N//7/JANTX/JANTXV Monolithic N-Channel JFET Duals Product Summary Part Number V GS(off) (V) V (BR)GSS Min (V) g fs Min (ms) I G Max (pa) V GS V GS Max (mv) N. to.. N. to.. N7. to.. Features Benefits Applications Monolithic Design High Slew Rate Low Offset/Drift Voltage Low Gate Leakage: pa Low Noise High CMRR: db Tight Differential Match vs. Current Improved Op Amp Speed, Settling Time Accuracy Minimum Input Error/Trimming Requirement Insignificant Signal Loss/Error Voltage High System Sensitivity Minimum Error with Large Input Signal Wideband Differential Amps High-Speed, Temp-Compensated, Single-Ended Input Amps High-Speed Comparators Impedance Converters Description The N//7JANTX/JANTXV are monolithic dual n-channel JFETs designed to provide high input impedance (I G < pa) for general-purpose differential amplifiers. The N features minimum system error and calibration (-mv offset maximum). The TO-7 package is available with full military processing (see Military Information). TO-7 S G D D G S Absolute Maximum Ratings Top View Gate-Drain, Voltage........................ V Gate Current........................................ ma Lead Temperature ( / from case for sec.)............. C Storage Temperature........................... to C Operating Junction Temperature.................. to C Power Dissipation : Per Side a................. mw Total b.................... mw Notes a. Derate mw/ C above C b. Derate mw/ C above C Updates to this data sheet may be obtained via facsimile by calling FaxBack, --97-. Please request FaxBack document #7. P-7 Rev. B, -Jul-9
N//7/JANTX/JANTXV Specifications a Static Limits N N N7 Parameter Symbol Test Conditions Typ b Min Max Min Max Min Max Unit Breakdown Voltage Cutoff Voltage V (BR)GSS I G = A, V DS = V 7 V GS(off) V DS = V, =. na...... Saturation Drain Current c SS V DS = V, V GS = V... ma V GS = V, V DS = V pa Gate Reverse Current I GSS T A = C na Gate Operating Current I G V DG = V, = A pa Forward Voltage Dynamic V GS(F) I G = ma, V DS = V.7 V Common-Source Forward Transconductance c g fs V DS = V, VGS = V Common-Source f = khz Output Conductance c g os Common-Source Input Capacitance Common-Source Reverse Transfer Capacitance Equivalent Input Noise Voltage C iss C rss e n V DS = V, VGS = V f = MHz V DS = V, = A f = Hz V....... ms S.. Noise Figure NF R G = M.. db Matching pf nv Hz Differential Voltage V DG = V, = A V DG = V, = A mv Voltage Differential Change with Temperature V GS V GS T V DG = V, = A T A = to C V/ C Saturation Drain Current Ratio d V DS = V, V GS = V.9.9.9.9 Transconductance Ratio d V DS = V, = A f = khz.99.97.9.9 Differential Output Conductance V DG = V, V GS = V f = khz. S Differential Gate Current V DG = V, = A T A = C na Notes a. T A = C unless otherwise noted. NQP b. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing. c. Pulse test: PW s duty cycle %. d. Assumes smaller value in the numerator. P-7 Rev. B, -Jul-9
N//7/JANTX/JANTXV Typical Characteristics SS Saturation Drain Current (ma) Drain Current and Transconductance vs. Cutoff Voltage g fs SS SS @ V DS = V, V GS = V g fs @ V DG = V, V GS = V f = khz V GS(off) Cutoff Voltage (V).... gfs Forward Transconductance (ms) Gate Leakage I G na na na pa pa pa. pa T A = C Gate Leakage Current I GSS @ C T A = C I G @ = A A A I GSS @ _C V DG Drain-Gate Voltage (V) A V GS(off) = V V GS(off) = V V GS = V. V V GS = V. V. V. V. V. V. V. V.9 V. V. V. V. V. V. V V GS(off) = V. V GS(off) = V V GS = V. V... V GS = V. V. V. V. V. V.... V.9 V. V. V. V.. V. V.. V. V. V........ P-7 Rev. B, -Jul-9
N//7/JANTX/JANTXV Typical Characteristics (Cont d) Transfer Characteristics V GS(off) = V V DS = V T A = C C C (mv) V GS V GS Differential Voltage V DG = V T A = C N7 N....... V GS Voltage (V) V GS V GS ( V/ C ) t Voltage Differential with Temperature V DG = V V T A = to C DG CMRR = log T A = to C V GS V GS N7 N CMRR (db) 9 Common Mode Rejection Ratio V DG = V V.... Circuit Voltage Gain k On-Resistance A V Voltage Gain. V GS(off) = V A V g fs R L R L g os Assume V DD = V, V DS = V R L V V GS(off) = V. rds(on) Drain-Source On-Resistance ( ) V GS(off) = V V GS(off) = V.. P-7 Rev. B, -Jul-9
N//7/JANTX/JANTXV Typical Characteristics (Cont d) Input Capacitance (pf) Ciss Common-Source Input Capacitance vs. Voltage f = MHz V DS = V V V Reverse Feedback Capacitance (pf) Crss Common-Source Reverse Feedback Capacitance vs. Voltage f = MHz V DS = V V V V GS Voltage (V) V GS Voltage (V) gfs Forward Transconductance (ms) en Noise Voltage ( nv / Hz )..... Equivalent Input Noise Voltage vs. Frequency @ A V GS = V k k k f Frequency (Hz) V DS = V Common-Source Forward Transconductance V GS(off) = V C C T A = C.. V DS = V f = khz rds(on) Drain-Source On-Resistance ( ) g Output Conductance ( S)..... k Output Conductance V GS(off) = V C T A = C C.. On-Resistance and Output Conductance vs. Cutoff Voltage r DS r DS @ = A, V GS = V g os @ V DS = V, V GS = V, f = khz g os V DS = V f = khz V GS(off) Cutoff Voltage (V) g Output Conductance ( S) P-7 Rev. B, -Jul-9