Datasheet LTC1090 (Analog Devices) - 8

LTC1090
W U TYPICAL PERFOR A CE CHARACTERISTICS Change in Offset Error Change in Linearity Error Change in Gain Error vs Temperature vs Temperature vs Temperature
0.6  (LSBs) 0.6 0.6 V V  (LSBs) CC = 5V CC = 5V VCC = 5V V V REF = 5V REF = 5V  (LSBs) VREF = 5V 0.5 0.5 ACLK = 2MHz ACLK = 2MHz 0.5 ACLK = 2MHz OFFSET LINEARITY GAIN ∆ ∆ 0.4 0.4 ∆ 0.4 0.3 0.3 0.3 0.2 0.2 0.2 0.1 0.1 0.1 0 0 MAGNITUDE OF GAIN CHANGE, 0 MAGNITUDE OF OFFSET CHANGE, –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, T MAGNITUDE OF LINEARITY CHANGE, AMBIENT TEMPERATURE, T A (°C) A (°C) AMBIENT TEMPERATURE, TA (°C) LTC1090 • TPC10 LTC1090 • TPC11 LTC1090 • TPC12
Maximum Conversion Clock Rate Maximum Conversion Clock Rate Maximum Conversion Clock Rate vs Temperature vs Reference Voltage vs Supply Voltage
6 5 7 VCC = 5V VREF = 4V TA = 25°C 6 TA = 25°C 5 4 5 4 3 4 3 3 2 2 2 1 1 1 MAXIMUM ACLK FREQUENCY* (MHz) VCC = 5V MAXIMUM ACLK FREQUENCY* (MHz) MAXIMUM ACLK FREQUENCY* (MHz) VREF = 5V 0 0 0 –50 –25 0 25 50 75 100 125 0 1 2 3 4 5 4 5 6 7 8 9 10 AMBIENT TEMPERATURE, TA (°C) REFERENCE VOLTAGE, VREF (V) SUPPLY VOLTAGE, VCC (V) LTC1090 • TPC13 LTC1090 • TPC14 LTC1090 • TPC15
Maximum Conversion Clock Rate Maximum Filter Resistor vs Cycle Sample-and-Hold Acquisition vs Source Resistance Time Time vs Source Resistance
5 100k 10 V V CC = 5V RFILTER REF = 5V s) V V + V REF = 5V IN µ CC = 5V 4 T T A = 25°C C A = 25°C ) FILTER ≥ 1µF 10k Ω 0 TO 5V INPUT STEP _ ** ( 3 FILTER 1 V 1k IN +INPUT 2 R + SOURCE V + IN –INPUT 100 MAXIMUM R 1 R – SOURCE _ MAXIMUM ACLK FREQUENCY* (MHz) S & H ACQUISITION TIME TO 0.1% ( 0 10 0.1 10 100 1k 10k 10 100 1000 10k 100 1k 10k CYCLE TIME, t R + SOURCE (Ω) R – CYC (µs) SOURCE (Ω) LTC1090 • TPC18 LTC1090 • TPC16 LTC1090 • TPC17 *MAXIMUM ACLK FREQUENCY REPRESENTS THE ACLK FREQUENCY AT WHICH A 0.1LSB **MAXIMUM RFILTER REPRESENTS THE FILTER RESISTOR VALVE AT WHICH A 0.1LSB SHIFT SHIFT IN THE ERROR AT ANY CODE TRANSITION FROM ITS 2MHz VALVE IS FIRST DETECTED. CHANGE IN FULL SCALE ERROR FROM ITS VALUE AT RFILTER = 0 IS FIRST DETECTED.1090fc 8