Low Leakage Pico Amp Diodes CORPORATION PAD1 / PAD2 / PAD5 / PAD10 / PAD20 / PAD50 DESCRIPTION FEATURES • Low Leakage . . . . . . . . . . . . . . . . . . . . . . . . . 1 pA (PAD1) Breakdown Range • High . . . . . . . . . . . . . . . . . . . -45 V min - 120 V max (PAD1, 2, 5) Capacitance . . . . . . . . . . . . . . . . . 0.8 pf (PAD1, 2, 5) • Low . . . . . . . . . . . . . . . . . . . . . . . . . 2.0 pf (PAD10, 20, 50, 100) Calogic’s series of Pico Amp Diodes are an excellent choice for protection devices where ultra low leakage is critical and must be at a minimal measurement. These devices have a wide operating voltage range and are low capacitance for high speed switching requirements. Housed in a hermetic TO-18 package the product line is also available in chip form for hybrid uses. APPLICATIONS ORDERING INFORMATION . . . . . . . . . . . . . . . . . . . . . . -35V min (PAD10, 20, 50, 100) • High Impedance Protection Devices Diode Switching • Fast • Clipping Circuits Part Package PAD1-100 Hermetic TO-18 XPAD1-100 Sorted Chips in Carriers PIN CONFIGURATION ANODE CASE (CLIPPED) CATHODE BOTTOM VIEW 5007 SCHEMATIC DIAGRAM ANODE A C CATHODE Temperature Range -55oC to +150oC -55oC to +150oC PAD1 / PAD2 / PAD5 / PAD10 / PAD20 / PAD50 CORPORATION ABSOLUTE MAXIMUM RATINGS (25oC) Forward Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Total Device Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 mW Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55oC 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 PAD1 -2 PAD2 -5 IR BVR Reverse Current PAD5 -10 Breakdown Voltage (Reverse) -45 Forward Voltage Drop VR = -20 V PAD10 -20 PAD20 -50 PAD50 -100 PAD100 -120 PAD1, 2, 5 V -35 VF pA 0.8 1.5 IR = -1µA PAD10, 20, 50, 100 IF = 5 mA PAD1, 2, 5, 10, 20, 50, 100 DYNAMIC CR 0.8 Capacitance pF VR = -5 V, f = 1 MHz 2 PAD10, 20, 50, 100 IR < 1 pA PAD10 D2 D3 D4 +15V +V PAD1 _ D1 PAD1, 2, 5 -V + PAD1 J210 1 J110 + e in -15V VOUT C CONTROL SIGNAL APPLICATION Operational Amplifier Protection. Input Differential Voltage limited to 0.8 V (typ) by PADS D1 and D2 Common mode input voltage limited by PADS D3 and D4 to ±15 V. Typical sample and hold circuit with clipping. PAD diodes reduce offset voltages fed capacitively from the FET switch gate.