This high speed laser diode driver generates any programmable pulse shape with down to 500 ps step and 48 db dynamic range. Mar 17, 2020 in various embodiments, a high speed pin diode spiking driver circuit is provided that is capable of providing a radio frequency rf switching time of a pin diode that is about two orders of magnitude lower than the carrier lifetime of the pin diode e. Gc4200 series the ceramic packaged gc4200 series are high speed cathode base pin diodes made with high resistivity epitaxial silicon material. In my antenna switch, in order to avoid input overload of my receiver, a power limiter will be utilized. These control wires 2424n may be passed as a single multiple wire cable, or as individual wires, through the axial passageway within the winding of the autotransformer 10.
The ad87 highspeed differential amplifier, typically used for driving adcs, can also serve as a lowcost, lowpower pin diode driver. Pdf highspeed highvoltage pin diode driver researchgate. The pin diode drivers control the biasing of the pin diodes and thus a ects the speed of the switch. Several modi cations was made to the driver design. The 9829 is a driver featuring high speed and high voltage range suited for driving high power pin diode switches. When using noninverting input, connect bias pin 5 to inverting input pin 4. Impellimax pin diode drivers, linearizer hybrids, gaas mmic. This high speed laser diode driver can generate any programmable pulse shape with down to 500 picosecond and 48 db dynamic range. Pin diode drive circuits optimized for fast switching. Pin diode driver circuits are a pain to design and build. Anghel laboratories, 3 route 46 west, fairfield, new jersey 07006 usa received july 1988, accepted september. High speed analog cmos technology is used to achieve low power consumption at moderate speeds. Determine adequate speed of flyback diode for a relay.
The ad87 high speed differential amplifier, typically used for driving adcs, can also serve as a lowcost, lowpower pin diode driver. Design and performance of a high speed driver circuit for pin diode. While the device physics are complex, the result is a controllable switching action with a twist. Because of the complexity of designing a high speed current driver circuit, the fet switch typically has an advantage in switching speed as well. Api technologies offers a complete lineup of pin diode switch drivers with output current capability of 10 ma to 50 ma and switching speeds as fast as 6 ns. Higher output voltage and higher output current pin diode. It is capable of delivering peak currents in excess of one ampere at speeds up to. Dec 22, 2016 when such a laser driver and tosa are connected together, only one capacitor c2 is necessary on the high speed traces between the driver outputs and the tosa, eliminating the need for pullup and pulldown components at driver outputs and the laser anode and cathode nodes. Pin diode driver ccd clock driverbuffer highspeed level translator. Miller thayer school of engineering, dartmouth college and radiation oncology, dartmouthhitchcock medical center, hanover, new hampshire 03755 usa. Achieving typical switching times of 7 ns to 11 ns, including the propagation delays of the driver and the rf load, it features complementary outputs and is a versatile alternative to more expensive. A high speed circuit was fabricated and tested to drive each pin diode switch.
Mercury systems pin diode switch family spans the frequency range of 0. Keep the lines from the driver to the laser diode and back as short as possible every mm counts. Thin film metalization on ceramic substrates ensures low parasitic capacitance for fast switching, small size, and excellent reliability. Us4502025a high speed pin diode switched antenna coupler. Macom and its affiliates reserve the right to make changes to the products processs or information contained herein without notice. High speed laser diode driver with userdesign ns pulse. Together, we design and build the legacy impellimax line of drivers and a new line of mmic switch drivers that are small, fast and work well with a wide range of voltages. However, unlike the pn diode, the pin diode has an intrinsic layer sandwiched between its p and n layers. When using inverting input, connect bias pin 5 to noninverting input pin 6. If needed, the switching speed can be improved by consuming more quiescent power. Inputs are compatible with standard logic families. Diode speed only becomes important at high switching frequencies, such as dcdc converters and high frequency pwm of motors. The switch makes use of a novel pin diode driver circuit that achieves high switching speeds while keeping the power dissipation in the driver.
High speed silicon photodiodes standard products osi. Impellimax pin diode drivers, linearizer hybrids, gaas. High power handling capability and fast switching speed are con. Highspeed highvoltage pin diode driver ieee conference. High voltage drivers pin diode drivers, linearizer hybrids. A high power fourport transmitreceive switch was developed for an airborne vhf sar application. Features ultra high speed high power laser diode driver is designed to supply laser diode strings of multiple single emitters in series. Achieving typical switching times of 7 ns to 11 ns, including the propagation delays of the driver and the rf load, it features complementary outputs and is a versatile alternative to more expensive conventional drivers. The driver is built on a normally open phemt and controlled with ttl level signals. The back bias voltage can be selected to be any voltage between 20 v to 50 v. Each of the pin diode driver circuits 2222n provides a high voltage binary output signal on one of the control wires 2424n.
Jul 26, 2008 thank you for your reply in my news grouphow to design pin diode driver high voltage and high speed. A microwave pin diode is a semiconductor device that operates as a variable resistor at rf and microwave frequencies. Md1820 highspeed 4channel mosfet driver with noninverting. Overview description microsemi offers ceramic and surface mount packages options for its high speed pin diodes. Dsnxser nx series noninverting high speed pin diode drivers 28 kb rev 112498. These detectors are small active area detectors optimized at 800nm band and features fast rise time for high bandwidth applications up to 1. Place storagebypass capacitors very close to the supply and ground of the driver ic. The switch makes use of a novel pin diode driver circuit that achieves high switching speeds while keeping the power dissipation in the driver transistors low. Because of the complexity of designing a highspeed current driver circuit, the fet switch typically has an advantage in switching speed as well. Dsxfser xf series high speed xor mode control pin diode drivers 54 kb rev 21599.
Since you are protecting a relay, your switching frequencies are far too low for diode switching losses to be noticeable, let alone important. En33x273 this driver reference design is designed to operate with the skyworks series of high power spdt pin diode switches. They offer both high performance and integrated high speed driver controlled ttl or cmos signals. They offer both high performance and integrated high speed driver. Pin diode drivers introduction the dh0035dh0035c is a ttldtl compatible, dc coupled, high speed pin diode driver. The photodetectors exhibit high responsivity, wide bandwidth, low dark current and low capacitance at 3.
A pin diode is a current controlled device in contrast to a varactor diode which is a voltage controlled device. High speed moderate voltage drivers provide up to 30v back bias on diodes, but still can maintain 5 mhz repetition rates and high speed switching. The madr009150 switch driver is designed to work with macoms high power and high voltage pin diode switches. Driver circuits for high power pin diode switches the information in this chapter is presented as a guide for the rf switch switch driver interface. High speed pin diode driver circuit macom technology. Cn a bom design and performance of a high speed driver circuit for pin diode switches used in microwave hyperthermia t.
We utilize low parasitic capacitance for fast switching, small size, and excellent reliability. This article demonstrates how the dh0035 may be applied to driving pin diodes and comparable loads which. Every pin diode in a switching circuit has an accompanying pin diode driver or. High speed, high voltage, 1 a output drive amplifier data. Dsixser ix series inverting high speed pin diode drivers 79 kb rev 112498. Osi optoelectronics family of large active area and high speed silicon pin photodiodes possesses a large sensing area optimized for shorthaul optical data communication applications at 850nm. The fastest pin diode driver is able to switch two pin diodes with a carrier lifetime. Pin diodes for microwave switch designs application note an3021 rev. Driver circuit for high power pin diode switches introduction the skyworks high power pin diode switch driver circuit is a ttldtl compatible, dc coupled, high speed pin diode bias controller. External negative supply voltages may be as high as 18 volts.
Available in flat window or microlens window to18 can. Driver for high speed laser diode maxim integrated products. Dsxsser xs series xor mode control pin diode drivers 71 kb rev 112498. Standard diode drivers with buck converter require a load voltage for. Varactors diodes are design with thin epitaxial ilayers for a high q in the. References 1,2 provide a fuller treatment of this subject and can be used as a basis for rf switch switch driver interface designs. Its unique buckboost switching topology allows dcdc operation with load compliance voltage even exceeding the dc input voltage. When using noninverting input, connect bias pin 5 to inverting input pin. Design and performance of a high speed driver circuit for pin. Macoms madr007097000100 is a spdt driver used to interface between ttl logic signals and pin diode based microwave switches. In your reply, you mentioned that you also use pin diode clamps on the input to your receiver. Please contact impellimax to see how high voltage solutions can work for you.
When the pin diode is forward biased it allows rf energy to flow, and when reverse biased it blocks rf energy. This article discusses the design of high speed driver for pin diode microwave switches. The increase in speed over the former driver system is a factor of 5. It is capable of delivering peak currents in excess of one ampere at speeds up to 10 mhz. High speed drivers a universal pin diode driver with excellent noise immunity, very fast switching, 100 ma current spikes and available test points for increasing quiescent output current. Highspeed analog cmos technology is used to achieve low power consumption at moderate speeds.
1096 275 1265 1359 130 1174 897 1506 588 112 1534 478 541 671 609 1356 947 1085 898 1317 896 1258 1162 576 1371 604 643 921 647 628 649 800 475 295 683