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AD670SD Datasheet(PDF) 4 Page - Analog Devices |
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AD670SD Datasheet(HTML) 4 Page - Analog Devices |
4 / 13 page Model AD670A AD670B AD670S Min Typ Max Min Typ Max Min Typ Max Units OPERATING TEMPERATURE RANGE –40 +85 –40 +85 –55 +125 °C RESOLUTION 8 8 8 Bit CONVERSION TIME 10 10 10 µs RELATIVE ACCURACY 1/2 1/4 1/2 LSB TMIN to TMAX 1/2 1/2 1 LSB DIFFERENTIAL LINEARITY ERROR 1 TMIN to TMAX GUARANTEED NO MISSING CODES ALL GRADES GAIN ACCURACY @ +25 °C 1.5 0.75 1.5 LSB TMIN to TMAX 2.5 1.5 2.5 LSB UNIPOLAR ZERO ERROR @ +25 °C 1.0 0.5 1.0 LSB TMIN to TMAX 2.0 1.0 2.0 LSB BIPOLAR ZERO ERROR @ +25 °C 1.0 0.5 1.0 LSB TMIN to TMAX 2.0 1.0 2.0 LSB ANALOG INPUT RANGES DIFFERENTIAL ( –VIN to +VIN) Low Range 0 to +255 0 to +255 0 to +255 mV –128 to +127 –128 to +127 –128 to +127 mV High Range 0 to +2.55 0 to +2.55 0 to +2.55 V –1.28 to +1.27 –1.28 to +1.27 –1.28 to +1.27 V ABSOLUTE (Inputs to Power GND) Low Range TMIN to TMAX –0.150 VCC – 3.5 –0.150 VCC – 3.5 –0.150 VCC – 3.5 V High Range TMIN to TMAX –1.50 VCC –1.50 VCC –1.50 VCC V BIAS CURRENT (255 mV RANGE) TMIN to TMAX 200 500 200 500 200 750 nA OFFSET CURRENT (255 mV RANGE) TMIN to TMAX 40 200 40 200 40 200 nA 2.55 V RANGE INPUT RESISTANCE 8.0 12.0 8.0 12.0 8.0 12.0 k Ω 2.55 V RANGE FULL-SCALE MATCH + AND – INPUT ±1/2 ±1/2 ±1/2 LSB COMMON-MODE REJECTION RATIO (255 mV RANGE) 11 1 LSB COMMON-MODE REJECTION RATIO (2.55 V RANGE) 1 1 1 LSB POWER SUPPLY Operating Range 4.5 5.5 4.5 5.5 4.75 5.5 V Current ICC 30 45 30 45 30 45 mA Rejection Ratio TMIN to TMAX 0.015 0.015 0.015 % of FS/% DIGITAL OUTPUTS SINK CURRENT (VOUT = 0.4 V) TMIN to TMAX 1.6 1.6 1.6 mA SOURCE CURRENT (VOUT = 2.4 V) TMIN to TMAX 0.5 0.5 0.5 mA THREE-STATE LEAKAGE CURRENT 40 40 40 µA OUTPUT CAPACITANCE 5 5 5 pF DIGITAL INPUT VOLTAGE VINL 0.8 0.8 0.7 V VINH 2.0 2.0 2.0 V DIGITAL INPUT CURRENT (0 ≤ V IN ≤ +5 V) IINL –100 –100 –100 µA IINH +100 +100 + 100 µA INPUT CAPACITANCE 10 10 10 pF NOTES 1Tested at V CC = 4.5 V, 5.0 V and 5.5 V for A, B grades; 4.75 V, 5.0 V and 5.5 V for S grade. Specifications shown in boldface are tested on all production units at final electrical test. Results from those tests are used to calculate outgoing quality levels. All min and max specifications are guaranteed, although only those shown in boldface are tested on all production units. Specifications subject to change without notice. AD670 REV. A –3– |
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