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ADS7805 数据表(PDF) 2 Page - Burr-Brown (TI) |
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ADS7805 数据表(HTML) 2 Page - Burr-Brown (TI) |
2 / 12 page 2 ® ADS7805 RESOLUTION 16 T Bits ANALOG INPUT Voltage Ranges ±10V T V Impedance 23 T k Ω Capacitance 35 T pF THROUGHPUT SPEED Conversion Cycle Acquire and Convert 10 T µs Throughput Rate 100 T kHz DC ACCURACY Integral Linearity Error ±4 ±3 LSB(1) No Missing Codes 15 16 Bits Transition Noise(2) 1.3 T LSB Full Scale Error(3,4) ±0.5 ±0.25 % Full Scale Error Drift ±7 ±5 ppm/ °C Full Scale Error(3,4) Ext. 2.5000V Ref ±0.5 ±0.25 % Full Scale Error Drift Ext. 2.5000V Ref ±2 T ppm/ °C Bipolar Zero Error(3) ±10 T mV Bipolar Zero Error Drift ±2 T ppm/ °C Power Supply Sensitivity +4.75V < VD < +5.25V ±8 T LSB (VDIG = VANA = VD) AC ACCURACY Spurious-Free Dynamic Range fIN = 20kHz 90 94 dB(5) Total Harmonic Distortion fIN = 20kHz –90 –94 dB Signal-to-(Noise+Distortion) fIN = 20kHz 83 86 dB –60dB Input 30 32 dB Signal-to-Noise fIN = 20kHz 83 86 dB Full-Power Bandwidth(6) 250 T kHz SAMPLING DYNAMICS Aperture Delay 40 T ns Transient Response FS Step 2 T µs Overvoltage Recovery(7) 150 T ns REFERENCE Internal Reference Voltage 2.48 2.5 2.52 TT T V Internal Reference Source Current 1 T µA (Must use external buffer.) Internal Reference Drift 8 T ppm/ °C External Reference Voltage Range 2.3 2.5 2.7 TT T V for Specified Linearity External Reference Current Drain Ext. 2.5000V Ref 100 T µA DIGITAL INPUTS Logic Levels VIL –0.3 +0.8 TT V VIH +2.0 VD +0.3V TT V IIL ±10 T µA IIH ±10 T µA DIGITAL OUTPUTS Data Format Data Coding VOL ISINK = 1.6mA +0.4 T V VOH ISOURCE = 500µA+4 T V Leakage Current High-Z State, ±5 T µA VOUT = 0V to VDIG Output Capacitance High-Z State 15 15 pF DIGITAL TIMING Bus Access Time 83 T ns Bus Relinquish Time 83 T ns SPECIFICATIONS ELECTRICAL TA = –25°C to +85°C, fS = 100kHz, VDIG = VANA = +5V, using internal reference, unless otherwise specified. ADS7805P, U ADS7805PB, 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. Parallel 16-bits Binary Two’s Complement |
类似零件编号 - ADS7805 |
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类似说明 - ADS7805 |
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