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AD7294BCPZRL Datasheet(PDF) 7 Page - Analog Devices |
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AD7294BCPZRL Datasheet(HTML) 7 Page - Analog Devices |
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7 / 48 page  AD7294 Data Sheet Rev. I | Page 6 of 47 ADC SPECIFICATIONS AVDD = DVDD = 4.5 V to 5.5 V, AGND = DGND = 0 V, VREF = 2.5 V internal or external; VDRIVE = 2.7 V to 5.5 V; VPP = AVDD to 59.4 V; TA = −40°C to +105°C, unless otherwise noted. Table 2. Parameter Min Typ Max Unit Test Conditions/Comments DC ACCURACY Resolution 12 Bits Integral Nonlinearity (INL)1 ±0.5 ±1 LSB Differential mode ±0.5 ±1.5 LSB Single-ended or pseudo differential mode Differential Nonlinearity (DNL)1 ±0.5 ±0.99 LSB Differential, single-ended, and pseudo differential modes Single-Ended Mode Offset Error ±1 ±7 LSB Offset Error Match ±0.4 LSB Gain Error ±0.5 ±2.5 LSB Gain Error Match ±0.4 LSB Differential Mode Positive Gain Error ±1 LSB Positive Gain Error Match ±0.5 LSB Zero Code Error ±3 LSB Zero Code Error Match ±0.5 LSB Negative Gain Error ±1 LSB Negative Gain Error Match ±0.5 LSB CONVERSION RATE Conversion Time2 3 μs Autocycle Update Rate2 50 μs Throughput Rate 22.22 kSPS fSCL = 400 kHz ANALOG INPUT3 Single-Ended Input Range 0 VREF V 0 V to VREF mode 0 2 × VREF V 0 V to 2 × VREF mode Pseudo Differential Input Range: VIN+ − VIN−4 0 VREF 0 V to VREF mode 0 2 × VREF 0 V to 2 × VREF mode Fully Differential Input Range: VIN+ − VIN− −VREF +VREF 0 V to VREF mode −2 × VREF +2 × VREF 0 V to 2 × VREF mode Input Capacitance2 30 pF DC Input Leakage Current ±1 µA DYNAMIC PERFORMANCE Signal-to-Noise Ratio (SNR)1 73 dB fIN = 10 kHz sine wave; differential mode 72 dB fIN = 10 kHz sine wave; single-ended and pseudo differential modes Signal-to-Noise + Distortion (SINAD) Ratio1 71.5 dB fIN = 10 kHz sine wave; differential mode 72.5 dB fIN = 10 kHz sine wave; single-ended and pseudo differential modes Total Harmonic Distortion (THD)1 −81 dB fIN = 10 kHz sine wave; differential mode −79 dB fIN = 10 kHz sine wave; single-ended and pseudo differential modes Spurious-Free Dynamic Range (SFDR)1 −81 dB fIN = 10 kHz sine wave; differential mode −79 fIN = 10 kHz sine wave; single-ended and pseudo differential modes Channel-to-Channel Isolation2 −90 dB fIN = 10 kHz to 40 kHz |
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