JFET Description 司 MOXTEK ultra low noise JFETs (MX JFETs) are used in a variety of applications including microanalysis, EDXRF, XRD. MOXT

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1 JFETs 司 先锋科技股份有限公司 Contents 司 JFET Description JFET Packages JFET Drawings JFET Characteristics Noise Graphs West 160 North P F

2 JFET Description 司 MOXTEK ultra low noise JFETs (MX JFETs) are used in a variety of applications including microanalysis, EDXRF, XRD. MOXTEK manufactures 3 and 4 pin N-channel JFETs. MX ultra low noise JFETs have a low leakage current, excellent transconductance (g m ) and input capacitance (C gs ). MOXTEK JFETs are available in Die and other packages (See JFET Packages section). Features for Optimal Detector Resolution Ultra low noise Free of generation recombination noise Excellent transconductance (g m ) and input capacitance (C gs ) Low leakage current Benefits High Low-Level Signal Amplification High Speed Switching Very high input impedance Excellent gain and very low distortion 先锋科技股份有限公司 Applications Products Summary 司 X-ray Detectors Si(Li) Detectors Si-PIN Detectors Silicon Drift Detectors (SDD) JFET V gs(off) typ(v) BV gss typ(v) g m typ(ms) I dss typ(ma) C gs typ(pf) V Test V sub =0V, ds =0V, V ds =4V, V I Conditions I d =1nA g =1µA, I d =5mA, ds =4V, I V sub =0V 0ºC d =5mA MX-11rc MX MX MX-16rc MX MX MX JFET Ordering Information Standard Package Includes: Contact Moxtek Contact Moxtek Contact Moxtek TO-7 with can Nailhead package Teflon package JFET mounted on a nailhead, TO-7, or Teflon Package Each JFET is tested and guaranteed Please contact MOXTEK for price and delivery information. Custom packaging is available. 45 West 160 North P F /31/008 Page

3 司 先锋科技股份有限公司 JFET Packages MX-11rc JFET Packages TO-7 PACKAGE WITH CAN (Light Reset Package available) NAILHEAD WITH FLYING LEADS TEFLON PACKAGE MX-16, MX-16rc, MX-30, MX-40, MX-10 JFET Packages TO-7 PACKAGE WITH CAN (Light Reset Package available) NAILHEAD WITH FLYING LEADS TEFLON PACKAGE 司 West 160 North P F /31/008 Page 3

4 司 先锋科技股份有限公司 JFET Drawings MX-11rc JFET MX-16, MX-16rc JFET substrate. Feedback capacitance = 0.5pF Feedback and substrate pads are custom and are not generally bonded. MX-0 JFET MX-30 JFET substrate. substrate. Feedback capacitance = 0.5pF Feedback and substrate pads are custom and are not generally bonded. MX-40 JFET MX-10 JFET substrate. 45 West 160 North P F 司 substrate. Substrate pad is custom and is not generally bonded. 10/31/008 Page 4

5 司 JFET Characteristics Static Characteristics Gate-Source Breakdown Voltage Symbol: V (BV)gss Unit: V JFET V ds =0V, I g =1mA, V sub =0V Gate-Source Cutoff Voltage Drain Saturation Current Reverse Leakage Current Symbol: V gs (off) Unit: V V sub =0V, I d =1nA Symbol: I dss Unit: ma, V sub =0V Symbol: I gss Unit: pa Test Conditions: V gs = -10V Temperature: 0 C Temperature: 0 C Temperature: 0 C Temperature: 0 C Typ Min Max Typ Min Max Typ Min Max Typ Min Max MX-11rc MX MX MX MX-16rc MX MX Dynamic Characteristics Transconductance Transconductance Gate-Source Capacitance Symbol: g m Unit: ms Symbol: g m Unit: ms Symbol: C gs Unit: pf JFET 先锋科技股份有限公司 司 Test Conditions ** : Test Conditions ** : Test Conditions ** : I d =5mA, V ds =4V, Temperature: 0 C Temperature: -100 C Temperature: 0 C Typ Min Max Typ Min Max Typ Min Max MX-11rc MX MX MX MX-16rc MX MX * V sub bias condition doesn t apply to the MX-11rc JFET ** V gs bias condition doesn t apply to the MX-11rc JFET 45 West 160 North P F /31/008 Page 5

6 Noise Characteristics JFET Equivalent Voltage Noise Temperature: 0 C Temperature: 0 C Temperature: 0 C Temperature: -100 C Temperature: -100 C Temperature: -100 C Frequency: 1 khz Frequency: 10 khz Frequency: 100 khz Frequency: 1 khz Frequency: 10 khz Frequency: 100 khz Typ Min Max Typ Min Max Typ Min Max Typ Min Max Typ Min Max Typ Min Max MX-11rc MX MX MX-16rc MX MX MX * V gs bias condition doesn t apply to the MX-11rc JFET 司 先锋科技股份有限公司 司 West 160 North P F /31/008 Page 6

7 司 Noise Graphs Noise Characteristics at 0 C 3.5 Equivalent Voltage Noise (nv/ Hz) MX-11rc MX-16 MX-16rc MX-0 MX-30 MX-40 MX-10 先锋科技股份有限公司 司 Frequency (khz) Noise Characteristics at -100 C 3.5 Equivalent Voltage Noise (nv/ Hz) MX-11rc MX-16 MX-16rc MX-0 MX-30 MX-40 MX Frequency (khz) 45 West 160 North P F /31/008 Page 7