NTE1223 Datasheet, PDF (1/2 Pages) NTE Electronics – Integrated Circuit Low Noise High Gain Pre−Amplifier Circuit For General Purpose Audio Pre−Amplifiers

NTE1223
Integrated Circuit
Low Noise High Gain Pre−Amplifier Circuit
For General Purpose Audio Pre−Amplifiers
Features:
D External initial stage emitter resistor which determines feedback voltage gain and assures bet-
ter temperature characteristics.
Absolute Maximum Ratings: (T_A = +25°C unless otherwise specified)
Supply Voltage, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20V
Supply Current, I_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mA
Power Dissipation (T_A ≤ 75°C), P_D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100mW
Operating Ambient Temperature Range, T_opr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20° to +75°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55° to +125°C
Electrical Characteristics: (V_CC = 9V, f = 1kHz, T_A = +25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Total Circuit Current
I_tot
− 1.3 2.3 mA
Closed Circuit Voltage Gain
G_vo V_i = 0.1mV
75 80 − dB
Output Voltage (AC)
V_o THD = 1%
1.5 2
−
V_rms
Total Harmonic Distortion
Input Resistance
Input Referred Noise Voltage
THD
R_i
V_ni
V_O= 0.3V
R_g = 2.2kΩ
− 0.07 0.2 %
− 130 −
kΩ
− 0.8 1.5 µV_rms