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201-000795 Datasheet(PDF) 4 Page - Texas Instruments |
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201-000795 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 34 page DDC232 SBAS331D – AUGUST 2004 – REVISED APRIL 2010 www.ti.com ELECTRICAL CHARACTERISTICS (continued) At TA = +25°C, AVDD = +5V, DVDD = +3.0V, VREF = +4.096V, tINT = 333ms for DDC232C or 166ms for DDC232CK, Range 7, and continuous mode operation, unless otherwise noted. DDC232C DDC232CK PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNIT PERFORMANCE OVER TEMPERATURE Offset Drift ±0.5 5 (8) ±0.5 5 (8) ppm of FSR/°C Offset Drift Stability ±0.2 2 (8) ±0.2 2 (8) ppm of FSR/minute DC Bias Voltage Drift (9) ±3 ±3 mV/°C Input Bias Current Drift TA = +25°C to +45°C 0.01 1 (8) 0.01 1 (8) pA/°C Range Drift (10) 25 50 25 50 ppm/°C Range Drift Match (11) ±5 ±5 ppm/°C REFERENCE Voltage 4.000 4.096 4.200 4.000 4.096 4.200 V Input Current (12) Average Value with tINT = 333ms 325 mA Average Value with tINT = 166.5ms 650 mA DIGITAL INPUT/OUTPUT Logic Levels VIH 0.8 DVDD DVDD + 0.1 0.8 DVDD DVDD + 0.1 V VIL –0.1 0.2 DVDD –0.1 0.2 DVDD V VOH IOH = –500mA DVDD – 0.4 DVDD – 0.4 V VOL IOL = 500mA 0.4 0.4 V Input Current (IIN) 0 < VIN < DVDD ±10 ±10 mA Data Format (13) Straight Binary Straight Binary POWER-SUPPLY REQUIREMENTS Analog Power-Supply Voltage (AVDD) 4.75 5.0 5.25 4.9 5.0 5.1 V Digital Power-Supply Voltage (DVDD) 2.7 3.0 3.6 2.7 3.0 3.6 V Supply Current Analog Current 41 60 mA Digital Current 3.7 8.0 mA Total Power Dissipation 224 288 290 mW Per Channel Power Dissipation 7 9 10 mW/Channel (8) Ensured by design, not production tested. (9) Voltage produced by the DDC232 at its input that is applied to the sensor. (10) Range drift does not include external reference drift. (11) Matching between side A and side B of the same input. (12) Input reference current decreases with increasing tINT (see the Voltage Reference section, page 10). (13) Data format is Straight Binary with a small offset. The number of bits in the output word is controlled by the Format bit. 4 Submit Documentation Feedback Copyright © 2004–2010, Texas Instruments Incorporated Product Folder Link(s): DDC232 |
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