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AD7656ABSTZ Datasheet(PDF) 3 Page - List of Unclassifed Manufacturers |
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AD7656ABSTZ Datasheet(HTML) 3 Page - List of Unclassifed Manufacturers |
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3 / 28 page  Data Sheet AD7656A SPECIFICATIONS VREF = 2.5 V internal/external, AVCC = 4.75 V to 5.25 V, DVCC = 4.75 V to 5.25 V, and VDRIVE = 2.7 V to 5.25 V. For the ±4 × VREF range, VDD = 11 V to 16.5 V, and VSS = −11 V to −16.5 V. For the ±2 × VREF range, VDD = 6 V to 16.5 V, and VSS = −6 V to −16.5 V. fSAMPLE = 250 kSPS, and TA = TMIN to TMAX, unless otherwise noted. Table 1. Parameter Min Typ Max Unit Test Conditions/Comments DYNAMIC PERFORMANCE fIN = 50 kHz sine wave Signal-to-Noise + Distortion (SINAD)1 84 85.5 dB Signal-to-Noise Ratio (SNR)1 85 86.5 dB Total Harmonic Distortion (THD)1 −90 dB RANGE Pin = 0 −92 dB VDD/VSS = ±6 V to ±11 V RANGE Pin = 1 −100 dB VDD/VSS = ±12 V to ±16.5 V Peak Harmonic or Spurious Noise (SFDR)1 −100 dB Intermodulation Distortion (IMD)1 fa = 50 kHz, fb = 49 kHz Second-Order Terms −112 dB Third-Order Terms −107 dB Aperture Delay 10 ns Aperture Delay Matching 4 ns Aperture Jitter 35 ps Channel-to-Channel Isolation1 −100 dB fIN on unselected channels up to 100 kHz Full Power Bandwidth 12 MHz At −3 dB 2 MHz At −0.1 dB DC ACCURACY Resolution 16 Bits No Missing Codes 15 Bits 16 Bits At 25°C Integral Nonlinearity1 ±3 LSB ±1 LSB Positive Full-Scale Error1 ±0.22% ±0.75 % FSR Positive Full-Scale Error Matching1 ±0.35 % FSR Bipolar Zero-Scale Error1 ±0.004% ±0.023 % FSR Bipolar Zero-Scale Error Matching1 ±0.038 % FSR Negative Full-Scale Error1 ±0.22% ±0.75 % FSR Negative Full-Scale Error Matching1 ±0.35 % FSR ANALOG INPUT See Table 6 for the minimum VDD/VSS for each range Input Voltage Ranges −4 × VREF +4 × VREF V RANGE pin = 0 −2 × VREF +2 × VREF V RANGE pin = 1 DC Leakage Current ±1 µA Input Capacitance2 10 pF ±4 × VREF range when in track mode 14 pF ±2 × VREF range when in track mode REFERENCE INPUT/OUTPUT Reference Input Voltage Range 2.5 3 V DC Leakage Current ±1 µA Input Capacitance2 18.5 pF REFEN/DIS = 13 Reference Output Voltage 2.49 2.51 V Long-Term Stability 150 ppm 1000 hours Reference Temperature Coefficient 25 ppm/°C 6 ppm/°C Rev. 0 | Page 3 of 28 |
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