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LTC2499CUHF Datasheet(PDF) 10 Page - Linear Technology |
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LTC2499CUHF Datasheet(HTML) 10 Page - Linear Technology |
10 / 34 page LTC2499 10 2499fc PSRR vs Frequency at VCC (2x Speed Mode) PSRR vs Frequency at VCC (2x Speed Mode) FREQUENCY AT VCC (Hz) 0 –140 –120 –80 –60 –40 0 20 100 140 2499 G37 –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 2499 G38 –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 Offset Error vs VREF (2x Speed Mode) PSRR vs Frequency at VCC (2x Speed Mode) VREF (V) 0 190 200 210 3 5 2499 G35 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 2499 G36 10 100 10k 1M VCC = 4.1V DC REF+ = 2.5V REF– = GND IN+ = GND IN– = GND fO = GND TA = 25°C TYPICAL PERFORMANCE CHARACTERISTICS Offset Error vs Temperature (2x Speed Mode) TEMPERATURE (°C) –45 200 210 220 75 2499 G33 190 180 160 –15 15 45 –30 90 0 30 60 170 240 230 VCC = 5V VREF = 5V VIN = 0V VIN(CM) = GND fO = GND Offset Error vs VCC (2x Speed Mode) VCC (V) 2 2.5 0 100 250 3 4 4.5 2499 G34 50 200 150 3.5 5 5.5 VREF = 2.5V VIN = 0V VIN(CM) = GND fO = GND TA = 25°C |
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