Datasheet LTC1864, LTC1865 (Analog Devices) - 7

LTC1864/LTC1865
TIMING CHARACTERISTICS The
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denotes specifi cations which apply over the full operating temperature range, otherwise specifi cations are TA = 25°C. VCC = 5V, VREF = 5V, fSCK = fSCK(MAX) as defi ned in Recommended Operating Conditions, unless otherwise noted. LTC1864/LTC1865 SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
tCONV Conversion Time (See Figure 1) ● 2.75 3.2 μs H-Grade ● 2.75 3.3 μs fSMPL(MAX) Maximum Sampling Frequency ● 250 kHz H-Grade ● 234 kHz tdDO Delay Time, SCK↓ to SDO Data Valid CLOAD = 20pF 15 20 ns CLOAD = 20pF ● 25 ns CLOAD = 20pF, H-Grade ● 30 ns tdis Delay Time, CONV↑ to SDO Hi-Z ● 30 60 ns H-Grade ● 30 65 ns ten Delay Time, CONV↓ to SDO Enabled CLOAD = 20pF ● 30 60 ns CLOAD = 20pF, H-Grade ● 30 65 ns thDO Time Output Data Remains Valid After SCK↓ CLOAD = 20pF ● 5 10 ns tr SDO Rise Time CLOAD = 20pF 8 ns tf SDO Fall Time CLOAD = 20pF 4 ns
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 3:
Integral nonlinearity is defi ned as deviation of a code from a may cause permanent damage to the device. Exposure to any Absolute straight line passing through the actual endpoints of the transfer curve. Maximum Rating condition for extended periods may affect device The deviation is measured from the center of the quantization band. reliability and lifetime.
Note 4:
Channel leakage current is measured while the part is in sample
Note 2:
All voltage values are with respect to GND. mode.
Note 5:
Guaranteed by design, not subject to test. 18645fb 7