Datasheet LTC1290 (Analog Devices) - 6
Hersteller | Analog Devices |
Beschreibung | Single Chip 12-Bit Data Acquisition System |
Seiten / Seite | 32 / 6 — TYPICAL PERFOR A CE CH. ARA TERISTICS. Unadjusted Offset Voltage vs. … |
Dateiformat / Größe | PDF / 633 Kb |
Dokumentensprache | Englisch |
TYPICAL PERFOR A CE CH. ARA TERISTICS. Unadjusted Offset Voltage vs. Supply Current vs Supply Voltage
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LTC1290
W U TYPICAL PERFOR A CE CH C ARA TERISTICS Unadjusted Offset Voltage vs Supply Current vs Supply Voltage Supply Current vs Temperature Reference Voltage
26 10 0.9 ACLK = 4MHz ACLK = 4MHz VCC = 5V ) T 0.8 A = 25°C 9 VCC = 5V 22 REF 0.7 (mA) (mA) 8 1 CC 18 CC 4096 0.6 7 14 0.5 VOS = 0.25mV 6 0.4 10 5 0.3 SUPPLY CURRENT, I SUPPLY CURRENT, I V 6 OS = 0.125mV 4 OFFSET ERROR (LSB = • V 0.2 2 3 0.1 4 6 8 10 –50 –30 –10 10 30 50 70 90 110 130 1 2 3 4 5 SUPPLY VOLTAGE, VCC (V) AMBIENT TEMPERATURE, TA (°C) REFERENCE VOLTAGE, VREF (V) 1290 • TPC01 LT1290 • TPC02 1290 • TPC03
Change in Linearity vs Reference Change in Gain vs Reference Voltage Voltage Change in Offset vs Temperature
1.25 ) 0 0.5 ) VCC = 5V REF ⏐ (LSB) ACLK = 4MHz REF VCC = 5V 1.00 –0.1 1 0.4 VREF = 5V 4096 OFFSET 1 4096 ⏐∆ –0.2 0.75 0.3 0.50 –0.3 0.2 0.25 –0.4 0.1 LINEARITY ERROR (LSB = • V VCC = 5V CHANGE IN GAIN ERROR (LSB = • V 0 –0.5 0 0 1 2 3 4 5 1 2 3 4 5 MAGNITUDE OF OFFSET CHANGE –50 –30 –10 10 30 50 70 90 110 130 REFERENCE VOLTAGE, VREF (V) REFERENCE VOLTAGE, VREF (V) AMBIENT TEMPERATURE, TA (°C) 1290 • TPC04 1290 • TPC05 1290 • TPC06
Change in Linearity Error vs Change in Gain Error vs Maximum ACLK Frequency vs Temperature Temperature Source Resistance
0.6 0.5 ⏐ (LSB) 5 ACLK = 4MHz V ACLK = 4MHz CC = 5V V V ⏐ (LSB) VCC = 5V REF = 5V 0.5 CC = 5V T 0.4 V 4 V REF = 5V A = 25°C REF = 5V LINEARITY GAIN ⏐∆ ⏐∆ 0.4 0.3 3 VIN + INPUT R 0.3 SOURCE– – INPUT 0.2 2 0.2 0.1 1 0.1 MAXIMUM ACLK FREQUENCY* (MHz) MAGNITUDE OF GAIN CHANGE 0 0 0 –50 –30 –10 10 30 50 70 90 110 130 –50 –30 –10 10 30 50 70 90 110 130 100 1k 10 k 100k MAGNITUDE OF LINEARITY CHANGE AMBIENT TEMPERATURE, T AMBIENT TEMPERATURE, T R A (°C) A (°C) SOURCE (Ω) 1290 • TPC09 1290 • TPC08 1290 • TPC07 * MAXIMUM ACLK FREQUENCY REPRESENTS THE ACLK FREQUENCY AT WHICH A 0.1LSB SHIFT IN THE ERROR AT ANY CODE TRANSITION FROM ITS 4MHz VALUE IS FIRST DETECTED. 1290fe 6