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AD7878SQ データシート(PDF) 2 Page - Analog Devices |
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AD7878SQ データシート(HTML) 2 Page - Analog Devices |
2 / 16 page AD7878–SPECIFICATIONS –2– REV. A (VDD = +5 V 5%, VCC = +5 V 5%, VSS = –5 V 5%, AGND = DGND = 0 V, fCLK = 8 MHz. All Specifications TMIN to TMAX, unless otherwise noted.) J, A K, L, B S Parameter Versions 1 Versions Version Units Test Conditions/Comments DYNAMIC PERFORMANCE 2 Signal-to-Noise Ratio (SNR) 3 @ 25 °C 70 72 70 dB min VIN = 10 kHz Sine Wave, fSAMPLE = 100 kHz TMIN to TMAX 70 71 70 dB min Typically 71.5 dB for 0 < VIN < 50 kHz Total Harmonic Distortion (THD) –80 –80 –78 dB max VIN = 10 kHz Sine Wave, fSAMPLE = 100 kHz Typically –86 dB for 0 < VIN < 50 kHz Peak Harmonic or Spurious Noise –80 –80 –78 dB max VIN = 10 kHz, fSAMPLE = 100 kHz Typically –86 dB for 0 < VIN < 50 kHz Intermodulation Distortion (IMD) Second Order Terms –80 –80 –78 dB max fa = 9 kHz, fb = 9.5 kHz, fSAMPLE = 50 kHz Third Order Terms –80 –80 –78 dB max fa = 9 kHz, fb = 9.5 kHz, fSAMPLE = 50 kHz Track/Hold Acquisition Time 2 2 2 µs max See Throughput Rate Section DC ACCURACY Resolution 12 12 12 Bits Minimum Resolution for Which No Missing Codes are Guaranteed 12 12 12 Bits Relative Accuracy ±1/2 ±1/4 ±1/2 LSB typ Differential Nonlinearity ±1/2 ±1/2 ±1/2 LSB typ Bipolar Zero Error ±6 ±6 ±6 LSB max Positive Full-Scale Error 4 ±6 ±6 ±6 LSB max Negative Full-Scale Error 4 ±6 ±6 ±6 LSB max ANALOG INPUT Input Voltage Range ±3 ±3 ±3 Volts Input Current ±550 ±550 ±550 µA max REFERENCE OUTPUT 5 REF OUT 3 3 3 V nom REF OUT Error @ 25 °C ±10 ±10 ±10 mV max TMIN to TMAX ±15 ±15 ±15 mV max Reference Load Sensitivity ( ∆REF OUT/∆I) ±1 ±1 ±1 mV max Reference Load Current Change (0 µA–500 µA). Reference Load Should Not Be Changed During Conversion LOGIC INPUTS Input High Voltage, VINH +2.4 +2.4 +2.4 V min VCC = +5 V ± 5% Input Low Voltage, VINL +0.8 +0.8 +0.8 V max VCC = +5 V ± 5% Input Current, IIN ±10 ±10 ±10 µA max VIN = 0 to VCC Input Capacitance, CIN 6 10 10 10 pF max LOGIC OUTPUTS Output High Voltage, VOH +2.7 +2.7 +2.7 V min ISOURCE 40 µA Output Low Voltage, VOL +0.4 +0.4 +0.4 V max ISINK = 1.6 mA DB11–DB0 Floating State Leakage Current ±10 ±10 ±10 ±10 µA max Floating State Output Capacitance 6 15 15 15 15 pF max CONVERSION TIME 7/7.125 7/7.125 7/7.125 µs min/µs max Assuming No External Read/Write Operations 7/9.250 7/9.250 7/9.250 µs min/µs max Assuming 17 External Read/Write Operations See Internal Comparator Timing Section POWER REQUIREMENTS VDD +5 +5 +5 V nom ±5% for Specified Performance VCC +5 +5 +5 V nom ±5% for Specified Performance VSS –5 –5 –5 V nom ±5% for Specified Performance IDD 13 13 13 mA max CS = DMWR = DMRD = 5 V ICC 100 100 100 µA max CS = DMWR = DMRD = 5 V ISS 6 6 6 mA max CS = DMWR = DMRD = 5 V Power Dissipation 95.5 95.5 95.5 mW max Typically 60 mW NOTES 1Temperature range as follows: J, K, L versions: 0 °C to +70°C; A, B versions: –25°C to +85°C; S version: –55°C to +125°C. 2V IN = ± 3 V. See Dynamic Specifications section. 3SNR calculation includes distortion and noise components. 4Measured with respect to the Internal Reference. 5For capacitive loads greater than 50 pF a series resistor is required (see Internal Reference section). 6Sample tested @ +25 °C to ensure compliance. Specifications subject to change without notice. |
同様の部品番号 - AD7878SQ |
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同様の説明 - AD7878SQ |
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