Datasheet LTC1860, LTC1861 (Analog Devices) - 5

LTC1860/LTC1861
DigiTal anD Dc elecTrical cHaracTerisTics The
l
denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C. VCC = 5V, VREF = 5V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
IOZ Hi-Z Output Leakage CONV = VCC l ±3 µA ISOURCE Output Source Current VOUT = 0V –25 mA ISINK Output Sink Current VOUT = VCC 20 mA IREF Reference Current (LTC1860 SO-8, CONV = VCC l 0.001 3 µA MSOP and LTC1861 MSOP) fSMPL = fSMPL(MAX) l 0.05 0.1 mA ICC Supply Current CONV = VCC After Conversion l 0.001 3 µA CONV = VCC After Conversion, H-Grade l 0.001 5 µA fSMPL = fSMPL(MAX) l 0.85 1.3 mA PD Power Dissipation fSMPL = fSMPL(MAX) 1.25 mV
recoMMenDeD operaTing conDiTions The
l
denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VCC Supply Voltage 4.75 5.25 V fSCK Clock Frequency l 20 MHz H-Grade l 16.7 MHz tCYC Total Cycle Time 12 • SCK + tCONV µs tSMPL Analog Input Sampling Time LTC1860 (Note 5) 12 SCK LTC1861 (Note 5) 10 SCK tsuCONV Setup Time CONV↓ Before First SCK↑, 60 30 ns (See Figure 1) H-Grade 65 30 ns thDI Holdtime SDI After SCK↑ LTC1861 15 ns tsuDI Setup Time SDI Stable Before SCK↑ LTC1861 15 ns tWHCLK SCK High Time fSCK = fSCK(MAX) 40% 1/fSCK tWLCLK SCK Low Time fSCK = fSCK(MAX) 40% 1/fSCK tWHCONV CONV High Time Between Data Transfer (Note 5) tCONV µs Cycles tWLCONV CONV Low Time During Data Transfer (Note 5) 12 SCK thCONV Hold Time CONV Low After Last SCK↑ 13 ns 18601fb For more information www.linear.com/LTC1860 5 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Applications Information Package Description Typical Application Related Parts