■ Absolute maximum ratings over operating free-air temperature range Parameter Rating Unit Supply voltage, VCC *1 32 V Differential input voltage, VID *2 ±32 V Input voltage, VI (either input) -0.3 to 32 V Duration of output short circuit (one amplifier) to ground at (or below) TA = 25℃,VCC ≤ 15 V *3 Unlimited Package thermal impedance, θJA*4 76 ℃/W Operating virtual junction temperature, TJ 150 ℃ Storage temperature range, Tstg -65 to 150 ℃ Charged-Device Model ±2 kV *1 All voltage values (except differential voltages and VCC specified for the measurement of IOS) are with respect to the network GND. *2 Differential voltages are at IN+, with respect to IN-. *3 Short circuits from outputs to VCC can cause excessive heating and eventual destruction. *4 Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max)-TA)/θJA. Operating at the absolute maximum TJ of 150℃ can affect reliability. LM324 ■ Operating conditions, VCC=±15 V, TA=25℃ Parameter Symbol Testconditons Typ Unit Slew rate at unity gain SR RL = 1 MΩ, CL = 30 pF, VI =±10 V (see Figure 1) 0.5 V/μs Unity-gain bandwidth B1 RL = 1 MΩ, CL = 20 pF (see Figure 1) 1.2 MHz Equivalent input noise voltage Vn RS = 100Ω, VI = 0 V, f = 1 kHz (see Figure 2) 35 V O - + R L C L V I V CC+ V CC- Figure 1. Unity-Gain Amplifier V O - + 100 Ω V CC+ V CC- RS 900 Ω V I = 0 V Figure 2. Noise-Test Circuit http://www.luguang.cn mail:lge@luguang.cn