Features: • User Programmable Output Voltage Limiting
• User Programmable For Closed-Loop Gains of +1, -1 or
+2 Without Use of External Resistors
• Wide -3dB Bandwidth. . . . . . . . . . . . . . . . . . . . . . 850MHz
• Excellent Gain Flatness (to 100MHz). . . . . . . . . . ±0.07dB
• Low Differential Gain and Phase . . . 0.02%/0.04 Degrees
• Low Distortion (HD3, 30MHz) . . . . . . . . . . . . . . . . -73dBc
• Very Fast Slew Rate . . . . . . . . . . . . . . . . . . . . . 2400V/s
• Fast Settling Time (0.1%). . . . . . . . . . . . . . . . . . . . . 13ns
• High Output Current . . . . . . . . . . . . . . . . . . . . . . . . . 60mA
• Excellent Gain Accuracy . . . . . . . . . . . . . . . . . . . 0.99V/V
• Overdrive Recovery . . . . . . . . . . . . . . . . . . . . . . . . . <1ns
• Standard Operational Amplifier Pinout
• Pb-Free Plus Anneal Available (RoHS Compliant)Application• RF/IF Processors
• Driving Flash A/D Converters
• High-Speed Communications
• Impedance Transformation
• Line Driving
• Video Switching and Routing
• Radar Systems
• Medical Imaging SystemsPinout
SpecificationsVoltage Between V+ and V- . . . . . . . . . . . . . . .. . . . . . . . . . . . .12V
DC Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VSUPPLY
Voltage at VH or VL Terminal . . . . . . . . . . . . . (V+) + 2V to (V-) - 2V
Output Current (50% Duty Cycle) . . . . . . . . . . . . . . . . . . . . . 60mA
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
DescriptionThe HFA1113 is a high speed Buffer featuring user programmable gain and output limiting coupled with ultra high speed performance. This buffer is the ideal choice for high frequency applications requiring output limiting, especially those needing ultra fast overload recovery times. The output limiting function allows the designer to set the maximum positive and negative output levels, thereby protecting later stages from damage or input saturation. The sub-nanosecond overdrive recovery time quickly returns the amplifier to linear operation following an overdrive condition.
A unique feature of the HFA1113 pinout allows the user to select a voltage gain of +1, -1, or +2, without the use of any external components, as described in the "Application Information" section. 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.
Component and composite video systems will also benefit from this HFA1113 buffer's performance, as indicated by the excellent gain flatness, and 0.02%/0.04 Degree Differential Gain/Phase specifications (RL = 150).
For Military product, refer to the HFA1113/883 data sheet.
HFA1113 Data Sheet
