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AD7291BCPZ-RL7 Folha de dados(PDF) 2 Page - Analog Devices |
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AD7291BCPZ-RL7 Folha de dados(HTML) 2 Page - Analog Devices |
2 / 21 page AD7291 Preliminary Technical Data Rev. PrC | Page 2 of 21 SPECIFICATIONS AD7291 SPECIFICATIONS VDD = 2.8V to 3.6V; VDRIVE = 1.65 V to 3.6 V; fSCLK = 400KHz, fast SCLK mode; VREF = 2.5 V internal/external; TA = −40°C to +125°C, unless otherwise noted. Table 2. Parameter Min Typ Max Unit Test Conditions/Comments DYNAMIC PERFORMANCE fIN = 10 kHz sine wave Signal-to-Noise Ratio (SNR)1 70 71 dB Signal-to-Noise (+ Distortion) Ratio (SINAD)1 70 71 dB Total Harmonic Distortion (THD)1 −84 78 dB Spurious-Free Dynamic Range (SFDR)1 −85 80 dB Intermodulation Distortion (IMD)1 fA = 5.4 kHz, fB = 4.6 kHz Second-Order Terms −88 dB Third-Order Terms −88 dB Channel-to-Channel Isolation1 −100 dB Full Power Bandwidth2 TBD MHz @ 3 dB TBD MHz @ 0.1 dB DC ACCURACY Resolution 12 Bits Integral Nonlinearity (INL)1 ±0.5 ±1 LSB Differential Nonlinearity (DNL)1 ±0.5 ±0.99 LSB Guaranteed no missed codes to 12 bits Offset Error ±1 ±6 LSB Offset Error Matching ±0.5 ±1 LSB Offset Temperature Drift 4 ppm/°C Gain Error ±1 ±2 LSB Gain Error Matching ±0.5 ±1 LSB Gain Temperature Drift 0.5 ppm/°C ANALOG INPUT Input Voltage Ranges 0 VREF V DC Leakage Current ±0.01 ±1 µA Input Capacitance2 32 pF During Acquisition Outside Acquisition Input Impedance2 TBD kΩ REFERENCE INPUT/OUTPUT Reference Output Voltage3 2.4875 2.5 2.512 5 V ±0.5% maximum @ 25°C Long-Term Stability 150 ppm For 1000 hours Output Voltage Hysteresis1 50 ppm Reference Input Voltage Range4 2.0 2.5 V DC Leakage Current ±0.01 ±1 µA External reference applied to Pin VREF Input Capacitance TBD pF VREF Output Impedance TBD Ω Reference Temperature Coefficient 6 25 ppm/°C VREF Noise2 60 µV rms Bandwidth = TBD kHz |
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