Datasheet LTC1287 (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | 3V Single Chip 12-Bit Data Acquisition System |
| Pages / Page | 16 / 4 — TYPICAL PERFOR A CE CH. ARA TERISTICS. Unadjusted Offset Voltage vs. … |
| File Format / Size | PDF / 328 Kb |
| Document Language | English |
TYPICAL PERFOR A CE CH. ARA TERISTICS. Unadjusted Offset Voltage vs. Supply Current vs Supply Voltage
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LTC1287
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
2.8 1.9 0.9 V CLK = 500kHz CLK = 500kHz CC = 3V 2.6 0.8 TA = 25°C V 1.8 CC = 3V ) 2.4 0.7 REF 2.2 1.7 × V VOS = 0.250mV 0.6 2.0 0.5 1.8 1.6 0.4 1.6 1.5 0.3 1.4 VOS = 0.125mV SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) 0.2 1.2 OFFSET (LSB = 1/4096 1.4 0.1 1.0 0.8 1.3 0 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 –40 –25 –10 5 20 35 50 65 80 95 0 0.5 1.0 1.5 2.0 2.5 3.0 SUPPLY VOLTAGE (V) TEMPERATURE (°C) REFERENCE VOLTAGE (V) LTC1287 G1 LTC1287 G2 LTC1287 G3
Change in Linearity vs Reference Change in Gain vs Reference Voltage Voltage Change in Offset vs Temperature
) 0.5 0 0.5 REF VCC = 3V ) VCC = 3V VCC = 3V × V REF VREF = 2.5V 0.4 × V –0.1 0.4 CLK = 500kHz 0.3 –0.2 0.3 0.2 –0.3 0.2 0.1 –0.4 0.1 CHANGE IN GAIN (LSB = 1/4096 MAGNITUDE OF OFFSET CHANGE (LSB) CHANGE IN LINEARITY (LSB = 1/4096 0 –0.5 0 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0.5 1.0 1.5 2.0 2.5 3.0 –40 – 20 0 20 40 60 80 100 REFERENCE VOLTAGE (V) REFERENCE VOLTAGE (V) AMBIENT TEMPERATURE (°C) LTC1287 G4 LTC1287 G5 LTC1287 G6
Change in Linearity vs Temperature Change in Gain vs Temperature DOUT Delay Time vs Temperature
0.5 0.5 350 VCC = 3V V V CC = 3V CC = 3V VREF = 2.5V VREF = 2.5V 300 0.4 CLK = 500kHz 0.4 CLK = 500kHz ↓ (ns) MSB-FIRST DATA 250 0.3 0.3 200 LSB-FIRST DATA 0.2 150 0.2 100 DELAY TIME FROM CLK 0.1 0.1 OUT 50 MAGNITUDE OF GAIN CHANGE (LSB) D MAGNITUDE OF LINEARITY CHANGE (LSB) 0 0 0 – 40 – 20 0 20 40 60 80 100 –40 – 20 0 20 40 60 80 100 –40 –20 0 20 40 60 80 100 AMBIENT TEMPERATURE (°C) AMBIENT TEMPERATURE (°C) AMBIENT TEMPERATURE (°C) LTC1287 G7 LTC1287 G8 LTC1287 G9 1287fa 4
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
2.8 1.9 0.9 V CLK = 500kHz CLK = 500kHz CC = 3V 2.6 0.8 TA = 25°C V 1.8 CC = 3V ) 2.4 0.7 REF 2.2 1.7 × V VOS = 0.250mV 0.6 2.0 0.5 1.8 1.6 0.4 1.6 1.5 0.3 1.4 VOS = 0.125mV SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) 0.2 1.2 OFFSET (LSB = 1/4096 1.4 0.1 1.0 0.8 1.3 0 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 –40 –25 –10 5 20 35 50 65 80 95 0 0.5 1.0 1.5 2.0 2.5 3.0 SUPPLY VOLTAGE (V) TEMPERATURE (°C) REFERENCE VOLTAGE (V) LTC1287 G1 LTC1287 G2 LTC1287 G3
Change in Linearity vs Reference Change in Gain vs Reference Voltage Voltage Change in Offset vs Temperature
) 0.5 0 0.5 REF VCC = 3V ) VCC = 3V VCC = 3V × V REF VREF = 2.5V 0.4 × V –0.1 0.4 CLK = 500kHz 0.3 –0.2 0.3 0.2 –0.3 0.2 0.1 –0.4 0.1 CHANGE IN GAIN (LSB = 1/4096 MAGNITUDE OF OFFSET CHANGE (LSB) CHANGE IN LINEARITY (LSB = 1/4096 0 –0.5 0 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0.5 1.0 1.5 2.0 2.5 3.0 –40 – 20 0 20 40 60 80 100 REFERENCE VOLTAGE (V) REFERENCE VOLTAGE (V) AMBIENT TEMPERATURE (°C) LTC1287 G4 LTC1287 G5 LTC1287 G6
Change in Linearity vs Temperature Change in Gain vs Temperature DOUT Delay Time vs Temperature
0.5 0.5 350 VCC = 3V V V CC = 3V CC = 3V VREF = 2.5V VREF = 2.5V 300 0.4 CLK = 500kHz 0.4 CLK = 500kHz ↓ (ns) MSB-FIRST DATA 250 0.3 0.3 200 LSB-FIRST DATA 0.2 150 0.2 100 DELAY TIME FROM CLK 0.1 0.1 OUT 50 MAGNITUDE OF GAIN CHANGE (LSB) D MAGNITUDE OF LINEARITY CHANGE (LSB) 0 0 0 – 40 – 20 0 20 40 60 80 100 –40 – 20 0 20 40 60 80 100 –40 –20 0 20 40 60 80 100 AMBIENT TEMPERATURE (°C) AMBIENT TEMPERATURE (°C) AMBIENT TEMPERATURE (°C) LTC1287 G7 LTC1287 G8 LTC1287 G9 1287fa 4
