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MAX5499 Datasheet(PDF) 5 Page - Maxim Integrated Products |
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MAX5499 Datasheet(HTML) 5 Page - Maxim Integrated Products |
5 / 20 page 10-Bit, Dual, Nonvolatile, Linear-Taper Digital Potentiometers _______________________________________________________________________________________ 5 TIMING CHARACTERISTICS (VDD = +2.7V to +5.25V, VSS = GND = 0, VH_ = VDD, VL_ = 0, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VDD = +5.0V, TA = +25°C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS ANALOG SECTION MAX5494/MAX5498 5 Wiper Settling Time (Note 6) tS MAX5495/MAX5499 22 µs SPI-COMPATIBLE SERIAL INTERFACE (Figure 6) SCLK Frequency fSCLK 7 MHz SCLK Clock Period tCP 140 ns SCLK Pulse-Width High tCH 60 ns SCLK Pulse-Width Low tCL 60 ns CS Fall to SCLK Rise Setup tCSS 60 ns SCLK Rise to CS Rise Hold tCSH 0ns DIN to SCLK Setup tDS 40 ns DIN Hold After SCLK tDH 0ns SCLK Rise to CS Fall Delay tCS0 15 ns CS Rise to SCLK Rise Hold tCS1 60 ns CS Pulse-Width High tCSW 150 ns Write NV Register Busy Time tBUSY 12 ms Note 1: 100% production tested at TA = +25°C and TA = +85°C. Guaranteed by design to TA = -40°C. Note 2: The DNL and INL are measured for the voltage-divider with H_ = VDD and L_ = VSS. The wiper terminal (W_) is unloaded and measured with a high-input-impedance voltmeter. Note 3: The DNL and INL are measured with L_ = VSS = 0. For VDD = 5V, the wiper terminal is driven with a current source of IW = 80µA for the 50kΩ device and IW = 400µA for the 10kΩ device. For VDD = 3V, the wiper terminal is driven with a current source of IW = 40µA for the 50kΩ device and IW = 200µA for the 10kΩ device. Note 4: The wiper resistance is measured using the source currents given in Note 3. Note 5: The device draws higher supply current when the digital inputs are driven with voltages between (VDD - 0.5V) and (GND + 0.5V). See the Supply Current vs. Digital Input Voltage graph in the Typical Operating Characteristics. Note 6: Wiper settling test condition uses the voltage-divider with a 10pF load on W_. Transition code from 0 to 495 and measure the time from CS going high to the wiper voltage settling to within 0.5% of its final value. |
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