19-1569; Rev 5; 1/07
Micropower, Single-Supply, UCSP/SOT23
Comparator + Precision Reference ICs
Features
The MAX9039–MAX9043 and MAX9050–MAX9053 feature combinations of low-power comparators and precision voltage references. Their operating voltage range
makes them ideal for both 3V and 5V systems. The
MAX9039/MAX9040/MAX9041/MAX9050/MAX9051
have a single comparator and reference consuming
only 40µA of supply current. The MAX9042/MAX9043/
MAX9052/MAX9053 have dual comparators and one
reference, and consume only 55µA of supply current.
Low-voltage operation and low supply current make
these devices ideal for battery-operated systems.
♦ Comparator + Precision Reference in UCSP/SOT23
The comparators feature rail-to-rail inputs and outputs,
with a common-mode input voltage range that extends
250mV beyond the supply rails. Input bias current is
typically 1.0pA, and input offset voltage is typically
0.5mV. Internal hysteresis ensures clean output switching, even with slow-moving input signals. The output
stage features a unique design that limits supply current surges while switching, virtually eliminating supply
glitches typical of many other comparators. This design
also minimizes overall power consumption under
dynamic conditions. The comparator outputs have railto-rail, push-pull output stages that sink and source up
to 8mA. The propagation delay is 400ns, even with the
low-operating supply current.
The reference output voltage is set to 1.23V in the
MAX9039, to 2.048V in the MAX9040–MAX9043, and to
2.500V in the MAX9050–MAX9053. The MAX9040–
MAX9043 and the MAX9050–MAX9053 are offered in
two grades: an A grade with 0.4% initial accuracy and
6ppm/°C tempco, and a B grade with 1% initial accuracy and 100ppm/°C tempco. The voltage references
feature a proprietary curvature-correction circuit and
laser-trimmed thin-film resistors. These series-mode references can sink or source up to 500µA of load current.
Applications
Precision Battery
Management
♦ 2.5V to 5.5V Single-Supply Operation
(MAX9039–MAX9043)
♦ Low Supply Current (MAX9039/MAX9040/
MAX9041/MAX9050/MAX9051)
40µA Quiescent
50µA with 100kHz Switching
♦ 400ns Propagation Delay
♦ Rail-to-Rail Inputs
♦ Rail-to-Rail Output Stage Sinks and Sources 8mA
♦ Internal ±3mV Hysteresis
♦ Voltage Reference Offers:
±0.4% (max) Initial Accuracy (A grade)
6ppm/°C (typ) Temperature Coefficient (A grade)
Stable for 0 to 4.7nF Capacitive Loads
Ordering Information
PART
TEMP RANGE
PINPACKAGE
TOP
MARK
MAX9039BEBT-T* -40°C to +85°C
6 UCSP-6
AAZ
MAX9040AEUK-T -40°C to +85°C
5 SOT23-5
ADNW
MAX9040BEUK-T -40°C to +85°C
5 SOT23-5
ADNX
MAX9041AEUT-T
-40°C to +85°C
6 SOT23-6
AAHF
MAX9041BEUT-T
-40°C to +85°C
6 SOT23-6
AAHH
MAX9041AESA
-40°C to +85°C
8 SO
—
MAX9041BESA
-40°C to +85°C
8 SO
—
*UCSP reliability is integrally linked to the user’s assembly
methods, circuit board material, and environment. Refer to the
UCSP Reliability section of this data sheet for more information.
Ordering Information continued at end of data sheet.
Selector Guide appears at end of data sheet.
Pin Configurations
TOP VIEW (BUMPS ON BOTTOM)
TOP VIEW
Level Translators
Digital Line Receivers
IN+
B1
A1
VEE
OUT 1
IN-
B2
A2
OUT
VEE 2
REF
B3
A3
VCC
IN+ 3
Window Comparators
IR Receivers
Typical Operating Circuit and Functional Diagrams appear
at end of data sheet.
MAX9039
UCSP
UCSP is a trademark of Maxim Integrated Products, Inc.
5
VCC
4
REF
MAX9040
MAX9050
SOT23-5
Pin Configurations continued at end of data sheet.
________________________________________________________________ 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
MAX9039–MAX9043/MAX9050–MAX9053
General Description
MAX9039–MAX9043/MAX9050–MAX9053
Micropower, Single-Supply, UCSP/SOT23
Comparator + Precision Reference ICs
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VCC to VEE) ....................................-0.3V to +6V
All Other Pins ...................................(VEE - 0.3V) to (VCC + 0.3V)
Current into Input Pins ......................................................±20mA
Output Short-Circuit Duration
(OUT_, REF) ...............Indefinite Short Circuit to Either Supply
Continuous Power Dissipation (TA = +70°C)
5-Pin SOT23 (derate 7.10mW/°C above +70°C)..........571mW
6-Bump UCSP (derate 3.9mW/°C above +70°C) ........308mW
6-Pin SOT23 (derate 8.70mW/°C above +70°C)..........696mW
8-Pin SO (derate 5.88mW/°C above +70°C)................471mW
8-Pin µMAX (derate 4.1mW/°C above +70°C) .............330mW
10-Pin µMAX (derate 5.6mW/°C above +70°C) ...........444mW
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
Bump Reflow Temperature (Note 1) ................................+235°C
Note 1: This device is constructed using a unique set of packaging techniques that impose a limit on the thermal profile the device
can be exposed to during board-level solder attach and rework. This limit permits only the use of the solder profiles recommended in the industry-standard specification, JEDEC 020A, paragraph 7.6, Table 3 for IR/VPR and Convection Packaging
Reflow. Preheating is required. Hand or wave soldering is not allowed.
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—A Grade (0.4% Initial Accuracy)
(VCC = +5V, VEE = 0V, VCM = 0V, IOUT = 0A, IREF = 0A, TA = TMIN to TMAX, unless otherwise noted. Typical values are at
TA = +25°C.) (Note 2)
PARAMETER
Supply Voltage Range (Note 3)
SYMBOL
VCC
CONDITIONS
ICC
TYP
MAX
2.5
5.5
MAX9050–MAX9053
2.7
5.5
MAX9040/MAX9041/
MAX9050/MAX9051
Supply Current
MIN
MAX9040–MAX9043
MAX9042/MAX9043/
MAX9052/MAX9053
VCC = 2.7V
47
67
VCC = 5V
52
72
VCC = 2.7V
55
80
VCC = 5V
60
85
±0.5
±5.0
UNITS
V
µA
COMPARATORS
Input Offset Voltage (Note 4)
Input Hysteresis
Input Bias Current
(Notes 5, 6, 7)
Input Offset Current (Note 5)
Common-Mode Voltage Range
(Notes 5, 8)
VOS
mV
TA = -40°C to +85°C
±7.0
±3.0
IB
Specified common-mode range
±0.001
IOS
Specified common-mode range
±0.5
CMVR
CMRR
Power-Supply Rejection Ratio
PSRR
ISC
Output Voltage Low
VOL
mV
±10.0
VCC +
0.25
TA = -40°C to +85°C
VEE
VCC
Specified common-mode range
52
80
MAX9040–MAX9043, 2.5V ≤ VCC ≤ 5.5V
55
80
MAX9050–MAX9053, 2.5V ≤ VCC ≤ 5.5V
55
80
VOUT = VEE or VCC
95
VCC = 2.7V
35
dB
pF
mA
VCC = 5V, ISINK = 8mA
0.2
0.55
VCC = 2.7V, ISINK = 3.5mA
0.15
0.4
_______________________________________________________________________________________
V
dB
2.5
VCC = 5V
nA
pA
VEE 0.25
TA = +25°C
CIN
Output Short-Circuit Current
2
TA = +25°C
VHYST
Common-Mode Rejection Ratio
(Note 5)
Input Capacitance (Note 5)
Over entire
common-mode
range
V
Micropower, Single-Supply, UCSP/SOT23
Comparator + Precision Reference ICs
(VCC = +5V, VEE = 0V, VCM = 0V, IOUT = 0A, IREF = 0A, TA = TMIN to TMAX, unless otherwise noted. Typical values are at
TA = +25°C.) (Note 2)
PARAMETER
Output Voltage High
Output Rise/Fall Times
Output Propagation Delay
(Note 9)
Power-Up Time
SYMBOL
VOH
tR/tF
tPD+/
tPDtPU
CONDITIONS
MIN
TYP
VCC = 5V, ISOURCE = 8mA
4.45
4.85
VCC = 2.7V, ISOURCE = 3.5mA
2.3
2.55
CL = 15pF
40
CL = 50pF
50
CL = 200pF
80
CL = 15pF,
VCC = 2.7V
50mV overdrive
450
100mV overdrive
400
Time to VOUT valid logic state
MAX
UNITS
V
ns
ns
20
µs
VOLTAGE REFERENCE
Output Voltage
VREF
MAX9040–MAX9043
2.040
2.048
2.056
MAX9050–MAX9053
2.490
2.500
2.510
µMAX/SO
6
30
SOT23
6
50
TA = +25°C
Output Voltage Temperature
Coefficient (Note 10)
TCVREF
Line Regulation
∆VREF/
∆VCC
2.5V ≤ VCC ≤ 5.5V, MAX9040–MAX9043
+50
+200
2.7V ≤ VCC ≤ 5.5V, MAX9050–MAX9053
+50
+200
Load Regulation
∆VREF/
∆IREF
Sourcing. 0µA ≤ IREF ≤ 500µA
2
4
Sinking, -500µA ≤ IREF ≤ 0µA
3.5
6
Output Short-Circuit Current
ISC
Thermal Hysteresis (Note 11)
THYST
Long-Term Stability
Noise Voltage
1000h at TA = +25°C
EOUT
∆VREF/
∆VCC
Ripple Rejection
VREF = VEE or VCC
Turn-On Settling Time
tR(VREF)
Capacitive-Load Stability Range
(Note 7)
CL(VREF)
V
ppm/°C
µV/V
µV/µA
4
mA
130
ppm
50
ppm
f = 0.1Hz to 10Hz
40
µVP-P
f = 10Hz to 10kHz
105
µVRMS
VCC = 5V ±100mV, f = 120Hz
84
dB
To VREF = 1% of final value
200
µs
0
4.7
nF
ELECTRICAL CHARACTERISTICS—B Grade (1% Initial Accuracy)
(VCC = 5V, VEE = 0V, VCM = 0V, IOUT = 0A, IREF = 0A, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
(Note 2)
PARAMETER
Supply Voltage Range (Note 3)
Supply Current
SYMBOL
VCC
ICC
CONDITIONS
MIN
TYP
MAX
MAX9039–MAX9043
2.5
5.5
MAX9050–MAX5053
MAX9039/MAX9040/
MAX9041/MAX9050/
MAX9051
2.7
5.5
MAX9042/MAX9043/
MAX9052/MAX5053
VCC = 2.7V
40
VCC = 5.0V
45
VCC = 2.7V
55
VCC = 5.0V
60
100
UNITS
V
µA
130
_______________________________________________________________________________________
3
MAX9039–MAX9043/MAX9050–MAX9053
ELECTRICAL CHARACTERISTICS—A Grade (0.4% Initial Accuracy) (continued)
MAX9039–MAX9043/MAX9050–MAX9053
Micropower, Single-Supply, UCSP/SOT23
Comparator + Precision Reference ICs
ELECTRICAL CHARACTERISTICS—B Grade (1% Initial Accuracy) (continued)
(VCC = 5V, VEE = 0V, VCM = 0V, IOUT = 0A, IREF = 0A, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
(Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
±1
±9.0
mV
COMPARATOR
Input Offset Voltage (Note 4)
Input Hysteresis
Input Bias Current (Notes 5, 6, 7)
Input Offset Current (Note 5)
VOS
Over entire common-mode range
VHYST
±3.0
IB
Specified common-mode range
±0.001
IOS
Specified common-mode range
±0.5
Common-Mode Voltage Range
(Notes 5, 8)
CMVR
Common-Mode Rejection Ratio
(Note 5)
CMRR
Power-Supply Rejection Ratio
PSRR
Input Capacitance (Note 5)
CIN
Output Short-Circuit Current
ISC
Output Voltage Low
VOL
Output Voltage High
VOH
Output Rise/Fall Times
tR/tF
VEE
52
80
MAX9039–MAX9043, 2.5V ≤ VCC ≤ 5.5V
55
80
MAX9050–MAX9053, 2.7V ≤ VCC ≤ 5.5V
55
80
VCC = 5V
95
VCC = 2.7V
35
VCC = 5V, ISINK = 8mA
0.2
VCC = 2.7V, ISINK = 3.5mA
0.15
VCC = 5V, ISOURCE = 8mA
4.45
VCC = 2.7V, ISOURCE = 3.5mA
Power-Up Time
tPD+/tPDtPU
dB
pF
mA
0.55
4.85
V
V
2.55
40
CL = 50pF
50
CL = 200pF
80
CL = 15pF,
VCC = 2.7V
V
dB
2.5
VOUT = VEE or VCC
nA
pA
VCC
Specified common-mode range
CL = 15pF
Output Propagation Delay
(Note 9)
mV
±25.0
50mV overdrive
450
100mV overdrive
400
Time to VOUT valid logic state
ns
ns
20
µs
VOLTAGE REFERENCE
Output Voltage
VREF
Output Voltage Temperature
Coefficient (Note 10)
TCVREF
Line Regulation
∆VREF/
∆VCC
Load Regulation
∆VREF/
∆IREF
Output Short-Circuit Current
ISC
Thermal Hysteresis (Note 11)
THYST
Long-Term Stability
Noise Voltage
4
EOUT
MAX9039
1.218
1.230
1.242
MAX9040–MAX9043
2.028
2.048
2.068
MAX9050–MAX9053
2.475
2.500
2.525
20
100
MAX9039–MAX9043
+50
+200
MAX9050–MAX9053
+50
+200
Sourcing: 0µA ≤ IREF ≤ 500µA
2
4
Sinking: -500µA ≤ IREF ≤ 0µA
3.5
6
TA = +25°C
2.5V ≤ VCC ≤ 5.5V
VREF = VEE or VCC
V
ppm/°C
µV/V
µV/µA
4
mA
130
ppm
1000h at TA = +25°C
100
ppm
f = 0.1Hz to 10Hz
40
µVP-P
f = 10Hz to 10kHz
105
µVRMS
_______________________________________________________________________________________
Micropower, Single-Supply, UCSP/SOT23
Comparator + Precision Reference ICs
(VCC = 5V, VEE = 0V, VCM = 0V, IOUT = 0A, IREF = 0A, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
(Note 2)
PARAMETER
SYMBOL
∆VREF/
∆VCC
Ripple Rejection
Turn-On Settling Time
tR(VREF)
Capacitive Load Stability Range
(Note 7)
CL(VREF)
CONDITIONS
MIN
TYP
MAX
UNITS
VCC = 5V ±100mV, f = 120Hz
84
dB
To VREF = 1% of final value
200
µs
0
4.7
nF
Note 2: All devices are 100% production tested at TA = +25°C. Limits over the extended temperature range are guaranteed by
design.
Note 3: Supply voltage range guaranteed by PSRR test on comparator and line regulation of REF.
Note 4: VOS is defined as the center of the input-referred hysteresis band.
Note 5: For the comparators with the inverting input (IN-) uncommitted.
Note 6: Input bias current is the average of the inverting and noninverting input bias currents.
Note 7: Not production tested. Guaranteed by design.
Note 8: Guaranteed by CMRR test.
Note 9: VOVERDRIVE is beyond the offset and hysteresis determined trip point.
Note 10: Temperature coefficient is measured by the box method; i.e., the maximum ∆VREF is divided by the maximum ∆T.
Note 11: Thermal hysteresis is defined as the change in VREF at +25°C before and after cycling the device from TMIN to TMAX.
Typical Operating Characteristics
(VCC = 5V, VEE = 0V, VCM = 0V, IOUT = 0A, IREF = 0A, TA = +25°C, unless otherwise noted.)
30
20
VCC = 5.0V
50
VCC = 2.7V
40
30
20
200
MAX9039/43/50-53 toc03
VCC = 2.7V
40
VIN+ > VIN-
SUPPLY CURRENT (µA)
SUPPLY CURRENT (µA)
50
60
MAX9039/43/50-53 toc02
VCC = 5.0V
SUPPLY CURRENT (µA)
VIN+ > VIN-
MAX9039/43/50-53 toc01
60
MAX9039/MAX9040/MAX9041/MAX9050/MAX9051
SUPPLY CURRENT vs. SWITCHING FREQUENCY
MAX9042/MAX9043/MAX9052/MAX9053
SUPPLY CURRENT vs. TEMPERATURE
MAX9039/MAX9040/MAX9041/MAX9050/MAX9051
SUPPLY CURRENT vs. TEMPERATURE
150
100
VCC = 5.0V
50
VCC = 2.7V
10
10
0
0
0
-40
-20
0
20
40
TEMPERATURE (°C)
60
80
-40
-20
0
20
40
TEMPERATURE (°C)
60
80
0.01
0.1
1
10
100
1000
SWITCHING FREQUENCY (kHz)
_______________________________________________________________________________________
5
MAX9039–MAX9043/MAX9050–MAX9053
ELECTRICAL CHARACTERISTICS—B Grade (1% Initial Accuracy) (continued)
Typical Operating Characteristics (continued)
(VCC = 5V, VEE = 0V, VCM = 0V, IOUT = 0A, IREF = 0A, TA = +25°C, unless otherwise noted.)
VCC = 2.7V
100
VCC = 5.0V
1
VCC = 2.7V
0
0.1
1
10
100
1000
0.1
1
0.01
10
0.1
1
10
40
VCC = 2.7V
20
0
80
VCC = 5.0V
600
VOD = 50mV
550
tPD (ns)
60
0
20
40
60
tPD+ TO VOUT = 50%
OF FINAL VALUE
tPD- TO VOUT = 50%
OF FINAL VALUE
500
450
40
tPD+ TO VOUT = 10%
OF FINAL VALUE
VCC = 2.7V
400
20
80
tPD- TO VOUT = 10%
OF FINAL VALUE
350
0
-20
MAX9039/43/50-53 toc09
VIN- > VIN+
OUT SHORTED TO VCC
MAX9039/43/50-53 toc08
100
OUTPUT SOURCE CURRENT (mA)
MAX9039/43/50-53 toc07
PROPAGATION DELAY
vs. CAPACITIVE LOAD (VCC = 2.7V)
60
-40
-20
0
20
40
60
0 100 200 300 400 500 600 700 800 900 1000
80
TEMPERATURE (°C)
TEMPERATURE (°C)
CAPACITIVE LOAD (pF)
PROPAGATION DELAY
vs. CAPACITIVE LOAD (VCC = 5V)
PROPAGATION DELAY
vs. TEMPERATURE
PROPAGATION DELAY
vs. INPUT OVERDRIVE
tPD- TO VOUT = 50%
OF FINAL VALUE
tPD- TO VOUT = 10%
OF FINAL VALUE
350
tPD+ TO VOUT = 50%
OF FINAL VALUE
500
tPD+ TO VOUT = 10%
OF FINAL VALUE
450
300
CAPACITIVE LOAD (pF)
-40
-20
0
700
20
40
TEMPERATURE (°C)
60
600
tPD+, VCC = 5.0V
500
tPD+, VCC = 2.7V
400
tPD-, VCC = 5.0V
300
tPD- TO VOUT = 10%
OF FINAL VALUE
300
0 100 200 300 400 500 600 700 800 900 1000
tPD- TO VOUT = 50%
OF FINAL VALUE
400
350
800
tPD (ns)
550
MAX9039/43/50-53 toc10b
VOD = 50mV
600
900
MAX9039/43/50-53 toc10a
tPD+ TO VOUT = 10%
OF FINAL VALUE
650
tPD (ns)
tPD+ TO VOUT = 50%
OF FINAL VALUE
MAX9039/43/50-53 toc10
VOD = 50mV
500
400
0.1
0.01
OUTPUT SHORT-CIRCUIT CURRENT
vs. TEMPERATURE
80
450
1
OUTPUT SHORT-CIRCUIT CURRENT
vs. TEMPERATURE
VIN+ > VINOUT SHORTED TO VEE
-40
VCC = 5.0V
10
OUTPUT SOURCE CURRENT (mA)
VCC = 5.0V
550
VCC = 2.7V
100
OUTPUT SINK CURRENT (mA)
100
600
1000
SWITCHING FREQUENCY (kHz)
120
650
VIN+ > VIN-
0.1
0.01
OUTPUT SINK CURRENT (mA)
VCC = 5.0V
10
50
6
100
10,000
OUTPUT HIGH VOLTAGE (VCC - VOH) (mV)
150
VIN+ < VIN-
1000
VOL (mV)
SUPPLY CURRENT (µA)
200
10,000
MAX9039/43/50-53 toc05
MAX9039/43/50-53 toc04
250
OUTPUT HIGH VOLTAGE
vs. OUTPUT SOURCE CURRENT
OUTPUT LOW VOLTAGE
vs. OUTPUT SINK CURRENT
MAX9039/43/50-53 toc06
MAX9042/MAX9043/MAX9052/MAX9053
SUPPLY CURRENT vs. SWITCHING FREQUENCY
tPD (ns)
MAX9039–MAX9043/MAX9050–MAX9053
Micropower, Single-Supply, UCSP/SOT23
Comparator + Precision Reference ICs
tPD-, VCC = 2.7V
200
80
0
20 40 60 80 100 120 140 160 180 200
INPUT OVERDRIVE (mV)
_______________________________________________________________________________________
Micropower, Single-Supply, UCSP/SOT23
Comparator + Precision Reference ICs
PROPAGATION DELAY (tPD-)
A
MAX9039/43/50-53 toc13
A
SWITCHING CURRENT (OUT RISING EDGE)
MAX9039/43/50-53 toc12
MAX9039/43/50-53 toc11
PROPAGATION DELAY (tPD+)
A
B
B
C
B
100ns/div
100ns/div
A = IN+, 100mV/div
B = OUT, 5V/div
C = ICC, 1mA/div
POWER-UP DELAY (OUT)
A
MAX9039/43/50-53 toc16
POWER-UP DELAY (REF)
MAX9039/43/50-53 toc15
MAX9039/43/50-53 toc14
SWITCHING CURRENT (OUT FALLING EDGE)
A
100ns/div
A = IN+, 50mV/div
B = OUT, 2V/div
A = IN+, 50mV/div
B = OUT, 2V/div
A
B
B
C
B
C
5µs/div
0.001
MAX9039/43/50-53 toc18
0.75
THREE TYPICAL PARTS
NORMALIZED TO +25°C
0.50
0.25
0
-0.25
-0.50
1
OUTPUT VOLTAGE CHANGE (mV)
IB-
1.00
OUTPUT VOLTAGE CHANGE (mV)
IB+
0.002
MAX9039/43/50-53 tco17
INPUT BIAS CURRENT (nA)
VIN- = 2.0V
MAX9039
REFERENCE OUTPUT VOLTAGE
TEMPERATURE DRIFT
MAX904_/MAX905_
REFERENCE OUTPUT VOLTAGE
TEMPERATURE DRIFT
INPUT BIAS CURRENT
vs. INPUT VOLTAGE
0.003
100µs/div
A = VCC, 2V/div
B = REF, 1V/div
C = REF, 50mV/div, 2.048V OFFSET
A = VCC, 2V/div
B = OUT, 1V/div
MAX9039/43/50-53 toc19
100ns/div
A = IN+, 100mV/div
B = OUT, 5V/div
C = ICC, 1mA/div
THREE TYPICAL PARTS
NORMALIZED TO +25°C
0
-1
-2
-0.75
0
-3
-1.00
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
VIN+ (V)
-40
-20
0
20
40
TEMPERATURE (°C)
60
80
-40
-20
0
20
40
60
80
TEMPERATURE (°C)
_______________________________________________________________________________________
7
MAX9039–MAX9043/MAX9050–MAX9053
Typical Operating Characteristics (continued)
(VCC = 5V, VEE = 0V, VCM = 0V, IOUT = 0A, IREF = 0A, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
(VCC = 5V, VEE = 0V, VCM = 0V, IOUT = 0A, IREF = 0A, TA = +25°C, unless otherwise noted.)
LINE REGULATION
LOAD REGULATION
50
REFERENCE OUTPUT VOLTAGE CHANGE (µV)
100
0
TA = +25°C
-50
TA = -40°C
-100
TA = +85°C
-150
2000
MAX9039/43/50-53 toc21
150
MAX9039/43/50-53 toc20
REFERENCE OUTPUT VOLTAGE CHANGE (µV)
MAX9039–MAX9043/MAX9050–MAX9053
Micropower, Single-Supply, UCSP/SOT23
Comparator + Precision Reference ICs
TA = +85°C
1500
TA = +25°C
1000
TA = -40°C
500
0
-500
-1000
-200
-1500
2.5
3.0
3.5
4.0
4.5
5.0
5.5
-500
INPUT VOLTAGE (V)
-300
-100
100
300
500
LOAD CURRENT (µA)
Pin Description
PIN
MAX9039
MAX9040
MAX9050
UCSP
SOT23
SOT23
A2
1
A1
8
MAX9042
MAX9052
MAX9043
MAX9053
SO
SO/µMAX
µMAX
1
6
—
—
OUT
Comparator Output
2
2
4
4
5
VEE
Negative Supply Voltage
B1
3
3
3
—
—
IN+
Comparator Noninverting Input
B3
4
5
1
2
2
REF
Reference Voltage Output
A3
5
6
7
8
10
VCC
Positive Supply Voltage
B2
—
4
2
—
—
IN-
Comparator Inverting Input
—
—
—
5, 8
—
9
N.C.
—
—
—
—
1
1
OUTA
Comparator A Output
—
—
—
—
3
4
INA+
Comparator A Noninverting Input
—
—
—
—
5
6
INB+
Comparator B Noninverting Input
—
—
—
—
6
7
INB-
Comparator B Inverting Input
—
—
—
—
7
8
OUTB
—
—
—
—
—
3
INA-
MAX9041
MAX9051
NAME
FUNCTION
No Connection. Not internally connected.
Comparator B Output
Comparator A Inverting Input
_______________________________________________________________________________________
Micropower, Single-Supply, UCSP/SOT23
Comparator + Precision Reference ICs
The MAX9039–MAX9043 and MAX9050–MAX9053 feature single/dual, low-power, low-voltage comparators
and a precision voltage reference. They operate from a
single 2.5V to 5.5V (MAX9039/MAX904_) or 2.7V to
5.5V (MAX905_) supply. The single comparators with
reference, (MAX9039/MAX9040/MAX9041/MAX9050/
MAX9051 consume only 40µA of supply current, while
the dual comparators with reference (MAX9042/
MAX9043/MAX9052/MAX9053) consume only 55µA of
supply current. Their common-mode input range
extends 0.25V beyond each rail. Internal hysteresis
ensures clean output switching, even with slow-moving
input signals.
The output stage employs a unique design that minimizes supply current surges while switching, virtually
eliminating the supply glitches typical of many other
comparators. Large internal output drivers allow rail-torail output swing that can sink and source up to 8mA of
current.
The precision reference uses a proprietary curvaturecorrection circuit and laser-trimmed thin-film resistors,
resulting in a temperature coefficient of less than 30ppm/°C
over the extended temperature range and initial accuracy
of 0.4% (A grade). The reference output voltage is set to
1.23V in the MAX9039, 2.048V in the MAX9040–MAX9043,
and to 2.500V in the MAX9050–MAX9053.
Comparator Input Stage Circuitry
The devices’ input common-mode range extends from
(VEE - 0.25V) to (VCC + 0.25V). These comparators may
operate at any differential input voltage within these limits. Input bias current is typically 1.0pA if the input volt-
age is between the supply rails. Comparator inputs are
protected from overvoltage by internal body diodes
connected to the supply rails. As the input voltage
exceeds the supply rails, these body diodes become
forward biased and begin to conduct. Consequently,
bias currents increase exponentially as the input voltage exceeds the supply rails.
Comparator Output Stage Circuitry
The comparators in these devices contain a unique
output stage capable of rail-to-rail operation with loads
up to 8mA. Many comparators consume orders-of-magnitude more current during switching than during
steady-state operation. However, with this family of comparators, the supply current change during an output
transition is extremely small. The Typical Operating
Characteristics graph Supply Current vs. Switching
Frequency shows the minimal supply current increase
as the output switching frequency approaches 1MHz.
This characteristic reduces the need for power-supply
filter capacitors to reduce glitches created by comparator switching currents. Another advantage realized in
high-speed, battery-powered applications is a substantial increase in battery life.
Applications Information
Additional Hysteresis
These comparators have ±3mV internal hysteresis.
Additional hysteresis can be generated with two resistors using positive feedback (Figure 1). Use the following procedure to calculate resistor values:
1) Calculate the trip points of the comparator using
these formulas:
(
R1
VCC
and
R2
VREF
VCC
IN+
OUT
VIN
IN-
MAX9039–MAX9043
MAX9050–MAX9053
VEE
Figure 1. Additional Hysteresis
)
⎞
⎛ V
CC − VREF R2
⎟
VTH = VREF + ⎜
⎟⎟
R1 + R2
⎜⎜
⎠
⎝
⎛
R2 ⎞
VTL = VREF ⎜1 −
⎟
⎝ R1 + R2 ⎠
VTH is the threshold voltage at which the comparator
switches its output from high to low as V IN 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:
⎛ R2 ⎞
VHYS = VTH − VTL = VCC ⎜
⎟
⎝ R1 + R2 ⎠
_______________________________________________________________________________________
9
MAX9039–MAX9043/MAX9050–MAX9053
Detailed Description
MAX9039–MAX9043/MAX9050–MAX9053
Micropower, Single-Supply, UCSP/SOT23
Comparator + Precision Reference ICs
amount of overshoot (or undershoot) and assist the circuit’s transient response. When an application is not
subject to transient conditions, the REF capacitor can
be omitted.
VCC
VCC
IN+
VIN
OUT
10kΩ
IN-
0.1µF
VEE
MAX9039–MAX9043
MAX9050–MAX9053
Figure 2. Time Averaging of the Input Signal for Data Recovery
3) In this example, let VCC = 5V and VREF = 2.5V:
⎛ R2 ⎞
VTH = 2.5 + 2.5 ⎜
⎟
⎝ R1 + R2 ⎠
fCAR >>
1
2πR1C1
where fCAR is the fundamental carrier frequency of the
digital data stream.
UCSP Package Consideration
and
⎛
R2 ⎞
VTL = 2.5 ⎜1 −
⎟
R1 + R2 ⎠
⎝
4) Select R2. In this example, we will choose 1kΩ.
5) Select VHYS. In this example, we will choose 50mV.
6) Solve for R1:
⎛ R2 ⎞
VHYS = VCC ⎜
⎟
⎝ R1 + R2 ⎠
⎛ 1000 ⎞
0.050 = 5 ⎜
⎟
⎝ R1 +1000 ⎠
where R1 ≈ 100kΩ, VTH = 2.525V, and VTL = 2.475V.
Board Layout and Bypassing
Power-supply bypass capacitors are not typically needed, but would be called for in cases where supply
impedance is high, supply leads are long, or excessive
noise is expected on the supply lines. Use 100nF
bypass capacitors under these conditions. Minimize
signal trace lengths to reduce stray capacitance.
Reference Output/Load Capacitance
The MAX9039/MAX904_/MAX905_ do not require an
output capacitor on REF for frequency stability. They
are stable for capacitive loads up to 4.7nF. However, in
applications where the load or the supply can experience step changes, an output capacitor will reduce the
10
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:
For general UCSP package information and PC layout
considerations, please refer to Maxim Application
Note,"Wafer-Level Chip-Scale Package."
UCSP Reliability
The chip-scale package (UCSP) represents a unique
packaging form factor that may not perform equally to a
packaged product through traditional mechanical reliability tests. UCSP reliability is integrally linked to the
user’s assembly methods, circuit board material, and
usage environment. The user should closely review
these areas when considering use of a UCSP.
Performance through Operating Life Test and Moisture
Resistance remains uncompromised as it is primarily
determined by the wafer-fabrication process.
Mechanical stress performance is a greater consideration for a UCSP. UCSPs are attached through direct
solder contact to the user’s PC board, foregoing the
inherent stress relief of a packaged product lead frame.
Solder joint contact integrity must be considered.
Information on Maxim’s qualification plan, test data,
and recommendations are detailed in the UCSP application note, which can be found on Maxim’s website at
www.maxim-ic.com.
Chip Information
MAX9039 TRANSISTOR COUNT: 193
MAX9040/MAX9041/MAX9050/MAX9051 TRANSISTOR
COUNT: 204
MAX9042/MAX9043/MAX9052/MAX9053 TRANSISTOR
COUNT: 280
______________________________________________________________________________________
Micropower, Single-Supply, UCSP/SOT23
Comparator + Precision Reference ICs
1 OUTA
VEE 2
1 OUT
VCC
MAX9042
MAX9052
2 REF
5
VCC
3
IN+
REF
OUTB
8
7
INB- 6
3 INA+
REF
REF 4
4 VEE
MAX9040
MAX9050
6 (A2)
1 OUTA
VEE 4 (A1)
OUT
INB+ 5
VCC
MAX9043
MAX9053
REF
2 REF
OUTB
10
8
REF 1 (B3)
7 (A3) VCC
3 INA-
INB- 7
4 INA+
REF
IN- 2 (B2)
3 (B1) IN+
5 VEE
INB+ 6
MAX9039
MAX9041
MAX9051
( ) MAX9039 UCSP BUMPS.
Selector Guide
PART
COMPARATORS
PER PACKAGE
VREF
(V)
MAX9039
1
1.230
Uncommitted
MAX9040
1
2.048
REF
MAX9041
1
2.048
Uncommitted
MAX9050
1
2.500
REF
MAX9051
1
2.500
Uncommitted
MAX9042
2
2.048
REF/Uncommitted
MAX9043
2
2.048
Uncommitted/Uncommitted
MAX9052
2
2.500
REF/Uncommitted
MAX9053
2
2.500
Uncommitted/Uncommitted
IN- CONNECTIONS
______________________________________________________________________________________
11
MAX9039–MAX9043/MAX9050–MAX9053
Functional Diagrams
MAX9039–MAX9043/MAX9050–MAX9053
Micropower, Single-Supply, UCSP/SOT23
Comparator + Precision Reference ICs
Pin Configurations (continued)
TOP VIEW
OUT 1
VEE 2
6
MAX9041
MAX9051
IN+ 3
VCC
REF 1
8
IN- 2
5
REF
IN+
4
IN-
3
7
MAX9041
MAX9051
VEE 4
N.C.
VCC
6
OUT
5
N.C.
8
REF 2
INA+
3
MAX9042
MAX9052
VEE 4
Ordering Information (continued)
TEMP RANGE
PINPACKAGE
MAX9042AEUA
-40°C to +85°C
8 µMAX
—
MAX9042BEUA
-40°C to +85°C
8 µMAX
—
MAX9042AESA
-40°C to +85°C
8 SO
—
PART
-40°C to +85°C
8 SO
—
MAX9043AEUB
-40°C to +85°C
10 µMAX
—
MAX9043BEUB
-40°C to +85°C
10 µMAX
—
12
5 SOT23-5
5 SOT23-5
6 SOT23-6
6 SOT23-6
8 SO
8 SO
8 µMAX
8 µMAX
8 SO
8 SO
10 µMAX
10 µMAX
7
OUTB
6
INB-
5
INB+
OUTA 1
10
VCC
REF
2
9
N.C.
INA-
3
8
OUTB
INA+
4
7
INB-
VEE
5
6
INB+
MAX9043
MAX9053
µMAX
Typical Operating Circuit
TOP
MARK
MAX9042BESA
MAX9050AEUK-T -40°C to +85°C
MAX9050BEUK-T -40°C to +85°C
MAX9051AEUT-T -40°C to +85°C
MAX9051BEUT-T -40°C to +85°C
MAX9051AESA
-40°C to +85°C
MAX9051BESA
-40°C to +85°C
MAX9052AEUA
-40°C to +85°C
MAX9052BEUA
-40°C to +85°C
MAX9052AESA
-40°C to +85°C
MAX9052BESA
-40°C to +85°C
MAX9053AEUA
-40°C to +85°C
MAX9053BEUB
-40°C to +85°C
VCC
µMAX/SO
SO
SOT23
OUTA 1
ADNW
ADNY
AAHG
AAHI
—
—
AAHG
AAHI
—
—
—
—
VCC
VIN
VCC
0.1µF
IN+
OUT
IN-
MAX9039
MAX9041/MAX9043
MAX9051/MAX9053
REF
1.23V/2.048V/2.500V
VEE
______________________________________________________________________________________
Micropower, Single-Supply, UCSP/SOT23
Comparator + Precision Reference ICs
6L, UCSP.EPS
PACKAGE OUTLINE, 3x2 UCSP
21-0097
G
1
1
______________________________________________________________________________________
13
MAX9039–MAX9043/MAX9050–MAX9053
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
SOT-23 5L .EPS
MAX9039–MAX9043/MAX9050–MAX9053
Micropower, Single-Supply, UCSP/SOT23
Comparator + Precision Reference ICs
14
______________________________________________________________________________________
Micropower, Single-Supply, UCSP/SOT23
Comparator + Precision Reference ICs
N
E
H
INCHES
MILLIMETERS
MAX
MIN
0.069
0.053
0.010
0.004
0.014
0.019
0.007
0.010
0.050 BSC
0.150
0.157
0.228
0.244
0.016
0.050
MAX
MIN
1.35
1.75
0.10
0.25
0.35
0.49
0.25
0.19
1.27 BSC
3.80
4.00
5.80
6.20
0.40
SOICN .EPS
DIM
A
A1
B
C
e
E
H
L
1.27
VARIATIONS:
1
INCHES
TOP VIEW
DIM
D
D
D
MIN
0.189
0.337
0.386
MAX
0.197
0.344
0.394
MILLIMETERS
MIN
4.80
8.55
9.80
MAX
5.00
8.75
10.00
N MS012
8
AA
14
AB
16
AC
D
A
B
e
C
0∞-8∞
A1
L
FRONT VIEW
SIDE VIEW
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE, .150" SOIC
APPROVAL
DOCUMENT CONTROL NO.
21-0041
REV.
B
1
1
______________________________________________________________________________________
15
MAX9039–MAX9043/MAX9050–MAX9053
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
6LSOT.EPS
MAX9039–MAX9043/MAX9050–MAX9053
Micropower, Single-Supply, UCSP/SOT23
Comparator + Precision Reference ICs
16
______________________________________________________________________________________
Micropower, Single-Supply, UCSP/SOT23
Comparator + Precision Reference ICs
______________________________________________________________________________________
17
MAX9039–MAX9043/MAX9050–MAX9053
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
e
10LUMAX.EPS
MAX9039–MAX9043/MAX9050–MAX9053
Micropower, Single-Supply, UCSP/SOT23
Comparator + Precision Reference ICs
4X S
10
10
INCHES
H
Ø0.50±0.1
0.6±0.1
1
1
0.6±0.1
BOTTOM VIEW
TOP VIEW
D2
MILLIMETERS
MAX
DIM MIN
0.043
A
0.006
A1
0.002
A2
0.030
0.037
0.120
D1
0.116
0.118
D2
0.114
0.120
E1
0.116
0.118
E2
0.114
0.199
H
0.187
L
0.0157 0.0275
L1
0.037 REF
0.0106
b
0.007
e
0.0197 BSC
c
0.0035 0.0078
0.0196 REF
S
α
0°
6°
MAX
MIN
1.10
0.15
0.05
0.75
0.95
3.05
2.95
2.89
3.00
3.05
2.95
2.89
3.00
4.75
5.05
0.40
0.70
0.940 REF
0.177
0.270
0.500 BSC
0.090
0.200
0.498 REF
0°
6°
E2
GAGE PLANE
A2
c
A
b
A1
α
E1
D1
FRONT VIEW
L
L1
SIDE VIEW
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE, 10L uMAX/uSOP
APPROVAL
DOCUMENT CONTROL NO.
21-0061
18
______________________________________________________________________________________
REV.
1
1
Micropower, Single-Supply, UCSP/SOT23
Comparator + Precision Reference ICs
8
INCHES
DIM
A
A1
A2
b
E
Ø0.50±0.1
H
c
D
e
E
H
0.6±0.1
L
1
1
α
0.6±0.1
S
BOTTOM VIEW
D
MIN
0.002
0.030
MAX
0.043
0.006
0.037
0.014
0.010
0.007
0.005
0.120
0.116
0.0256 BSC
0.120
0.116
0.198
0.188
0.026
0.016
6°
0°
0.0207 BSC
8LUMAXD.EPS
4X S
8
MILLIMETERS
MAX
MIN
0.05
0.75
1.10
0.15
0.95
0.25
0.36
0.13
0.18
2.95
3.05
0.65 BSC
2.95
3.05
4.78
5.03
0.41
0.66
0°
6°
0.5250 BSC
TOP VIEW
A1
A2
A
α
c
e
b
L
SIDE VIEW
FRONT VIEW
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE, 8L uMAX/uSOP
APPROVAL
DOCUMENT CONTROL NO.
21-0036
REV.
J
1
1
Revision History
Pages changed at Rev 5: 1, 2, 13–19
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 19
© 2007 Maxim Integrated Products
is a registered trademark of Maxim Integrated Products, Inc.
MAX9039–MAX9043/MAX9050–MAX9053
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
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