NTE824 Integrated Circuit Low Noise Dual Preamplifier Description: The NTE824 is a dual preamplifier for the amplification of low level signals in applications requiring optimum noise performance. Each of the two amplifiers is completely independent, with an internal power supply decouplerregulator, providing 110dB supply rejection and 60dB channel separation. Other outstanding features include high gain (104dB), large output voltage swing (V 2V)pp, and CC wide power bandwidth (75kHz, 20V ). The device operates from a single supply across the wide pp range of 9V to 30V. The amplifiers are internally compensated for gains greater than 10. Features: Low Noise: 1.0 V Total Input Noise High Gain: 104dB Open Loop Single Supply Operation Wide Supply Range: 9V to 30V Power Supply Rejection: 110dB Large Output Voltage Swing (V 2V)pp CC Wide Bandwidth 15MHz Unity Gain Power Bandwidth 75kHz, 20V pp Internally Compensated Short Circuit Protected Absolute Maximum Ratings: Supply Voltage, V . +30V CC Power Dissipation (Note 1), P 660mW D Operating Temperature Range, T . 0 to +70C opr Storage Temperature Range, T 65 to +150C stg Lead Temperature (During Soldering, 10sec), T +300C L Note 1 For operation in ambient temperatures above 25C, the device must be derated based on a 150C maximum junction temperature and a thermal resistance of 187C/W junction to ambient.Electrical Characteristics: (T = +25C, V = 14V, unless otherwise specified) A CC Parameter Test Conditions Min Typ Max Unit Voltage Gain Open Loop, f = 100Hz 160,000 Supply Current V = 9V to 30V, R = 10 mA CC L Input Resistance 50 100 k Positive Input Negative Input 200 k Input Current, Negative Input 0.5 3.1 A Output Resistance Open Loop 150 Output Current Source 8 mA Sink 2 mA Output Voltage Swing PeaktoPeak V 2 V CC Unity Gain Bandwidth 15 MHz Large Signal Frequency Response 20V (V > 24V), THD 1% 75 kHz PP CC Maximum Input Voltage Linear Operation 300 mV rms Supply Rejection Ratio Input Referred f = 1kHz 110 dB Channel Separation f = 1kHz 40 60 dB Total Harmonic Distortion 60dB Gain, f = 1kHz 0.1 0.5 % Total Equivalent Input Noise (Flat Gain Circuit) 10 to 10,000Hz 1.0 1.2 V rms Pin Connection Diagram (+) Input 1 1 8 (+) Input 2 () Input 1 2 7 () Input 2 GND 3 6 V CC Output 1 4 5 Output 2 85 .260 (6.6) 14 .390 (9.9) .300 Max (7.62) .155 (3.93) .100 (2.54) .145 (3.68) .300 (7.62)
