Datasheet LTC2377-18 (Analog Devices) - 3
| Fabricante | Analog Devices |
| Descripción | 18-Bit, 500ksps, Low Power SAR ADC with 102dB SNR |
| Páginas / Página | 26 / 3 — ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply … |
| Formato / tamaño de archivo | PDF / 764 Kb |
| Idioma del documento | Inglés |
ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply over the full operating
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Versión de texto del documento
LTC2377-18
ELECTRICAL 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 MIN TYP MAX UNITS
VIN+ Absolute Input Range (IN+) (Note 5) l –0.05 VREF + 0.05 V VIN– Absolute Input Range (IN–) (Note 5) l –0.05 VREF + 0.05 V VIN+ – VIN– Input Differential Voltage Range VIN = VIN+ – VIN– l –VREF +VREF V VCM Common-Mode Input Range l VREF/2– VREF/2 VREF/2+ V 0.1 0.1 IIN Analog Input Leakage Current l ±1 µA CIN Analog Input Capacitance Sample Mode 45 pF Hold Mode 5 pF CMRR Input Common Mode Rejection Ratio fIN = 250kHz 86 dB
CONVERTER 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 MIN TYP MAX UNITS
Resolution l 18 Bits No Missing Codes l 18 Bits Transition Noise 0.7 LSBRMS INL Integral Linearity Error (Note 6) l –1.75 ±0.5 1.75 LSB DNL Differential Linearity Error l –0.5 ±0.1 0.5 LSB BZE Bipolar Zero-Scale Error (Note 7) l –8 0 8 LSB Bipolar Zero-Scale Error Drift 3 mLSB/°C FSE Bipolar Full-Scale Error (Note 7) l –40 ±7 40 LSB Bipolar Full-Scale Error Drift ±0.05 ppm/°C
DYNAMIC 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 MIN TYP MAX UNITS
SINAD Signal-to-(Noise + Distortion) Ratio fIN = 2kHz, VREF = 5V l 98.5 102 dB fIN = 2kHz, VREF = 5V, (H-Grade) l 98 102 dB SNR Signal-to-Noise Ratio fIN = 2kHz, VREF = 5V l 99.3 102 dB fIN = 2kHz, VREF = 5V, REF/DGC = GND l 97.5 100 dB fIN = 2kHz, VREF = 2.5V l 94.1 97 dB fIN = 2kHz, VREF = 5V, (H-Grade) l 98.8 102 dB fIN = 2kHz, VREF = 5V, REF/DGC = GND, (H-Grade) l 97.1 100 dB fIN = 2kHz, VREF = 2.5V, (H-Grade) l 93.5 97 dB THD Total Harmonic Distortion fIN = 2kHz, VREF = 5V l –124 –106 dB fIN = 2kHz, VREF = 5V, REF/DGC = GND l –126 –103 dB fIN = 2kHz, VREF = 2.5V l –123 –105 dB fIN = 2kHz, VREF = 5V, (H-Grade) l –124 –104 dB fIN = 2kHz, VREF = 5V, REF/DGC = GND, (H-Grade) l –126 –100 dB fIN = 2kHz, VREF = 2.5V, (H-Grade) l –123 –104 dB SFDR Spurious Free Dynamic Range fIN = 2kHz, VREF = 5V l 105 125 dB –3dB Input Bandwidth 34 MHz Aperture Delay 500 ps Aperture Jitter 4 ps Transient Response Full-Scale Step 1.460 µs 237718fa For more information www.linear.com/LTC2377-18 3 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Converter Characteristics Dynamic Accuracy Reference Input Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Timing Diagram Applications Information Board Layout Package Description Revision History Typical Application Related Parts
ELECTRICAL 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 MIN TYP MAX UNITS
VIN+ Absolute Input Range (IN+) (Note 5) l –0.05 VREF + 0.05 V VIN– Absolute Input Range (IN–) (Note 5) l –0.05 VREF + 0.05 V VIN+ – VIN– Input Differential Voltage Range VIN = VIN+ – VIN– l –VREF +VREF V VCM Common-Mode Input Range l VREF/2– VREF/2 VREF/2+ V 0.1 0.1 IIN Analog Input Leakage Current l ±1 µA CIN Analog Input Capacitance Sample Mode 45 pF Hold Mode 5 pF CMRR Input Common Mode Rejection Ratio fIN = 250kHz 86 dB
CONVERTER 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 MIN TYP MAX UNITS
Resolution l 18 Bits No Missing Codes l 18 Bits Transition Noise 0.7 LSBRMS INL Integral Linearity Error (Note 6) l –1.75 ±0.5 1.75 LSB DNL Differential Linearity Error l –0.5 ±0.1 0.5 LSB BZE Bipolar Zero-Scale Error (Note 7) l –8 0 8 LSB Bipolar Zero-Scale Error Drift 3 mLSB/°C FSE Bipolar Full-Scale Error (Note 7) l –40 ±7 40 LSB Bipolar Full-Scale Error Drift ±0.05 ppm/°C
DYNAMIC 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 MIN TYP MAX UNITS
SINAD Signal-to-(Noise + Distortion) Ratio fIN = 2kHz, VREF = 5V l 98.5 102 dB fIN = 2kHz, VREF = 5V, (H-Grade) l 98 102 dB SNR Signal-to-Noise Ratio fIN = 2kHz, VREF = 5V l 99.3 102 dB fIN = 2kHz, VREF = 5V, REF/DGC = GND l 97.5 100 dB fIN = 2kHz, VREF = 2.5V l 94.1 97 dB fIN = 2kHz, VREF = 5V, (H-Grade) l 98.8 102 dB fIN = 2kHz, VREF = 5V, REF/DGC = GND, (H-Grade) l 97.1 100 dB fIN = 2kHz, VREF = 2.5V, (H-Grade) l 93.5 97 dB THD Total Harmonic Distortion fIN = 2kHz, VREF = 5V l –124 –106 dB fIN = 2kHz, VREF = 5V, REF/DGC = GND l –126 –103 dB fIN = 2kHz, VREF = 2.5V l –123 –105 dB fIN = 2kHz, VREF = 5V, (H-Grade) l –124 –104 dB fIN = 2kHz, VREF = 5V, REF/DGC = GND, (H-Grade) l –126 –100 dB fIN = 2kHz, VREF = 2.5V, (H-Grade) l –123 –104 dB SFDR Spurious Free Dynamic Range fIN = 2kHz, VREF = 5V l 105 125 dB –3dB Input Bandwidth 34 MHz Aperture Delay 500 ps Aperture Jitter 4 ps Transient Response Full-Scale Step 1.460 µs 237718fa For more information www.linear.com/LTC2377-18 3 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Converter Characteristics Dynamic Accuracy Reference Input Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Timing Diagram Applications Information Board Layout Package Description Revision History Typical Application Related Parts