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LTC2480HMS-PBF Datasheet(PDF) 11 Page - Linear Technology |
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LTC2480HMS-PBF Datasheet(HTML) 11 Page - Linear Technology |
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11 / 42 page  LTC2480 11 2480fc TYPICAL PERFORMANCE CHARACTERISTICS Offset Error vs VCC (2x Speed Mode) Offset Error vs VREF (2x Speed Mode) PSRR vs Frequency at VCC (2x Speed Mode) PSRR vs Frequency at VCC (2x Speed Mode) PSRR vs Frequency at VCC (2x Speed Mode) VCC (V) 2 2.5 0 100 250 3 4 4.5 2480 G41 50 200 150 3.5 5 5.5 VREF = 2.5V VIN = 0V VIN(CM) = GND fO = GND TA = 25°C VREF (V) 0 190 200 210 3 5 2480 G42 180 170 160 12 4 220 230 240 VCC = 5V VIN = 0V VIN(CM) = GND fO = GND TA = 25°C FREQUENCY AT VCC (Hz) 1 0 –20 –40 –60 –80 –100 –120 –140 1k 100k 2480 G43 10 100 10k 1M VCC = 4.1V DC REF+ = 2.5V REF– = GND IN+ = GND IN– = GND fO = GND TA = 25°C FREQUENCY AT VCC (Hz) 0 –140 –120 –80 –60 –40 0 20 100 140 2480 G44 –100 –20 80 180 220 200 40 60 120 160 VCC = 4.1V DC ±1.4V REF+ = 2.5V REF– = GND IN+ = GND IN– = GND fO = GND TA = 25°C FREQUENCY AT VCC (Hz) 30600 –60 –40 0 30750 2480 G45 –80 –100 30650 30700 30800 –120 –140 –20 VCC = 4.1V DC ±0.7V REF+ = 2.5V REF– = GND IN+ = GND IN– = GND fO = GND TA = 25°C PIN FUNCTIONS SDI (Pin 1): Serial Data Input. This pin is used to select the GAIN, line frequency rejection, input, temperature sensor and 2x speed mode. Data is shifted into the SDI pin on the rising edge of serial clock (SCK). VCC(Pin2):PositiveSupplyVoltage.BypasstoGND(Pin 8) with a 1μF tantalum capacitor in parallel with 0.1μF ceramic capacitor as close to the part as possible. VREF (Pin 3): Positive Reference Input. The voltage on this pin can have any value between 0.1V and VCC. The negative reference input is GND (Pin 8). IN+ (Pin 4), IN– (Pin 5): Differential Analog Inputs. The voltage on these pins can have any value between GND – 0.3V and VCC + 0.3V. Within these limits the converter bipolar input range (VIN = IN+ – IN–) extends from –0.5 • VREF/GAIN to 0.5 • VREF/GAIN. Outside this input range the converter produces unique overrange and underrange output codes. CS (Pin 6): Active LOW Chip Select. A LOW on this pin enables the digital input/output and wakes up the ADC. Following each conversion the ADC automatically enters the sleep mode and remains in this low power state as |
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Similar Description - LTC2480HMS-PBF |
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