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LTC2306IDDXTRPBF Datasheet(PDF) 5 Page - Linear Technology |
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LTC2306IDDXTRPBF Datasheet(HTML) 5 Page - Linear Technology |
5 / 20 page LTC2302/LTC2306 5 23026f TIMING CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS fSMPL(MAX) Maximum Sampling Frequency l 500 kHz fSCK Shift Clock Frequency l 40 MHz tWHCONV CONVST High Time (Note 9) l 20 ns tHD Hold Time SDI After SCK ↑ l 2.5 ns tSUDI Setup Time SDI Stable Before SCK ↑ l 0ns tWHCLK SCK High Time fSCK = fSCK(MAX) l 10 ns tWLCLK SCK Low Time fSCK = fSCK(MAX) l 10 ns tWLCONVST CONVST Low Time During Data Transfer (Note 9) l 410 ns tHCONVST Hold Time CONVST Low After Last SCK ↓ (Note 9) l 20 ns tCONV Conversion Time l 1.3 1.6 μs tACQ Acquisition Time 7th SCK ↑ to CONVST↑ (Note 9) l 240 ns tdDO SDO Data Valid After SCK ↓ CL = 25pF (Note 9) l 10.8 12.5 ns thDO SDO Hold Time SCK ↓ CL = 25pF l 4ns ten SDO Valid After CONVST ↓ CL = 25pF l 11 15 ns tdis Bus Relinquish Time CL = 25pF l 11 15 ns tr SDO Rise Time CL = 25pF 4 ns tf SDO Fall Time CL = 25pF 4 ns tCYC Total Cycle Time 2μs 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 voltage values are with respect to ground with VDD and OVDD wired together (unless otherwise noted). Note 3: When these pin voltages are taken below ground or above VDD, they will be clamped by internal diodes. These products can handle input currents greater than 100mA below ground or above VDD without latchup. Note 4: VDD = 5V, OVDD = 5V, VREF = 4.096V, fSMPL = 500ksps, unless otherwise specified. Note 5: Linearity, offset and full-scale specifications apply for a single- ended analog input with respect to GND for the LTC2306 and IN+ with respect to IN– tied to GND for the LTC2302. Note 6: Integral nonlinearity is defined as the deviation of a code from a straight line passing through the actual endpoints of the transfer curve. The deviation is measured from the center of the quantization band. Note 7: Bipolar zero error is the offset voltage measured from –0.5LSB when the output code flickers between 0000 0000 0000 and 1111 1111 1111. Unipolar zero error is the offset voltage measured from +0.5LSB when the output code flickers between 0000 0000 0000 and 0000 0000 0001. Note 8: Full-scale bipolar error is the worst-case of –FS or +FS untrimmed deviation from ideal first and last code transitions and includes the effect of offset error. Unipolar full-scale error is the deviation of the last code transition from ideal and includes the effect of offset error. Note 9: Guaranteed by design, not subject to test. Note 10: All specifications in dB are referred to a full-scale ±2.048V input with a 4.096V reference voltage. Note 11: Full linear bandwidth is defined as the full-scale input frequency at which the SINAD degrades to 60dB or 10 bits of accuracy. |
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