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ADS7841E Datasheet(PDF) 3 Page - Burr-Brown (TI) |
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ADS7841E Datasheet(HTML) 3 Page - Burr-Brown (TI) |
3 / 14 page ® 3 ADS7841 SPECIFICATION: +2.7V At TA = –40°C to +85°C, +VCC = +2.7V, VREF = +2.5V, fSAMPLE = 125kHz, and fCLK = 16 • fSAMPLE = 2MHz, unless otherwise noted. ADS7841E, P ADS7841EB, PB PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS ANALOG INPUT Full-Scale Input Span Positive Input - Negative Input 0 VREF TT V Absolute Input Range Positive Input –0.2 +VCC +0.2 TT V Negative Input –0.2 +0.2 TT V Capacitance 25 T pF Leakage Current ±1 T µA SYSTEM PERFORMANCE Resolution 12 T Bits No Missing Codes 12 12 Bits Integral Linearity Error ±2 ±1 LSB(1) Differential Linearity Error ±0.8 ±0.5 ±1 LSB Offset Error ±3 T LSB Offset Error Match 0.15 1.0 TT LSB Gain Error ±4 ±3 LSB Gain Error Match 0.1 1.0 TT LSB Noise 30 T µVrms Power Supply Rejection 70 T dB SAMPLING DYNAMICS Conversion Time 12 T Clk Cycles Acquisition Time 3 T Clk Cycles Throughput Rate 125 T kHz Multiplexer Settling Time 500 T ns Aperture Delay 30 T ns Aperture Jitter 100 T ps DYNAMIC CHARACTERISTICS Total Harmonic Distortion(2) VIN = 2.5Vp-p at 10kHz –77 –72 –79 –76 dB Signal-to-(Noise + Distortion) VIN = 2.5Vp-p at 10kHz 68 71 70 72 dB Spurious Free Dynamic Range VIN = 2.5Vp-p at 10kHz 72 78 76 80 dB Channel-to-Channel Isolation VIN = 2.5Vp-p at 50kHz 100 T dB REFERENCE INPUT Range 0.1 +VCC TT V Resistance DCLK Static 5 T G Ω Input Current 13 40 TT µA fSAMPLE = 12.5kHz 2.5 T µA DCLK Static 0.001 3 TT µA DIGITAL INPUT/OUTPUT Logic Family CMOS T Logic Levels VIH | IIH | ≤ +5µA+VCC • 0.7 5.5 TT V VIL | IIL | ≤ +5µA –0.3 +0.8 TT V VOH IOH = –250µA+VCC • 0.8 T V VOL IOL = 250µA 0.4 T V Data Format Straight Binary T POWER SUPPLY REQUIREMENTS +VCC Specified Performance 2.7 3.6 TT V Quiescent Current 280 650 TT µA fSAMPLE = 12.5kHz 220 T µA Power-Down Mode(3), CS = +VCC 3 T µA Power Dissipation 1.8 T mW TEMPERATURE RANGE Specified Performance –40 +85 TT °C T Same specifications as ADS7841E, P. NOTE: (1) LSB means Least Significant Bit. With VREF equal to +2.5V, one LSB is 610mV. (2) First five harmonics of the test frequency. (3) Auto power-down mode (PD1 = PD0 = 0) active or SHDN = GND. |
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Descripción similar - ADS7841E |
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