Datasheet LTC6903, LTC6904 (Analog Devices) - 4

LTC6903/LTC6904
s erial porT elecTrical characTerisTics The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. V+ = 2.7V to 5.5V, GND = 0V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIH Min High Level Input Voltage l 0.67 V+ V SEN, SCK, SDI Pins VIL Max Low Level Input Voltage l 0.33 V+ V SEN, SCK, SDI Pins IIN Digital Input Leakage l 10 µA SEN, SCK, SDI Pins
Ti Ming characTerisTics The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. V+ = 2.7V to 5.5V, GND = 0V, unless otherwise noted. SYMBOL PARAMETER MIN TYP MAX UNITS LTC6903 (Notes 5, 6)
fSCK Serial Port Clock Frequency l 20 MHz tCKHI Min Clock HIGH Time l 25 ns tCKLO Min Clock LOW Time l 25 ns tSU Min Setup Time – SDI to SCK l 10 ns tHLD Min Hold Time – SCK to SDI l 10 ns tLCH Min Latch Time – SEN to SEN l 400 ns tFCK Min First Clock – SEN to SCK l 20 ns
LTC6904 (Notes 5, 6)
fSMB SMBus Operating Frequency l 10 100 kHz tBUF Bus Free Time Between STOP and START Condition l 4.7 µs tHD,STA Hold Time After (Repeated) START Condition l 4.0 µs tSU,STA Repeated START Condition Setup Time l 4.7 µs tSU,STO STOP Condition Setup Time l 4.0 µs
LTC6904 (Notes 5, 6)
tHD,DAT Data Hold Time l 300 ns tSU,DAT Data Setup Time l 250 ns tLOW Clock LOW Period l 4.7 µs tHIGH Clock HIGH Period l 4.0 50 µs tf Clock, Data Fall Time l 300 ns tr Clock, Data Rise Time l 1000 ns
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings performance from –40°C to 85°C but are not tested or QA sampled may cause permanent damage to the device. Exposure to any Absolute at these temperatures. The LTC6903IMS8 and LTC6904IMS8 are Maximum Rating condition for extended periods may affect device guaranteed to meet the specified performance limits over the –40°C to reliability and lifetime. 85°C temperature range. The LTC6903HMS8 and LTC6904HMS8 are
Note 2:
A heat sink may be required to keep the junction temperature guaranteed to meet the specified performance limits over the –40°C to below the absolute maximum when the output is shorted indefinitely. 125°C temperature range. The LTC6904MPMS8 is guaranteed to meet the
Note 3:
The LTC6903CMS8, LTC6904CMS8, LTC6903IMS8 and specified performance limits over the –55°C to 125°C temperature range. LTC6904IMS8 are guaranteed functional over the operating temperature
Note 5:
All values are referenced to VIH and VIL levels. range of –40°C to 85°C.
Note 6:
Guaranteed by design and not subject to test.
Note 4:
The LTC6903CMS8 and LTC6904CMS8 are guaranteed to meet
Note 7:
Parts with tighter frequency accuracy are available. Consult LTC the specified performance limits over the 0°C to 70°C temperature range Marketing for details. and are designed, characterized and expected to meet the specified 69034fe 4 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Power Requirements Serial Port Electrical Characteristics Timing Characteristics Typical Performance Characteristics Pin Functions Block Diagram Timing Diagrams Theory of Operation Applications Information Package Description Revision History Typical Application Related Parts