Datasheet RT2378-20 (Analog Devices) - 3
| 制造商 | Analog Devices |
| 描述 | Radiation Tolerant 20-Bit, 1Msps, Low Power Plastic Package SAR ADC |
| 页数 / 页 | 10 / 3 — c onverTer characTerisTics The. denotes the specifications which apply … |
| 文件格式/大小 | PDF / 181 Kb |
| 文件语言 | 英语 |
c onverTer characTerisTics The. denotes the specifications which apply over the full operating
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RT2378-20
c onverTer characTerisTics The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS SUB GROUP MIN TYP MAX UNITS
Resolution l 20 Bits No Missing Codes l 20 Bits Transition Noise 2.3 ppmRMS INL Integral Linearity Error (Note 6) l 1, 2, 3 –2 ±0.5 2 ppm REF/DGC = GND (Note 6) l 1, 2, 3 –2 ±0.5 2 ppm DNL Differential Linearity Error (Note 10) l 1, 2, 3 –0.5 ±0.2 0.5 ppm BZE Bipolar Zero-Scale Error (Note 7) l 1, 2, 3 –13 0 13 ppm Bipolar Zero-Scale Error Drift ±7 ppb/°C FSE Bipolar Full-Scale Error (Note 7) l 1, 2, 3 –100 ±10 100 ppm Bipolar Full-Scale Error Drift ±0.05 ppm/°C
Dyna Mic accuracy The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C and AIN = –1dBFS. (Notes 4, 8) SYMBOL PARAMETER CONDITIONS SUB GROUP MIN TYP MAX UNITS
SINAD Signal-to-(Noise + Distortion) Ratio fIN = 2kHz, VREF = 5V l 4, 5, 6 101 104 dB SNR Signal-to-Noise Ratio fIN = 2kHz, VREF = 5V l 4, 5, 6 101 104 dB fIN = 2kHz, VREF = 5V, REF/DGC = GND l 4, 5, 6 99 102 dB fIN = 2kHz, VREF = 2.5V l 4, 5, 6 95.4 98 dB THD Total Harmonic Distortion fIN = 2kHz, VREF = 5V l 4, 5, 6 –125 –114 dB fIN = 2kHz, VREF = 5V, REF/DGC = GND l 4, 5, 6 –125 –114 dB fIN = 2kHz, VREF = 2.5V l 4, 5, 6 –123 –113 dB SFDR Spurious Free Dynamic Range fIN = 2kHz, VREF = 5V l 4, 5, 6 115 128 dB –3dB Input Bandwidth 34 MHz Aperture Delay 500 ps Aperture Jitter 4 ps Transient Response Full-Scale Step 312 ns
r eFerence inpuT The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS SUB GROUP MIN TYP MAX UNITS
VREF Reference Voltage (Note 5) l 1, 2, 3 2.5 5.1 V IREF Reference Input Current (Note 9) l 1, 2, 3 0.94 1.1 mA VIHDGC High Level Input Voltage REF/DGC Pin l 1, 2, 3 0.8VREF V VILDGC Low Level Input Voltage REF/DGC Pin l 1, 2, 3 0.2VREF V rt237820fa For more information www.linear.com 3 Document Outline Features Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Converter Characteristics Dynamic Accuracy Reference Input Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics
c onverTer characTerisTics The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS SUB GROUP MIN TYP MAX UNITS
Resolution l 20 Bits No Missing Codes l 20 Bits Transition Noise 2.3 ppmRMS INL Integral Linearity Error (Note 6) l 1, 2, 3 –2 ±0.5 2 ppm REF/DGC = GND (Note 6) l 1, 2, 3 –2 ±0.5 2 ppm DNL Differential Linearity Error (Note 10) l 1, 2, 3 –0.5 ±0.2 0.5 ppm BZE Bipolar Zero-Scale Error (Note 7) l 1, 2, 3 –13 0 13 ppm Bipolar Zero-Scale Error Drift ±7 ppb/°C FSE Bipolar Full-Scale Error (Note 7) l 1, 2, 3 –100 ±10 100 ppm Bipolar Full-Scale Error Drift ±0.05 ppm/°C
Dyna Mic accuracy The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C and AIN = –1dBFS. (Notes 4, 8) SYMBOL PARAMETER CONDITIONS SUB GROUP MIN TYP MAX UNITS
SINAD Signal-to-(Noise + Distortion) Ratio fIN = 2kHz, VREF = 5V l 4, 5, 6 101 104 dB SNR Signal-to-Noise Ratio fIN = 2kHz, VREF = 5V l 4, 5, 6 101 104 dB fIN = 2kHz, VREF = 5V, REF/DGC = GND l 4, 5, 6 99 102 dB fIN = 2kHz, VREF = 2.5V l 4, 5, 6 95.4 98 dB THD Total Harmonic Distortion fIN = 2kHz, VREF = 5V l 4, 5, 6 –125 –114 dB fIN = 2kHz, VREF = 5V, REF/DGC = GND l 4, 5, 6 –125 –114 dB fIN = 2kHz, VREF = 2.5V l 4, 5, 6 –123 –113 dB SFDR Spurious Free Dynamic Range fIN = 2kHz, VREF = 5V l 4, 5, 6 115 128 dB –3dB Input Bandwidth 34 MHz Aperture Delay 500 ps Aperture Jitter 4 ps Transient Response Full-Scale Step 312 ns
r eFerence inpuT The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS SUB GROUP MIN TYP MAX UNITS
VREF Reference Voltage (Note 5) l 1, 2, 3 2.5 5.1 V IREF Reference Input Current (Note 9) l 1, 2, 3 0.94 1.1 mA VIHDGC High Level Input Voltage REF/DGC Pin l 1, 2, 3 0.8VREF V VILDGC Low Level Input Voltage REF/DGC Pin l 1, 2, 3 0.2VREF V rt237820fa For more information www.linear.com 3 Document Outline Features Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Converter Characteristics Dynamic Accuracy Reference Input Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics