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MAX5331 Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX5331 Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 16 page ![]() 12-Bit DACs with 32-Channel Sample-and-Hold Outputs _______________________________________________________________________________________ 3 ELECTRICAL CHARACTERISTICS (continued) (VDD = +10V, VSS = -4V, VLOGIC = VLDAC = VLSHA = +5V, VREF = +2.5V, AGND = DGND = VGS = 0, RL ≥ 10MΩ, CL = 50pF, CLKSEL = +5V, fECLK = 400kHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DYNAMIC CHARACTERISTICS Sample-and-Hold Settling (Note 4) 0.08 % SCLK Feedthrough 0.5 nV•s fSEQ Feedthrough 0.5 nV•s Hold Step 0.25 1mV Droop Rate VOUT_ = 0 (Note 5) 1 300 µV/ms Output Noise 250 µVRMS REFERENCE INPUT Input Resistance 7k Ω Reference Input Voltage VREF 2.5 V GROUND-SENSE INPUT Input Voltage Range VGS -0.5 +0.5 V Input Bias Current IGS -0.5V ≤ VGS ≤ 0.5V -60 0 µA GS Gain (Note 6) 0.998 1 1.002 V/V DIGITAL-INTERFACE DC CHARACTERISTICS Input High Voltage VIH 2.0 V Input Low Voltage VIL 0.8 V Input Current ±1µA TIMING CHARACTERISTICS (Figure 2) Sequencer Clock Frequency fSEQ Internal oscillator 80 100 120 kHz External Clock Frequency fECLK (Note 7) 480 kHz SCLK Frequency fSCLK 20 MHz SCLK Pulse-Width High tCH 15 ns SCLK Pulse-Width Low tCL 15 ns CS-Low to SCLK-High Setup Time tCSSO 15 ns CS-High to SCLK-High Setup Time tCSS1 15 ns SCLK-High to CS-Low Hold Time tCSH0 10 ns |
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