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TS482IQT Arkusz danych(PDF) 2 Page - STMicroelectronics |
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TS482IQT Arkusz danych(HTML) 2 Page - STMicroelectronics |
2 / 24 page TS482 2/24 ABSOLUTE MAXIMUM RATINGS OPERATING CONDITIONS Symbol Parameter Value Unit VCC Supply voltage 1) 6V Vi Input Voltage -0.3 to VCC +0.3 V Toper Operating Free Air Temperature Range -40 to + 85 °C Tstg Storage Temperature -65 to +150 °C Tj Maximum Junction Temperature 150 °C Rthja Thermal Resistance Junction to Ambient SO8 MiniSO8 DFN8 175 215 70 °C/W Pd Power Dissipation 2) SO8 MiniSO8 DFN8 0.71 0.58 1.79 W ESD Human Body Model (pin to pin) 2 kV ESD Machine Model - 220pF - 240pF (pin to pin) 200 V Latch-up Latch-up Immunity (All pins) 200 mA Lead Temperature (soldering, 10sec) 250 °C Output Short-Circuit Duration see note 3) 1. All voltages values are measured with respect to the ground pin. 2. Pd has been calculated with Tamb = 25°C, Tjunction = 150°C. 3. Attention must be paid to continuous power dissipation. Exposure of the IC to a short circuit on one or two amplifiers simultaneously can cause exces- sive heating and the destruction of the device. Symbol Parameter Value Unit VCC Supply Voltage 2 to 5.5 V RL Load Resistor >= 16 Ω CL Load Capacitor RL = 16 to 100Ω RL > 100Ω 400 100 pF VICM Common Mode Input Voltage Range GND to VCC V RTHJA Thermal Resistance Junction to Ambient SO8 MiniSO8 DFN81) 150 190 41 °C/W 1. When mounted on a 4-layer PCB. Components Functional Description Rin Inverting input resistor which sets the closed loop gain in conjunction with Rfeed. This resistor also forms a high pass filter with Cin (fc = 1 / (2 x Pi x Rin x Cin)) Cin Input coupling capacitor which blocks the DC voltage at the amplifier input terminal Rfeed Feed back resistor which sets the closed loop gain in conjunction with Rin Cs Supply Bypass capacitor which provides power supply filtering Cb Bypass capacitor which provides half supply filtering Cout Output coupling capacitor which blocks the DC voltage at the load input terminal This capacitor also forms a high pass filter with RL (fc = 1 / (2 x Pi x RL x Cout)) Rpol These 2 resistors form a voltage divider which provide a DC biasing voltage (Vcc/2) for the 2 amplifiers. Av Closed loop gain = -Rfeed / Rin |
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