Datasheet LTC1099 (Analog Devices) - 4

LTC1099
W U TYPICAL PERFOR A CE CHARACTERISTICS Linearity Error vs Reference Supply Current vs Temperature VOS Error vs Reference Voltage Voltage
20 4 1.0 TA = 25°C TA = 25°C 18 T 0.9 C = 2.5µs TC = 2.5µs 16 0.8 3 (mA) 14 0.7 CC 12 0.6 10 2 0.5 8 ERROR (LSB) 0.4 OS 6 V 0.3 1 LINEARITY ERROR (LBS) SUPPLY CURRENT, I 4 0.2 2 0.1 0 0 0 – 50 – 25 0 25 50 75 100 125 0 1 2 3 4 5 0 1 2 3 4 5 AMBIENT TEMPERATURE, TA (°C) REFERENCE VOLTAGE, VREF (V) REFERENCE VOLTAGE, VREF (V) 1099 G01 1099 G02 1099 G03
Total Error vs Reference Voltage Conversion Time vs REXT Accuracy vs Conversion Time
4 100 1.0 TA = 25°C TA = 25°C TA = 25°C TC = 2.5µs 0.8 3 µs) RESISTOR BETWEEN 10 PIN 19 AND VCC 0.6 2 RESISTOR BETWEEN 0.4 1.0 PIN 19 AND GND TOTAL ERROR (LSB) 1 CONVERSION TIME ( 0.2 TOTAL UNADJUSTED ERROR (LBS) 0 0.1 0 0 1 2 3 4 5 10 100 1000 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 REFERENCE VOLTAGE, VREF (V) RESISTANCE (kΩ) CONVERSION TIME (µs) 1099 G05 1099 G04 1099 G06
Signal-to-Noise Ratio (SNR) vs Conversion Time vs Temperature Input Frequency
°C 1.8 4.5 – 36 TA = 25°C – 38 TC = 2.5µs 1.6 4.0 CONVERSION TIME ( – 40 1.4 3.5 – 42 1.2 3.0 – 44 – 46 1.0 2.5 µs) – 48 0.8 2.0 SIGNAL-TO-NOISE RATIO, SNR (dB) – 50 CONVERSION TIME/CONVERSION TIME AT 25 0.6 1.5 – 52 –50 –25 0 25 50 75 100 125 1 10 100 AMBIENT TEMPERATURE, TA (°C) INPUT FREQUENCY (kHz) 1099 G07 1099 G08 4