Datasheet LTC1090 (Analog Devices) - 7

LTC1090
W U TYPICAL PERFOR A CE CHARACTERISTICS Supply Current vs Supply Voltage Supply Current vs Temperature Reference Current vs Temperature
6 1.4 0.6 REF +OPEN VREF = 5V ACLK = 2MHz 5 1.2 0.5 CS = VCC (mA) (mA) TA = 25°C (mA) REF CC 4 CC 1.0 0.4 3 0.8 0.3 2 0.6 0.2 REF +OPEN SUPPLY CURRENT, I SUPPLY CURRENT, I ACLK = 2MHz 1 0.4 REFERENCE CURRENT, I 0.1 CS = 5V VCC = 5V 0 0.2 0 4 5 6 7 8 9 10 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 SUPPLY VOLTAGE, VCC (V) AMBIENT TEMPERATURE, TA (°C) AMBIENT TEMPERATURE, TA (°C) LTC1090 • TPC01 LTC1090 • TPC02 LTC1090 • TPC03
Unadjusted Offset Error vs Linearity Error vs Reference Change in Gain Error vs Reference Voltage Voltage Reference Voltage
10 1.25 ) 1.25 V V CC = 5V ) CC = 5V REF VCC = 5V ) 9 REF REF 8 1.0 1 1.0 1024 1 1 7 1024 1024 6 0.75 0.75 5 VOS = 1mV 4 0.5 0.5 3 2 0.25 0.25 OFFSET ERROR (LSBs = • V 1 LINEARITY ERROR (LSBs = • V VOS = 0.5mV CHANGE IN GAIN ERROR (LSBs = • V 0 0 0 0.2 1.0 5.0 0 1 2 3 4 5 0 1 2 3 4 5 REFERENCE VOLTAGE, VREF (V) REFERENCE VOLTAGE, VREF (V) REFERENCE VOLTAGE, VREF (V) LTC1090 • TPC04 LTC1090 • TPC05 LTC1090 • TPC06
Change in Gain Error vs Supply Offset Error vs Supply Voltage Linearity Error vs Supply Voltage Voltage
1.25 1.25 0.5 VREF = 4V VREF = 4V VREF = 4V ACLK = 2MHz ACLK = 2MHz ACLK = 2MHz V 1.0 OS = 1.25mV AT VCC = 5V 1.0 0.25 0.75 0.75 0 0.5 0.5 – 0.25 OFFSET ERROR (LSBs) LINEARITY ERROR (LSBs) 0.25 0.25 CHANGE IN GAIN ERROR (LSBs) – 0.5 0 0 4 5 6 7 8 9 10 4 5 6 7 8 9 10 4 5 6 7 8 9 10 SUPPLY VOLTAGE, VCC (V) SUPPLY VOLTAGE, VCC (V) SUPPLY VOLTAGE, VCC (V) LTC1090 • TPC07 LTC1090 • TPC08 LTC1090 • TPC09 1090fc 7