HA-5020
100MHz Current Feedback Video Amplifier With Disable

Key Features

• Wide Unity Gain Bandwidth 100MHz
• Slew Rate 800V/µs
• Output Current ±30mA (Min)
• Drives 3.5V into 75Ω
• Differential Gain 0.03%
• Differential Phase 0.03°
• Low Input Voltage Noise 4.5nV/√Hz
• Low Supply Current 10mA (Max)
• Wide Supply Range ±5V to ±15V
• Output Enable/Disable
• High Performance Replacement for EL2020
• Pb-Free Plus Anneal Available (RoHS Compliant)

Description

The HA-5020 is a wide bandwidth, high slew rate amplifier optimized for video applications and gains between 1 and 10. Manufactured on Intersil's Reduced Feature Complementary Bipolar DI process, this amplifier uses current mode feedback to maintain higher bandwidth at a given gain than conventional voltage feedback amplifiers. Since it is a closed loop device, the HA-5020 offers better gain accuracy and lower distortion than open loop buffers.

The HA-5020 features low differential gain and phase and will drive two double terminated 75Ω coax cables to video levels with low distortion. Adding a gain flatness performance of 0.1dB makes this amplifier ideal for demanding video applications. The bandwidth and slew rate of the HA-5020 are relatively independent of closed loop gain. The 100MHz unity gain bandwidth only decreases to 60MHz at a gain of 10. The HA-5020 used in place of a conventional op amp will yield a significant improvement in the speed power product. To further reduce power, HA-5020 has a disable function which significantly reduces supply current, while forcing the output to a true high impedance state. This allows the outputs of multiple amplifiers to be wire-OR'd into multiplexer configurations. The device also includes output short circuit protection and output offset voltage adjustment.

For multi channel versions of the HA-5020 see the HA5022 dual with disable, HA5023 dual, HA5013 triple and HA5024 quad with disable op amp data sheets.

Applications

• Unity Gain Video/Wideband Buffer
• Video Gain Block
• Video Distribution Amp/Coax Cable Driver
• Flash A/D Driver
• Waveform Generator Output Driver
• Current to Voltage Converter; D/A Output Buffer
• Radar Systems
• Imaging Systems