9034
V
INB+
SS
INB+
INB-
10 INC+
IN-
OUT
IN-
9
8
INC-
SOT23/µMAX/SO
SC70/SOT23
SC70/SOT23
OUTB
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
Supply Voltage (V
to V ) ....................................-0.3V to +6V
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
DD
SS
Voltage Inputs (IN+, IN- to V ). ................-0.3V to (V
+ 0.3V)
SS
DD
Differential Input Voltage (IN+ to IN-) .................................+6.6V
Output Short-Circuit
Duration ...............................................2s to Either V
or V
DD
SS
Current into Any Pin ............................................................20mA
Continuous Power Dissipation (T = +70°C) ...............................
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
A
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
= +5V (Note 1), T = -40°C to +125°C, unless otherwise noted. Typical values are at
SHDN A
(V
= +5V, V
= +25°C.) (Note 2)
= 0, V
= 0, V
DD
SS
CM
T
A
PARAMETER
SYMBOL
CONDITIONS
Guaranteed by PSRR test
MIN
TYP
MAX
5.5
55
UNITS
V
2.5
Operating Voltage Range
V
DD
DD
Supply Current per Comparator
Supply Current in Shutdown
Shutdown Input Bias Current
Shutdown Logic High
I
35
0.05
0.1
µA
µA
µA
V
V
V
= 0 (Note 1)
1
S HDN
S HDN
= 0 to V
(Note 1)
2.5
DD
0.7 × V
(Note 1)
(Note 1)
(Note 3)
DD
0.3 × V
Shutdown Logic Low
V
DD
Input Offset Voltage
V
1
1
5
mV
OS
Input Offset Voltage
Temperature Coefficient
TCV
µV/°C
OS
Hysteresis
(Note 4)
4
8
2
mV
nA
nA
V
Input Bias Current
I
80
60
BIAS
Input Offset Current
Common-Mode Voltage Range
Common-Mode Rejection Ratio
I
OS
V
Guaranteed by CMRR test
V
V
- 1.1
CM
SS
DD
CMRR
PSRR
V
SS
≤ V ≤ (V - 1.1V), V = +5.5V
72
72
100
100
dB
CM
DD
DD
Power-Supply Rejection Ratio
V
= +2.5V to +5.5V
dB
DD
Maxim Integrated
2
MAX9030/MAX9031/MAX9032/MAX9034
Low-Cost, Ultra-Small, Single/Dual/Quad
Single-Supply Comparators
ELECTRICAL CHARACTERISTICS (continued)
= +5V (Note 1), T = -40°C to +125°C, unless otherwise noted. Typical values are at
SHDN A
(V
= +5V, V
= +25°C.) (Note 2)
= 0, V
= 0, V
DD
SS
CM
T
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
2
MAX
400
UNITS
I
I
I
I
= 10µA
= 4mA
SOURCE
SOURCE
V
(V
= V
IN+
- V
,
OH
DD
OUT
- V ) ≥ 20mV
IN-
165
2
Output Voltage-Swing
V
, V
OL OH
mV
= 10µA
SINK
SINK
V
= V
- V
SS
,
OL
OUT
(V - V ) ≥ 20mV
IN-
IN+
= 4mA
165
45
400
Output Short-Circuit Current
I
mA
SC
Shutdown Mode Output
Leakage
V
≤ (0.3 × V ), V
= 0 to V
OUT DD
SHDN
DD
0.01
3.5
µA
(Note 1)
V
V
= 10mV
228
188
20
R = 10kΩ,
C = 15pF (Note 5)
L
OD
OD
L
Propagation Delay
t
, t
ns
PD+ PD-
= 100mV
Rise/Fall-Time
t , t
V
= +5V, R = 10kΩ, C = 15pF (Note 6)
ns
ns
ns
ns
pF
R
F
DD
L
L
Shutdown Delay Time ON/OFF
Shutdown Delay Time OFF/ON
Power-On Time
(Note 1)
(Note 1)
40
400
200
150
R = 10kΩ, C = 15pF
L
L
Maximum Capacitive Load
C
No sustained oscillations
L
Note 1: MAX9030 only.
Note 2: All devices are production tested at +25°C. All temperature limits are guaranteed by design.
Note 3: Comparator Input Offset is defined as the center of the hysteresis zone.
Note 4: Hysteresis is defined as the difference of the trip points required to change comparator output states.
Note 5: V
is the overdrive that is beyond the offset and hysteresis-determined trip points.
Note 6: Rise and fall times are measured between 10% and 90% at OUT.
OD
Typical Operating Characteristics
(V
= +5V, V = 0, V
= 0, R = 10kΩ, C = 15pF, V = 100mV, T = +25°C, unless otherwise noted.)
DD
SS
CM
L
L
A
OD
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
SUPPLY CURRENT
vs. TEMPERATURE
SUPPLY CURRENT
vs. OUTPUT TRANSITION FREQUENCY
40
38
36
34
32
30
28
38
37
36
35
34
33
32
1000
100
10
2.5
3.0
3.5
4.0
4.5
5.0
5.5
-50 -25
0
25
50
75 100 125
100
10k
100k
1M
10
1k
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
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)
(V
= +5V, V = 0, V
= 0, R = 10kΩ, C = 15pF, V
= 100mV, T = +25°C, unless otherwise noted.)
A
OD
DD
SS
CM
L
L
OUTPUT LOW VOLTAGE
vs. SINK CURRENT
OUTPUT HIGH VOLTAGE
vs. SOURCE CURRENT
INPUT OFFSET VOLTAGE
vs. TEMPERATURE
180
160
140
120
100
80
180
160
140
120
100
80
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
60
60
40
40
20
20
0
0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
SINK CURRENT (mA)
-50 -25
0
25
50
75 100 125
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
SOURCE CURRENT (mA)
TEMPERATURE (°C)
PROPAGATION DELAY vs. CAPACITIVE LOAD
OUTPUT SHORT-CIRCUIT (SINK) CURRENT
vs. TEMPERATURE
OUTPUT SHORT-CIRCUIT (SOURCE) CURRENT
vs. TEMPERATURE
60
(V = 2.7V)
DD
300
60
55
50
45
40
35
30
280
260
240
220
200
180
160
140
120
100
55
50
45
40
35
30
0
25
50
75
100
125
150
-50 -25
0
25
50
75 100 125
-50 -25
0
25
50
75 100 125
CAPACITIVE LOAD (pF)
TEMPERATURE (°C)
TEMPERATURE (°C)
PROPAGATION DELAY
PROPAGATION DELAY vs. CAPACITIVE LOAD
vs. INPUT OVERDRIVE VOLTAGE
(V = +5V)
PROPAGATION DELAY vs. TEMPERATURE
DD
300
300
275
250
225
200
175
150
125
100
75
300
280
260
240
220
200
180
160
140
120
100
280
260
240
220
200
180
160
140
120
100
t
PD-
t
t
PD-
PD-
t
PD+
t
PD+
t
PD+
50
0
25
50
75
100
125
150
0
20
40
60
80 100 120 140
-50 -25
0
25
50
75 100 125
CAPACITIVE LOAD (pF)
INPUT OVERDRIVE VOLTAGE (mV)
TEMPERATURE (°C)
Maxim Integrated
4
MAX9030/MAX9031/MAX9032/MAX9034
Low-Cost, Ultra-Small, Single/Dual/Quad
Single-Supply Comparators
Typical Operating Characteristics (continued)
(V
= +5V, V = 0, V
SS
= 0, R = 10kΩ, C = 15pF, V
= 100mV, T = +25°C, unless otherwise noted.)
A
OD
DD
CM
L
L
PROPAGATION DELAY
OUTPUT SWITCHING CURRENT, RISING
IN+ - IN-
5V/div
IN+ - IN-
200mV/div
OUT
5V/div
SWITCHING
CURRENT
200µA/div
OUT
2V/div
TIME (200ns/div)
TIME (2µs/div)
SINUSOID 1MHz RESPONSE AT 1.25MHz
V
OD
= 100mV
OUTPUT SWITCHING CURRENT, FALLING
IN+ - IN-
5V/div
IN+ - IN-
100mV/div
OUT
5V/div
OUT
2V/div
SWITCHING
CURRENT
50µA/div
TIME (100ns/div)
TIME (1µs/div)
SINUSOID 1MHz RESPONSE AT 1.25MHz
V
OD
= 10mV
POWER-UP DELAY
IN+ - IN-
10mV/div
V
DD
2.5V/div
OUT
2V/div
OUT
TIME (100ns/div)
TIME (200ns/div)
Maxim Integrated
5
MAX9030/MAX9031/MAX9032/MAX9034
Low-Cost, Ultra-Small, Single/Dual/Quad
Single-Supply Comparators
Pin Description
PIN
MAX9032
NAME
FUNCTION
MAX9030
MAX9031
MAX9034
1
2
1
—
4
—
11
—
—
—
4
IN+
Comparator Noninverting Input
2
V
Negative Supply Voltage. Bypass with a 0.1µF capacitor.
Comparator Inverting Input
Comparator Output
SS
3
3
—
—
—
8
IN-
4
4
OUT
5
—
5
SHDN
Shutdown
6
V
Positive Supply Voltage. Bypass with a 0.1µF capacitor.
Comparator A Output
DD
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1
1
OUTA
INA-
2
2
Comparator A Inverting Input
Comparator A Noninverting Input
Comparator B Noninverting Input
Comparator B Inverting Input
Comparator B Output
3
3
INA+
INB+
INB-
5
5
6
6
7
7
OUTB
OUTC
INC-
—
—
—
—
—
—
8
Comparator C Output
9
Comparator C Inverting Input
Comparator C Noninverting Input
Comparator D Noninverting Input
Comparator D Inverting Input
Comparator D Output
10
12
13
14
INC+
IND+
IND-
OUTD
applied to SHDN places the device in the shutdown
Detailed Description
ꢀ
mode. A minimum logic high voltage of 0.7V
V
DD
The MAX9030/MAX9031/MAX9032/MAX9034 are sin-
gle/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.
applied to SHDN will enable normal operation. To dis-
able shutdown, connect SHDN to V
.
DD
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 volt-
age is related to the output voltage.
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 imped-
These comparators have 4mV internal hysteresis.
Additional hysteresis can be generated with two resis-
tors using positive feedback (Figure 1). Use the follow-
ing procedure to calculate resistor values:
ance and typically draws 0.1µA when connected to V
SS
ꢀ
or V . A maximum logic low voltage of 0.3V
DD
V
DD
Maxim Integrated
6
MAX9030/MAX9031/MAX9032/MAX9034
Low-Cost, Ultra-Small, Single/Dual/Quad
Single-Supply Comparators
V
DD
R1
V
DD
V
DD
V
DD
R2
IN+
IN-
IN+
IN-
V
IN
V
REF
OUT
OUT
10kΩ
V
IN
MAX9031
0.1µF
V
SS
MAX9031
V
SS
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
Use 100nF bypass as a starting point. Minimize signal
trace lengths to reduce stray capacitance. Minimize the
capacitive coupling between IN- and OUT. For slow-
moving input signals (rise-time > 1ms), use a 1nF
capacitor between IN+ and IN-.
V
TH
= V
+ [((V
REF
- V
)R2) / (R1 + R2)
REF
REF
= V
DD
V
(1 - (R2 / (R1 + R2))]
TL
where V is the threshold voltage at which the com-
TH
parator switches its output from high to low as V
IN
Biasing for Data Recovery
rises above the trip point. V is the threshold volt-
TL
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:
age at which the comparator switches its output from
low to high as V drops below the trip point.
IN
2) The hysteresis band will be:
V
HYS
= V - V = V (R2 / (R1 + R2))
TH TL DD
3) In this example, let V
= +5V and V
= +2.5V.
DD
REF
V
TH
= 2.5V + 2.5(R2 / (R1 + R2))V
ƒ
CAR
>> 1 / (2πR1C1)
and
where ƒ
is the fundamental carrier frequency of the
CAR
V
= 2.5[1 - (R2 / (R1 + R2))]
TL
digital data stream.
4) Select R2. In this example, we will choose 1kΩ.
5) Select V . In this example, we will choose 50mV.
HYS
6) Solve for R1.
V
HYS
= V (R2 / (R1 + R2))
DD
0.050V = 5(1000Ω/(R1 + 1000Ω))V
where R1 ≈ 100kΩ, V = 2.525V, and V = 2.475V.
TH
TL
The above-described design procedure assumes rail-
to-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
V
DD
0.1µF
V
IN
R1
V
V
DD
IN+
IN-
IN
OUT
V
REF
R
L
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.
LAND
PACKAGE TYPE
PACKAGE CODE
OUTLINE NO.
PATTERN NO.
90-0188
5 SC70
6 SC70
5 SOT23
6 SOT23
8 SOT23
8 SO
X5+1
X6SN+1
U5+1
21-0076
21-0077
21-0057
21-0058
21-0078
21-0262
21-0041
21-0036
21-0066
90-0189
90-0174
90-0175
90-0176
90-0096
90-0112
90-0092
90-0113
U6SN+1
K8+5
S8+2
14 SO
S14+1
U8+1
8 µMAX
14 TSSOP
U14+1
Maxim Integrated
8
MAX9030/MAX9031/MAX9032/MAX9034
Low-Cost, Ultra-Small, Single/Dual/Quad
Single-Supply Comparators
Revision History
REVISION REVISION
PAGES
CHANGED
DESCRIPTION
NUMBER
DATE
0
1
2
10/00
5/10
8/12
Initial release
—
1
Removed future product reference and added lead-free parts
Added MAX9032ASA/V+ to data sheet
1
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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