IC Phoenix
 
Home ›  MM85 > MAX942,High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators
MAX942 Fast Delivery,Good Price
Part Number:
If you need More Quantity or Better Price,Welcom Any inquiry.
We available via phone +865332716050 Email
Partno Mfg Dc Qty AvailableDescript
MAX942MAXN/a4avaiHigh-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators


MAX942 ,High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply ComparatorsApplicationsMAX941CSA 0°C to +70°C 8 SO● 3V/5V SystemsMAX941EPA -40°C to +85°C 8 PDIP● Battery-Powe ..
MAX942CPA ,High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply ComparatorsApplicationsered from a 3V or 5V supply. These devices combine(operation down to 2.7V)high speed, l ..
MAX942CPA ,High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply ComparatorsFeaturesThe MAX941/MAX942/MAX944 are single/dual/quad' Available in µMAX Packagehigh-speed comparat ..
MAX942CSA ,High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply ComparatorsGeneral Description ________
MAX942CSA+T ,High-Speed, Low-Power, 3V/5V, Rail-to-Rail, Single-Supply ComparatorsMAX941/MAX942/ High-Speed, Low-Power, 3V/5V, Rail-to-Rail, MAX944 Single-Supply Comparators
MAX942CSA-T ,High-Speed, Low-Power, 3V/5V, Rail-to-Rail, Single-Supply ComparatorsApplicationsMAX941CSA 0°C to +70°C 8 SO● 3V/5V SystemsMAX941EPA -40°C to +85°C 8 PDIP● Battery-Powe ..
MB8868A ,MOS Universal Asynchronous Receiver / Transmitter (UART)Features I Full or Hall Duplex Operation I Completely Programmable I Start Bit Generated ..
MB89121 ,8-bit Proprietary MicrocontrollerFUJITSU SEMICONDUCTORDS07-12509-6EDATA SHEET8-bit Proprietary MicrocontrollerCMOS2F MC-8L MB89120/1 ..
MB89123A ,8-bit Proprietary MicrocontrollerFUJITSU SEMICONDUCTORDS07-12509-6EDATA SHEET8-bit Proprietary MicrocontrollerCMOS2F MC-8L MB89120/1 ..
MB89133A ,8-bit Proprietary MicrocontrollerFUJITSU SEMICONDUCTORDS07-12510-9EDATA SHEET8-bit Proprietary MicrocontrollerCMOS2F MC-8L MB89130/1 ..
MB89153 ,8-bit Proprietary MicrocontrollerFUJITSU SEMICONDUCTORDS07-12506-4EDATA SHEET8-bit Proprietary MicrocontrollerCMOS2F MC-8L MB89150/1 ..
MB89163 ,8-bit Proprietary MicrocontrollerFUJITSU SEMICONDUCTORDS07-12405-2EDATA SHEET8-bit Proprietary MicrocontrollerCMOS2F MC-8L MB89160/1 ..


MAX942
High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators
General Description
The MAX941/MAX942/MAX944 are single/dual/quad high-
speed comparators optimized for systems powered from a
3V or 5V supply. These devices combine high speed, low
power, and rail-to-rail inputs. Propagation delay is 80ns, while supply current is only 350μA per comparator.
The input common-mode range of the MAX941/MAX942/
MAX944 extends beyond both power-supply rails. The
outputs pull to within 0.4V of either supply rail without
external pullup circuitry, making these devices ideal for
interface with both CMOS and TTL logic. All input and
output pins can tolerate a continuous short-circuit fault
condition to either rail. Internal hysteresis ensures clean
output switching, even with slow-moving input signals.
The MAX941 features latch enable and device shutdown.
The single MAX941 and dual MAX942 are offered in a tiny μMAX® package. Both the single and dual MAX942
are available in 8-pin DIP and SO packages. The quad
MAX944 comes in 14-pin DIP and narrow SO packages.
Applications
●3V/5V Systems●Battery-Powered Systems●Threshold Detectors/Discriminators●Line Receivers●Zero-Crossing Detectors●Sampling Circuits
Features
●Available in μMAX Package●Optimized for 3V and 5V Applications
(Operation Down to 2.7V)●Fast, 80ns Propagation Delay (5mV Overdrive)●Rail-to-Rail Input Voltage Range●Low 350μA Supply Current per Comparator●Low, 1mV Offset Voltage●Internal Hysteresis for Clean Switching●Outputs Swing 200mV of Power Rails●CMOS/TTL-Compatible Outputs●Output Latch (MAX941 Only)●Shutdown Function (MAX941 Only)
Ordering Information continued at end of data sheet.

μMAX is a registered trademark of Maxim Integrated Products, Inc.
T = Tape and reel.
PARTTEMP RANGEPIN-
PACKAGE
MAX941CPA
0°C to +70°C8 PDIP
MAX941CSA 0°C to +70°C8 SO
MAX941EPA-40°C to +85°C8 PDIP
MAX941ESA-40°C to +85°C8 SO
MAX941EUA-T-40°C to +85°C8 µMAX
MAX941AUA-T-40°C to +125°C8 µMAX
N.C.
OUT
GND
LATCHSHDN
IN-
IN+
PDIP/SO/µMAX

OUTB
INB-
INB+GND
INA+
INA-
OUTA
MAX942
PDIP/SO/µMAX

OUTD
IND-
IND+
GNDV+
INA+
INA-
OUTA
INC+
INC-
OUTCOUTB
INB-
INB+
PDIP/SO
MAX941
MAX944

TOP VIEWDC
MAX941/MAX942/
MAX944
High-Speed, Low-Power, 3V/5V, Rail-to-Rail,
Single-Supply Comparators
Pin Conigurations
Ordering Information
Power-Supply RangesSupply Voltage V+ to GND .............................................+6.5VDifferential Input Voltage .........................-0.3V to (V+ + 0.3V)Common-Mode Input Voltage ..................-0.3V to (V+ + 0.3V)LATCH Input (MAX941 only) ...................-0.3V to (V+ + 0.3V)SHDN Control Input (MAX941 only) .........-0.3V to (V+ + 0.3V)
Current Into Input Pins .....................................................±20mA
Continuous Power Dissipation (TA = +70°C)8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) ..727mW8-Pin SO (derate 5.88mW/°C above +70°C) ...............471mW8-Pin μMAX (derate 4.1mW/°C above +70°C) ............330mW14-Pin Plastic DIP (derate 10.00mW/°C above +70°C) ..800mW14-Pin SO (derate 8.33mW/°C above +70°C) .............667mW
Operating Temperature RangesMAX94_C_ _ ......................................................0°C to +70°CMAX94_E_ _ ..................................................-40°C to +85°C
MAX94_AUA .................................................-40°C to +125°C
MAX942MSA ................................................-55°C to +125°C
Storage Temperature Range ............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
(V+ = 2.7V to 5.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 14)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS

Positive Supply VoltageV+2.75.5V
Input Voltage RangeVCMR(Note 1)-0.2V+ + 0.2V
Input-Referred Trip
PointsVTRIP
VCM =
0V or
VCM = V+
(Note 2)
TA = +25°C
MAX94_C_ _, MAX94_EP_,
MAX94_ES_, MAX942MSA13mV
MAX941_UA/MAX942_UA14
TA = TMIN
to TMAX
MAX94_C_ _, MAX94_EP_,
MAX94_ES_, MAX942MSA4mV
MAX941_UA/MAX942_UA6
Input Offset VoltageVOS
VCM =
0V or
VCM = V+
(Note 3)
TA = +25°C
MAX94_C_ _, MAX94_EP_,
MAX94_ES_, MAX942MSA12
MAX941_UA/MAX942_UA13
TA = TMIN
to TMAX
MAX94_C_ _, MAX94_EP_,
MAX94_ES_, MAX942MSA3
MAX941_UA/MAX942_UA5.5
Input Bias CurrentIBVIN = VOS, VCM = 0V or
VCM = V+ (Note 4)
MAX94_C150300nAMAX94_E/A, MAX942MSA150400
Input Offset CurrentIOSVIN = VOS, VCM = 0V or V+10150nA
Input Differential Clamp
VoltageVCLAMPForce 100μA into IN+, IN- = GND,
measure VIN+ - VIN-, Figure 32.2V
Common-Mode Rejection
RatioCMRR(Note 5)
MAX94_C_ _, MAX94_EP_,
MAX94_ES_, MAX942MSA80300μV/V
MAX941_UA/MAX942_UA80800
Power-Supply Rejection
Ratio
PSRR2.7V ≤ V+ ≤ 5.5V,
VCM = 0V
MAX94_C_ _, MAX94_EP_,
MAX94_ES_, MAX942MSA80300μV/V
MAX941_UA/MAX942_UA80350
Output High VoltageVOH
ISOURCE = 400μAV+ - 0.4V+ - 0.2ISOURCE = 4mAV+ - 0.4V+ - 0.3
Output Low VoltageVOLISINK = 400μA0.20.4V
MAX941/MAX942/
MAX944
High-Speed, Low-Power, 3V/5V, Rail-to-Rail,
Single-Supply Comparators
Absolute Maximum Ratings

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
(V+ = 2.7V to 5.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 14)
Note 1:
Inferred from the CMRR test. Note also that either or both inputs can be driven to the absolute maximum limit (0.3V
beyond either supply rail) without damage or false output inversion.
Note 2:
The input-referred trip points are the extremities of the differential input voltage required to make the comparator output
change state. The difference between the upper and lower trip points is equal to the width of the input-referred hysteresis
zone (see Figure 1).
Note 3:
VOS is defined as the center of the input-referred hysteresis zone (see Figure 1).
Note 4:
The polarity of IB reverses direction as VCM approaches either supply rail. See Typical Operating Characteristics for more
detail.
Note 5:
Specified over the full common-mode range (VCMR).
Note 6:
Applies to the MAX941 only when in shutdown mode. Specification is for current flowing into or out of the output pin for
VOUT driven to any voltage from V+ to GND.
Note 7:
Typical power dissipation specified with V+ = 3V; maximum with V+ = 5.5V.
Note 8:
Parameter is guaranteed by design and specified with VOD = 5mV and CLOAD = 15pF in parallel with 400μA of sink or
source current. VOS is added to the overdrive voltage for low values of overdrive (see Figure 2).
Note 9:
Specified between any two channels in the MAX942/MAX944.
Note 10:
Specified as the difference between tPD+ and tPD- for any one comparator.
Note 11:
Applies to the MAX941 only for both SHDN and LATCH pins.
Note 12:
Applies to the MAX941 only. Comparator is active with LATCH pin driven high and is latched with LATCH pin driven low
(see Figure 2).
Note 13:
Applicable to the MAX941 only. Comparator is active with SHDN pin driven high and is in shutdown with SHDN pin driven
low. Shutdown disable time is the delay when SHDN is driven high to the time the output is valid.
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS

Supply Current per
ComparatorICC
V+ = 3VMAX941380600
MAX942/MAX944350500
V+ = 5V
MAX941430700
MAX942/MAX944400600
MAX941 only, shutdown mode (V+ = 3V)1260
Power Dissipation per
ComparatorPD(Note 7)
MAX9411.04.2
MAX942/MAX9441.03.6
Propagation DelaytPD+,
tPD-(Note 8)MAX94_C80150ns
MAX94_E/A, MAX942MSA80200
Differential Propagation
DelaydtPD(Note 9)10ns
Propagation Delay Skew(Note 10)10ns
Logic-Input Voltage HighVIH(Note 11)V+/2 + 0.4V
Logic-Input Voltage LowVIL(Note 11)V+/2 - 0.4V
Logic-Input CurrentIIL, IIHVLOGIC = 0V or V+ (Note 11)210µA
Data-to-Latch Setup TimetS(Note 12)20ns
Latch-to-Data Hold TimetH(Note 12)30ns
Latch Pulse WidthtLPWMAX941 only50ns
Latch Propagation DelaytLPDMAX941 only70ns
Shutdown Time(Note 13)3ns
Shutdown Disable Time(Note 13)10ns
MAX941/MAX942/
MAX944
High-Speed, Low-Power, 3V/5V, Rail-to-Rail,
Single-Supply Comparators
Electrical Characteristics (continued)
(V+ = 3.0V, TA = +25°C, unless otherwise noted.)
PROPAGATION DELAY vs.
INPUT OVERDRIVEMAX941 toc01
INPUT OVERDRIVE (mV)
PROPAGATION DELAY (ns)50
tPD+
tPD-
RS = 10Ω
CLOAD = 15pF
PROPAGATION DELAY vs.
TEMPERATURE
MAX941 toc04
TEMPERATURE (°C)
PROPAGATION DELAY (ns)60
RS = 10Ω
CLOAD = 15pF
VOD = 5mV
OUTPUT LOW VOLTAGE
vs. SINK CURRENT

MAX941 toc07
(V)
0.5100100010,000
TA = -55°C
TA = +25°C
TA = +125°C
100100k
PROPAGATION DELAY vs.
SOURCE IMPEDANCE

350MAX941 toc02
SOURCE IMPEDANCE (Ω)
PROPAGATION DELAY (ns)
10k
1001k
tPD+
tPD-
CLOAD = 15pF
VOD = 5mV
PROPAGATION DELAY vs.
SUPPLY VOLTAGEMAX941 toc05
SUPPLY VOLTAGE (V)
PROPAGATION DELAY (ns)4
tPD+
tPD-
RS = 10Ω
CLOAD = 15pF
VOD = 5mV
MAX941 TOTAL SUPPLY CURRENT
vs. SUPPLY VOLTAGE

SUPPLY CURRENT (µA)
MAX941 toc08TA = +125°C
TA = +25°C
TA = -55°C
PROPAGATION DELAY vs.
CAPACITIVE LOAD
MAX941 toc03
CAPACITIVE LOAD (pF)
PROPAGATION DELAY (ns)
RS = 10Ω
VOD = 5mV
tPD+
tPD-
2.610,000
OUTPUT HIGH VOLTAGE vs.
SOURCE CURRENT

MAX941 toc06
SOURCE CURRENT (µA)
(V)
TA = +125°C
TA = +25°C
TA = -55°C
MAX942 TOTAL SUPPLY CURRENT
vs. SUPPLY VOLTAGE

SUPPLY CURRENT (µA)
MAX941 toc09TA = +125°C
TA = +25°C
TA = -55°C3456
MAX941/MAX942/
MAX944
High-Speed, Low-Power, 3V/5V, Rail-to-Rail,
Single-Supply Comparators
Typical Operating Characteristics
(V+ = 3.0V, TA = +25°C, unless otherwise noted.)
MAX944 TOTAL SUPPLY CURRENT
vs. SUPPLY VOLTAGE

SUPPLY CURRENT (mA)
SUPPLY VOLTAGE (V)
MAX941 toc10
TA = +25°C
TA = -55°C3456
TA = +125°C
VOLTAGE TRIP POINTS/INPUT OFFSET
VOLTAGE vs. TEMPERATURE

TRIP POINTS / V
(µV)
TEMPERATURE (°C)
MAX941 toc13
VTRIP+
VTRIP-
VOS
VCM = 0
MAX941 SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE

SHUTDOWN SUPPLY CURRENT (
MAX941 toc16
V+ = 6.0V
V+ = 2.7V
10MHz RESPONSE

INPUT
50mV/div
OUTPUT
1V/div
VOS
GND
50ns/div
MAX941 toc17
INPUT VOLTAGE RANGE
vs. TEMPERATURE

INPUT VOLTAGE RANGE (V)
TEMPERATURE (°C)
MAX941 toc11VCM+
V+ = 3.0V
VCM-
INPUT BIAS CURRENT/INPUT OFFSET
CURRENT vs. TEMPERATURE

INPUT BIAS / OFFSET CURRENT (nA)
TEMPERATURE (°C)
MAX941-14
IB+
IB-
IOS
SHORT-CIRCUIT OUTPUT CURRENT
vs. TEMPERATURE

SHORT-CIRCUIT OUTPUT CURRENT (mA)
TEMPERATURE (°C)
MAX941 toc12
OUTPUT SHORTED
TO V+ (SINKING)
OUTPUT SHORTED
TO GND (SOURCING)
INPUT BIAS CURRENT (IB+, IB-)
vs. COMMON-MODE VOLTAGE

+, I
- (nA)
COMMON-MODE VOLTAGE (V)
MAX941 toc15
TA = -55°C
TA = +25°C
TA = +125°C
VIN+ = VIN-
NEGATIVE VALUES
REPRESENT CURRENT
FLOWING INTO THE
DEVICE
V+ = 6V
MAX941/MAX942/
MAX944
High-Speed, Low-Power, 3V/5V, Rail-to-Rail,
Single-Supply Comparators
Typical Operating Characteristics (continued)
(V+ = 3.0V, TA = +25°C, unless otherwise noted.)
PIN
NAMEFUNCTIONMAX941MAX942MAX944
11OUTAComparator A Output22INA-Comparator A Inverting Input33INA+Comparator A Noninverting Input84V+Positive Supply (V+ to GND must be ≤ 6.5V)55INB+Comparator B Noninverting Input66INB-Comparator B Inverting Input77OUTBComparator B Output—8OUTCComparator C Output—9INC-Comparator C Inverting Input—10INC+Comparator C Noninverting Input411GNDGround—12IND+Comparator D Noninverting Input—13IND-Comparator D Inverting Input—14OUTDComparator D Output——IN+Noninverting Input——IN-Inverting Input——SHDNShutdown: MAX941 is active when SHDN is driven high; MAX941 is in shutdown
when SHDN is driven low.——LATCHThe output is latched when LATCH is low. The latch is transparent when LATCH
is high.——OUTComparator Output
PROPAGATION DELAY (tPD+)

INPUT STEP = 100mV
VOD = +5mV
INPUT
50mV/div
OUTPUT
1V/div
VOD
VOS
GND
20ns/div
tPD+
MAX941 toc18PROPAGATION DELAY (tPD-)
INPUT STEP = 100mV
VOD = -5mV
INPUT
50mV/div
OUTPUT
1V/div
VOD
VOS
GND
20ns/div
tPD-
MAX941 toc19
MAX941/MAX942/
MAX944
High-Speed, Low-Power, 3V/5V, Rail-to-Rail,
Single-Supply Comparators
Pin Description
Typical Operating Characteristics (continued)
ic,good price


TEL:86-533-2716050      FAX:86-533-2716790
   

©2020 IC PHOENIX CO.,LIMITED