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LTC2634IUD-LZ10TR Datasheet(PDF) 10 Page - Linear Technology |
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LTC2634IUD-LZ10TR Datasheet(HTML) 10 Page - Linear Technology |
10 / 28 page LTC2634 10 2634f ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 4.5V to 5.5V, VOUT unloaded unless otherwise specified. LTC2634-HMI12/-HMI10/-HMI8/-HMX12/-HMX10/-HMX8/-HZ12/-HZ10/-HZ8 (VFS = 4.096V) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS t1 SDI Valid to SCK Setup l 4ns t2 SDI Valid to SCK Hold l 4ns t3 SCK High Time l 9ns t4 SCK Low Time l 9ns t5 CS/LD Pulse Width l 10 ns t6 LSB SCK High to CS/LD High l 7ns t7 CS/LD Low to SCK High l 7ns t8 CLR Pulse Width l 20 ns t9 LDAC Pulse Width l 15 ns t10 CS/LD High to SCK Positive Edge l 7ns SCK Frequency 50% Duty Cycle l 50 MHz t11 CS/LD High to LDAC High or Low Transition l 200 ns t12 SDO Propagation Delay from SCK Falling Edge CLOAD = 10pF VCC = 4.5V to 5.5V l 20 ns Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: All voltages are with respect to GND. Note 3: High temperatures degrade operating lifetimes. Operating lifetime is derated at temperatures greater than 105°C. Note 4: Linearity and monotonicity are defined from code kL to code 2N – 1, where N is the resolution and kL is given by kL = 0.016 • (2N/ VFS), rounded to the nearest whole code. For VFS = 2.5V and N = 12, kL = 26 and linearity is defined from code 26 to code 4,095. For VFS = 4.096V and N = 12, kL = 16 and linearity is defined from code 16 to code 4,095. Note 5: Inferred from measurement at code 16 (LTC2634-12), code 4 (LTC2634-10) or code 1 (LTC2634-8), and at full-scale. Note 6: This IC includes current limiting that is intended to protect the device during momentary overload conditions. Junction temperature can exceed the rated maximum during current limiting. Continuous operation above the specified maximum operating junction temperature may impair device reliability. Note 7: Digital inputs at 0V or VCC. Note 8: Guaranteed by design and not production tested. Note 9: Internal Reference mode. DAC is stepped 1/4 scale to 3/4 scale and 3/4 scale to 1/4 scale. Load is 2kΩ in parallel with 100pF to GND. Note 10: Temperature coefficient is calculated by dividing the maximum change in output voltage by the specified temperature range. |
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