HFA883

Features:

• This Circuit is Processed in Accordance to MIL-STD- 883 and is Fully Conformant Under the Provisions of Paragraph 1.2.1.
• User Programmable For Closed-Loop Gains of +1, -1 or +2 Without Use of External Resistors
• Low Differential Gain and Phase . . . . .0.02%/0.04 Deg.
• Low Distortion (HD3, 30MHz) . . . . . . . . . . -73dBc (Typ)
• Wide -3dB Bandwidth . . . . . . . . . . . . . . . 850MHz (Typ)
• Very High Slew Rate . . . . . . . . . . . . . . . 2400V/µs (Typ)
• Fast Settling (0.1%) . . . . . . . . . . . . . . . . . . . . 13ns (Typ)
• Excellent Gain Flatness (to 100MHz) . . . . 0.07dB (Typ)
• Excellent Gain Accuracy. . . . . . . . . . . . . . 0.99V/V (Typ)
• High Output Current . . . . . . . . . . . . . . . . . . 60mA (Typ)
• Fast Overdrive Recovery . . . . . . . . . . . . . . <10ns (Typ)


Application

• Video Switching and Routing
• Pulse and Video Amplifiers
• Wideband Amplifiers
• RF/IF Signal Processing
• Flash A/D Driver
• Medical Imaging Systems


Pinout




Specifications

Voltage Between V+ and V- . . . . . . . . . . . . . . . . . . . . . . . . 12V
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V
Voltage at Either Input Terminal . . . . . . . . .    . . . V+ to V_Output
Current (50% Duty Cycle) . . . . . . . . . . . . . . . . . . . . . . . ±55mA
Junction Temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . +175
ESD Rating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <2000V
Storage Temperature Range . . . . . . . . . . -65oC T_A +150
Lead Temperature (Soldering 10s). . . . . . . . . . . . . . . . . +300


Description

The HFA1112/883 is a closed loop buffer that achieves a high degree of gain accuracy, wide bandwidth, and low distortion. Manufactured on the Intersil proprietary complementary bipolar UHF-1 process, the HFA1112/883 also offers very fast slew rates, and high output current.

A unique feature of the HFA1112/883 pinout allows the user to select a voltage gain of +1, -1, or +2, without the use of any external components. The result is a more flexible product, fewer part types in inventory, and more efficient use of board space.

Component and composite video systems will also benefit from this buffer's performance, as indicated by the excellent gain flatness, and 0.02%/0.04 Deg. Differential Gain/Phase specifications (RL = 150Ω).Compatibility with existing op amp pinouts provides flexibility to upgrade low gain amplifiers, while decreasing component count. Unlike most buffers, the standard pinout provides an upgrade path should a higher closed loop gain be needed at a future date.This HFA1112/883 amplifier is available with programmable output clamps as the HFA1113/883. For applications requiring a standard buffer pinout, please refer to the HFA1110/883 datasheet.