NJM2121 HIGH SPEED OPERATIONAL AMPLIFIER WITH SWITCH GENERAL DESCRIPTION PACKAGE OUTLINE The NJM2121 is a dual operational amplifier of 2-INPUT and 1-OUTPUT with analog switch. The NJM2121 can be used as analog switch under the condition of G =0dB, as Switch + Amp V in order that each gain (A or B) can be adjusted independently. Each amplifier of the NJM2121 has the same electrical characteristics as the NJM4560. NJM2121D NJM2121M The NJM2121 is suitable for Audio, Video, Electrical musical instrumentetc. FEATURES Analog Switch Function Operating Voltage ( 3V~18V ) Slew Rate ( 4V/s typ. ) Wide Unity Gain Bandwidth ( 14MHz typ. ) Package Outline DIP8,DMP8 Bipolar Technology PIN CONFIGURATION Top View PIN FUNCTION 1.SW.CONTROL 2.A +INPUT 3.A -INPUT - 4.V 5.OUTPUT 6.B INPUT 7.B +INPUT + 8.V EQUIVALENT CIRCUIT Ver.2011-03-16 - 1 - NJM2121 ABSOLUTE MAXIMUM RATINGS ( Ta=25C ) PARAMETER SYMBOL RATINGS UNIT + - Supply Voltage V /V 18 ( 36 ) V Differential Input Voltage V 30 V ID Input Voltage V 15 V IC Output Current I 50 mA O ( DIP8 ) 500 Power Dissipation P mW D ( DMP8 ) 300 Operating Temperature Range T -20~+75 C opr Storage Temperature Range T -40~+125 C stg ELECTRICAL CHARACTERISTICS + - ( V /V =15V,Ta=25C ) PARAMETER SYMBOLTEST CONDITION MIN. TYP. MAX. UNIT Operating Current I V SW ON - 2.3 6.0 mA CC IN SW OFF - 2.1 6.0 mA Input Offset Voltage V R =10k - 0.8 6.0 mV IO S Input Bias Current I - 0.2 1.0 A B Large Signal Voltage Gain A R =2k - 110 - dB V L Maximum Output Voltage Swing V R 10k 12 14 - V OM L Total Harmonic Distortion THD f=1kHz,V =5Vrms,G=20dB - 0.002 - % O V Supply Voltage Rejection Ratio SVR - 20 150 V/V Channel Separation CS f=1kHz - 82 - dB Unity Gain Bandwidth f G=0dB - 14 - MHz T V Slew Rate SR G =0dB,R =2k//100pF - 4 - V/s V L Equivalent Input Noise Voltage V R =1k,BW=10Hz~30kHz,Flat - 2.0 - Vrms NI S TEST CIRCUIT Ver.2011-03-16 - 2 -