LOW-NOISE DUAL OPERATIONAL AMPLIFIER NJM3 GENERAL DESCRIPTION The NJM3 is a high performance dual low noise operational amplifier. Compared to the standard dual operational amplifiers, such as the NJM, it shows better noise performance, improved output drive capability, and considerably higher small-signal and power bandwidths. it is compensated internally for voltage follower circuit. This makes the device especially suitable for application in high quality and professional audio equipment, instrumentation, control circuits, and telephone channel amplifiers. If very low noise characteristic is of prime importance, it is recommended D-Rank type products(njm3dd/ld/md). These have specified maximum limits for equivalent input noise voltage. FEATURES Operating Voltage Small Signal Bandwidth Output Drive Capability Input Noise Voltage Power Bandwidth Slew Rate Bipolar Technology Package Outline ±3V~±V MHz typ. Ω,Vrms typ. nv/ Hz typ. khz typ. V/µs typ. DIP,DMP,SIP PACKAGE OUTLINE NJM3D (DIP) NJM3M (DMP) NJM3L (SIP) PIN CONFIGURATION 3 Top View A B 7 DIP, DMP Package Top View 3 7 SIP Package PIN FUNCTION.A OUTPUT.A -INPUT 3.A +INPUT.V -.B +INPUT.B -INPUT 7.B OUTPUT.V + EQUIVALENT CIRCUIT ( / Shown ) Ver.-- - -
NJM3 ABSOLUTE MAXIMUM RATINGS ( Ta= C ) PARAMETER SYMBOL RATING UNIT Supply Voltage V + /V - ± V Common Mode Input Voltage Range V ICM V + /V - V Differential Input Voltage Range V ID ±. V Power Dissipation P D DIP : DMP : (Note) mw SIP : Operating Temperature Range Topr -~+7 C Storage Temperature Range Tstg -~+ C (Note) On the cermic PCB (xx.3mm) RECOMMENDED OPERATING VOLTAGE (Ta= C) PARAMETER SYMBOL RATING UNIT Supply Voltage V + /V - ±3~± V ELECTRICAL CHARACTERISTICS ( V + /V - =±V,Ta= C, unless otherwise noted.) DC ELECTRICAL CHARACTERISTICS Input Offset Voltage V IO R S kω -. mv Input Offset Current I IO - na Input Bias Current I B - na Supply Current I CC R L = - 9 ma Common Mode Input Voltage Range V ICM ± ± 3 - V Common Mode Rejection Ratio CMR R S kω 7 - db Supply Voltage Rejection Ratio SVR R S kω - db Voltage Gain A V R L kω, V O =±V - db Voltage Gain A V R L Ω, V O =±V 3. 9 - db Maximum Output Voltage V OM R L Ω ± ± 3 - V Maximum Output Voltage V OM R L Ω, V + /V - =±V ± ± - V Input Resistance R IN 3 3 - kω Short Circuit Output Current I OS - 3 - ma AC ELECTRICAL CHARACTERISTICS Output Resistance R O A V =3dB,f=kHz, R L =Ω -.3 - Ω Overshoot A V =, V IN =mv PP, R L =pf, R L =Ω - - % Voltage Gain A V f=khz - 7 - db Slew Rate SR - - V/µs Gain Bandwidth Product GB C L =pf, R L =Ω - - MHz Power Bandwidth W PG V O =±V, R L =Ω, V + /V - =±V - - khz W PG V O =±V - - khz n e n O f O =khz - - nv/ Hz e f =3Hz - - nv/ Hz Equivalent Input Noise Current i n f O =3Hz -.7 - pa/ Hz i n f O =khz -.7 - pa/ Hz Channel Separation CS f=khz, R S =kω - - db ELECTRICAL CHARACTERISTICS (D-ranktype(Note), V + /V - =±V, Ta= C, unless otherwise noted.) V NI RIAA, R S =.kω - -. µvrms (Note)D-rank type is a selected product. - - Ver.--
NJM3 TYPICAL CHARACTERISTICS Gain/Phase vs. Frequency Ta=ºC Maximum Output Voltage vs. Load Resistance V + /V - =±V, Ta=ºC Voltage Gain [db] 3 Gain Phase - - Phase [deg] - - +V OM -V OM - k k M M - k k Load Resistance [Ω] Maximum Output Voltage Swing [V PP ] 3 3 Maximum Output Voltage Swing vs. Frequency V + /V - =±V, Ta=ºC k k M [µvrms]. Voltage Noise vs. Source Resistance V + /V - =±V, Ta=ºC Flat khz LPF JIS A Rs k Weighting k k Source Resistance [Ω] Voltage Noise vs. Frequency V + /V - =±V, R S =Ω, A V =db. THD vs. Output Voltage V + /V - =±V, R L =kω, G V =db, Ta=ºC [nv/ Hz] 9 7 3 Ta=ºC Ta=ºC Total Harmonic Distortion THD [%]. f=khz f=khz f=hz k k k. Output Voltage [Vrms] Ver.-- - 3 -
NJM3 TYPICAL CHARACTERISTICS Supply Current vs. Supply Voltage Ta=ºC Supply Current vs. Temperature V + /V - =±V Supply Current [ma] Supply Current [ma] ± ± ± ± Supply Voltage V + /V - [V] - - 7 Input Offset Voltage vs. Temperature V + /V - =±V Input Bias Current vs. Temperature V + /V - =±V. 3 Input Offset Voltage [mv]. -. - Input Bias Current [na] 3 -. - - - 7 - - 7 - - - - - Maximum Output Voltage vs. Supply Voltage R L =kω, Ta=ºC R L =kω R L =Ω +VOM -VOM ± ± ± ± Supply Voltage V + /V - [V] - - - Maximum Output Voltage vs. Temperature V + /V - =±V, R L =Ω - - 7 - - Ver.--
NJM3 TEST CIRCUIT Noise Voltage (RIAA) measurement circuit +V -V 3.3µ Rs.k µ µ.7µ.µ db Amp 3kHz LPF Vout k 3k 33k k 7µ.µ.µ NOTICE When used in voltage follower circuit, put a current limit resistor into non-inverting input terminal in order to avoid inside input diode destruction when the power supply is turned on. ( ref.fig. ) INPUT k OUTPUT (Fig.) [CAUTION] The specifications on this databook are only given for information, without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. Ver.-- - -