MAX941CPA ,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 ..
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MAX941CSA ,High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply ComparatorsMAX941/MAX942/MAX94419-0229; Rev 3; 6/97High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Co ..
MAX941CSA ,High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply ComparatorsApplicationsMAX941CSA 0°C to +70°C 8 SO3V/5V SystemsMAX941C/D 0°C to +70°C Dice*Battery-Powered Sys ..
MAX941CSA ,High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply ComparatorsELECTRICAL CHARACTERISTICS(V+ = 2.7V to 6.0V, T = T to T , unless otherwise noted. Typical values a ..
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I Full or Hall Duplex
Operation
I Completely Programmable
I Start Bit Generated
..
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MAX941CPA-MAX941CSA-MAX941ESA-MAX941EUA-MAX942CPA-MAX942CSA-MAX942EPA-MAX942ESA-MAX942EUA-MAX944EPD
High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators
_______________General DescriptionThe MAX941/MAX942/MAX944 are single/dual/quad
high-speed comparators optimized for systems pow-
ered 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 pull-up 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 fea-
tures latch enable and device shutdown.
The single MAX941 and dual MAX942 are offered in a
tiny µMAXpackage. 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 pack-
ages.
________________________Applications3V/5V Systems
Battery-Powered Systems
Threshold Detectors/Discriminators
Line Receivers
Zero-Crossing Detectors
Sampling Circuits
____________________________FeaturesAvailable in µMAXPackageOptimized for 3V and 5V Applications
(operation down to 2.7V)Fast, 80ns Propagation Delay (5mV overdrive)Rail-to-Rail Input Voltage RangeLow Power:
1mW Power Dissipation per Comparator (3V)
350µA Supply CurrentLow, 1mV Offset VoltageInternal Hysteresis for Clean SwitchingOutputs Swing 200mV of Power RailsCMOS/TTL-Compatible OutputsOutput Latch (MAX941 only)Shutdown Function (MAX941 only)
______________Ordering Information
MAX941/MAX942/MAX944
High-Speed, Low-Power, 3V/5V,
Rail-to-Rail Single-Supply Comparators
__________________________________________________________Pin Configurations19-0229; Rev 3; 6/97
Ordering Information continued at end of data sheet.* Dice are specified at TA= +25°C, DC parameters only.
MAX941/MAX942/MAX944
High-Speed, Low-Power, 3V/5V,
Rail-to-Rail Single-Supply Comparators
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS(V+ = 2.7V to 6.0V, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C. See Note 14.)
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.
Power-Supply Ranges
Supply Voltage V+ to GND................................................+7V
Differential Input Voltage..........................-0.3V to (V+ + 0.3V)
Common-Mode Input Voltage..................-0.3V to (V+ + 0.3V)–L—A—T—C—H–Input (MAX941 only)....................-0.3V to (V+ + 0.3V)—H—D—N–Control Input (MAX941 only).........-0.3V to (V+ + 0.3V)
Continuous Power Dissipation (TA= +70°C)
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C)...727mW
8-Pin SO (derate 5.88mW/°C above +70°C)................471mW
8-Pin µMAX(derate 4.1mW/°C above +70°C).............330mW
8-Pin CERDIP (derate 8.00mW/°C above +70°C)........640mW
14-Pin Plastic DIP (derate 10.00mW/°C above +70°C)..800mW
14-Pin SO (derate 8.33mW/°C above +70°C)..............667mW
14-Pin CERDIP (derate 9.09mW/°C above +70°C)......727mW
Operating Temperature Ranges
MAX94_C_ _.......................................................0°C to +70°C
MAX94_E_ _.....................................................-40°C to +85°C
MAX94_MJ _..................................................-55°C to +125°C
Storage Temperature Range.............................-65°C to +160°C
Lead Temperature (soldering, 10sec).............................+300°C
MAX941/MAX942/MAX944
High-Speed, Low-Power, 3V/5V,
Rail-to-Rail Single-Supply Comparators
ELECTRICAL CHARACTERISTICS (continued)(V+ = 2.7V to 6.0V, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C. See 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:VOSis defined as the center of the input-referred hysteresis zone. See Figure 1.
Note 4:The polarity of IBreverses direction as VCMapproaches either supply rail. See Typical Operating Characteristicsfor 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
VOUTdriven to any voltage from V+ to GND.
Note 7:Typical power dissipation specified with V+ = 3V; maximum with V+ = 6V.
Note 8:Parameter is guaranteed by design and specified with VOD= 5mV and CLOAD= 15pF in parallel with 400µA of sink or
source current. VOSis 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 –S—H—D—N–and–L—A—T—C—H–pins.
Note 12:Applies to the MAX941 only. Comparator is active with –L—A—T—C—H–pin driven high and is latched with –L—A—T—C—H–pin driven low.
See Figure 2.
Note 13:Applicable to the MAX941 only. Comparator is active with –S—H—D—N–pin driven high and is in shutdown with –S—H—D—N–pin driven
low. Shutdown disable time is the delay when –S—H—D—N–is driven high to the time the output is valid.
Note 14:The MAX941EUA and MAX942EUA are 100% production tested at TA= +25°C. Specifications over temperature are
guaranteed by design.
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.)
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.)
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 Description
