Datasheet LTC2453 (Analog Devices) - 3

LTC2453
ANALOG INPUTS AND REFERENCES 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 l 0 VCC V V – IN Negative Input Voltage Range l 0 VCC V V + + – REF Positive Reference Voltage Range VREF – VREF ≥ 2.5V l VCC – 2.5 VCC V V – + – REF Negative Reference Voltage Range VREF – VREF ≥ 2.5V l 0 VCC – 2.5 V V + + – OR + VUR Overrange + Underrange Voltage, IN+ VREF = 5V, VIN = 2.5V (See Figure 2) 31 LSB V – – + OR + VUR Overrange + Underrange Voltage, IN– VREF = 5V, VIN = 2.5V (See Figure 2) 31 LSB CIN IN+, IN– Sampling Capacitance 0.35 pF IDC_LEAK(IN+) IN+ DC Leakage Current VIN = GND (Note 8) l –10 1 10 nA VIN = VCC (Note 8) l –10 1 10 nA IDC_LEAK(IN–) IN– DC Leakage Current VIN = GND (Note 8) l –10 1 10 nA VIN = VCC (Note 8) l –10 1 10 nA IDC_LEAK(REF+, REF–) REF+, REF– DC Leakage Current VREF = 3V (Note 8) l –10 1 10 nA ICONV Input Sampling Current (Note 5) 50 nA
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 l 800 1200 µA Sleep l 0.2 0.6 µA
I2C INPUTS AND OUTPUTS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Notes 2, 7) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIH High Level Input Voltage l 0.7VCC V VIL Low Level Input Voltage l 0.3VCC V II Digital Input Current l –10 10 µA VHYS Hysteresis of Schmidt Trigger Inputs (Note 3) l 0.05VCC V VOL Low Level Output Voltage (SDA) I = 3mA l 0.4 V IIN Input Leakage 0.1VCC ≤ VIN ≤ 0.9VCC l 1 µA CI Capacitance for Each I/O Pin l 10 pF CB Capacitance Load for Each Bus Line l 400 pF 2453fc 3 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Analog Inputs And References Power Requirements I2C Inputs And Outputs I2C Timing Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Application Package Description Revision History Related Parts