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EL5364IUZA-T7 Datasheet(PDF) 9 Page - Intersil Corporation |
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EL5364IUZA-T7 Datasheet(HTML) 9 Page - Intersil Corporation |
9 / 12 page 9 Applications Information Product Description The EL5164, EL5165, and EL5364 are current-feedback operational amplifiers that offers a wide -3dB bandwidth of 600MHz and a low supply current of 5mA per amplifier. The EL5164, EL5165, and EL5364 work with supply voltages ranging from a single 5V to 10V and they are also capable of swinging to within 1V of either supply on the output. Because of their current-feedback topology, the EL5164, EL5165, and EL5364 do not have the normal gain-bandwidth product associated with voltage-feedback operational amplifiers. Instead, its -3dB bandwidth to remain relatively constant as closed-loop gain is increased. This combination of high bandwidth and low power, together with aggressive pricing make the EL5164, EL5165, and EL5364 ideal choices for many low-power/high-bandwidth applications such as portable, handheld, or battery-powered equipment. For varying bandwidth needs, consider the EL5166 and EL5167 with 1GHz on a 8.5mA supply current or the EL5162 and EL5163 with 300MHz on a 8.5mA supply current. Versions include single, dual, and triple amp packages with 5-pin SOT-23, 16-pin QSOP, and 8-pin or 16-pin SO outlines. Power Supply Bypassing and Printed Circuit Board Layout As with any high frequency device, good printed circuit board layout is necessary for optimum performance. Low impedance ground plane construction is essential. Surface mount components are recommended, but if leaded components are used, lead lengths should be as short as possible. The power supply pins must be well bypassed to reduce the risk of oscillation. The combination of a 4.7µF tantalum capacitor in parallel with a 0.01µF capacitor has been shown to work well when placed at each supply pin. For good AC performance, parasitic capacitance should be kept to a minimum, especially at the inverting input. (See the Capacitance at the Inverting Input section.) Even when ground plane construction is used, it should be removed from the area near the inverting input to minimize any stray capacitance at that node. Carbon or Metal-Film resistors are Pin Descriptions EL5164 (8-PIN SO) EL5164 (6-PIN SOT-23) EL5165 (5-PIN SOT-23) PIN NAME FUNCTION EQUIVALENT CIRCUIT 1, 5 NC Not connected 2 4 4 IN- Inverting input Circuit 1 3 3 3 IN+ Non-inverting input (See circuit 1) 4 2 2 VS- Negative supply 6 1 1 OUT Output Circuit 2 7 6 5 VS+ Positive supply 85 CE Chip enable, allowing the pin to float or applying a low logic level will enable the amplifier. Circuit 3 IN- IN+ VS+ VS- VS+ VS- OUT VS+ VS- CE EL5164, EL5165, EL5364 |
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