HFA1149

Features:

• Wide - 3dB Bandwidth (AV = +2) . . . . . . . . . . . . . 450MHz
• Gain Flatness (To 250MHz) . . . . . . . . . . . . . . . . . . . 0.8dB
• Very Fast Slew Rate (AV = +2) . . . . . . . . . . . . . . 1100V/µs
• High Input Impedance . . . . . . . . . . . . . . . . . . . . . . 1.7MΩ
• Differential Gain/Phase. . . . . . . . . . . 0.02%/0.02 Degrees
• Low Supply Current . . . . . . . . . . . . . . . . . . . . . . . . . 10mA
• Fast Output Disable/Enable . . . . . . . . . . . . . . . 12ns/20ns


Application

• Professional Video Processing
• Video Switchers and Routers
• Medical Imaging
• PC Multimedia Systems
• Video Pixel Switching
• Video Distribution Amplifiers
• Flash Converter Drivers
• Radar/IF Processing


Pinout




Specifications

Voltage Between V+ and V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V
DC Analog Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . .  VSUPPLY
Digital Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . .VSUPPLY ±1V
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8V
Output Current (Note 2) . . . . . . . . . . . . . . . .Short Circuit Protected
30mA Continuous
60mA 50% Duty Cycle


Description

The HFA1149 is a high speed, low power, current feedback amplifier built with Intersil's proprietary complementary bipolar UHF-1 process. This amplifier features a unique combination of power and performance specifically tailored for video applications.

The HFA1149 incorporates an output disable pin which is TTL/CMOS compatible, and user programmable for polarity (active high or low). This feature eliminates the inverter required between amplifiers in multiplexer configurations. The ultra-fast (12ns/20ns) disable/enable times make the HFA1149 the obvious choice for pixel switching and other high speed multiplexing applications. The HFA1149 is a high performance, pin compatible upgrade for the popular HA-5020 and HFA1145, as well as the CLC410. For a comparably performing op amp without an output disable, please refer to the HFA1109 data sheet.