Datasheet AD7893 (Analog Devices) - 3

AD7893–SPECIFICATIONS (VDD = +5 V, AGND = DGND = 0 V, REF IN = +2.5 V. All specifications TMIN to TMAX unless otherwise noted.) A B S Parameter Versionsl Versions Version Units Test Conditions/Comments
DYNAMIC PERFORMANCE Signal to (Noise + Distortion) Ratio2 @ +25°C 70 70 70 dB min fIN = 10 kHz Sine Wave, fSAMPLE = 117 kHz Total Harmonic Distortion (THD)2 –80 –80 –80 dB max fIN = 10 kHz Sine Wave, fSAMPLE = 117 kHz Peak Harmonic or Spurious Noise2 –80 –80 –80 dB max fIN = 10 kHz Sine Wave, fSAMPLE = 117 kHz Intermodulation Distortion (IMD)2 fa = 9 kHz, fb = 9.5 kHz, fSAMPLE = 117 kHz 2nd Order Terms –80 –80 –80 dB max 3rd Order Terms –80 –80 –80 dB max DC ACCURACY Resolution 12 12 12 Bits Minimum Resolution for which No Missing Codes are Guaranteed 12 12 12 Bits Relative Accuracy2 ±1 ±1/2 ±1 LSB max Differential Nonlinearity2 ±1 ±1 ±1 LSB max Positive Full-Scale Error2 ±3 ±1.5 ±3 LSB max AD7893-2, AD7893-5 Unipolar Offset Error ±4 ±3 ±4 LSB max AD7893-10, AD7893-3 Negative Full-Scale Error2 ±3 ±1.5 ±3 LSB max Bipolar Zero Error ±4 ±2 ±4 LSB max ANALOG INPUT AD7893-10 Input Voltage Range ±10 ±10 ±10 Volts Input Resistance 16 16 16 kΩ min AD7893-3 Input Voltage Range ±2.5 ±2.5 ±2.5 Volts Input Resistance 4 4 4 kΩ min AD7893-5 Input Voltage Range 0 to +5 0 to +5 0 to +5 Volts Input Resistance 9 9 9 kΩ min AD7893-2 Input Voltage Range 0 to +2.5 0 to +2.5 0 to +2.5 Volts Input Current 500 500 500 nA max REFERENCE INPUT REF IN Input Voltage Range 2.375/2.625 2.375/2.625 2.375/2.625 V min/V max 2.5 V ± 5% Input Current 2 2 10 µA max Input Capacitance3 10 10 10 pF max LOGIC INPUTS Input High Voltage, VINH 2.4 2.4 2.4 V min VDD = 5 V ± 5% Input Low Voltage, VINL 0.8 0.8 0.8 V max VDD = 5 V ± 5% Input Current, I ± IN 10 ±10 ±10 µA max VIN = 0 V to VDD Input Capacitance, C 3 IN 10 10 10 pF max LOGIC OUTPUTS Output High Voltage, VOH 4.0 4.0 4.0 V min ISOURCE = 200 µA Output Low Voltage, VOL 0.4 0.4 0.4 V max ISINK = 1.6 mA Output Coding AD7893-10, AD7893-3 2s Complement AD7893-2, AD7893-5 Straight (Natural) Binary CONVERSION RATE Conversion Time 6 6 6 µs max Track/Hold Acquisition Time2 1.5 1.5 1.5 µs max POWER REQUIREMENTS VDD +5 +5 +5 V nom ±5% for Specified Performance IDD 9 9 9 mA max Power Dissipation 45 45 45 mW max Typically 25 mW NOTES 1Temperature Ranges are as follows: A, B Versions: –40°C to +85°C, S Version: –55°C to +125°C. 2See Terminology. 3Sample tested @ +25°C to ensure compliance. Specifications subject to change without notice. –2– REV. E