Dual Pico Amp Diodes LLC DPAD1 / DPAD2 / DPAD5 / DPAD10 / DPAD20 / DPAD50 / DPAD100 SSTDPAD5 / SSTDPAD10 / SSTDPAD20 / SSTDPAD50 / SSTDPAD100 FEATURES DESCRIPTION • High OFF Isolation. . . . . . . . . . . . . . . . . 1 pA max DPAD1 Isolation between diodes. . . . . . Typical 20 fA • Excellent • Matched Capacitance Calogic’s ultra low leakage dual pico amp diodes out perform conventional diodes for applications where reverse current (leakage) is critical and must be kept at a minimum. The devices have very low capacitance and are also fast switching. Housed in a compact dual hermetic package and a plastic surface mount SO-8 this product is also available in chip form for hybrid uses. APPLICATIONS • Op Amp Protection Devices • Diode Switching • High Impedance Protection ORDERING INFORMATION Part Package Temperature Range DPAD1 DPAD2/50 SSTDPAD5/100 XDPAD5/100 Hermetic TO-78 Hermetic TO-71 Plastic SO-8 Sorted Chips in Carriers -55 to +150oC -55 to +150oC -55 to +150oC -55 to +150oC PIN CONFIGURATION TO-71 (MODIFIED) (PINS 2 AND 6 REMOVED) N/C TO-78 (MODIFIED) (DPAD1 ONLY) A2 C2 C2 C1 C1 A1 N/C A 1 C2 A2 C C1 A2 C2 A1 C2 C1 CASE C 3 4 A2 A1 A2 A1 4 1 SCHEMATIC DIAGRAM C2 2 3 2 CJ1, CJ2, CJ4 SO-8 5 1 C1 C1 BOTTOM VIEW (ALTERNATE) BOTTOM VIEW A C C A CALOGIC LLC, 237 WHITNEY PLACE,FREMONT, CA 94539, 510-656-2900 PHONE, 510-651-1076 FAX DS035 REV A DPAD1 / DPAD2 / DPAD5 / DPAD10 / DPAD20 / DPAD50 / DPAD100 SSTDPAD5 / SSTDPAD10 / SSTDPAD20 / SSTDPAD50 / SSTDPAD100 LLC ABSOLUTE MAXIMUM RATINGS (25oC) Forward Gate Current, Each Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Total Device Dissipation @ TA = 25oC Derate 4.0 mW/ oC to 125oC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400 mW Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +125oC Lead Temperature (1/16" from case for 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300oC ELECTRICAL CHARACTERISTICS (25oC unless otherwise noted) SYMBOL CHARACTERISTICS MIN TYP MAX UNIT TEST CONDITIONS STATIC -1 DPAD1 -2 DPAD2 -5 IR Reverse Current -10 -45 BVR DPAD10 DPAD20 -50 DPAD50 -100 DPAD100 -120 DPAD1, 2, 5 Breakdown Voltage (Reverse) Forward Voltage Drop VR = -20 V -20 V -35 VF DPAD5 pA 0.8 1.5 IR = -1µA DPAD10, 20, 50, 100 IF = 5 mA DPAD1, 2, 5, 10, 20, 50, 100 DYNAMIC 0.8 CR Capacitance DPAD1, 2, 5 pF VR = -5 V, f = 1 MHz 2.0 | CR1 - CR2 | Differential Capacitance 0.1 0.2 DPAD10, 20, 50, 100 pF IR < 1 pA DPAD10 _ D1 D2 +15V +V DPAD1 DPAD1, 2, 5, 10, 20, 50, 100 -V + DPAD1 J210 1 + D3 VR1 = VR2 = -5 V, f = 1 MHz J110 e in D4 -15V VOUT C CONTROL SIGNAL APPLICATION Operational Amplifier Protection. Input Differential Voltage limited to 0.8 V (typ) by DPADS D1 and D2 Common mode input voltage limited by DPADS D3 and D4 to ±15V. Typical sample and hold circuit with clipping, DPAD diodes reduce offset voltages fed capacitively from the FET switch gate. CALOGIC LLC, 237 WHITNEY PLACE, FREMONT, CA 94539, 510-656-2900 PHONE, 510-651-1076 FAX DS035 REV A