Datasheet LTC2344-18 (Analog Devices) - 6

LTC2344-18
POWER REQUIREMENTS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 8) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS CMOS I/O Mode
VDD Supply Voltage l 4.75 5.00 5.25 V OVDD Supply Voltage l 1.71 5.25 V IVDD Supply Current 400ksps Sample Rate, 4 Channels Enabled l 15.1 17.6 mA 400ksps Sample Rate, 4 Channels Enabled, VREFBUF = 5V (Note 14) l 13.5 16.0 mA Acquisition Mode l 1.2 2.0 mA Power Down Mode (C-Grade and I-Grade) l 65 225 μA Power Down Mode (H-Grade) l 65 500 µA IOVDD Supply Current 400ksps Sample Rate, 4 Channels Enabled (CL = 25pF) l 2.0 3.0 mA Acquisition Mode l 1 20 μA Power Down Mode l 1 20 μA PD Power Dissipation 400ksps Sample Rate, 4 Channels Enabled l 81 96 mW Acquisition Mode l 6.0 10 mW Power Down Mode (C-Grade and I-Grade) l 0.33 1.2 mW Power Down Mode (H-Grade) l 0.33 2.6 mW
LVDS I/O Mode
VDD Supply Voltage l 4.75 5.00 5.25 V OVDD Supply Voltage l 2.375 5.25 V IVDD Supply Current 400ksps Sample Rate, 4 Channels Enabled l 17.4 20.5 mA 400ksps Sample Rate, 4 Channels Enabled, VREFBUF = 5V (Note 14) l 15.7 18.1 mA Acquisition Mode l 2.8 3.8 mA Power Down Mode (C-Grade and I-Grade) l 65 225 μA Power Down Mode (H-Grade) l 65 500 µA IOVDD Supply Current 400ksps Sample Rate, 4 Channels Enabled (RL = 100Ω) l 7.4 9.1 mA Acquisition Mode (RL = 100Ω) l 7 8.2 mA Power Down Mode l 1 20 μA PD Power Dissipation 400ksps Sample Rate, 4 Channels Enabled l 106 126 mW Acquisition Mode l 32 40 mW Power Down Mode (C-Grade and I-Grade) l 0.33 1.2 mW Power Down Mode (H-Grade) l 0.33 2.6 mW
ADC TIMING CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 8) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
fSMPL Maximum Sampling Frequency 4 Channels Enabled l 400 ksps 3 Channels Enabled l 500 ksps 2 Channels Enabled l 666 ksps 1 Channel Enabled l 1000 ksps tCYC Time Between Conversions 4 Channels Enabled, fSMPL = 400ksps l 2500 ns 3 Channels Enabled, fSMPL = 500ksps l 2000 ns 2 Channels Enabled, fSMPL = 666ksps l 1500 ns 1 Channel Enabled, fSMPL = 1000ksps l 1000 ns 234418f 6 For more information www.linear.com/LTC2344-18 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Converter Characteristics Dynamic Accuracy Internal Reference Characteristics Reference Buffer Characteristics Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Configuration Tables Functional Block Diagram Timing Diagram Applications Information Board Layout Package Description Typical Application Related Parts