Datasheet LTC1283 (Analog Devices) - 5
| Hersteller | Analog Devices |
| Beschreibung | 3V Single Chip 10-Bit Data Acquisition System |
| Seiten / Seite | 24 / 5 — TYPICAL PERFOR A CE CH. ARA TERISTICS. Change in Full-Scale Error. … |
| Dateiformat / Größe | PDF / 352 Kb |
| Dokumentensprache | Englisch |
TYPICAL PERFOR A CE CH. ARA TERISTICS. Change in Full-Scale Error. Linearity Error. Change in Offset Error. vs Reference Voltage
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LTC1283
W U TYPICAL PERFOR A CE CH C ARA TERISTICS Change in Full-Scale Error Linearity Error Change in Offset Error vs Reference Voltage vs Reference Voltage vs Temperature
2.0 1.0 0.5 V ) V CC = 3V CC = 3V ⎪ (LSB) VCC = 3V 1.75 0.9 V ACLK = 500kHz REF = 2.5V REF VREF = 2.5V × V 0.8 0.4 ACLK = 500kHz 1.5 OFFSET 1 0.7 ⎪Δ 1024 1.25 0.6 0.3 1.0 0.5 0.2 0.75 0.4 0.3 0.5 0.2 0.1 MAXIMUM ACLK FREQUENCY* (MHz) 0.25 0.1 LINEARITY ERROR (LSBs = 0 0 0 –50 –25 0 25 50 75 100 125 0 0.5 1.0 1.5 2.0 2.5 MAGNITUDE OF OFFSET CHANGE, –50 –25 0 25 50 75 100 125 AMBIENT TEMPERATURE (˚C) REFERENCE VOLTAGE (V) AMBIENT TEMPERATURE (°C) LTC1283 • G09 LTC1283 • G05 LTC1283 • G06
Change in Linearity Error Change in Gain Error Maximum Conversion Clock Rate vs Temperature vs Temperature vs Temperature
⎪ (LSB) 0.5 0.5 2.0 VCC = 3V VCC = 3V VCC = 3V VREF = 2.5V ⎪ (LSB) VREF = 2.5V 1.75 VREF = 2.5V 0.4 ACLK = 500kHz 0.4 ACLK = 500kHz LINEARITY GAIN 1.5 ⎪Δ ⎪Δ 1.25 0.3 0.3 1.0 0.2 0.2 0.75 0.5 0.1 0.1 MAXIMUM ACLK FREQUENCY* (MHz) 0.25 0 MAGNITUDE OF GAIN CHANGE, 0 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 MAGNITUDE OF LINEARITY CHANGE, AMBIENT TEMPERATURE (°C) TEMPERATURE (°C) AMBIENT TEMPERATURE (˚C) LTC1283 • G07 LTC1283 • G08 LTC1283 • G09
Maximum Conversion Clock Rate Maximum Conversion Clock Rate Maximum Filter Resistor vs Reference Voltage vs Source Resistance vs Cycle Time
1500 1500 100k V VCC = 3V CC = 3V R V FILTER CC = 3V V + 1250 IN 1250 CFILTER ≥ 1μF ) Ω 10k – 1000 1000 ** ( 750 750 FILTER 1k V + INPUT IN 500 500 – INPUT 100 MAXIMUM R 250 250 R – MAXIMUM ACLK FREQUENCY* (kHz) MAXIMUM ACLK FREQUENCY* (kHz) SOURCE 0 0 10 0 0.5 1.0 1.5 2.0 2.5 1 10 100 10 100 1000 10000 REFERENCE VOLTAGE (V) RSOURCE (kΩ) CYCLE TIME (μs) LTC1283 • G11 LTC1283 • G10 LTC1283 • G12 *Maximum ACLK frequency represents the ACLK frequency at which a 0.1LSB shift in the error at **Maximum RFILTER represents the filter resistor value at which a 0.1LSB change in full-scale error any code transition from its 100kHz value is first detected. from its value at RFILTER = 0 is first detected. 1283fb 5
W U TYPICAL PERFOR A CE CH C ARA TERISTICS Change in Full-Scale Error Linearity Error Change in Offset Error vs Reference Voltage vs Reference Voltage vs Temperature
2.0 1.0 0.5 V ) V CC = 3V CC = 3V ⎪ (LSB) VCC = 3V 1.75 0.9 V ACLK = 500kHz REF = 2.5V REF VREF = 2.5V × V 0.8 0.4 ACLK = 500kHz 1.5 OFFSET 1 0.7 ⎪Δ 1024 1.25 0.6 0.3 1.0 0.5 0.2 0.75 0.4 0.3 0.5 0.2 0.1 MAXIMUM ACLK FREQUENCY* (MHz) 0.25 0.1 LINEARITY ERROR (LSBs = 0 0 0 –50 –25 0 25 50 75 100 125 0 0.5 1.0 1.5 2.0 2.5 MAGNITUDE OF OFFSET CHANGE, –50 –25 0 25 50 75 100 125 AMBIENT TEMPERATURE (˚C) REFERENCE VOLTAGE (V) AMBIENT TEMPERATURE (°C) LTC1283 • G09 LTC1283 • G05 LTC1283 • G06
Change in Linearity Error Change in Gain Error Maximum Conversion Clock Rate vs Temperature vs Temperature vs Temperature
⎪ (LSB) 0.5 0.5 2.0 VCC = 3V VCC = 3V VCC = 3V VREF = 2.5V ⎪ (LSB) VREF = 2.5V 1.75 VREF = 2.5V 0.4 ACLK = 500kHz 0.4 ACLK = 500kHz LINEARITY GAIN 1.5 ⎪Δ ⎪Δ 1.25 0.3 0.3 1.0 0.2 0.2 0.75 0.5 0.1 0.1 MAXIMUM ACLK FREQUENCY* (MHz) 0.25 0 MAGNITUDE OF GAIN CHANGE, 0 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 MAGNITUDE OF LINEARITY CHANGE, AMBIENT TEMPERATURE (°C) TEMPERATURE (°C) AMBIENT TEMPERATURE (˚C) LTC1283 • G07 LTC1283 • G08 LTC1283 • G09
Maximum Conversion Clock Rate Maximum Conversion Clock Rate Maximum Filter Resistor vs Reference Voltage vs Source Resistance vs Cycle Time
1500 1500 100k V VCC = 3V CC = 3V R V FILTER CC = 3V V + 1250 IN 1250 CFILTER ≥ 1μF ) Ω 10k – 1000 1000 ** ( 750 750 FILTER 1k V + INPUT IN 500 500 – INPUT 100 MAXIMUM R 250 250 R – MAXIMUM ACLK FREQUENCY* (kHz) MAXIMUM ACLK FREQUENCY* (kHz) SOURCE 0 0 10 0 0.5 1.0 1.5 2.0 2.5 1 10 100 10 100 1000 10000 REFERENCE VOLTAGE (V) RSOURCE (kΩ) CYCLE TIME (μs) LTC1283 • G11 LTC1283 • G10 LTC1283 • G12 *Maximum ACLK frequency represents the ACLK frequency at which a 0.1LSB shift in the error at **Maximum RFILTER represents the filter resistor value at which a 0.1LSB change in full-scale error any code transition from its 100kHz value is first detected. from its value at RFILTER = 0 is first detected. 1283fb 5