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ADS7869IPZTT Datasheet(PDF) 10 Page - Texas Instruments |
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ADS7869IPZTT Datasheet(HTML) 10 Page - Texas Instruments |
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10 / 66 page  Analog Motor Control FrontEnd with Simultaneous Sampling on Seven S/H Capacitors and Three 1MSPS, 12Bit, 12Channel ADCs ADS7869 SBAS253B − MAY 2003 − REVISED NOVEMBER 2004 www.ti.com 4 1.5 ELECTRICAL CHARACTERISTICS (continued) Over recommended operating free-air temperature range at –40 _C to +85_C, AVDD = 5V, BVDD = 3.3V, VREF = internal +2.5V, fCLK = 16MHz, fSAMPLE = 1 MSPS, unless otherwise noted. ADS7869I PARAMETER UNIT MAX TYP(1) MIN CONDITION Digital Inputs(3) Logic Family LVCMOS VIH High-Level Input Voltage BVDD = 3.6V 2 BVDD + 0.3 V VIL Low-Level Input Voltage BVDD = 2.7V −0.3 0.8 V IIN Input Current VI = BVDD to BGND ±50 nA CI Input Capacitance 5 pF Digital Outputs(3) Logic Family LVCMOS VOH High-Level Output Voltage BVDD = 2.7V, IOH = −100µA BVDD − 0.2 V VOL Low-Level Output Voltage BVDD = 2.7V, IOL = +100µA 0.2 V IOZ High-Impedance-State Output Current VI = BVDD to BGND ±50 nA CO Output Capacitance 5 pF CL Load Capacitance 30 pF Power Supply AVDD Analog Supply Voltage 4.5 5.5 V BVDD Buffer I/O Supply Voltage 2.7 5.5 V AIDD Analog Supply Current 45 50 mA BIDD Buffer I/O Supply Voltage 2 mA Power Dissipation 250 mW Reference Output VREF Reference Output Voltage −40 °C > t > +85°C 2.475 2.500 2.525 V VREF Reference Output Voltage at 25 °C 2.480 2.500 2.520 V dVREF/dT Reference Voltage Drift ±20 ppm/ °C PSRR Power-Supply Rejection Ratio 60 dB IOUT Output Current DC Current 1 µA ISC Short-Circuit Current 1 mA tON Turn-On Setting Time 100 µs Reference Input VIN Reference Input Voltage 2.475 2.5 2.525 V Input Resistance 100 M Ω Input Capacitance 5 pF Digital-to-Analog Converter Resolution 8 Bits Output Range IOUT = 0 0 2.49 V INL Integral Linearity Error ±1 LSB DNL Differential Linearity Error ±2 LSB Offset Error 0.5 1 LSB Full-Scale Error FS = Internal Reference Voltage − 1LSB ±1 % IOUT Output Current 0.5 µA Output Settling Time to 0.5LSB, no load capacitance 0.2 1 µs Position Sensor Sign Comparator Input Range Lower Voltage of Differential Inputs 0 AVDD − 1.8 V Offset Range ±5 ±30 mV Hysteresis 75 100 mV Delay Time 25 150 ns (1) All values are at TA = +25_C. (2) Applies for 5.0V nominal supply: 4.5V < BVDD < 5.5V. (3) Applies for 3.0V nominal supply: 2.7V < BVDD < 3.6V. |
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