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| NJM2122 ULTRA LOW NOISE DUAL OPERATIONAL AMPLIFIER GENERAL DESCRIPTION The NJM2122 is an ultra low noise dual operational amplifier. The features of ultra low noise, low operating voltage, and low saturation voltage are suitable for microphone amplifier of digital audio items such as portable MD,DAT,and others. FEATURES Operating Voltage Ultra Low Noise Voltage Low Saturation Output Voltage Bipolar Technology Package Outline PIN CONFIGURATION PIN FUNCTION 1.A OUTPUT 2.A -INPUT 3.A +INPUT 4.V - PACKAGE OUTLINE ( 2.0V~7.0V ) ( 1.5nV/Hz typ.@ f=1kHz ) ( 0.3V typ. ) DIP8,DMP8 NJM2122D NJM2122M 5.B +INPUT 6.B -INPUT 7.B OUTPUT 8.V NJM2122D NJM2122M + EQUIVALENT CIRCUIT ( 1/2 Shown ) Ver.2003-03-17 -1- NJM2122 ABSOLUTE MAXIMUM RATINGS ( Ta=25C ) PARAMETER Supply Voltage Differential Input Voltage Input Voltage Power Dissipation Operating Temperature Range Storage Temperature Range SYMBOL +V /V VID VIC PD Topr Tstg RATINGS 10 0.5 10 ( note ) ( DIP8 ) 500 ( DMP8 ) 300 -20~+75 -40~+125 UNIT V V V mW C C ( note ) When the supply voltage is less than 10V,the absolute maximum input voltage is equal to the supply voltage. ELECTRICAL CHARACTERISTICS PARAMETER Operating Voltage 1 Operating Voltage 2 Operating Current Input Offset Voltage Input Offset Current Input Bias Current Large Signal Voltage Gain Input Common Mode Voltage Range Common Mode Rejection Ratio Supply Voltage Rejection Ratio Maximum Output Voltage Slew Rate Gain Bandwidth Product Equivalent Input Noise Voltage 1 Equivalent Input Noise Voltage 2 Channel Separation Total Harmonic Distortion SYMBOL Vope1 Vope2 ICC VIO IIO IB AV VICM CMR SVR VOM SR GB en1 en2 CS THD TEST CONDITION DIP Package DMP Package VIN=0V,RL= MIN. 2.0 2.0 80 0.7 60 60 2.0 TYP. 7.0 1.0 0.45 3.6 100 1.0 74 80 2.2 2.4 12 1.5 0.56 90 0.003 ( V+=5V,Ta=25C ) MAX. 10.0 7.0 9.5 6.0 1.50 8.0 0.75 UNIT V V mA mV A A dB V dB dB V V/s MHz nVHz Vrms dB % RL10k RL2.5k GV=20dB,VIN= 0.1V RS=10,f=1kHz f=1kHz VO=1Vrms,f=1kHz GV=20dB,RL=2.5k ( note ) Between 30 to 50dB voltage gain is recommended. In case of voltage gain less than 30dB,phase compensation by external circuit is required. The voltage follower circuit must not be used. DMP package should be used in operating voltage less than 7V,because of the PD limitation. -2- Ver.2003-03-17 NJM2122 TYPICAL CHARACTERISTICS Ver.2003-03-17 -3- NJM2122 TYPICAL CHARACTERISTICS -4- Ver.2003-03-17 NJM2122 TYPICAL CHARACTERISTICS [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.2003-03-17 -5- |
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