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MAX1455C/D Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX1455C/D Datasheet(HTML) 3 Page - Maxim Integrated Products |
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3 / 25 page  (VDD = +5V, VSS = 0V, TA = +25°C, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Load Current Sink VOUT = +0.5V to +4.5V, TA = TMIN to TMAX, Clip[1:0] = 00 2 mA DC Output Impedance 1 Ω Offset DAC Output Ratio D VOUT/DODAC 1.0 V/V Offset TC DAC Output Ratio D VOUT/DOTCDAC 1.0 V/V Step Response 0% to 63% of final value 300 µs Output Capacitive Load 1000 nF Output Noise DC to 1kHz (gain = minimum, source impedance = 5kΩ) 2.5 mVRMS BRIDGE DRIVE Bridge Current IBDR VBDR ≤ 3.75V 0.1 0.5 2 mA Current Mirror Ratio 12 mA/mA Minimum FSODAC Code Recommended minimum value 4000 Hex DIGITAL-TO-ANALOG CONVERTERS DAC Resolution 16 Bits ODAC Bit Weight D VOUT/DCODE, DAC reference = VDD = +5.0V (Note 4) 153 µV/Bit OTCDAC Bit Weight D VOUT/DCODE, DAC reference = VBDR = 2.5V (Note 4) 76 µV/Bit FSODAC Bit Weight D VOUT/DCODE, DAC reference = VDD = +5.0V (Note 4) 153 µV/Bit FSOTCDAC Bit Weight D VOUT/DCODE, DAC reference = VBDR = 2.5V (Note 4) 76 µV/Bit COARSE-OFFSET DAC IRODAC Resolution Excluding sign bit 3 Bits IRODAC Bit Weight D VOUT/DCODE, input referred, DAC reference = VDD = +5.0V (Note 4) 9 mV/Bit INTERNAL RESISTORS Current-Source Reference RISRC 75 kΩ Full-Span Output (FSO) Trim Resistor ∆RSTC 75 kΩ Resistor Temperature Coefficient Applies to RISRC and DRSTC 1333 ppm/°C Minimum Resistance Value Applies to RISRC and DRSTC 60 kΩ Maximum Resistance Value Applies to RISRC and DRSTC 90 kΩ Resistor Matching RISRC to DRSTC 1 % AUXILIARY OP AMP Open-Loop Gain 90 dB Input Common-Mode Range VCM VSS VDD V Output Swing No load, TA = TMIN to TMAX VSS + 0.01 VDD - 0.01 V MAX1455 Low-Cost Precision Sensor Signal Conditioner www.maximintegrated.com Maxim Integrated │ 3 Electrical Characteristics (continued) |
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