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MAX3325 Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX3325 Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 12 page 3V Dual RS-232 Transceiver with LCD Supply and Contrast Controller _______________________________________________________________________________________ 3 ELECTRICAL CHARACTERISTICS (continued) (VDD = +3.0V to +3.6V, VL = +3.3V, circuit and components of Figure 1, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VDD = +3.3V, TA = +25°C.) CONDITIONS UNITS MIN TYP MAX PARAMETER LCD Line Regulation 3V < VDD < 3.6V, VLCD = -4.0V 10 mV LCD Adjustment Range Load = -3mA -5 +2 V Output Voltage RREF+ = 10kΩ 1.16 1.21 1.26 V Load Regulation Load = 12µA to 62µA (sourcing current) 4 mV Short-Circuit Current 5 mA Output Voltage No load -1.14 -1.21 -1.28 V Load Regulation Load = 0 to 50µA (sinking current) 35 mV Short-Circuit Current 0.125 mA Logic Threshold High 2 V Logic Threshold Low 0.8 V Input Current VIN = GND or VDD -1 1 µA Output Voltage Low ISINK = 1.6mA 0.4 V Output Voltage High ISOURCE = 1.0mA 0.8 · VL V Input Voltage Range -25 +25 V Input Threshold Low TA = +25°C, VDD = 3.3V 0.6 V Input Threshold High TA = +25°C, VDD = 3.3V 2.4 V Input Hysteresis 0.3 V Input Resistance -15V < VR_IN < +15V, TA = +25°C 35 7 k Ω Output Voltage Swing All outputs loaded with 3k Ω to ground ±5 ±5.4 V Output Resistance VDD = VL = V+ = V- = 0, VOUT = ±2V 300 10M Ω Short-Circuit Current ±35 ±60 mA Output Leakage Current VDD = 0 or 3V to 3.6V, VOUT = ±12V, transmitters disabled ±25 µA POSITIVE REFERENCE VOLTAGE NEGATIVE REFERENCE VOLTAGE LOGIC INPUTS ( SD232, SDLCD, T1IN, T2IN, UP, DOWN) TRANSMITTER OUTPUTS RECEIVER INPUTS RECEIVER OUTPUTS |
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