MAX908 Fast Delivery |IC PHOENIX CO.,LIMITED

MAX908 ,Dual/Quad/Single, High-Speed, Ultra-Low-Power, Single-Supply TTL ComparatorsFeatures♦ 40ns Propagation DelayThe MAX907/MAX908/MAX909 are dual/quad/single,high-speed, ultra-low ..
MAX908CPD ,Single/Dual/Quad High-Speed, Ultra Low-Power, Single-Supply TTL ComparatorsFeatures' 40ns Propagation DelayThe MAX907/MAX908/MAX909 dual, quad, and singlehigh-speed, ultra lo ..
MAX908CPD ,Single/Dual/Quad High-Speed, Ultra Low-Power, Single-Supply TTL ComparatorsFeatures' 40ns Propagation DelayThe MAX907/MAX908/MAX909 dual, quad, and singlehigh-speed, ultra lo ..
MAX908CPD ,Single/Dual/Quad High-Speed, Ultra Low-Power, Single-Supply TTL Comparatorsapplications.______________Ordering InformationMAX907/MAX908/MAX909 outputs are TTL compati-PART TE ..
MAX908CPD+ ,Dual/Quad/Single, High-Speed, Ultra-Low-Power, Single-Supply TTL ComparatorsFeatures♦ 40ns Propagation DelayThe MAX907/MAX908/MAX909 are dual/quad/single,high-speed, ultra-low ..
MAX908CSD ,Single/Dual/Quad High-Speed, Ultra Low-Power, Single-Supply TTL ComparatorsGeneral Description _______
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MAX908
Dual/Quad/Single, High-Speed, Ultra-Low-Power, Single-Supply TTL Comparators
Not Recommended for New Designs
The MAX909 was manufactured for Maxim by an outside wafer
foundry using a process that is no longer available. It is not
recommended for new designs. A Maxim replacement or an industry
second-source may be available. The data sheet remains available for
existing users. The other parts on the following data sheet are not
affected.
For further information, please see the QuickView data sheet for this
part or contact technical support for assistance.
MAX907/MAX908/MAX909
Dual/Quad/Single, High-Speed, Ultra-Low-Power
Single-Supply TTLComparators
OUTB
INB-
INB+GND
INA+
INA-
OUTA
MAX907
DIP/SO
TOP VIEW
OUTD
IND-
IND+
GNDV+
INA+
INA-
OUTA
MAX908
DIP/SO
INC+
INC-
OUTCOUTB
INB-
INB+
Pin Configurations
19-0129; Rev 7; 1/06
General Description
The MAX907/MAX908/MAX909 are dual/quad/single,
high-speed, ultra-low-power voltage comparators
designed for use in systems powered from a single
+5V supply; the MAX909 also accepts dual ±5V sup-
plies. Their 40ns propagation delay (with 5mV input
overdrive) is achieved with a power consumption of
only 3.5mW per comparator. The wide input common-
mode range extends from 200mV below ground (below
the negative supply rail for the MAX909) to within 1.5V
of the positive supply rail.
Because they are micropower, high-speed compara-
tors that operate from a single +5V supply and include
built-in hysteresis, these devices replace a variety of
older comparators in a wide range of applications.
MAX907/MAX908/MAX909 outputs are TTL-compatible,
requiring no external pullup circuitry. All inputs and out-
puts can be continuously shorted to either supply rail
without damage. These easy-to-use comparators incor-
porate internal hysteresis to ensure clean output switch-
ing even when the devices are drivenby a slow-moving
input signal.
The MAX909 features complementary outputs and an
output latch. A separate supply pin for extending the
analog input range down to -5V is also provided.
The dual MAX907 and single MAX909 are available in
8-pin DIP and SO packages, and the quad MAX908 is
available in 14-pin DIP and SO packages. These com-
parators are ideal for single +5V-supply applications
that require the combination of high speed, precision,
and ultra-low power dissipation.
Applications
Battery-Powered Systems
High-Speed A/D Converters
High-Speed V/F Converters
Line Receivers
Threshold Detectors/Discriminators
High-Speed Sampling Circuits
Zero-Crossing Detectors
Features40ns Propagation Delay700µA (3.5mW) Supply Current per Comparator Single 4.5V to 5.5V Supply Operation
(or ±5V, MAX909 only)Wide Input Range Includes Ground
(or -5V, MAX909 only)Low, 500µV Offset VoltageInternal Hysteresis Provides Clean SwitchingTTL-Compatible Outputs
(Complementary on MAX909)Input and Output Short-Circuit ProtectionInternal Latch (MAX909 only)
Ordering Information
Ordering Information continued at end of data sheet.
*Go to /PR-1for details on high-reliability
plastic processing.
Pin Configurations continued at end of data sheet.
PART
8SO
-40°C to +85°C
-40°C to +85°CMAX907ESAPlastic DIPMAX907EPA
8SO0°C to +70°CMAX907CSAPlastic DIP0°C to +70°CMAX907CPA
PIN-PACKAGETEMP RANGE
8SO-55°C to +125°CMAX907MSA/PR*
MAX907/MAX908/MAX909
Dual/Quad/Single, High-Speed, Ultra-Low-Power,
Single-Supply TTLComparators
Positive Supply Voltage (V+ to GND)........................+6V
Negative Supply Voltage (V- to GND, MAX909 only).........-7V
Differential Input Voltage
MAX907/MAX908..........................-0.3V to (V+ + 0.3V)
MAX909..............................(V- - 0.3V) to (V+ + 0.3V)
Common-Mode Input Voltage
MAX907/MAX908..........................-0.3V to (V+ + 0.3V)
MAX909..............................(V- - 0.3V) to (V+ + 0.3V)
Latch Input Voltage (MAX909 only).........-0.3V to (V+ + 0.3V)
Input/Output Short-Circuit Duration to V+ or GND...Continuous
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
14-Pin Plastic DIP (derate 10.00mW/°C above +70°C)...800mW
14-Pin SO (derate 8.33mW/°C above +70°C)..........667mW
Operating Temperature Ranges:
MAX90_C_ _......................................0°C to +70°C
MAX90_E_ _ ...................................-40°C to +85°C
MAX907MSA/PR..............................-55°C to +125°C
Storage Temperature Range ...................-65°C to +150°C
Lead Temperature (soldering, 10s)......................+300°C
ELECTRICAL CHARACTERISTICS
(V+ = 5V, TA= +25°C; MAX909 only: V- = 0V, VLATCH= 0V; unless otherwise noted.)
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.
ABSOLUTE MAXIMUM RATINGS
MAX909 only: V- = -5V
VOUT= 2.4V to 0.4V, CL= 10pF
VOUT= 0.4V to 2.4V, CL= 10pF
MAX907/MAX908
(Notes 3, 4)
MAX909
MAX909
MAX907/MAX908
MAX907/MAX908/MAX909
SYMBOL6tfOutput Fall Time12trOutput Rise Time
610mW3.55.5(Note 8)PDPower Dissipation per
Comparator60100MAX909 only: V- = -5VI-Negative Supply Current
1.21.8mA0.71.0(Note 7)I+Positive Supply Current per
Comparator
0.4ISINK= 8mA
0.360.475ISINK= 3.2mAVOLOutput Low VoltageV
3.03.5ISOURCE= 100µAVOHOutput High Voltage
µV/V50200(Notes 4, 6)PSRRPower-Supply Rejection Ratio
µV/V50150(Notes 4, 5)CMRRCommon-Mode Rejection Ratio
-5.2V+ - 1.5V-0.2V+ - 1.5VCMRInput Voltage Range2550VCM= 0V, VIN= VOSIOSInput Offset Current100300VCM= 0V, VIN= VOSIBInput Bias Current0.52.0(Note 2)VOSInput Offset Voltage-2-4(Note 1)VTRIP-Negative Trip Point24(Note 1)VTRIP+Positive Trip Point
UNITSMINTYPMAXCONDITIONSPARAMETER
MAX907/MAX908/MAX909
Dual/Quad/Single, High-Speed, Ultra-Low-Power
Single-Supply TTLComparators
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 5V, TA= +25°C; MAX909 only: V- = 0V, VLATCH= 0V; unless otherwise noted.)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
Propagation DelaytPD+,tPD-4050ns
Differential Propagation Delay∆tPD1ns
Propagation Delay SkewtPDskew2ns
Latch Input Voltage HighVIH(Note 12)2.0V
Latch Input Voltage LowVIL(Note 12)0.8V
Latch Input CurrentIIH, IIL(Note 12)20µA
Latch Setup Timets(Note 12)2ns
Latch Hold Timeth(Note 12)2ns
VIN= 100mV, VOD= 5mV
(Note 9)
VIN= 100mV, VOD= 5mV
(Note 10)
MAX909 only: VIN= 100mV,
VOD= 5mV (Note 11)
ELECTRICAL CHARACTERISTICS
(V+ = 5V, TA= TMINto TMAX; MAX909 only: V- = 0V, VLATCH= 0V; unless otherwise noted.)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
Positive Trip PointVTRIP+(Note 1)25mV
Negative Trip PointVTRIP-(Note 1)-2-5mV
Input Offset VoltageVOS(Note 2)13.5mV
Input Bias CurrentIBVCM = 0V, VIN = VOS200500nA
Input Offset CurrentIOSVCM = 0V, VIN = VOS50100nA
MAX907/MAX908/MAX909-0.2V+ - 1.5C/E temp.
ranges
(Notes 3, 4)MAX909 only, V- = -5V-5.2V+ - 1.5Input Voltage RangeVCMR
M temp. range
(Notes 3, 4)MAX907MSA/PR-0.1V+ - 1.5
Common-Mode Rejection RatioCMRR(Notes 4, 5)75300µV/V
Power-Supply Rejection RatioPSRR(Notes 4, 6)75400µV/V
Output High VoltageVOHISOURCE = 100µA2.83.5V
TA = TMAX0.45
TMIN = 0°C0.525Output Low VoltageVOLISINK = 3.2mA
TMIN = -40°C0.550
MAX907/MAX9080.81.2Positive Supply Current per
ComparatorI+(Note 7)MAX9091.22.0mA
Negative Supply CurrentI-MAX909 only; V- = -5V100200µV
MAX907/MAX90847Power Dissipation per
ComparatorPD(Note 8)MAX909611mW
MAX907/MAX908/MAX909
Dual/Quad/Single, High-Speed, Ultra-Low-Power,
Single-Supply TTLComparators
Note 1:Trip Point is defined as the input voltage required to make the comparator output change state. The difference
between upper (VTRIP+) and lower (VTRIP-) trip points is equal to the width of the input-referred hysteresis zone (VHYST).
Specified for an input common-mode voltage (VCM) of 0V (see Figure 1).
Note 2:Input Offset Voltage is defined as the center of the input-referred hysteresis zone. Specified for VCM= 0V (see Figure 1).
Note 3:Inferred from the CMRR test. Note that a correct logic result is obtained at the output, provided that at least one input is
within the VCMRlimits. Note also that either or both inputs can be driven to the upper or lower absolute maximum limit with-
out damage to the part.
Note 4:Tested with V+ = 5.5V (and V- = 0V for MAX909). MAX909 also tested over the full analog input range (i.e., with
V- = -5.5V).
Note 5:Tested over the full input voltage range (VCMR).
Note 6:Specified over the full tolerance of operating supply voltage: MAX907/MAX908 tested with 4.5V < V+ < 5.5V. MAX909
tested with 4.5V < V+ < 5.5V and with -5.5V < V- < 0V.
Note 7:Positive Supply Current specified with the worst-case condition of all outputs at logic low(MAX907/MAX908), and
with V+ = 5.5V.
Note 8:Typical power specified with V+ = 5V; maximum with V+ = 5.5V (and with V- = -5.5V for MAX909).
Note 9:Due to difficulties in measuring propagation delay with 5mV of overdrive in automatic test equipment, this parameter is
guaranteed by design for the MAX907 and MAX908. Correlation tests show that the specification can be guaranteed if all
other DC parameters are within the specified limits. VOSmust be added to the overdrive voltage for low values of overdrive.
For the MAX909, propagation delay is typical only and there is no guaranteed maximum limit.
Note 10:Differential Propagation Delay is specified as the difference between any two channels in the MAX907/MAX908 (both out-
puts making either a low-to-high or a high-to-low transition).
Note 11:Propagation Delay Skew is specified as the difference between any single channel’s output low-to-high transition (tPD+)
and high-to-low transition (tPD-), and also between the QOUT and QOUT transition on the MAX909.
Note 12:Latch specifications apply to MAX909 only (see Figure 2).
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 5V, TA= TMINto TMAX; MAX909 only: V- = 0V, VLATCH= 0V; unless otherwise noted.)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
Propagation DelaytPD+,tPD-VIN= 100mV, VOD= 5mV
(Note 9)4570ns
Differential Propagation Delay∆tPDVIN= 100mV, VOD= 5mV
(Note 10)2ns
Propagation Delay SkewtPDskewMAX909 only: VIN= 100mV,
VOD= 5mV (Note 11)4ns
Latch Input Voltage HighVIH(Note 12)2.0V
Latch Hold Timeth(Note 12)4ns
Latch Input Voltage LowVIL(Note 12)0.8V
Latch Input CurrentIIH, IIL(Note 12)20µA
Latch Setup Timets(Note 12)4ns
MAX907/MAX908/MAX909
Dual/Quad/Single, High-Speed, Ultra-Low-Power
Single-Supply TTLComparators
PROPAGATION DELAY
vs. INPUT OVERDRIVE
INPUT OVERDRIVE (mV)
PROPAGATION DELAY (ns)
tPD+
tPD-S = 10Ω
CLOAD = 15pF
MAX907 TOC0110010k
PROPAGATION DELAY
vs. SOURCE IMPEDANCE
SOURCE IMPEDANCE (Ω)
PROPAGATION DELAY (ns)
VOD = 5mV
CLOAD = 15pF
tPD+PD-
MAX907 TOC2120
PROPAGATION DELAY
vs. CAPACITIVE LOAD
CAPACITIVE LOAD (pF)
PROPAGATION DELAY (ns)60100
VOD = 5mV
RS = 10Ω
tPD+PD-
MAX907 TOC03
PROPAGATION DELAY
vs. TEMPERATURE
TEMPERATURE (°C)
PROPAGATION DELAY (ns)100
-4008040120OD = 5mV
RS = 10Ω
CLOAD = 15pF
tPD+
tPD-
MAX907 TOC04
OUTPUT HIGH VOLTAGE
vs. SOURCE CURRENT
ISOURCE (μA)
(V)4.0
VIN = 100mV
TA = -55°C
TA = +125°C
TA = +25°C
MAX907 TOC05
Typical Operating Characteristics
(V+ = 5V, TA= +25°C, unless otherwise noted.)
OUTPUT LOW VOLTAGE
vs. SINK CURRENT
ISINK (mA)
(V)
VIN = 100mV
TA = -55°C
TA = +125°CA = +25°C
MAX907 TOC06
MAX907
TOTAL POSITIVE SUPPLY CURRENT
vs. POSITIVE SUPPLY VOLTAGE
(OUTPUTS AT VOL)
VCC (V)
TOTAL I
(mA)
TA = -55°CA = +125°CA = +25°C
MAX907 TOC07
MAX907
TOTAL POSITIVE SUPPLY CURRENT
vs. POSITIVE SUPPLY VOLTAGE
(OUTPUTS AT VOH)
VCC (V)
TOTAL I
(mA)
TA = -55°C
TA = +125°C
TA = +25°C
MAX907 TOC08
MAX908
TOTAL POSITIVE SUPPLY CURRENT
vs. POSITIVE SUPPLY VOLTAGE
(OUTPUTS AT VOL)
VCC (V)
TOTAL I
(mA)
TA = -55°C
TA = +125°C
TA = +25°C
MAX907 TOC09

Partno	Mfg	Dc	Qty	Available	Descript
MAX908	MAXIM	N/a	20	avai	Dual/Quad/Single, High-Speed, Ultra-Low-Power, Single-Supply TTL Comparators