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ADS1254 Datasheet(PDF) 3 Page - Texas Instruments |
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ADS1254 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 24 page ADS1254 3 SBAS213B www.ti.com ADS1254E PARAMETER CONDITIONS MIN TYP MAX UNITS ELECTRICAL CHARACTERISTICS All specifications at TMIN to TMAX, AVDD = +5V, DVDD = +1.8V. CLK = 8MHz, and VREF = 4.096, unless otherwise specified. NOTE: (1) Applies to full-differential signals. ANALOG INPUT Input Voltage Range AGND ±V REF V Input Impedance CLK = 3,840Hz 260 M Ω CLK = 1MHz 1 M Ω CLK = 8MHz 125 k Ω Input Capacitance 6pF Input Leakage At +25 °C5 50 pA At TMIN to TMAX 1nA DYNAMIC CHARACTERISTICS Data Rate 20.8 kHz Bandwidth –3dB 4.24 kHz Serial Clock (SCLK) 8 MHz System Clock Input (CLK) 8 MHz ACCURACY Integral Non-Linearity(1) ±0.0002 ±0.0015 % of FSR THD 1kHz Input; 0.1dB below FS 105 dB Noise 1.8 2.7 ppm of FSR, rms Resolution 24 Bits No Missing Codes 24 Bits Common-Mode Rejection 60Hz, AC 90 102 dB Gain Error 0.1 1 % of FSR Offset Error ±30 ±100 ppm of FSR Gain Sensitivity to VREF 1:1 Power-Supply Rejection Ratio 70 88 dB PERFORMANCE OVER TEMPERATURE Offset Drift 0.07 ppm/ °C Gain Drift 0.4 ppm/ °C VOLTAGE REFERENCE VREF 0.5 4.096 VDD V Load Current 32 µA DIGITAL INPUT/OUTPUT Logic Family CMOS Logic Level: VIH 0.65 • DVDD DVDD + 0.3 V VIL –0.3 0.35 • DVDD V VOH IOH = –500µADVDD –0.4 V VOL IOL = 500µA 0.4 V Input (SCLK, CLK, CHSEL0, CHSEL1) Hysteresis 0.6 V Data Format Offset Binary Two’s Complement POWER-SUPPLY REQUIREMENTS Power Supply Voltage DVDD 1.8 3.6 VDC AVDD 4.75 5 5.25 VDC Quiescent Current AVDD = +5V 0.8 1.15 mA DVDD = +1.8V 0.2 0.4 mA Operating Power 4.3 6.5 mW Power-Down Current 0.4 1 µA TEMPERATURE RANGE Operating –40 +85 °C Storage –60 +150 °C |
Número de pieza similar - ADS1254_14 |
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Descripción similar - ADS1254_14 |
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