NTE1135 Integrated Circuit High Gain Audio Preamp Features: D Power Supply with Wide Working Voltage Range D High Open–Loop Gain D Extremely Low Distortion D Low Noise D High Input Impedance and Low Output Impedance D Low Current Dissipation Applications: D Car Stereos D Tape Recorders Absolute Maximum Ratings: (TA = +25°C unles otherwise specified) Power Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20V Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.0mW/°C Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –25° to +75°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C Electrical Characteristics: (TA = +25°C, VCC = 12V unles otherwise specified) Parameter Quiescent Current Symbol Test Conditions IQ Min Typ Max Unit 0.9 1.5 2.3 mA Open Loop Voltage Gain GVO VIN = –80dBm, f = 1kHz 70 79 – dB Maximum Output Voltage VOM f = 1kHz, THD = 1% 2.0 2.6 – V Total Harmonic Distortion THD f = 1kHz, VOUT = 0.5Vrms – 0.06 0.15 % Output Noise Voltage VNO BW: 30Hz to 20kHz – 60 100 µVrms Input Resistance RIN – 120 – kΩ ROUT – 5 – Ω Output Resistance Pin Connection Diagram (Front View) 7 VCC 6 Output 5 Bypass 4 GND 3 Feedback 2 Input st 1 1ndStage Collector/ 2 Stage Base .126 (3.2) Max .689 (17.5) Max .245 (6.2) Max .197 (5.0) 1 7 .190 (4.8) .099 (2.5) .590 (15.0)