Datasheet LTC2471, LTC2473 (Analog Devices) - 3

LTC2471/LTC2473
elecTrical characTerisTics The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 2) PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution 16 Bits Integral Nonlinearity Output Rate 208sps (Note 4) l 2 8.5 LSB Output Rate 833sps (Note 4) l 8 16 LSB Offset Error l ±1 ±2.5 mV Offset Error Drift 0.05 LSB/°C Gain Error l ±0.01 ±0.25 % of FS Gain Error Drift l 0.15 LSB/°C Transition Noise 3 µVRMS Power Supply Rejection DC 80 dB
analog inpuTs The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V + IN Positive Input Voltage Range LTC2473 l 0 VREF V V – IN Negative Input Voltage Range LTC2473 l 0 VREF V VIN Input Voltage Range LTC2471 l 0 VREF V V + + – OR , VUR Overrange/Underrange Voltage, IN+ VIN = 0.625V 8 LSB V – – + OR , VUR Overrange/Underrange Voltage, IN– VIN = 0.625V 8 LSB CIN IN+, IN–, IN Sampling Capacitance 0.35 pF IDC_LEAK(IN+, IN–, IN) IN+, IN– DC Leakage Current (LTC2473) VIN = GND (Note 8) l –10 ±1 10 nA IN DC Leakage Current (LTC2471) VIN = VCC (Note 8) l –10 ±1 10 nA ICONV Input Sampling Current (Notes 5, 8) 50 nA VREF Reference Output Voltage l 1.247 1.25 1.253 V Reference Voltage Coefficient (Note 9) C-Grade l ±2 ±10 ppm/°C I-Grade ±5 ppm/°C Reference Line Regulation 2.7V ≤ VCC ≤ 5.5V –90 dB Reference Short-Circuit Current VCC = 5.5, Forcing Output to GND (Note 8) l 35 mA COMP Pin Short-Circuit Current VCC = 5.5, Forcing Output to GND (Note 8) l 200 µA Reference Load Regulation 2.7V ≤ VCC ≤ 5.5V, IOUT = 100μA Sourcing 3.5 mV/mA Reference Output Noise Density CCOMP= 0.1μF, CREFOUT = 0.1μF, At f = 30 nV/√Hz 1ksps
power requireMenTs The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VCC Supply Voltage l 2.7 5.5 V ICC Supply Current Conversion LTC2473 (Note 8) l 3.5 5 mA Conversion LTC2471 (Note 8) l 2.5 4 mA Nap (Note 8) l 800 1500 µA Sleep (Note 8) l 0.2 2 µA 24713fb For more information www.linear.com/LTC2471 3 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Analog Inputs Power Requirements I2C Inputs and Outputs I2C Timing Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Package Description Revision History Typical Application Related Parts