Datasheet LTC2411, LTC2411-1 (Analog Devices) - 6
| Hersteller | Analog Devices |
| Beschreibung | 24-Bit No Latency ∆Σ™ ADC with Differential Input and Reference in MSOP |
| Seiten / Seite | 42 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS. Total Unadjusted Error. (VCC = 5V, … |
| Dateiformat / Größe | PDF / 598 Kb |
| Dokumentensprache | Englisch |
TYPICAL PERFORMANCE CHARACTERISTICS. Total Unadjusted Error. (VCC = 5V, VREF = 5V). (VCC = 5V, VREF = 2.5V)
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LTC2411/LTC2411-1
TYPICAL PERFORMANCE CHARACTERISTICS Total Unadjusted Error Total Unadjusted Error Total Unadjusted Error (VCC = 5V, VREF = 5V) (VCC = 5V, VREF = 2.5V) (VCC = 2.7V, VREF = 2.5V)
3 1.5 10 8 2 1.0 6 T ) A = 90°C ) T ) 4 1 0.5 A = 25°C REF T REF REF A = 25°C TA = –45°C 2 TA = 90°C 0 0 0 T –2 A = –45°C TUE (ppm OF V –1 V –0.5 CC = 5V TUE (ppm OF V VCC = 5V TUE (ppm OF V –4 VCC = 2.7V REF+ = 5V REF+ = 2.5V T T A = 90°C REF+ = 2.5V A = –45°C –6 –2 REF– = GND –1.0 REF– = GND REF– = GND VINCM = 2.5V VINCM = 2.5V –8 VINCM = 1.25V T F A = 25°C O = GND FO = GND FO = GND –3 –1.5 –10 –2.5 –2 –1.5 –1 –0.5 0 0.5 1 1.5 2 2.5 –1.25 –0.75 –0.25 0.25 0.75 1.25 –1.25 –0.75 –0.25 0.25 0.75 1.25 VIN (V) VIN (V) VIN (V) 2411 G01 2411 G02 2411 G03
Integral Nonlinearity Integral Nonlinearity Integral Nonlinearity (VCC = 5V, VREF = 5V) (VCC = 5V, VREF = 2.5V) (VCC = 2.7V, VREF = 2.5V)
3 1.5 10 VCC = 5V REF+ = 5V 8 2 REF– = GND 1.0 T 6 V A = 25°C INCM = 2.5V ) F ) T ) 4 1 O = GND TA = 90°C 0.5 A = 25°C REF REF T REF A = –45°C 2 TA = 90°C 0 T 0 0 A = –45°C –2 INL (ppm OF V –1 INL (ppm OF V –0.5 V INL (ppm OF V CC = 5V –4 VCC = 2.7V TA = –45°C REF+ = 2.5V TA = 90°C REF+ = 2.5V –6 T –2 –1.0 REF– = GND REF– = GND A = 25°C VINCM = 2.5V –8 VINCM = 1.25V FO = GND FO = GND –3 –1.5 –10 –2.5 –2 –1.5 –1 –0.5 0 0.5 1 1.5 2 2.5 –1.25 –0.75 –0.25 0.25 0.75 1.25 –1.25 –0.75 –0.25 0.25 0.75 1.25 VIN (V) VIN (V) VIN (V) 2411 G04 2411 G05 2411 G06
RMS Noise Noise Histogram Long Term ADC Readings vs Input Differential Voltage
16 1.0 0.5 10,000 CONSECUTIVE VCC = 5V, VREF = 5V, VIN = 0V, VINCM = 2.5V, 14 READINGS FO = GND, TA = 25°C, RMS NOISE = 0.29ppm VCC = 5V GAUSSIAN ) 0.5 ) 0.4 12 VREF = 5V DISTRIBUTION V REF IN = 0V m = –0.647ppm REF 0 10 VINCM = 2.5V σ = 0.287ppm F 0.3 O = GND T 8 A = 25°C –0.5 0.2 6 –1.0 TA = 25°C NUMBER OF READINGS (%) 4 V ADC READING (ppm OF V RMS NOISE (ppm OF V 0.1 CC = 5V –1.5 VREF = 5V 2 VINCM = 2.5V FO = GND 0 –2.0 0 –2.0 –1.5 –1.0 –0.5 0 0.5 1 0 5 10 15 20 25 30 35 40 45 50 55 60 –2.5 –2 –1.5 –1 –0.5 0 0.5 1 1.5 2 2.5 OUTPUT CODE (ppm OF VREF) TIME (HOURS) INPUT DIFFERENTIAL VOLTAGE (V) 2411 G07 2411 G08 2411 G09 2411fa 6 For more information www.linear.com/LTC2411
TYPICAL PERFORMANCE CHARACTERISTICS Total Unadjusted Error Total Unadjusted Error Total Unadjusted Error (VCC = 5V, VREF = 5V) (VCC = 5V, VREF = 2.5V) (VCC = 2.7V, VREF = 2.5V)
3 1.5 10 8 2 1.0 6 T ) A = 90°C ) T ) 4 1 0.5 A = 25°C REF T REF REF A = 25°C TA = –45°C 2 TA = 90°C 0 0 0 T –2 A = –45°C TUE (ppm OF V –1 V –0.5 CC = 5V TUE (ppm OF V VCC = 5V TUE (ppm OF V –4 VCC = 2.7V REF+ = 5V REF+ = 2.5V T T A = 90°C REF+ = 2.5V A = –45°C –6 –2 REF– = GND –1.0 REF– = GND REF– = GND VINCM = 2.5V VINCM = 2.5V –8 VINCM = 1.25V T F A = 25°C O = GND FO = GND FO = GND –3 –1.5 –10 –2.5 –2 –1.5 –1 –0.5 0 0.5 1 1.5 2 2.5 –1.25 –0.75 –0.25 0.25 0.75 1.25 –1.25 –0.75 –0.25 0.25 0.75 1.25 VIN (V) VIN (V) VIN (V) 2411 G01 2411 G02 2411 G03
Integral Nonlinearity Integral Nonlinearity Integral Nonlinearity (VCC = 5V, VREF = 5V) (VCC = 5V, VREF = 2.5V) (VCC = 2.7V, VREF = 2.5V)
3 1.5 10 VCC = 5V REF+ = 5V 8 2 REF– = GND 1.0 T 6 V A = 25°C INCM = 2.5V ) F ) T ) 4 1 O = GND TA = 90°C 0.5 A = 25°C REF REF T REF A = –45°C 2 TA = 90°C 0 T 0 0 A = –45°C –2 INL (ppm OF V –1 INL (ppm OF V –0.5 V INL (ppm OF V CC = 5V –4 VCC = 2.7V TA = –45°C REF+ = 2.5V TA = 90°C REF+ = 2.5V –6 T –2 –1.0 REF– = GND REF– = GND A = 25°C VINCM = 2.5V –8 VINCM = 1.25V FO = GND FO = GND –3 –1.5 –10 –2.5 –2 –1.5 –1 –0.5 0 0.5 1 1.5 2 2.5 –1.25 –0.75 –0.25 0.25 0.75 1.25 –1.25 –0.75 –0.25 0.25 0.75 1.25 VIN (V) VIN (V) VIN (V) 2411 G04 2411 G05 2411 G06
RMS Noise Noise Histogram Long Term ADC Readings vs Input Differential Voltage
16 1.0 0.5 10,000 CONSECUTIVE VCC = 5V, VREF = 5V, VIN = 0V, VINCM = 2.5V, 14 READINGS FO = GND, TA = 25°C, RMS NOISE = 0.29ppm VCC = 5V GAUSSIAN ) 0.5 ) 0.4 12 VREF = 5V DISTRIBUTION V REF IN = 0V m = –0.647ppm REF 0 10 VINCM = 2.5V σ = 0.287ppm F 0.3 O = GND T 8 A = 25°C –0.5 0.2 6 –1.0 TA = 25°C NUMBER OF READINGS (%) 4 V ADC READING (ppm OF V RMS NOISE (ppm OF V 0.1 CC = 5V –1.5 VREF = 5V 2 VINCM = 2.5V FO = GND 0 –2.0 0 –2.0 –1.5 –1.0 –0.5 0 0.5 1 0 5 10 15 20 25 30 35 40 45 50 55 60 –2.5 –2 –1.5 –1 –0.5 0 0.5 1 1.5 2 2.5 OUTPUT CODE (ppm OF VREF) TIME (HOURS) INPUT DIFFERENTIAL VOLTAGE (V) 2411 G07 2411 G08 2411 G09 2411fa 6 For more information www.linear.com/LTC2411