Datasheet LTC2492 (Analog Devices) - 10
| Hersteller | Analog Devices |
| Beschreibung | 24-Bit 2-/4-Channel ΔΣ ADC with Easy Drive Input Current Cancellation |
| Seiten / Seite | 38 / 10 — Typical perFormance characTerisTics. Offset Error. PSRR vs Frequency at … |
| Dateiformat / Größe | PDF / 619 Kb |
| Dokumentensprache | Englisch |
Typical perFormance characTerisTics. Offset Error. PSRR vs Frequency at VCC. vs VCC (2x Speed Mode). vs VREF (2x Speed Mode)
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LTC2492
Typical perFormance characTerisTics Offset Error Offset Error PSRR vs Frequency at VCC vs VCC (2x Speed Mode) vs VREF (2x Speed Mode) (2x Speed Mode)
250 240 0 VREF = 2.5V V V CC = 5V CC = 4.1V DC VIN = 0V 230 VIN = 0V –20 REF+ = 2.5V VIN(CM) = GND V REF– = GND IN(CM) = GND 200 fO = GND f IN+ = GND 220 O = GND TA = 25°C T –40 IN– = GND A = 25°C f 210 O = GND 150 –60 TA = 25°C 200 –80 100 190 REJECTION (dB) OFFSET ERROR (µV) OFFSET ERROR (µV) –100 180 50 –120 170 0 160 –140 2 2.5 3 3.5 4 4.5 5 5.5 0 1 2 3 4 5 1 10 100 1k 10k 100k 1M VCC (V) V FREQUENCY AT V REF (V) CC (Hz) 2492 G34 2492 G35 2492 G36
PSRR vs Frequency at VCC PSRR vs Frequency at VCC (2x Speed Mode) (2x Speed Mode)
0 0 VCC = 4.1V DC ±1.4V VCC = 4.1V DC ±0.7V REF+ = 2.5V REF+ = 2.5V –20 –20 REF– = GND REF– = GND IN+ = GND IN+ = GND –40 IN– = GND –40 IN– = GND fO = GND fO = GND –60 TA = 25°C –60 TA = 25°C –80 –80 REJECTION (dB) RREJECTION (dB) –100 –100 –120 –120 –140 –140 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) 2492 G37 2492 G38 2492fe 10 For more information www.linear.com/LTC2492 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics (Normal Speed) Pin Configuration Electrical Characteristics (2x Speed) Converter Characteristics Analog Input and Reference Digital Inputs and Digital Outputs Power Requirements Digital Inputs and Digital Outputs Typical Performance Characteristics Pin Functions Functional Block Diagram Test Circuits Timing Diagrams Applications Information Package Description Revision History Typical Application Related Parts
Typical perFormance characTerisTics Offset Error Offset Error PSRR vs Frequency at VCC vs VCC (2x Speed Mode) vs VREF (2x Speed Mode) (2x Speed Mode)
250 240 0 VREF = 2.5V V V CC = 5V CC = 4.1V DC VIN = 0V 230 VIN = 0V –20 REF+ = 2.5V VIN(CM) = GND V REF– = GND IN(CM) = GND 200 fO = GND f IN+ = GND 220 O = GND TA = 25°C T –40 IN– = GND A = 25°C f 210 O = GND 150 –60 TA = 25°C 200 –80 100 190 REJECTION (dB) OFFSET ERROR (µV) OFFSET ERROR (µV) –100 180 50 –120 170 0 160 –140 2 2.5 3 3.5 4 4.5 5 5.5 0 1 2 3 4 5 1 10 100 1k 10k 100k 1M VCC (V) V FREQUENCY AT V REF (V) CC (Hz) 2492 G34 2492 G35 2492 G36
PSRR vs Frequency at VCC PSRR vs Frequency at VCC (2x Speed Mode) (2x Speed Mode)
0 0 VCC = 4.1V DC ±1.4V VCC = 4.1V DC ±0.7V REF+ = 2.5V REF+ = 2.5V –20 –20 REF– = GND REF– = GND IN+ = GND IN+ = GND –40 IN– = GND –40 IN– = GND fO = GND fO = GND –60 TA = 25°C –60 TA = 25°C –80 –80 REJECTION (dB) RREJECTION (dB) –100 –100 –120 –120 –140 –140 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) 2492 G37 2492 G38 2492fe 10 For more information www.linear.com/LTC2492 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics (Normal Speed) Pin Configuration Electrical Characteristics (2x Speed) Converter Characteristics Analog Input and Reference Digital Inputs and Digital Outputs Power Requirements Digital Inputs and Digital Outputs Typical Performance Characteristics Pin Functions Functional Block Diagram Test Circuits Timing Diagrams Applications Information Package Description Revision History Typical Application Related Parts