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Número de pieza | MAX4178EUK-T | |
Descripción | 330MHz / Gain of !/Gain of @ Closed-Loop Buffers | |
Fabricantes | Maxim Integrated | |
Logotipo | ||
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330MHz, Gain of +1/Gain of +2
Closed-Loop Buffers
_______________General Description
The 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/MAX4278 feature 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/MAX4278 are ideally suited for driving
50Ω or 75Ω loads. They are the perfect choice for high-
speed cable-driving applications, such as video routing.
The MAX4178/MAX4278 are available in DIP, SO, and
space-saving µMAX and SOT23 packages.
________________________Applications
Broadcast and High-Definition TV Systems
Video Switching and Routing
High-Speed Cable Drivers
Communications
Medical Imaging
Precision High-Speed DAC/ADC Buffers
____________________________Features
o High 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)
o Low Differential Phase/Gain Error: 0.01°/0.04%
o 8mA Supply Current
o 1µA Input Bias Current
o 0.5mV Input Offset Voltage
o 5nV/√Hz Input-Referred Voltage Noise
o 2pA/√Hz Input-Referred Current Noise
o 1.0% Max Gain Error with 100Ω Load
o Short-Circuit Protected
o 8000V ESD Protection
o Available in Space-Saving SOT23 Package
______________Ordering Information
PART
TEMP. RANGE
PIN-
PACKAGE
SOT
TOP MARK
MAX4178EPA -40°C to +85°C 8 Plastic DIP
–
MAX4178ESA -40°C to +85°C 8 SO
–
MAX4178EUA -40°C to +85°C 8 µMAX
–
MAX4178EUK-T -40°C to +85°C 5 SOT23
ABYX
MAX4178MJA -55°C to +125°C 8 CERDIP
–
Ordering Information continued at end of data sheet.
__________Typical Operating Circuit _________________Pin Configurations
TOP VIEW
VIN
75Ω
MAX4278
75Ω
VIDEO/RF CABLE DRIVER
VOUT
75Ω
OUT 1
VEE 2
IN 3
MAX4178
MAX4278
5 VCC N.C. 1
GND 2
IN 3
4 GND VEE 4
MAX4178
MAX4278
8 N.C.
7 VCC
6 OUT
5 N.C.
SOT23-5
DIP/SO/µMAX
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
1 page 330MHz, Gain of +1/Gain of +2
Closed-Loop Buffers
____________________________Typical Operating Characteristics (continued)
(VCC = +5V, VEE = -5V, RL = 100Ω, CL = 0pF, TA = +25°C, unless otherwise noted.)
MAX4278 LARGE-SIGNAL
PULSE RESPONSE (CL = 0pF)
MAX4178 SMALL-SIGNAL
PULSE RESPONSE (CL = 50pF)
MAX4178 LARGE-SIGNAL
PULSE RESPONSE (CL = 50pF)
IN
(1V/div)
GND IN
GND IN
GND
OUT
(2V/div)
GND OUT
GND OUT
GND
TIME (10ns/div)
TIME (20ns/div)
TIME (20ns/div)
MAX4178 SMALL-SIGNAL
PULSE RESPONSE (CL = 100pF)
MAX4178 LARGE-SIGNAL
PULSE RESPONSE (CL = 100pF)
MAX4278 SMALL-SIGNAL
PULSE RESPONSE (CL = 50pF)
IN
IN
GND IN
GND (50mV/
GND
div)
OUT
OUT
GND OUT
GND (100mV/
div)
GND
TIME (20ns/div)
MAX4278 LARGE-SIGNAL
PULSE RESPONSE (CL = 50pF)
TIME (20ns/div)
MAX4278 SMALL-SIGNAL
PULSE RESPONSE (CL = 100pF)
TIME (20ns/div)
MAX4278 LARGE-SIGNAL
PULSE RESPONSE (CL = 100pF)
IN
(1V/div)
OUT
(2V/div)
IN
GND (50mV/
div)
OUT
GND
(100mV/
div)
GND
IN
(1V/div)
GND
OUT
(2V/div)
GND
GND
TIME (20ns/div)
TIME (20ns/div)
TIME (20ns/div)
_______________________________________________________________________________________ 5
5 Page 330MHz, Gain of +1/Gain of +2
Closed-Loop Buffers
________________________________________________________Package Information
______________________________________________________________________________________ 11
11 Page |
Páginas | Total 12 Páginas | |
PDF Descargar | [ Datasheet MAX4178EUK-T.PDF ] |
Número de pieza | Descripción | Fabricantes |
MAX4178EUK-T | 330MHz / Gain of !/Gain of @ Closed-Loop Buffers | Maxim Integrated |
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