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AD7457 Datasheet(PDF) 4 Page - Analog Devices |
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AD7457 Datasheet(HTML) 4 Page - Analog Devices |
4 / 21 page AD7457 Rev. A | Page 3 of 20 SPECIFICATIONS VDD = 2.7 V to 5.25 V, fSCLK = 10 MHz, fS = 100 kSPS, VREF = 2.5 V, TA = TMIN to TMAX, unless otherwise noted. Table 1. Parameter Test Conditions/Comments B Version1 Unit DYNAMIC PERFORMANCE fIN = 30 kHz Signal to Noise Ratio (SNR)2 71 dB min Signal to (Noise + Distortion) (SINAD)2 70 dB min Total Harmonic Distortion (THD)2 −84 dB typ −75 dB max Peak Harmonic or Spurious Noise2 −86 dB typ −75 dB max Intermodulation Distortion (IMD)2 fa = 25 kHz; fb = 35 kHz Second-Order Terms −80 dB typ Third-Order Terms −80 dB typ Aperture Delay2 5 ns typ Aperture Jitter2 50 ps typ Full-Power Bandwidth2, 3 @ −3 dB 20 MHz typ @ −0.1 dB 2.5 MHz typ DC ACCURACY Resolution 12 Bits Integral Nonlinearity (INL)2 ±1 LSB max Differential Nonlinearity (DNL)2 Guaranteed no missed codes to 12 bits ±0.95 LSB max Offset Error2 ±4.5 LSB max Gain Error2 ±2 LSB max ANALOG INPUT Full-Scale Input Span VIN+ − VIN− VREF V Absolute Input Voltage VIN+ VREF V VIN−4 VDD = 2.7 V to 3.6 V −0.1 to +0.4 V VDD = 4.75 V to 5.25 V −0.1 to +1.5 V DC Leakage Current ±1 µA max Input Capacitance When in track/hold 30/10 pF typ REFERENCE INPUT VREF Input Voltage5 ±1% tolerance for specified performance 2.5 V DC Leakage Current ±1 µA max VREF Input Capacitance When in track/hold 10/30 pF typ LOGIC INPUTS Input High Voltage, VINH 2.4 V min Input Low Voltage, VINL 0.8 V max Input Current, IIN Typically 10 nA, VIN = 0 V or VDD ±1 µA max Input Capacitance, CIN6 10 pF max LOGIC OUTPUTS Output High Voltage, VOH VDD = 4.75 V to 5.25 V, ISOURCE = 200 µA 2.8 V min VDD = 2.7 V to 3.6 V, ISOURCE = 200 µA 2.4 V min Output Low Voltage, VOL ISINK = 200 µA 0.4 V max Floating-State Leakage Current ±1 µA max Floating-State Output Capacitance6 10 pF max Output Coding Straight natural binary CONVERSION RATE Conversion Time 1.6 µs with a 10 MHz SCLK 16 SCLK cycles Track-and-Hold Acquisition Time2 1 µs max Throughput Rate See the Serial Interface section 100 kSPS max |
Similar Part No. - AD7457_17 |
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Similar Description - AD7457_17 |
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