MA4AGSW8-1
MA4AGSW8-1 is AlGaAs SP8T PIN Diode Series Switch manufactured by Tyco Electronics.
Features n n n n n n
MA4AGSW8-1 Layout
Specified Performance : 50 MHz to 40 GHz Operational performance: 50 MHz to 50 GHz 2.0 d B Typical Insertion Loss at 40 GHz 30 d B Typical Isolation at 40 GHz thru 3 Diodes 22 d B Typical Isolation at 40 GHz thru 2 Diodes Low Current sumption : 10 m A for low loss state 0 Volts for Isolation state n M/A-’s unique patent pending Al Ga As hetero-junction anode technology n Silicon Nitride Passivation n BCB Impact Protection
Description
M/A-’s MA4AGSW8-1 is an Aluminum-Gallium- Arsenide (Al Ga As) anode enhanced, SP8T PIN diode Series Switch. Operation is acplished with 10 m A applied to the low loss port and 0 V for the isolated ports. M/A-’s Al Ga As process utilizes a patent pending hetero-junction technology which produces lower insertion loss than conventional Ga As devices. These devices are fabricated on an OMCVD epitaxial wafer using a process designed for high device uniformity and extremely low parasitics. The diodes exhibit low series resistance, ( 3 Ω ) , low capacitance ( 20 f F ) , and fast switching speed ( 20 n S ). The MA4AGSW8-1 device is fully passivated with silicon nitride, and has an additional layer of a polyamide for impact protection. This protective coating prevents damage to the junction and the anode air bridges during assembly and test. RF to DC bias networks are required. This allows the MA4AGSW8-1 device to be optimized for a particular operating band.
Absolute Maximum Ratings1 @ TA = +25 °C (Unless otherwise specified)
Parameter Operating Temperature Storage Temperature Incident C.W. RF Power Reverse Voltage Bias Current Maximum Rating -55 °C to +125 °C -65 °C to +150 °C + 23 d Bm C. W. 25 V +/- 30 m A
Applications
The low capacitance of the PIN diodes makes this device ideal for use in microwave multi-throw switch designs. The low series resistance of the diodes reduces the insertion loss of the devices at microwave/millimeter-wave frequencies. These Al Ga As PIN switches are used as switching arrays on radar...