NTE1185 Integrated Circuit Audio PreAmp Features: D Wide Range of Operating Supply Voltage D High Gain, High Output Power D Low Distortion and Noise D Excellent Hum Rejection D Extremely High Resistance to Damage from Short Circuit of a Load Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Supply Voltage, VCC1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27V Supply Voltage (Note 1), VCC2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V Supply Current, ICC(peak) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5A Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.8W Operating Temperature Range (Note 1), Topt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20° to +75°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40° to +150°C Note 1. 100 x 100 x 1mm Al heat sink. Electrical Characteristics: (TA = +25°C, VCC = 18V, f = 1kHz, RL = 8Ω, AV = 52dB unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit Supply Current ICC V1 = 0 25 35 45 mA Output Power PO THD = 10% 3.0 3.5 − W Voltage Gain AV PO = 0.5W 49 − 56 dB Output Current IOUT VCC = 12V − 2.5 − mA Total Harmonic Disorder THD PO = 0.5W 0.65 1.8 − % − 20 − kΩ Input Resistance Rin Noise Level NL RG = 0Ω − 0.36 0.80 mVrms Voltage Switch ON VON RG = 0Ω, VCC OFF − ON − 0.4 − Vp−p Voltage Switch OFF VOFF RG = 0Ω, VCC ON − OFF − 0.1 − Vp−p Pin Connection Diagram (Front View) 10 Feedback 9 Bypass 8 GND 7 Ripple Bypass 6 Input 5 Compensation Cap 4 Compensation Cap 3 Bypass 2 VCC 1 Output .985 (25.0) .532 (13.5) .158 (4.0) .886 (22.5) .160 (4.0) Dia (3 Holes) .729 (18.5) .394 (10.0) 1 10 .413 (10.5) .100 (2.54) .900 (22.8) 1.040 (26.4)