MAX4278EPA+ ,330MHz, Gain of +1/Gain of +2 Closed-Loop BuffersApplicationsOrdering InformationBroadcast and High-Definition TV SystemsVideo Switching and Routing ..
MAX4278ESA ,330MHz / Gain of !/Gain of @ Closed-Loop BuffersMAX4178/MAX427819-0468; Rev 1; 5/97330MHz, Gain of +1/Gain of +2 Closed-Loop Buffers_______________
MAX4278ESA ,330MHz / Gain of !/Gain of @ Closed-Loop BuffersApplicationsBroadcast and High-Definition TV Systems ______________Ordering InformationVideo Switch ..
MAX4278EUA ,330MHz / Gain of !/Gain of @ Closed-Loop Buffersapplications, such as video routing.The MAX4178/MAX4278 are available in DIP, SO, and' Available in ..
MAX427CPA ,Low Noise, High-Precision Op AmpsFeatures
. 15W Max Offset Voltage
. 0.8uVI'C Max Drift
. Low Nolse Performance:
4.5nVNH Max ..
MAX427CPA ,Low Noise, High-Precision Op AmpsApplications Information section.
tY refers to the average trend line of Offset Volt
after the ..
MAX811LEUS ,4-Pin µP Voltage Monitors with Manual Reset InputGeneral Description Benefits and
MAX811LEUS+T ,4-Pin µP Voltage Monitors with Manual Reset InputFeaturesThe MAX811/MAX812 are low-power microprocessor• Integrated Voltage Monitor Increases System ..
MAX811LEUS-T ,Microprocessor voltage monitor with manual reset input. Reset threshold voltage 4.63VMAX811/MAX81219-0411; Rev 3; 3/994-Pin µP Voltage Monitors with Manual Reset Input________________
MAX811MEUS ,4-Pin µP Voltage Monitors with Manual Reset InputApplicationsSelect the letter corresponding to the desired nominal resetthreshold voltage, and inse ..
MAX811MEUS ,4-Pin µP Voltage Monitors with Manual Reset Input4-Pin µP Voltage Monitors MAX811/MAX812with Manual Reset Input
MAX811MEUS+ ,4-Pin µP Voltage Monitors with Manual Reset InputGeneral Description Benefits and
MAX4278EPA+
330MHz, Gain of +1/Gain of +2 Closed-Loop Buffers
MAX4278
VIN
75Ω75Ω
VOUT 75Ω
VIDEO/RF CABLE DRIVERDIP/SO/μMAXTOP VIEW
OUTIN
N.C.VEE
N.C.
VCCGND
N.C.
MAX4178
MAX42783
VEE
GNDINVCCOUT
SOT23-5MAX4178
MAX4278
19-0468; Rev 2; 11/99
General DescriptionThe MAX4178/MAX4278 are ±5V, wide-bandwidth, fast-
settling, closed-loop buffers featuring high slew rate, high
precision, high output current, low noise, and low differen-
tial gain and phase errors. The MAX4178, with a -3dB
bandwidth of 330MHz, is preset for unity voltage gain
(0dB). The MAX4278 is preset for a voltage gain of +2
(6dB) and has a 310MHz -3dB bandwidth.
The MAX4178/MAX4278feature the high slew rate and
low power that are characteristic of current-mode feed-
back amplifiers. However, unlike conventional current-
mode feedback amplifiers, these devices have a
unique input stage that combines the benefits of cur-
rent-feedback topology with those of the traditional volt-
age-feedback topology. This combination results in low
input offset voltage and bias current, low noise, and
high gain precision and power-supply rejection.
The MAX4178/MAX4278are ideally suited for driving
50Ωor 75Ωloads. They are the perfect choice for high-
speed cable-driving applications, such as video routing.
The MAX4178/MAX4278 are available in DIP, SO,
space-saving µMAX, and SOT23 packages.
________________________ApplicationsBroadcast and High-Definition TV Systems
Video Switching and Routing
High-Speed Cable Drivers
Communications
Medical Imaging
Precision High-Speed DAC/ADC Buffers
____________________________FeaturesHigh Speed
330MHz -3dB Bandwidth (MAX4178)
310MHz -3dB Bandwidth (MAX4278)
250MHz Full-Power Bandwidth (VOUT= 2Vp-p)
150MHz 0.1dB Flatness Bandwidth
1300V/µs Slew Rate (MAX4178)
1600V/µs Slew Rate (MAX4278)Low Differential Phase/Gain Error: 0.01°/0.04%8mA Supply Current1µA Input Bias Current 0.5mV Input Offset Voltage 5nV/√HHzz
Input-Referred Voltage Noise 2pA/√HHzz
Input-Referred Current Noise1.0% Max Gain Error with 100ΩLoadShort-Circuit Protected8000V ESD ProtectionAvailable in Space-Saving SOT23 Package
MAX4178/MAX4278
330MHz, Gain of +1/Gain of +2
Closed-Loop Buffers
PART
MAX4178EPAMAX4178ESA
MAX4178EUA-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP. RANGEPIN-
PACKAGE8 Plastic DIP
8 SO
8 µMAX
EVALUATION KIT
AVAILABLE
Ordering Information
Ordering Information continued at end of data sheet.
Pin ConfigurationsTypical Operating CircuitMAX4178MJA-55°C to +125°C8 CERDIP
MAX4178EUK-T-40°C to +85°C5 SOT23-5
SOT
TOP MARKABYX
MAX4178/MAX4278
330MHz, Gain of +1/Gain of +2
Closed-Loop Buffers
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS(VCC= +5V, VEE= -5V, VOUT= 0, RL= ∞, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.)
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.
Supply Voltage (VCCto VEE)..................................................12V
Input Voltage....................................(VCC+ 0.3V) to (VEE- 0.3V)
Output Short-Circuit Duration (to GND).....................Continuous
Continuous Power Dissipation (TA= +70°C)
SOT23 (derate 7.10mW/°C above +70°C)..................571mW
Plastic DIP (derate 9.09mW/°C above +70°C)...........727mW
SO (derate 5.88mW/°C above +70°C)........................471mW
µMAX (derate 4.10mW/°C above +70°C)...................330mW
CERDIP (derate 8.00mW/°C above +70°C)................640mW
Operating Temperature Ranges (Note 1)
MAX4178E_A/MAX4278E_A...........................-40°C to +85°C
MAX4178EUK/MAX4278EUK.........................-40°C to +85°C
MAX4178MJA/MAX4278MJA.......................-55°C to +125°C
Storage Temperature Range.............................-65°C to +160°C
Lead Temperature (soldering, 10s).................................+300°C
CONDITIONSUNITSMINTYPMAXSYMBOLPARAMETERMAX4178±2.5±3.0
MAX4278V±1.25±1.5VINInput Voltage Range
µV/°C2TCVOSInput Offset Voltage DriftµAIBInput Bias Current1RINInput Resistance= ±4.5V to ±5.5VdB7090PSRRPower-Supply Rejection
Ratio
+0.990+1.000MAX4178 (Note 2)+0.985+1.000
+1.98+2.01MAX4278 (Note 3)
V/V
+1.97+2.01Voltage Gain
VOUT= ±1mV to ±2V%0.01AV(LIN)Gain Linearity
f = DCΩ0.1ROUTOutput Resistance
Short to GNDmA150ISCShort-Circuit Output Current= 100Ω±2.5±3.0
TA = +25°C= 100Ω= 50Ω= 100Ω= 50Ω= 50ΩV±2.0±2.5VOUTOutput Voltage Swing= +25°C810mATA = TMINto TMAXISYQuiescent Supply CurrentMAX4_78E_ _
MAX4_78MJA
TA = -40°C to +85°CmA70100IOUTMinimum Output Current
TA = TMINto TMAX5
Note 2:Voltage Gain = (VOUT- VOS) / VINmeasured at VIN= ±2.5V.
Note 3:Voltage Gain = (VOUT- VOS) / VINmeasured at VIN= ±1.25V.
TA = +25°C0.53.0
TA =
TMINto TMAX5.0VOSInput Offset Voltage
MAX4_78ESA/EPA/EUA/MJA
MAX4_78EUK
MAX4_78ESA/EPA/EUA/MJA
MAX4_78EUK
Note 1:Specifications for the MAX4_78EUK (SOT23 packages) are 100% tested at TA= +25°C, and guaranteed by design over
temperature.
MAX4178/MAX4278
330MHz, Gain of +1/Gain of +2
Closed-Loop Buffers
AC ELECTRICAL CHARACTERISTICS(VCC= +5V, VEE= -5V, RL= 100Ω, TA= +25°C, unless otherwise noted.)
Note 4:Tested with a 3.58MHz video test signal with an amplitude of 40IRE superimposed on a linear ramp (0 to 100IRE). An IRE is
a unit of video signal amplitude developed by the Institute of Radio Engineers; 140IRE = 1V in color systems.
CONDITIONSVOUT= 2V stepns2tR, tFRise/Fall Times
f = 10MHznV/√Hz5enInput Voltage Noise Density
f = 10MHzpA/√Hz2inInput Current Noise Density
0.04f = 3.58MHz%0.04DGDifferential Gain
(Note 4)
f = 5MHz, VOUT= 2Vp-pdBC-81SFDRSpurious-Free Dynamic RangefC= 10MHz,
VOUT= 2Vp-pdBm31IP3Third-Order Intercept
UNITSMINTYPMAXPARAMETERMAX4278
330VOUT≤0.1Vp-pMHz310BWSmall-Signal, -3dB BandwidthMAX4178
to 0.01%VOUT= 2V stepns12tSSettling Timeto 0.1%
MAX4178
MAX4278
MAX4278
MAX4178f = 3.58MHzdegrees0.01DPDifferential Phase
(Note 4)
MAX4278
MAX4178fC= 10MHz,
VOUT= 2Vp-pdB-59THDTotal Harmonic Distortion
MAX4178
MAX42781CINInput Capacitance
MAX4178
MAX4278-74
SYMBOL150MAX4178
150MAX4278MHzVOUT≤0.1Vp-pBW(0.1dB)Small-Signal, ±0.1dB Bandwidth
1300MAX4178
MAX4278
250VOUT= 2Vp-p
V/µs
MHz250FPBW
VOUT= ±2Vp-pMAX4278
Full-Power Bandwidth MAX4178Slew Rate
__________________________________________Typical Operating Characteristics(VCC= +5V, VEE= -5V, RL= 100Ω, CL= 0pF, TA = +25°C, unless otherwise noted.)
MAX4178/MAX4278
330MHz, Gain of +1/Gain of +2
Closed-Loop Buffers10M100M1G
MAX4178
SMALL-SIGNAL GAIN vs. FREQUENCYMAX4178/4278-01
FREQUENCY (Hz)
GAIN (dB)
-0.710M100M1G
MAX4178
GAIN FLATNESS vs. FREQUENCYMAX4178/4278-02
FREQUENCY (Hz)
GAIN (dB)10M100M1G
MAX4178
LARGE-SIGNAL GAIN vs. FREQUENCYMAX4178/4278-03
FREQUENCY (Hz)
GAIN (dB)
VO = 2Vp-p10M100M1G
MAX4278
SMALL-SIGNAL GAIN vs. FREQUENCYMAX4178/4278-04
FREQUENCY (Hz)
GAIN (dB)
5.310M100M1G
MAX4278
GAIN FLATNESS vs. FREQUENCYMAX4178/4278-05
FREQUENCY (Hz)
GAIN (dB)10M100M1G
MAX4278
LARGE-SIGNAL GAIN vs. FREQUENCYMAX4178/4278-06
FREQUENCY (Hz)
GAIN (dB)
VO = 2Vp-p
MAX4178
LARGE-SIGNAL
PULSE RESPONSE (CL = 0pF)MAX4178/4278-08
TIME (10ns/div)
VOLTAGE (2V/div)
OUT
GND
GND
MAX4278
SMALL-SIGNAL
PULSE RESPONSE (CL = 0pF)MAX4178/4278-09
TIME (10ns/div)
VOLTAGE
(50mV/
div)
OUT
(100mV/
div)
GND
GND
MAX4178
SMALL-SIGNAL
PULSE RESPONSE (CL = 0pF)MAX4178/4278-07
TIME (10ns/div)
VOLTAGE (100mV/div)
OUT
GND
GND
Typical Operating Characteristics (continued)(VCC= +5V, VEE= -5V, RL= 100Ω, CL= 0pF, TA = +25°C, unless otherwise noted.)
MAX4178/MAX4278
330MHz, Gain of +1/Gain of +2
Closed-Loop Buffers
MAX4278
LARGE-SIGNAL
PULSE RESPONSE (CL = 0pF)MAX4178/4278-10
TIME (10ns/div)
VOLTAGE
(1V/div)
OUT
(2V/div)
GND
GND
MAX4178
SMALL-SIGNAL
PULSE RESPONSE (CL = 50pF)MAX4178/4278-11
TIME (20ns/div)
VOLTAGE (100mV/div)
OUT
GND
GND
MAX4178
LARGE-SIGNAL
PULSE RESPONSE (CL = 50pF)MAX4178/4278-12
TIME (20ns/div)
VOLTAGE (2V/div)
OUT
GND
GND
MAX4178
SMALL-SIGNAL
PULSE RESPONSE (CL = 100pF)MAX4178/4278-13
TIME (20ns/div)
VOLTAGE (100mV/div)
OUT
GND
GND
MAX4178
LARGE-SIGNAL
PULSE RESPONSE (CL = 100pF)MAX4178/4278-14
TIME (20ns/div)
VOLTAGE (2V/div)
OUT
GND
GND
MAX4278
SMALL-SIGNAL
PULSE RESPONSE (CL = 50pF)MAX4178/4278-15
TIME (20ns/div)
VOLTAGE
(50mV/
div)
OUT
(100mV/
div)
GND
GND
MAX4278
LARGE-SIGNAL
PULSE RESPONSE (CL = 50pF)MAX4178/4278-16
TIME (20ns/div)
VOLTAGE
(1V/div)
OUT
(2V/div)
GND
GND
MAX4278
SMALL-SIGNAL
PULSE RESPONSE (CL = 100pF)MAX4178/4278-17
TIME (20ns/div)
VOLTAGE
(50mV/
div)
OUT
(100mV/
div)
GND
GND
MAX4278
LARGE-SIGNAL
PULSE RESPONSE (CL = 100pF)MAX4178/4278-18
TIME (20ns/div)
VOLTAGE
(1V/div)
OUT
(2V/div)
GND
GND
Typical Operating Characteristics (continued)(VCC= +5V, VEE= -5V, RL= 100Ω, CL= 0pF, TA = +25°C, unless otherwise noted.)
MAX4178/MAX4278
330MHz, Gain of +1/Gain of +2
Closed-Loop BuffersMAX4178
DIFFERENTIAL PHASE/GAIN
IRE
IRE
DIFF PHASE (deg)
DIFF GAIN (%)
MAX4178/4278-19
RL = 150Ω
RL = 150Ω
MAX4278
DIFFERENTIAL PHASE/GAIN
IRE
IRE
DIFF PHASE (deg)
DIFF GAIN (%)
MAX4178/4278-20
RL = 150Ω
RL = 150Ω
-10010k1M10M100k100M
MAX4178
HARMONIC DISTORTION
vs. FREQUENCYMAX4178/4278-21
FREQUENCY (Hz)
DISTORTION (dB)
TOTAL HARMONIC DISTORTION
SECOND HARMONIC
THIRD HARMONIC
10k1M10M100k100M
MAX4278
HARMONIC DISTORTION
vs. FREQUENCYMAX4178/4278-22
FREQUENCY (Hz)
DISTORTION (
SECOND HARMONIC
TOTAL HARMONIC DISTORTION
THIRD HARMONIC
INPUT OFFSET VOLTAGE (VOS)
vs. TEMPERATURE
MAX4178/4278-25
TEMPERATURE (˚C)
INPUT OFFSET VOLTAGE (µV)
VIN = 0V
30k100k1M10M100M
POWER-SUPPLY REJECTION
vs. FREQUENCYMAX4178/4278-23
FREQUENCY (Hz)
POWER-SUPPLY REJECTION (
MAX4278
MAX4178
100k1M10M100M500M
OUTPUT IMPEDANCE
vs. FREQUENCYMAX4178/4278-24
FREQUENCY (Hz)
OUTPUT IMPEDANCE (
MAX4278
MAX4178
QUIESCENT SUPPLY CURRENT (ISY)
vs. TEMPERATURE
MAX4178/4278-26
TEMPERATURE (˚C)
QUIESCENT SUPPLY CURRENT (mA)2
INPUT BIAS CURRENT (IB)
vs. TEMPERATURE
MAX4178/4278-27
TEMPERATURE (˚C)
INPUT BIAS CURRENT (µA)
VIN = 0V