Datasheet AD7608 (Analog Devices) - 5

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AD7608 Data Sheet SPECIFICATIONS
VREF = 2.5 V external/internal, AVCC = 4.75 V to 5.25 V, VDRIVE = 2.3 V to 5.25 V; fSAMPLE = 200 kSPS, TA = TMIN to TMAX, unless otherwise noted.1
Table 2. Parameter Test Conditions/Comments Min Typ Max Unit
DYNAMIC PERFORMANCE fIN = 1 kHz sine wave unless otherwise noted Signal-to-Noise Ratio (SNR)2, 3 Oversampling by 16; ±10 V range; fIN = 130 Hz 98 99.5 dB Oversampling by 16; ±5 V range; fIN = 130 Hz 95.5 97.5 dB No oversampling; ±10 V range 89.5 90.9 dB No oversampling; ±5 V range 88.5 90 dB Signal-to-(Noise + Distortion) (SINAD)2 No oversampling; ±10 V range 88.5 90.5 dB No oversampling; ±5 V range 88 89.5 dB Dynamic Range No oversampling; ±10 V range 91.5 dB No oversampling; ±5 V range 90.5 dB Total Harmonic Distortion (THD)2 −107 −95 dB Peak Harmonic or Spurious Noise (SFDR)2 −108 dB Intermodulation Distortion (IMD)2 fa = 1 kHz, fb = 1.1 kHz Second-Order Terms −110 dB Third-Order Terms −106 dB Channel-to-Channel Isolation2 fIN on unselected channels up to 160 kHz −95 dB ANALOG INPUT FILTER Full Power Bandwidth −3 dB, ±10 V range 23 kHz −3 dB, ±5 V range 15 kHz −0.1 dB, ±10 V range 10 kHz −0.1 dB, ±5 V range 5 kHz tGROUP DELAY ±10 V range 11 µs ±5 V range 15 µs DC ACCURACY Resolution No missing codes 18 Bits Differential Nonlinearity2 ±0.75 −0.99/+2.6 LSB4 Integral Nonlinearity2 ±2.5 ±7.5 LSB Total Unadjusted Error (TUE) ±10 V range ±15 LSB ±5 V range ±40 LSB Positive Full-Scale Error2, 5 External reference ±15 ±128 LSB Internal reference ±40 LSB Positive Full-Scale Error Drift External reference ±2 ppm/°C Internal reference ±7 ppm/°C Positive Full-Scale Error Matching2 ±10 V range 12 95 LSB ±5 V range 30 128 LSB Bipolar Zero Code Error2, 6 ±10 V range ±3.5 ±24 LSB ± 5 V range ±3.5 ±48 LSB Bipolar Zero Code Error Drift ±10 V range 10 µV/°C ± 5 V range 5 µV/°C Bipolar Zero Code Error Matching2 ±10 V range 3 30 LSB ±5 V range 21 65 LSB Negative Full-Scale Error2, 5 External reference ±15 ±128 LSB Internal reference ±40 LSB Negative Full-Scale Error Drift External reference ±4 ppm/°C Internal reference ±8 ppm/°C Negative Full-Scale Error Matching2 ±10 V range 12 95 LSB ±5 V range 30 128 LSB Rev. A | Page 4 of 32 Document Outline Features Applications Companion Products Functional Block Diagram Table of Contents Revision History General Description Specifications Timing Specifications Timing Diagrams Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Terminology Theory of Operation Converter Details Analog Input Analog Input Ranges Analog Input Impedance Analog Input Clamp Protection Analog Input Antialiasing Filter Track-and-Hold Amplifiers ADC Transfer Function Internal/External Reference External Reference Mode Internal Reference Mode Typical Connection Diagram Power-Down Modes Conversion Control Simultaneous Sampling on All Analog Input Channels Simultaneously Sampling Two Sets of Channels Digital Interface Parallel Interface (/SER SEL = 0) Serial Interface (/SER SEL = 1) Reading During Conversion Digital Filter Layout Guidelines Outline Dimensions Ordering Guide