HFA1412IBZ

DATASHEET NOT RECOMMENDED FOR NEW DESIGNS NO RECOMMENDED REPLACEMENT contact our Technical Support Center at 1-888-INTERSIL or www.intersil.com/tsc HFA1412 FN4152 Rev 4.00 January 23, 2006 Quad, 350MHz, Low Power, Programmable Gain Buffer Amplifier The HFA1412 is a quad closed loop Buffer featuring user programmable gain and high speed video performance. A unique feature of the HFA1412’s pinout allows the user to select a voltage gain of +1, -1, or +2 (see the “Application Information” section). The on-chip gain setting resistors eliminate eight external resistors, thus saving board space or freeing up space for termination resistors. The on-chip feedback resistor is preset at the optimum value, and also eliminates worries about parasitic feedback capacitance. Additionally, the capacitance sensitive summing node is buried inside the package where it is unaffected by PCB parasitics. 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. Features • User Programmable For Closed-Loop Gains of +1, -1 or +2 Without Use of External Resistors • Wide -3dB Bandwidth. . . . . . . . . . . . . . . . . . . . . . 350MHz • Low Supply Current . . . . . . . . . . . . . . . . . . . . 6mA/Buffer • Excellent Gain Flatness (to 100MHz). . . . . . . . . . 0.08dB • Low Differential Gain and Phase . . . . 0.03%/0.02 Degree • Very Fast Slew Rate . . . . . . . . . . . . . . . . . . . . . 1650V/s • Fast Settling Time (0.1%). . . . . . . . . . . . . . . . . . . . . 28ns • High Output Current . . . . . . . . . . . . . . . . . . . . . . . . . 55mA • Excellent Gain Accuracy . . . . . . . . . . . . . . . . . . . 0.99V/V • Overdrive Recovery . . . . . . . . . . . . . . . . . . . . . . . .