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ADS7824U Datasheet(PDF) 2 Page - Burr-Brown (TI) |
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ADS7824U Datasheet(HTML) 2 Page - Burr-Brown (TI) |
2 / 16 page 2 ® ADS7824 SPECIFICATIONS ELECTRICAL At TA = –40°C to +85°C, fS = 40kHz, VS1 = VS2 = VS = +5V ±5%, using external reference, CONTC = 0V, unless otherwise specified. ADS7824P, U ADS7824PB, UB PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant any BURR-BROWN product for use in life support devices and/or systems. RESOLUTION 12 T(1) Bits ANALOG INPUT Voltage Range ±10V T V Impedance Channel On or Off 45.7 T k Ω Capacitance 35 T pF THROUGHPUT SPEED Conversion Time 20 T µs Acquisition Time 5 T µs Multiplexer Settling Time Includes Acquisition 5 T µs Complete Cycle (Acquire and Convert) 25 T µs Complete Cycle (Acquire and Convert) CONTC = +5V 40 T µs Throughput Rate 40 T kHz DC ACCURACY Integral Linearity Error ±0.15 ±1 T ±0.5 LSB(2) Differential Linearity Error ±0.15 ±1 T ±0.5 LSB No Missing Codes Guaranteed T Transition Noise(3) 0.1 T LSB Full Scale Error(4) Internal Reference ±0.5 ±0.25 % Full Scale Error Drift Internal Reference ±7 ±5 ppm/ °C Full Scale Error(4) ±0.5 ±0.25 % Full Scale Error Drift ±2 T ppm/ °C Bipolar Zero Error ±10 T mV Bipolar Zero Error Drift ±2 T ppm/ °C Channel-to-Channel Mismatch ±0.1 ±0.1 % Power Supply Sensitivity +4.75 < VS < +5.25 ±0.5 T LSB AC ACCURACY Spurious-Free Dynamic Range(5) fIN = 1kHz 80 90 TT dB Total Harmonic Distortion fIN = 1kHz –90 –80 TT dB Signal-to-(Noise+Distortion) fIN = 1kHz 70 73 72 T dB Signal-to-Noise fIN = 1kHz 70 73 72 T dB Channel Separation(6) fIN = 1kHz 90 100 TT dB –3dB Bandwidth 2 T MHz Useable Bandwidth(7) 90 T kHz SAMPLING DYNAMICS Aperture Delay 40 T ns Transient Response(8) FS Step 5 T µs Overvoltage Recovery(9) 1 T µs REFERENCE Internal Reference Voltage 2.48 2.5 2.52 TT T V Internal Reference Source Current 1 T µA (Must use external buffer) External Reference Voltage Range 2.3 2.5 2.7 TT T V for Specified Linearity External Reference Current Drain VREF = +2.5V 100 T µA DIGITAL INPUTS Logic Levels VIL –0.3 +0.8 TT V VIH +2.4 VS +0.3V TT V IIL ±10 T µA IIH ±10 T µA DIGITAL OUTPUTS Data Format Parallel in two bytes; Serial T Data Coding Binary Two's Complement T VOL ISINK = 1.6mA +0.4 T V VOH ISOURCE = 500µA+4 T V Leakage Current High-Z State, VOUT = 0V to VS ±5 T µA Output Capacitance High-Z State 15 T pF |
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