MAX9107ESA+T ,25ns, Dual/Quad/Single, Low-Power, TTL Comparatorsfeatures an output latch but does not have comple-mentary outputs.Ordering InformationThe dual MAX9 ..
MAX9109EUT+T ,25ns, Dual/Quad/Single, Low-Power, TTL ComparatorsELECTRICAL CHARACTERISTICS(V = +5V, V = 0, V = 0 (MAX9109 only), T = T to T , unless otherwise note ..
MAX9109EXT+T ,25ns, Dual/Quad/Single, Low-Power, TTL ComparatorsMAX9107/MAX9108/MAX910919-2045; Rev. 2; 1/0725ns, Dual/Quad/Single, Low-Power,TTL Comparators
MAX9110ESA ,Single/Dual LVDS Line Drivers with Ultra-Low Pulse Skew in SOT23ApplicationsTEMP. PIN- TOPPARTLaser Printers Network Switches/RoutersRANGE PACKAGE MARKDigital Copi ..
MAX9110ESA+ ,Single/Dual LVDS Line Driver with Ultra-Low Differential Skew in SOT23applications, such as laser printers and digital copiers.♦ Low 22mW Power Dissipation at 3.3V The M ..
MAX9111EKA+T ,Single/Dual LVDS Line Receivers with Ultra-Low Pulse Skew in SOT23applications requiring minimum power♦ Space-Saving 8-Pin SOT23 and SO Packagesconsumption, space, a ..
MB88344 ,8-Bit D/A Converter with Operational Amplifier Output BuffersFUJITSU SEMICONDUCTORDS04-13505-3EDATA SHEETLINEAR IC8-Bit D/A Converter with Operational Amplifier ..
MB88344 ,8-Bit D/A Converter with Operational Amplifier Output BuffersFUJITSU SEMICONDUCTORDS04-13505-3EDATA SHEETLINEAR IC8-Bit D/A Converter with Operational Amplifier ..
MB88344 ,8-Bit D/A Converter with Operational Amplifier Output BuffersFUJITSU SEMICONDUCTORDS04-13505-3EDATA SHEETLINEAR IC8-Bit D/A Converter with Operational Amplifier ..
MB88345 ,D/A Converter for Digital Tuning (24-channel, 8-bit, on-chip OP amp)FUJITSU SEMICONDUCTORDS04-13508-2EDATA SHEETLinear IC ConverterCMOSD/A Converter for Digital Tuni ..
MB88345PF ,D/A Converter for Digital Tuning (24-channel, 8-bit, on-chip OP amp)FEATURES• Ultra-low power consumption (1.1 mW/ch : typical) • Compact space-saving package (QFP-32 ..
MB88346B ,R-2R TYPE 8-BIT D/A CONVERTER WITH OPERATIONAL AMPLIFIER OUTPUT BUFFERSFUJITSU SEMICONDUCTORDS04-13501-2EDATA SHEETLINEAR ICR-2R TYPE 8-BIT D/A CONVERTER WITHOPERATIONAL ..
MAX9107EKA+T-MAX9107ESA+-MAX9107ESA+T-MAX9109EUT+T-MAX9109EXT+T
25ns, Dual/Quad/Single, Low-Power, TTL Comparators
MAX9107/MAX9108/MAX9109
25ns, Dual/Quad/Single, Low-Power
TTLComparatorsTOP VIEW5
N.C.
OUT
GND
VCC
IN+
IN-
N.C.
MAX910915
SOT23/SOVCC
OUTB
INB-
INB+
OUTA
INA-
INA+
GND
MAX910714
OUTD
IND-
IND+
GNDVCC
INA+
INA-
OUTA
MAX9108
INC+
INC-
OUTCOUTB
INB-
INB+
TSSOP/SODC
GND
IN-IN+VCCLE
OUTMAX9109
SC70/SOT23
Pin Configurations19-2045; Rev. 2; 1/07
General DescriptionThe MAX9107/MAX9108/MAX9109 dual/quad/single,
high-speed, low-power voltage comparators are
designed for use in systems powered from a single
+5V supply. Their 25ns propagation delay (with 10mV
input overdrive) is achieved with a power consumption
of only 1.75mW per comparator. The wide input com-
mon-mode range extends from 200mV below ground
to within 1.5V of the positive supply rail.
The MAX9107/MAX9108/MAX9109 outputs are TTL-
compatible, requiring no external pullup circuitry.
These easy-to-use comparators incorporate internal
hysteresis to ensure clean output switching even when
the devices are driven by a slow-moving input signal.
The MAX9107/MAX9108/MAX9109 are higher-speed,
lower-power, lower-cost upgrades to industry-standard
comparators MAX907/MAX908/MAX909. The MAX9109
features an output latch but does not have comple-
mentary outputs.
The dual MAX9107 is available in both 8-pin SO and
SOT23 packages. The quad MAX9108 is available in
14-pin TSSOP and SO packages while the single
MAX9109 is available in an ultra-small 6-pin SC70
package, a space-saving 6-pin SOT23 package and
an 8-pin SO package.
Applications
Features25ns Propagation Delay350µA (1.75mW) Supply Current Per Comparator Single 4.5V to 5.5V Supply OperationWide Input Range Includes GroundLow 500µV Offset VoltageInternal Hysteresis Provides Clean Switching
(2mV)TTL-Compatible Outputs Internal Latch (MAX9109 only)Space-Saving Packages:
6-Pin SC70 (MAX9109)
8-Pin SOT23 (MAX9107)
14-Pin TSSOP (MAX9108)
Ordering Information
PARTPIN-
PACKAGE
TOP
MARK
PKG
CODE
MAX9107EKA-T8 SOT23-8AAIBK8-5
MAX9107ESA8 SO—S8-2
MAX9108EUD14 TSSOP—U14-1
MAX9108ESD14 SO—S14-1
MAX9109EXT-T6 SC70-6AAUX6S-1
MAX9109EUT-T6 SOT23-6AARUU6-1
MAX9109ESA8 SO—S8-2
Battery-Powered Systems
A/D Converters
Line Receivers
Threshold Detectors/
Discriminators
Sampling Circuits
Zero-Crossing Detectors
Note:All devices are specified over the -40°C to +85°C operat-
ing temperature range.
MAX9107/MAX9108/MAX9109
25ns, Dual/Quad/Single, Low-Power,
TTLComparatorsPower-Supply Ranges
Supply Voltage (VCCto GND)..............................................6V
Differential Input Voltage........................-0.3V to (VCC+ 0.3V)
Common-Mode Input Voltage to GND...-0.3V to (VCC+ 0.3V)
Latch-Enable Input Voltage
(MAX9109 only)...................................-0.3V to (VCC+ 0.3V)
Current into Input Pins......................................................±20mA
Output Short-Circuit Duration to VCCor GND........................10s
Continuous Power Dissipation (TA= +70°C)
6-Pin SC70 (derate 3.1mW/°C above +70°C)..............245mW
6-Pin SOT23 (derate 8.7mW/°C above +70°C)696mW 8-Pin
SOT23 (derate 9.1mW/°C above +70°C).........................727mW
8-Pin SO (derate 5.9mW/°C above +70°C)..................470mW
14-Pin TSSOP (derate 9.1mW/°C above +70°C).........727mW
14-Pin SO (derate 8.33mW/°C above +70°C)..............666mW
Operating Temperature Range...........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
ELECTRICAL CHARACTERISTICS(VCC= +5V, VCM= 0, VLE= 0 (MAX9109 only), 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.
ABSOLUTE MAXIMUM RATINGS
PARAMETEROperating Voltage Range
Input Bias Current
Input Offset Current
Common-Mode Rejection Ratio
Power-Supply Rejection Ratio
Output High Voltage
Output Low Voltage
Output Rise Time
Output Fall Timetf
VOL
VOH
PSRR
CMRR
IOS
VCC
SYMBOLVOUT= 2.4V to 0.4V, CL= 10pF
VOUT= 0.4V to 2.4V, CL= 10pF
ISINK= 8mA
ISINK= 3.2mA
ISOURCE= 100µA
4.5V ≤VCC ≤5.5V
VCC= 5.5V (Note 5)= +25°C
Guaranteed by PSRR
CONDITIONSMINTYPMAX0.4ns
µV/V
µV/V
UNITSInput HysteresisVHYST(Note 3)2mV
Input Voltage RangeVCMR(Note 4)-0.2VCC- 1.5VSupply Current Per ComparatorVCC= +5.5V, all outputs lowICC0.350.7
Input Offset VoltageVOSTA= TMINto TMAX4.0mV(Note 2)
MAX9107/MAX9108/MAX9109
25ns, Dual/Quad/Single, Low-Power
TTLComparators
ELECTRICAL CHARACTERISTICS (continued)(VCC= +5V, VCM= 0, VLE= 0 (MAX9109 only), TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
Latch Hold Time
Latch Setup Time
Latch Input Current
Latch Input Voltage Low
Latch Input Voltage High
Propagation Delay Skew
Differential Propagation Delay
Propagation Delay
PARAMETERSYMBOLtPD+,tPD-
∆tPD
tPDskew
VIH
VIL
IIH, IIL(Note 8)
(Note 8)
(Note 8)
(Note 8)
(Note 8)
VIN= 100mV, VOD= 10mV
(Note 7)
VIN= 100mV, VOD= 10mV
(Note 6)
VIN= 100mV, VOD= 10mV
CONDITIONSMINTYPMAX0.41ns
UNITS
Note 1:Devices are 100% production tested at TA= +25°C. All temperature limits are guaranteed by design.
Note 2:Input Offset Voltage is defined as the center of the input-referred hysteresis zone. Specified for VCM= 0. See Figure 1.
Note 3: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 0. See Figure 1.
Note 4: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 5:Tested over the full-input voltage range (VCMR).
Note 6:Differential Propagation Delay is specified as the difference between any two channels in the MAX9107/MAX9108 (both
outputs making either a low-to-high or a high-to-low transition).
Note 7: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-).
Note 8:Latch specifications apply to MAX9109 only. See Figure 2.
MAX9107/MAX9108/MAX9109
25ns, Dual/Quad/Single, Low-Power,
TTLComparatorsINPUT OFFSET VOLTAGE
vs. TEMPERATURE
MAX9107/08/09 toc04
TEMPERATURE (°C)
INPUT OFFSET VOLTAGE (mV)
OUTPUT LOW VOLTAGE
vs. SINK CURRENT
MAX9107/08/09 toc07
ISINK (mA)
(V)
TA = -55°C
TA = +25°C
TA = +125°C
INPUT BIAS CURRENT
vs. TEMPERATURE
MAX9107/08/09 toc05
TEMPERATURE (°C)
INPUT CURRENT (nA)
TRIP POINT
vs. TEMPERATURE
MAX9107/08/09 toc06
TEMPERATURE (°C)
(mV)
VCM = 0
VTRIP+
VTRIP-
OUTPUT HIGH VOLTAGE
vs. SOURCE CURRENT
MAX9107/08/09 toc08
ISOURCE (μA)
(V)
TA = +125°C
TA = +25°C
TA = -55°C
PROPAGATION DELAY
vs. INPUT OVERDRIVE
MAX9107/08/09 toc09
INPUT OVERDRIVE (mV)
PROPAGATION DELAY (ns)
RS = 10Ω
CLOAD = 15pF
tPD+
tPD-
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
(OUTPUTS AT VOL)
MAX9107/08/09 toc01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
TA = +125°C
TA = +25°C
TA = -55°C
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
(OUTPUTS AT VOH)
MAX9107/08/09 toc02
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
TA = +125°C
TA = +25°C
TA = -55°C
INPUT VOLTAGE RANGE
vs. TEMPERATURE
MAX9107/08/09 toc03
TEMPERATURE (°C)
INPUT VOLTAGE RANGE (V)
VCMR+
VCMR-
__________________________________________Typical Operating Characteristics(VCC= 5V, VCM= 0, CL= 15pF, TA= +25°C, unless otherwise noted.)
MAX9107/MAX9108/MAX9109
25ns, Dual/Quad/Single, Low-Power
TTLComparators 5ns/div
PROPAGATION DELAY (tPD-)OVERDRIVE
10mV
OUTPUT
1V/div
MAX9107/08/09 toc11
INPUT
50mV/div
10ns/div
PROPAGATION DELAY (tPD+)INPUT
50mV/div
OVERDRIVE
10mV
OUTPUT
1V/div
MAX9107/08/09 toc10
50ns/div
SINUSOID 2MHz RESPONSEINPUT
50mV/div
OUTPUT
1V/div
MAX9107/08/09 toc12
PROPAGATION DELAY
vs. CAPACITIVE LOAD
MAX9107/08/09 toc13
CAPACITIVE LOAD (pF)
PROPAGATION DELAY (ns)
VOD = 10mV
RS = 10Ω
tPD+
tPD-
PROPAGATION DELAY
vs. TEMPERATURE
MAX9107/08/09 toc14
TEMPERATURE (°C)
PROPAGATION DELAY (ns)
VOD = 10mV
RS = 10Ω
CLOAD = 15pF
tPD+
tPD-10k1k100
PROPAGATION DELAY
vs. SOURCE IMPEDANCEMAX9107/08/09 toc15
SOURCE IMPEDANCE (Ω)
PROPAGATION DELAY (ns)
VOD = 5mV
CLOAD = 15pF
tPD+
____________________________Typical Operating Characteristics (continued)(VCC= 5V, VCM= 0, CL= 15pF, TA= +25°C, unless otherwise noted.)
MAX9107/MAX9108/MAX9109
25ns, Dual/Quad/Single, Low-Power,
TTLComparators
_______________Detailed Description
TimingNoise or undesired parasitic AC feedback cause most
high-speed comparators to oscillate in the linear region
(i.e., when the voltage on one input is at or near the
voltage on the other input). The MAX9107/MAX9108/
MAX9109 eliminate this problem by incorporating an
internal hysteresis of 2mV. When the two comparator
input voltages are equal, hysteresis effectively causes
one comparator input voltage to move quickly past the
other, thus taking the input out of the region where
oscillation occurs. Standard comparators require that
hysteresis be added through the use of external resis-
tors. The MAX9107/MAX9108/MAX9109’s fixed internal
hysteresis eliminates these resistors. To increase hys-
teresis and noise margin even more, add positive feed-
back with two resistors as a voltage divider from the
output to the noninverting input.
Adding hysteresis to a comparator creates two trip
points: one for the input voltage rising and one for the
input voltage falling (Figure 1). The difference between
these two input-referred trip points is the hysteresis.
The average of the trip points is the offset voltage.
Figure 1 illustrates the case where IN- is fixed and IN+
is varied. If the inputs were reversed, the figure would
look the same, except the output would be inverted.
The MAX9109 includes an internal latch, allowing the
result of a comparison to be stored. If LE is low, the
latch is transparent (i.e., the comparator operates as
though the latch is not present). The state of the com-
parator output is latched when LE is high (Figure 2).
______________________________________________________________Pin Description
PIN
MAX9109
MAX9107MAX9108
SC70/SOT23SO
NAMEFUNCTION1——OUTAChannel A Output2——INA-Channel A Inverting Input3——INA+Channel A Noninverting Input7——OUTBChannel B Output6——INB-Channel B Inverting Input5——INB+Channel B Noninverting Input8——OUTCChannel C Output9——INC-Channel C Inverting Input10——INC+Channel C Noninverting Input14——OUTDChannel D Output13——IND-Channel D Inverting Input12——IND+Channel D Noninverting Input—17OUTOutput—32IN+Noninverting Input—43IN-Inverting Input461VCCPositive Supply1126GNDGround—55LELatch E nab l e. The l atch i s tr ansp ar ent w hen LE i s l ow .——4, 8N.C.No Connection. Not internally connected.
MAX9107/MAX9108/MAX9109
25ns, Dual/Quad/Single, Low-Power
TTLComparatorsVTRIP+
VHYST
VTRIP-IN+
COMPARATOR
OUTPUT
VOH
VOL
VTRIP+ + VTRIP-VOS =
VIN- = 0
Figure 1. Input and Output Waveforms, Noninverting Input
Varied
Applications Information
Circuit LayoutBecause of the MAX9107/MAX9108/MAX9109’s high
gain bandwidth, special precautions must be taken to
realize the full high-speed capability. A printed circuit
board with a good, low-inductance ground plane is
mandatory. Place the decoupling capacitor (a 0.1µF
ceramic capacitor is a good choice) as close to VCCas
possible. Pay close attention to the decoupling capaci-
tor’s bandwidth, keeping leads short. Short lead
lengths on the inputs and outputs are also essential to
avoid unwanted parasitic feedback around the com-
parators. Solder the device directly to the printed circuit
board instead of using a socket.
Overdriving the InputsThe inputs to the MAX9107/MAX9108/MAX9109 may be
driven beyond the voltage limits given in the Absolute
Maximum Ratings, as long as the current flowing into the
device is limited to 25mA. However, if the inputs are over-
driven, the output may be inverted. The addition of an
external diode prevents this inversion by limiting the input
voltage to 200mV to 300mV below ground (see Figure 3).
Battery-Operated Infrared Data LinkIn Figure 4, the circuit allows reception of infrared data.
The MAX4400 converts the photodiode current to a
voltage, and the MAX9109 determines whether the
amplifier output is high enough to be called a “1.” The
current consumption of this circuit is minimal: the
MAX4400 and MAX9109 require typically 410µA and
350µA, respectively.
tPD+
VIN
VODts
1.4V
VOS
VOH
1.4V
VOL
COMPARE
LATCH
DIFFERENTIAL
INPUT
VOLTAGE
OUTPUT
Figure 2. MAX9109 Timing Diagram
10pF
1MΩ
+5V
+5V
0.1μF
DATA4
100kΩ
SIEMENS BP-104
PHOTODIODE
100kΩ
+5V
1000pF
1000pF
47kΩ
0.1μF
MAX9109
MAX4400
Figure 4. Battery-Operated Infrared Data Link Consumes Only
760µA
VCLAMP = -200mV TO -300mV
ISRC
1/2 MAX9107
Figure 3. Schottky Clamp for Input Driven Below Ground
