MAX4178ESA+ Maxim Integrated, MAX4178ESA+ Datasheet - Page 10

• Manufacturer Part Number: MAX4178ESA+
• Description: Precision Amplifiers
• Manufacturer: Maxim Integrated

Specifications of MAX4178ESA+

• Rohs: yes

The MAX4178/MAX4278s’ high current-drive capability
makes them well suited for buffering the low-imped-
ance input of a high-speed flash ADC. With their low
output impedance, these buffers can drive the inputs of
the ADC with no loss of accuracy. Figure 4 shows a
preamp for digitizing video, using the 250Msps
MAX100 and the 500Msps MAX101 flash ADCs. Both of
these ADCs have a 50
input bandwidth.
330MHz, Gain of +1/Gain of +2
Closed-Loop Buffers
Figure 4. Preamp for Video Digitizer
Figure 5. High-Performance Video Distribution Amplifier
10
VIDEO IN
VIDEO IN
_____________________________________________________________________________________
MAX4278
MAX4178
MAX4278
input resistance and a 1.2GHz
75
75
75
Flash ADC Preamp
75
75
75
(MAX100/MAX101)
FLASH ADC
75
75
75
OUT1
OUT2
OUTN
The MAX4278 (A V = +2) makes an excellent driver for
multiple back-terminated 75
(Figure 5). The high current-output capability allows the
attachment of up to six ±2Vp-p, 150
MAX4278 at +25°C. With the output limited to ±1Vp-p,
the number of loads may double. For multiple gain-of-2
video line drivers in a single package, refer to the
MAX496/MAX497data sheet.
TRANSISTOR COUNT: 175
SUBSTRATE CONNECTED TO V
___________________Chip Information
MAX4278EPA
MAX4278ESA
MAX4278EUA
MAX4278EUK-T -40°C to +85°C
MAX4278MJA
Ordering Information (continued)
PART
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C 8 CERDIP
TEMP. RANGE
Video Distribution Amplifier
High-Performance
PIN-
PACKAGE
8 Plastic DIP
8 SO
8 µMAX
5 SOT23-5
EE
video coaxial cables
loads to the
TOP MARK
ABYY
SOT
–
–
–
–