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ADS7841ESG4 Datasheet(PDF) 3 Page - Texas Instruments |
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ADS7841ESG4 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 20 page ADS7841 3 SBAS084B ✻ Same specifications as ADS7841E, P. NOTE: (1) LSB means Least Significant Bit. With VREF equal to +5.0V, one LSB is 1.22mV. (2) First five harmonics of the test frequency. (3) Auto power-down mode (PD1 = PD0 = 0) active or SHDN = GND. ELECTRICAL CHARACTERISTICS: +5V At TA = TMIN to TMAX, +VCC = +5V, VREF = +5V, fSAMPLE = 200kHz, and fCLK = 16 • fSAMPLE = 3.2MHz, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS ANALOG INPUT Full-Scale Input Span Positive Input - Negative Input 0VREF ✻✻ ✻ ✻ V Absolute Input Range Positive Input –0.2 +VCC +0.2 ✻✻ ✻ ✻ V Negative Input –0.2 +1.25 ✻✻ ✻ ✻ V Capacitance 25 ✻✻ pF Leakage Current 200 200 200 nA SYSTEM PERFORMANCE Resolution 12 ✻✻ Bits No Missing Codes 12 12 11 Bits Integral Linearity Error ±2 ±1 2 LSB(1) Differential Linearity Error ±0.8 ±0.5 ±1 ±0.8 LSB Offset Error ±3 ✻✻ LSB Offset Error Match 0.15 1.0 ✻✻ ✻✻ LSB Gain Error ±4 ±3 ±4 LSB Gain Error Match 0.1 1.0 ✻✻ ✻✻ LSB Noise 30 ✻✻ µVrms Power-Supply Rejection 70 ✻✻ dB SAMPLING DYNAMICS Conversion Time 12 ✻✻ Clk Cycles Acquisition Time 3 ✻✻ Clk Cycles Throughput Rate 200 ✻✻ kHz Multiplexer Settling Time 500 ✻✻ ns Aperture Delay 30 ✻✻ ns Aperture Jitter 100 ✻✻ ps DYNAMIC CHARACTERISTICS Total Harmonic Distortion(2) VIN = 5Vp-p at 10kHz –78 –72 –80 –76 –78 –72 dB Signal-to-(Noise + Distortion) VIN = 5Vp-p at 10kHz 68 71 70 72 68 71 dB Spurious-Free Dynamic Range VIN = 5Vp-p at 10kHz 72 79 76 81 72 79 dB Channel-to-Channel Isolation VIN = 5Vp-p at 50kHz 120 ✻ 120 dB REFERENCE INPUT Range 0.1 +VCC ✻✻ ✻ ✻ V Resistance DCLK Static 5 ✻✻ G Ω Input Current 40 100 ✻✻ ✻✻ µA fSAMPLE = 12.5kHz 2.5 ✻✻ µA DCLK Static 0.001 3 ✻✻ ✻✻ µA DIGITAL INPUT/OUTPUT Logic Family CMOS ✻✻ Logic Levels VIH | IIH | ≤ +5µA 3.0 5.5 ✻✻ ✻ ✻ V VIL | IIL | ≤ +5µA –0.3 +0.8 ✻✻ ✻ ✻ V VOH IOH = –250µA 3.5 ✻✻ V VOL IOL = 250µA 0.4 ✻✻ V Data Format Straight Binary ✻✻ PWR SUPPLY REQUIREMENTS +VCC Specified Performance 4.75 5.25 ✻✻ ✻ ✻ V Quiescent Current 550 900 ✻✻ µA fSAMPLE = 12.5kHz 300 ✻✻ µA Power-Down Mode(3), CS = +VCC 3 ✻✻ µA Power Dissipation 4.5 ✻✻ mW TEMPERATURE RANGE Specified Performance –40 +85 ✻✻ ✻ +125 °C ADS7841E, P ADS7841EB, PB ADS7841ES |
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