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AD7942 Datasheet(PDF) 3 Page - Analog Devices |
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AD7942 Datasheet(HTML) 3 Page - Analog Devices |
3 / 24 page Data Sheet AD7942 Rev. C | Page 3 of 24 SPECIFICATIONS VDD = 2.3 V to 5.5 V, VIO = 2.3 V to VDD, VREF = VDD, TA = –40°C to +85°C, unless otherwise noted. Table 2. Parameter Conditions Min Typ Max Unit RESOLUTION 14 Bits ANALOG INPUT Voltage Range IN+ − IN− 0 VREF V Absolute Input Voltage IN+ −0.1 VDD + 0.1 V IN− −0.1 +0.1 V Analog Input CMRR fIN = 250 kHz 65 dB Leakage Current TA = 25°C, acquisition phase 1 nA Input Impedance See the Analog Input section ACCURACY No Missing Codes 14 Bits Differential Linearity Error −0.7 ±0.3 +0.7 LSB1 Integral Linearity Error −1 ±0.4 +1 LSB Transition Noise VREF = VDD = 5 V 0.33 LSB Gain Error2, TMIN to TMAX ±0.7 ±6 LSB Gain Error Temperature Drift ±1 ppm/°C Offset Error2, TMIN to TMAX VDD = 4.5 V to 5.5 V ±0.45 ±3 mV VDD = 2.3 V to 4.5 V ±0.75 ±4.5 mV Offset Temperature Drift ±2.5 ppm/°C Power Supply Sensitivity VDD = 5 V ± 5% ±0.1 LSB THROUGHPUT Conversion Rate VDD = 4.5 V to 5.5 V 0 250 kSPS VDD = 2.3 V to 4.5 V 0 200 kSPS Transient Response Full-scale step 1.8 μs AC ACCURACY Signal-to-Noise Ratio (SNR) fIN = 20 kHz, VREF = 5 V 84.5 85 dB3 fIN = 20 kHz, VREF = 2.5 V 84 dB Spurious-Free Dynamic Range (SFDR) fIN = 20 kHz −100 dB Total Harmonic Distortion (THD) fIN = 20 kHz −100 dB Signal-to-Noise and Distortion Ratio (SINAD) fIN = 20 kHz, VREF = 5 V 83 85 dB fIN = 20 kHz, VREF = 5 V, −60 dB input 25 dB fIN = 20 kHz, VREF = 2.5 V 84 dB REFERENCE Voltage Range 0.5 VDD + 0.3 V Load Current 250 kSPS, VREF = 5 V 50 μA SAMPLING DYNAMICS −3 dB Input Bandwidth 2 MHz Aperture Delay VDD = 5 V 2.5 ns DIGITAL INPUTS Logic Levels VIL –0.3 +0.3 × VIO V VIH 0.7 × VIO VIO + 0.3 V IIL −1 +1 μA IIH −1 +1 μA |
Similar Part No. - AD7942_15 |
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Similar Description - AD7942_15 |
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