Datasheet LTC2495 (Analog Devices) - 10
| 制造商 | Analog Devices |
| 描述 | 16-Bit 8-/16-Channel ΔΣ ADC with PGA, Easy Drive and I2C Interface |
| 页数 / 页 | 34 / 10 — typical perForMance characteristics. Offset Error vs Temperature. Offset … |
| 文件格式/大小 | PDF / 578 Kb |
| 文件语言 | 英语 |
typical perForMance characteristics. Offset Error vs Temperature. Offset Error vs VCC. Offset Error vs VREF. (2x Speed Mode)
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LTC2495
typical perForMance characteristics Offset Error vs Temperature Offset Error vs VCC Offset Error vs VREF (2x Speed Mode) (2x Speed Mode) (2x Speed Mode)
240 250 240 VCC = 5V VREF = 2.5V VCC = 5V VREF = 5V V 230 IN = 0V 230 VIN = 0V VIN = 0V 200 VIN(CM) = GND VIN(CM) = GND VIN(CM) = GND f 220 O = GND 220 fO = GND fO = GND TA = 25°C TA = 25°C 210 150 210 200 200 100 190 190 OFFSET ERROR (µV) OFFSET ERROR (µV) OFFSET ERROR (µV) 180 180 50 170 170 160 0 160 –45 –30 –15 0 15 30 45 60 75 90 2 2.5 3 3.5 4 4.5 5 5.5 0 1 2 3 4 5 TEMPERATURE (°C) VCC (V) VREF (V) 2495 G33 2495 G34 2495 G35
PSRR vs Frequency at VCC PSRR vs Frequency at VCC PSRR vs Frequency at VCC (2x Speed Mode) (2x Speed Mode) (2x Speed Mode)
0 0 0 VCC = 4.1V DC VCC = 4.1V DC ±1.4V VCC = 4.1V DC ±0.7V REF+ = 2.5V REF+ = 2.5V –20 REF+ = 2.5V REF– = GND –20 REF– = GND –20 REF– = GND IN+ = GND IN+ = GND IN+ = GND –40 IN– = GNDf –40 IN– = GND –40 IN– = GND fO = GND fO = GND fO = GND –60 TA = 25°C –60 TA = 25°C –60 TA = 25°C –80 –80 –80 REJECTION (dB) RREJECTION (dB) REJECTION (dB) –100 –100 –100 –120 –120 –120 –140 –140 –140 1 10 100 1k 10k 100k 1M 0 20 40 60 80 100 120 140 160 180 200 220 30600 30650 30700 30750 30800 FREQUENCY AT VCC (Hz) FREQUENCY AT VCC (Hz) FREQUENCY AT VCC (Hz) 2495 G36 2495 G37 2495 G38 2495fe 10 For more information www.linear.com/LTC2495 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration order information Electrical Characteristics (Normal Speed) Electrical Characteristics (2x Speed) Converter Characteristics Analog Input and Reference I2C Inputs And Digital Outputs Power Requirements Digital Inputs And Digital Outputs I2C Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Applications Information Package Description Revision History Related Parts
typical perForMance characteristics Offset Error vs Temperature Offset Error vs VCC Offset Error vs VREF (2x Speed Mode) (2x Speed Mode) (2x Speed Mode)
240 250 240 VCC = 5V VREF = 2.5V VCC = 5V VREF = 5V V 230 IN = 0V 230 VIN = 0V VIN = 0V 200 VIN(CM) = GND VIN(CM) = GND VIN(CM) = GND f 220 O = GND 220 fO = GND fO = GND TA = 25°C TA = 25°C 210 150 210 200 200 100 190 190 OFFSET ERROR (µV) OFFSET ERROR (µV) OFFSET ERROR (µV) 180 180 50 170 170 160 0 160 –45 –30 –15 0 15 30 45 60 75 90 2 2.5 3 3.5 4 4.5 5 5.5 0 1 2 3 4 5 TEMPERATURE (°C) VCC (V) VREF (V) 2495 G33 2495 G34 2495 G35
PSRR vs Frequency at VCC PSRR vs Frequency at VCC PSRR vs Frequency at VCC (2x Speed Mode) (2x Speed Mode) (2x Speed Mode)
0 0 0 VCC = 4.1V DC VCC = 4.1V DC ±1.4V VCC = 4.1V DC ±0.7V REF+ = 2.5V REF+ = 2.5V –20 REF+ = 2.5V REF– = GND –20 REF– = GND –20 REF– = GND IN+ = GND IN+ = GND IN+ = GND –40 IN– = GNDf –40 IN– = GND –40 IN– = GND fO = GND fO = GND fO = GND –60 TA = 25°C –60 TA = 25°C –60 TA = 25°C –80 –80 –80 REJECTION (dB) RREJECTION (dB) REJECTION (dB) –100 –100 –100 –120 –120 –120 –140 –140 –140 1 10 100 1k 10k 100k 1M 0 20 40 60 80 100 120 140 160 180 200 220 30600 30650 30700 30750 30800 FREQUENCY AT VCC (Hz) FREQUENCY AT VCC (Hz) FREQUENCY AT VCC (Hz) 2495 G36 2495 G37 2495 G38 2495fe 10 For more information www.linear.com/LTC2495 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration order information Electrical Characteristics (Normal Speed) Electrical Characteristics (2x Speed) Converter Characteristics Analog Input and Reference I2C Inputs And Digital Outputs Power Requirements Digital Inputs And Digital Outputs I2C Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Applications Information Package Description Revision History Related Parts