MAX9077EKA ,Low-Cost, Ultra-Small, 3µA Single-Supply Comparatorsapplications.♦ No Output Phase Inversion for Overdriven InputsThe MAX9075/MAX9077 have a common-mod ..
MAX9077EKA-T ,Low-Cost / Ultra-Small / 3A Single-Supply ComparatorsApplications MAX9077ESA -40°C to +85°C 8 SO —Battery-Powered SystemsThreshold Detectors/Discriminat ..
MAX9077ESA ,Low-Cost / Ultra-Small / 3A Single-Supply Comparatorsapplications.' +2.1V to +5.5V Single-Supply OperationThese comparators have a 580ns propagation del ..
MAX9077ESA+ ,Low-Cost, Ultra-Small, 3µA Single-Supply Comparators MAX9075/MAX9077Low-Cost, Ultra-Small, 3µASingle-Supply Comparators
MAX9077EUA+ ,Low-Cost, Ultra-Small, 3µA Single-Supply Comparatorsapplications.♦ 2.1V to 5.5V Single-Supply OperationThese comparators have a 580ns propagation delay ..
MAX907CPA ,Single/Dual/Quad High-Speed, Ultra Low-Power, Single-Supply TTL ComparatorsApplicationsDIP/SOBattery-Powered SystemsHigh-Speed A/D ConvertersOUTA1 14OUTDHigh-Speed V/F Conver ..
MB88146A ,D/A Converter for Digital Tuning (12-channel, 8-bit, on-chip OP amp., low-voltage)FUJITSU SEMICONDUCTORDS04-13513-1EDATA SHEETLinear IC ConverterCMOSD/A Converter for Digital Tuni ..
MB88146A ,D/A Converter for Digital Tuning (12-channel, 8-bit, on-chip OP amp., low-voltage)FUJITSU SEMICONDUCTORDS04-13513-1EDATA SHEETLinear IC ConverterCMOSD/A Converter for Digital Tuni ..
MB88146APFV ,D/A Converter for Digital Tuning (12-channel, 8-bit, on-chip OP amp., low-voltage)FUJITSU SEMICONDUCTORDS04-13513-1EDATA SHEETLinear IC ConverterCMOSD/A Converter for Digital Tuni ..
MB88153PNF-G-100-JN-ERE1 , Spread Spectrum Clock Generator
MB88154PNF-G-103-JN-ERE1 , Spread Spectrum Clock Generator
MB88154PNF-G-113-JN-ERE1 , Spread Spectrum Clock Generator
MAX9075EXK+T-MAX9077EKA-MAX9077ESA+-MAX9077EUA+
Low-Cost, Ultra-Small, 3µA Single-Supply Comparators
MAX9075/MAX9077
Low-Cost, Ultra-Small, 3µA
Single-Supply Comparators
General DescriptionThe MAX9075/MAX9077 single/dual comparators are
optimized for 3V and 5V single-supply applications.
These comparators have a 580ns propagation delay and
consume just 3µA per comparator. The combination of
low-power, single-supply operation down to 2.1V, and
ultra-small footprint makes these devices ideal for all
portable applications.
The MAX9075/MAX9077 have a common-mode input
voltage range of -0.2V to VCC- 1.2V. Unlike many com-
parators, there is no differential clamp between the
inputs, allowing the differential input voltage range to
extend rail-to-rail. All inputs and outputs tolerate a con-
tinuous short-circuit fault condition to either rail.
The design of the output stage limits supply-current
surges while switching (typical of many other compara-
tors), minimizing power consumption under dynamic
conditions. Large internal push-pull output drivers allow
rail-to-rail output swing with loads up to 2mA, making
these devices ideal for interface with TTL/CMOS logic.
The MAX9075 single comparator is available in 5-pin
SC70 and SOT23 packages, while the MAX9077
dual comparator is available in 8-pin SOT23, µMAX®,
and SO packages.
ApplicationsBattery-Powered Systems
Threshold Detectors/Discriminators
Keyless Entry Systems
IR Receivers
Digital Line Receivers
Features580ns Propagation Delay from Only 3µA2.1V to 5.5V Single-Supply OperationGround-Sensing InputsRail-to-Rail OutputsNo Output Phase Inversion for Overdriven InputsNo Differential Clamp Across InputsAvailable in Ultra-Small Packages
5-Pin SC70 (MAX9075)
8-Pin SOT23 (MAX9077)
Ordering Information
Typical Operating CircuitVCC
VCC
OUT
GNDVREF
IN-
IN+
VIN
MAX9075
MAX9077
Pin ConfigurationsTOP VIEW
GND
IN-IN+VCCOUT
MAX9075
SC70-5/SOT23-5Pin Configurations continued at end of data sheet.
PART*TEMP RANGEPIN-
PACKAGE
TOP
MARK
MAX9075EXK+T-40°C to +85°C5 SC70AAC+
MAX9075EUK+T-40°C to +85°C5 SOT23ADLX+
MAX9077EKA+T-40°C to +85°C8 SOT23AAAD+
MAX9077EUA+-40°C to +85°C8 µMAX—
MAX9077ESA+-40°C to +85°C8 SO—
MAX9077MSA/PR2-55°C to +125°C8 SO—
+Denotes a lead(Pb)-free/RoHS-compliant package.
*Denotes a package containing lead(Pb).
T = Tape and reel.
MAX9075/MAX9077
Low-Cost, Ultra-Small, 3µA
Single-Supply Comparators
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS(VCC= 5V, VCM= 0V, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
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.
Note 1:All devices are 100% production tested at TA= +25°C. All temperature limits are guaranteed by design.
Note 2:Inferred from CMRR. Either input can be driven to the absolute maximum limit without output inversion, as long as the other
input is within the input voltage range.
Note 3:Guaranteed by design.
Supply Voltage
VCCto GND........................................................................6V
All Other Pins to GND...........................-0.3V to (VCC+ 0.3V)
Current into Input Pins......................................................±20mA
Duration of Output Short-Circuit to GND or VCC........Continuous
Continuous Power Dissipation (TA= +70°C)
5-Pin SC70 (derate 3.1mW/°C above +70°C)............247mW
5-Pin SOT23 (derate 3.1mW/°C above +70°C)..........247mW
8-Pin SOT23 (derate 5.2mW/°C above +70°C)..........412mW
8-Pin µMAX (derate 4.5mW/°C above +70°C)...........362mW
8-Pin SO (derate 5.88mW/°C above +70°C)..............471mW
Operating Temperature Range...........................-40°C to +85°C
Military Operating Temperature Range.............-55°C to +125°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
Soldering Temperature (reflow)
Lead (Pb)-free............................................................+260°C
Containing lead (Pb)..................................................+240°C
Inferred from PSRR
CLOAD= 10pF
0V ≤VCM≤(VCC- 1.2V)
CLOAD= 10pF, overdrive = 100mV
CLOAD= 10pF, overdrive = 100mV
VCM= 0.2V (Note 3)
VCC= 3V
2.1V ≤VCC≤5.5V
(Note 2)
ISINK= 2mA
ISOURCE= 2mA
CONDITIONS1.6Rise/Fall Time250tPD-Propagation Delay High to Low580tPD+Propagation Delay Low to High0.4VOLOUT_ Output-Voltage LowVCC-
0.4VOHOUT_ Output-Voltage High
ICC2.15.5VCCOperating Supply Voltage Range
Supply Current per Comparator6082CMRRCommon-Mode Rejection Ratio3CINInput Capacitance-5-20IBInput Bias Current 1IOSInput Offset Current
2.45477PSRRPower-Supply Rejection Ratio0VCC -
1.2VCMRCommon-Mode Voltage Range±1±8VOSInput Offset Voltage
UNITSMINTYPMAXSYMBOLPARAMETER= +25°C= TMINto TMAXVCC= 5VµA
OUTPUT-VOLTAGE LOW
vs. SINK CURRENT (VCC = 2.1V)
MAX9075/7 toc01
SINK CURRENT (mA)
OUTPUT VOLTAGE (V)TA = +85°C
TA = +25°C
TA = -40°C
OUTPUT-VOLTAGE LOW
vs. SINK CURRENT (VCC = 3V)
MAX9075/7 toc02
SINK CURRENT (mA)
OUTPUT VOLTAGE (V)TA = +85°C
TA = +25°C
TA = -40°C
OUTPUT-VOLTAGE LOW
vs. SINK CURRENT (VCC = 5V)
MAX9075/7 toc03
SINK CURRENT (mA)
OUTPUT VOLTAGE (V)TA = +85°C
TA = +25°C
TA = -40°C
OUTPUT-VOLTAGE HIGH
vs. SOURCE CURRENT (VCC = 2.1V)
MAX9075/7 toc04
SOURCE CURRENT (mA)
OUTPUT VOLTAGE (V)
TA = +85°C
TA = +25°C
TA = -40°C
OUTPUT-VOLTAGE HIGH
vs. SOURCE CURRENT (VCC = 3V)
MAX9075/7 toc05
SOURCE CURRENT (mA)
OUTPUT VOLTAGE (V)
TA = +85°C
TA = +25°C
TA = -40°C
OUTPUT-VOLTAGE HIGH
vs. SOURCE CURRENT (VCC = 5V)
MAX9075/7 toc06
SOURCE CURRENT (mA)
OUTPUT VOLTAGE (V)
TA = +85°C
TA = +25°C
TA = -40°C
SHORT-CIRCUIT SINK CURRENT
vs. TEMPERATURE
MAX9075 toc07
SINK CURRENT (mA)
VCC = 5V
VCC = 3V
VCC = 2.1V20
SHORT-CIRCUIT SOURCE CURRENT
vs. TEMPERATURE
MAX9075 toc08
SOURCE CURRENT (mA)
VCC = 5V
VCC = 3V
VCC = 2.1V1.0
SUPPLY CURRENT
vs. TEMPERATURE (OUT = HIGH)
MAX9075 toc09
SUPPLY CURRENT (VCC = 5V
VCC = 3V
VCC = 2.1V
Typical Operating Characteristics(VCC= 5V, VCM= 0V, 100mV overdrive, TA= +25°C, unless otherwise noted.)
MAX9075/MAX9077
Low-Cost, Ultra-Small, 3µA
Single-Supply Comparators
MAX9075/MAX9077
Low-Cost, Ultra-Small, 3µA
Single-Supply ComparatorsSUPPLY CURRENT
vs. TEMPERATURE (OUT = LOW)
MAX9075 toc10
TEMPERATURE (°C)
SUPPLY CURRENT (VCC = 5V
VCC = 3V
VCC = 2.1V
SUPPLY CURRENT
vs. OUTPUT TRANSITION FREQUENCYMAX9075 toc11
TRANSITION FREQUENCY (Hz)
SUPPLY CURRENT (
1001k10k100k101001M
VCC = 2.1V
VCC = 5V
VCC = 3V
INPUT OFFSET VOLTAGE
vs. TEMPERATURE
MAX9075 toc12
TEMPERATURE (°C)
OFFSET VOLTAGE (mV)
VCC = 5V
VCC = 3V
VCC = 2.1V
PROPAGATION DELAY
vs. LOAD CAPACITANCE
MAX9075 toc13
LOAD CAPACITANCE (pF)
PROPAGATION DELAY (500100015002000
tPD+
tPD-
PROPAGATION DELAY
vs. INPUT OVERDRIVE (tPD+)
MAX9075 toc14
INPUT OVERDRIVE (mV)
PROPAGATION DELAY (50100150200250
VCC = 5V
VCC = 3V
VCC = 2.1V
PROPAGATION DELAY
vs. INPUT OVERDRIVE (tPD-)
MAX9075 toc15
INPUT OVERDRIVE (mV)
PROPAGATION DELAY (50100150200250
VCC = 5V
VCC = 3V
VCC = 2.1V
PROPAGATION DELAY
vs. TEMPERATURE (VCC = 2.1V)
MAX9075 toc16
PROPAGATION DELAY (ns)
tPD-
tPD+
PROPAGATION DELAY
vs. TEMPERATURE (VCC = 3V)
MAX9075 toc17
PROPAGATION DELAY (ns)
tPD-
tPD+
PROPAGATION DELAY
vs. TEMPERATURE (VCC = 5V)
MAX9075 toc18
PROPAGATION DELAY (ns)
tPD-
tPD+
Typical Operating Characteristics (continued)(VCC= 5V, VCM= 0V, 100mV overdrive, TA= +25°C, unless otherwise noted.)
MAX9075/MAX9077
Low-Cost, Ultra-Small, 3µA
Single-Supply Comparators100ns/div
PROPAGATION DELAY (tPD+)MAX9075/7 toc19
50mV/div
2V/div
VIN
VCC = 5V
VOUT
100ns//div
PROPAGATION DELAY (tPD-)MAX9075/7 toc20
50mV/div
2V/divVOUT
VIN
VCC = 5V
200μs/div
TRIANGLE WAVEMAX9075/7 toc23
VIN
VOUT
50mV/div
1V/div
VCC = 3V
100ns/div
PROPAGATION DELAY (tPD+)MAX9075/7 toc21
VIN
VOUT
50mV/div
1V/div
VCC = 3V
100ns/div
PROPAGATION DELAY (tPD-)MAX9075/7 toc22
VIN
VOUT
50mV/div
1V/div
VCC = 3V
INPUT BIAS CURRENT
vs. TEMPERATUREMAX9075 toc24
TEMPERATURE (°C)
INPUT BIAS CURRENT (nA)
VCC = 3V
VCC = 5V
VCC = 2.1V
Typical Operating Characteristics (continued)(VCC= 5V, VCM= 0V, 100mV overdrive, TA= +25°C, unless otherwise noted.)
MAX9075/MAX9077
Low-Cost, Ultra-Small, 3µA
Single-Supply Comparators
Pin Description
FUNCTIONNAME
SOT23
MAX9077
µMAX/SOSC70SOT231—Comparator OutputOUT1—122GroundGND2
Output of Comparator AOUTA—3——4Noninverting Input of Comparator AINA+—4——3Inverting Input of Comparator AINA-—
Inverting Comparator InputIN-4
Noninverting Comparator InputIN+358Positive Supply VoltageVCC5—5—6Inverting Input of Comparator BINB-——7Output of Comparator BOUTB—
Noninverting Input of Comparator BINB+—
MAX9075
PIN
Detailed DescriptionThe MAX9075/MAX9077 feature a 580ns propagation
delay from an ultra-low supply current of only 3µA per
comparator. These devices are capable of single-sup-
ply operation in the 2.1V to 5.5V range. Large internal
output drivers allow rail-to-rail output swing with up to
2mA loads. Both comparators offer a push-pull output
that sinks and sources current.
Comparator OutputThe MAX9075/MAX9077 are designed to maintain a
low-supply current during repeated transitions by limit-
ing the shoot-through current.
Noise Considerations, Comparator InputThe input common-mode voltage range for these
devices extends from 0V to VCC- 1.2V. Unlike many
other comparators, the MAX9075/MAX9077 can oper-
ate at any differential input voltage within these limits.
Input bias current is typically -5nA if the input voltage is
between the supply rails.
Although the comparators have a very high gain, useful
gain is limited by noise. The comparator has a wide-
band peak-to-peak noise of approximately 70µV.
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. Set the hystere-
sis with three resistors using positive feedback, as
shown in Figure 1.
The design procedure is as follows:Choose R3. The leakage current of IN+ may cause a
small error; however, the current through R3 can be
approximately 500nA and still maintain accuracy.
The added supply current due to the circuit at the
trip point is VCC/R3; 10MΩis a good practical value
for R3, as this keeps the current well below the sup-
ply current of the chip.Choose the hysteresis voltage (VHYS), which is the
voltage between the upper and lower thresholds. In
this example, choose VHYS= 50mV and assume
VREF= 1.2V and VCC= 5V.Calculate R1 as follows:
R1 = R3 x VHYS/VCC= 10MΩx 0.05/5 = 100kΩ
