NTE778S Integrated Circuit Dual Operational Amplifier Description: The NTE778S is an integrated circuit designed as a low noise preamplifier in audio equipment and a general purpose operational amplifier in other electronic equipment. Two low noise operational am- plifier circuits displaying internal phasecompensated high gain and low distortion are contained in a 8pin SIP for applications over a wide range as a generalpurpose dual amplifier in general elec- tronic equipment. The device can also be used as a single power type and amplifier in portable equip- ment. It is also suitable as a headphone amplifier because of its high load current. Features: High gain, Low Distortion G = 110dB, THE = 0.0015% (typ.) VO High Slew Rate, High f T SR = 3.0V/s, f = 7MHz (typ.) T Low Noise (R = 1k) S FLAT, V = 2V (typ.) NI rms RIAA, V = 1V (typ.) NI rms Operation with Low Supply Voltage V 4V (2V) CC High Load Current, High Current Dissipation I = 50mA, P = 800mW LP D Recommended Operating Conditions: Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 to 16V Rated Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Absolute Maximum Ratings: (T = +25C unless otherwise specified) A Supply Voltage, V , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V CC Load Current, I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50mA LP Differential Input Voltage, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30V id Common Input Voltage, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V ic Power Dissipation, P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 800mW D Thermal Dirating (T 25 C), K . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8mW/C A Ambient Temperature Range, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 to +75C opr Storage Temperature Range, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 to +125C stgElectrical Characteristics: (T = +25 , V = +15V, unless otherwise specified) A CC Parameter Symbol Test Conditions Min Typ Max Unit Circuit Current I V = 0 3.0 6.0 mA CC in Input Offset Voltage V R 10k 0.5 6.0 mV IO S Input Offset Current I 5 200 nA IO Input Bias Current I 500 nA IB Input Resistance R 0.3 5 M in Open Loop Voltage Gain G R 2k, V = 10V 86 110 dB VO L O Maximum Output Voltage V R 10k 12 14 V L OM R 2k 10 13 V L Common Input Voltage Range V 12 14 V CM Common Mode Rejection Ratio CMRR R 10k 70 90 dB S Supply Voltage SVRR R 10k 30 150 V/V S Power Dissipation P 90 180 mW d Slew Rate SR G = 0dB, R 2k 3.0 V/s V L Gain Bandwidth Product f 7 MHz T Input Referred Noise Voltage V R = 1k, BW:1Hz to 30Hz 2.0 V NL S rms Pin Connection Diagram 8 V (+) 7 Output 2 6 Invert Input 2 5 Non Invert Input 2 4 V () 3 Non Invert Input 1 2 Invert Input 1 1 Output 1 .768 (19.52) Max .118 (3.0) Max .264 (6.72) Max 18 .165 (4.2) Min .100 (2.54) Typ .700 (17.78)