Datasheet LTC1291 (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | Single Chip 12-Bit Data Acquisition System |
| Pages / Page | 20 / 4 — TYPICAL PERFOR A CE CHAR C. A TERISTICS. Change in Offset vs Supply. … |
| File Format / Size | PDF / 342 Kb |
| Document Language | English |
TYPICAL PERFOR A CE CHAR C. A TERISTICS. Change in Offset vs Supply. Supply Current vs Supply Voltage
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LTC1291
W U TYPICAL PERFOR A CE CHAR C A TERISTICS Change in Offset vs Supply Supply Current vs Supply Voltage Supply Current vs Temperature Voltage
10 10 )) 0.5 CLK = 1MHz CLK = 1MHz REF T 0.4 A = 25°C 9 VCC = 5V (V 8 CC 0.3 8 0.2 6 0.1 7 0 4 6 –0.1 –0.2 SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) 5 2 –0.3 4 –0.4 0 3 CHANGE IN OFFSET (LSB = 1/4096 • V –0.5 4 5 6 –50 –30 –10 10 30 50 70 90 110 130 4.0 4.5 5.0 5.5 6.0 SUPPLY VOLTAGE (V) AMBIENT TEMPERATURE (°C) SUPPLY VOLTAGE (V) 1291 G01 1291 G02 1291 G03
Change in Linearity vs Supply Change in Gain Error vs Supply Voltage Voltage Change in Offset vs Temperature
)) )) 0.5 REF 0.5 0.5 REF (V V (V 0.4 CC = 5V CC CLK = 1MHz CC 0.4 × V 0.3 0.4 0.2 0.3 0.1 0.3 0 0.2 –0.1 0.2 –0.2 0.1 –0.3 0.1 –0.4 MAGNITUDE OF OFFSET CHANGE (LSB) 0 –0.5 0 CHANGE IN LINEARITY (LSB = 1/4096 • V 4.0 4.5 5.0 5.5 6.0 4.0 CHANGE IN GAIN ERROR (LSB = 1/4096 4.5 5.0 5.5 6.0 –50 –25 0 25 50 75 100 125 SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) AMBIENT TEMPERATURE (°C) 1291 G04 1291 G05 1291 G06
Change in Linearity vs Minimum Clock Rate for Temperature Change in Gain vs Temperature 0.1 LSB Error
0.5 0.5 VCC = 5V VCC = 5V VCC = 5V CLK = 1MHz CLK = 1MHz 0.4 0.25 0.4 0.20 0.3 0.3 0.15 0.2 0.2 0.10 0.1 0.1 0.05 MAGNITUDE OF GAIN CHANGE (LSB) MINIMUM CLK FREQUENCY* (MHz) MAGNITUDE OF LINEARITY CHANGE (LSB) 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 AMBIENT TEMPERATURE (°C) AMBIENT TEMPERATURE (°C) AMBIENT TEMPERATURE (°C) 1291 G07 1291 G08 1291 G09 * AS THE CLK FREQUENCY IS DECREASED FROM 1MHz, MINIMUM CLK FREQUENCY (∆ERROR ≤ 0.1LSB) REPRESENTS THE FREQUENCY AT WHICH A 0.1LSB SHIFT IN ANY CODE TRANSITION FROM ITS 1MHz VALUE IS FIRST DETECTED 1291fa 4
W U TYPICAL PERFOR A CE CHAR C A TERISTICS Change in Offset vs Supply Supply Current vs Supply Voltage Supply Current vs Temperature Voltage
10 10 )) 0.5 CLK = 1MHz CLK = 1MHz REF T 0.4 A = 25°C 9 VCC = 5V (V 8 CC 0.3 8 0.2 6 0.1 7 0 4 6 –0.1 –0.2 SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) 5 2 –0.3 4 –0.4 0 3 CHANGE IN OFFSET (LSB = 1/4096 • V –0.5 4 5 6 –50 –30 –10 10 30 50 70 90 110 130 4.0 4.5 5.0 5.5 6.0 SUPPLY VOLTAGE (V) AMBIENT TEMPERATURE (°C) SUPPLY VOLTAGE (V) 1291 G01 1291 G02 1291 G03
Change in Linearity vs Supply Change in Gain Error vs Supply Voltage Voltage Change in Offset vs Temperature
)) )) 0.5 REF 0.5 0.5 REF (V V (V 0.4 CC = 5V CC CLK = 1MHz CC 0.4 × V 0.3 0.4 0.2 0.3 0.1 0.3 0 0.2 –0.1 0.2 –0.2 0.1 –0.3 0.1 –0.4 MAGNITUDE OF OFFSET CHANGE (LSB) 0 –0.5 0 CHANGE IN LINEARITY (LSB = 1/4096 • V 4.0 4.5 5.0 5.5 6.0 4.0 CHANGE IN GAIN ERROR (LSB = 1/4096 4.5 5.0 5.5 6.0 –50 –25 0 25 50 75 100 125 SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) AMBIENT TEMPERATURE (°C) 1291 G04 1291 G05 1291 G06
Change in Linearity vs Minimum Clock Rate for Temperature Change in Gain vs Temperature 0.1 LSB Error
0.5 0.5 VCC = 5V VCC = 5V VCC = 5V CLK = 1MHz CLK = 1MHz 0.4 0.25 0.4 0.20 0.3 0.3 0.15 0.2 0.2 0.10 0.1 0.1 0.05 MAGNITUDE OF GAIN CHANGE (LSB) MINIMUM CLK FREQUENCY* (MHz) MAGNITUDE OF LINEARITY CHANGE (LSB) 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 AMBIENT TEMPERATURE (°C) AMBIENT TEMPERATURE (°C) AMBIENT TEMPERATURE (°C) 1291 G07 1291 G08 1291 G09 * AS THE CLK FREQUENCY IS DECREASED FROM 1MHz, MINIMUM CLK FREQUENCY (∆ERROR ≤ 0.1LSB) REPRESENTS THE FREQUENCY AT WHICH A 0.1LSB SHIFT IN ANY CODE TRANSITION FROM ITS 1MHz VALUE IS FIRST DETECTED 1291fa 4
