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ADS7828EB2K5 Arkusz danych(PDF) 4 Page - Texas Instruments |
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ADS7828EB2K5 Arkusz danych(HTML) 4 Page - Texas Instruments |
4 / 22 page ADS7828 4 SBAS181C www.ti.com NOTES: (1) LSB means Least Significant Bit. With VREF equal to 5.0V, 1LSB is 1.22mV. (2) THD measured out to the 9th-harmonic. ANALOG INPUT Full-Scale Input Scan Positive Input - Negative Input 0 VREF 0VREF V Absolute Input Range Positive Input –0.2 +VDD + 0.2 –0.2 +VDD + 0.2 V Negative Input –0.2 +0.2 –0.2 +0.2 V Capacitance 25 25 pF Leakage Current ±1 ±1 µA SYSTEM PERFORMANCE No Missing Codes 12 12 Bits Integral Linearity Error ±1.0 ±2 ±0.5 ±1LSB(1) Differential Linearity Error ±1.0 ±0.5 –1, +2 LSB Offset Error ±1.0 ±3 ±0.75 ±2 LSB Offset Error Match ±1 ±1 LSB Gain Error ±1.0 ±3 ±0.75 ±2 LSB Gain Error Match ±1 ±1 LSB Noise 33 33 µVRMS Power-Supply Rejection 82 82 dB SAMPLING DYNAMICS Throughput Frequency High Speed Mode: SCL = 3.4MHz 50 50 kHz Fast Mode: SCL = 400kHz 8 8 kHz Standard Mode, SCL = 100kHz 2 2 kHz Conversion Time 66 µs AC ACCURACY Total Harmonic Distortion VIN = 2.5VPP at 10kHz –82 –82 dB (2) Signal-to-Ratio VIN = 2.5VPP at 10kHz 72 72 dB Signal-to-(Noise+Distortion) Ratio VIN = 2.5VPP at 10kHz 71 71 dB Spurious-Free Dynamic Range VIN = 2.5VPP at 10kHz 86 86 dB Isolation Channel-to-Channel 120 120 dB VOLTAGE REFERENCE OUTPUT Range 2.475 2.5 2.525 2.475 2.5 2.525 V Internal Reference Drift 15 15 ppm/ °C Output Impedance Internal Reference ON 110 110 Ω Internal Reference OFF 1 1 G Ω Quiescent Current Int. Ref. ON, SCL and SDA pulled HIGH 1300 1300 µA VOLTAGE REFERENCE INPUT Range 0.05 VDD 0.05 VDD V Resistance 11 G Ω Current Drain High Speed Mode: SCL = 3.4MHz 20 20 µA DIGITAL INPUT/OUTPUT Logic Family CMOS CMOS Logic Levels: VIH +VDD • 0.7 +VDD + 0.5 +VDD • 0.7 +VDD + 0.5 V VIL –0.3 +VDD • 0.3 –0.3 +VDD • 0.3 V VOL Min. 3mA Sink Current 0.4 0.4 V Input Leakage: I IH V IH = +VDD +0.5 10 10 µA I IL V IL = -0.3 –10 –10 µA Data Format Straight Straight Binary Binary ADS7828 HARDWARE ADDRESS 10010 10010 Binary POWER-SUPPLY REQUIREMENTS Power-Supply Voltage, +VDD Specified Performance 4.75 5 5.25 4.75 5 5.25 V Quiescent Current High Speed Mode: SCL = 3.4MHz 750 1000 750 1000 µA Fast Mode: SCL = 400kHz 300 300 µA Standard Mode, SCL = 100kHz 150 150 µA Power Dissipation High Speed Mode: SCL = 3.4MHz 3.75 5 3.75 5 mW Fast Mode: SCL = 400kHz 1.5 1.5 mW Standard Mode, SCL = 100kHz 0.75 0.75 mW Power-Down Mode High Speed Mode: SCL = 3.4MHz 400 400 µA w/Wrong Address Selected Fast Mode: SCL = 400kHz 150 150 µA Standard Mode, SCL = 100kHz 35 35 µA Full Power-Down SCL Pulled HIGH, SDA Pulled HIGH 400 3000 400 3000 nA TEMPERATURE RANGE Specified Performance –40 +85 –40 +85 °C ELECTRICAL CHARACTERISTICS: +5V At TA = –40°C to +85°C, +VDD = +5.0V, VREF = External +5.0V, SCL Clock Frequency = 3.4MHz (High-Speed Mode), unless otherwise noted. ADS7828E ADS7828EB PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS |
Podobny numer części - ADS7828EB2K5 |
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Podobny opis - ADS7828EB2K5 |
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