Datasheet LTC2301, LTC2305 (Analog Devices) - 5

LTC2301/LTC2305
POWER REQUIREMENTS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VDD Supply Voltage l 4.75 5 5.25 V IDD Supply Current 14ksps Sample Rate l 2.3 3.5 mA Nap Mode SLP Bit = 0, Conversion Done l 225 400 μA Sleep Mode SLP Bit = 1, Conversion Done l 7 15 μA PD Power Dissipation 14ksps Sample Rate l 11.5 17.5 mW Nap Mode SLP Bit = 0, Conversion Done l 1.125 2 mW Sleep Mode SLP Bit = 1, Conversion Done l 35 75 μW
I2C TIMING CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
fSCL SCL Clock Frequency l 400 kHz tHD(SDA) Hold Time (Repeated) START Condition l 0.6 μs tLOW LOW Period of the SCL Pin l 1.3 μs tHIGH HIGH Period of the SCL Pin l 0.6 μs tSU(STA) Set-Up Time for a Repeated START l 0.6 μs Condition tHD(DAT) Data Hold Time l 0 0.9 μs tSU(DAT) Data Set-Up Time l 100 ns tr Rise Time for SDA/SCL Signals (Note 11) l 20 + 0.1CB 300 ns tf Fall Time for SDA/SCL Signals (Note 11) l 20 + 0.1CB 300 ns tSU(STO) Set-Up Time for STOP Condition l 0.6 μs tBUF Bus Free Time Between a Second START l 1.3 μs Condition
ADC TIMING CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
fSMPL Throughput Rate (Successive Reads) l 14 ksps tCONV Conversion Time l 1.3 1.6 μs tACQ Acquisition Time (Note 8) l 240 ns tREFWAKE REFCOMP Wakeup Time (Note 12) CREFCOMP = 10μF, CREF = 2.2μF 200 ms 23015fb 5