Datasheet LTC2188 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | 16-Bit, 20Msps Low Power Dual ADC |
| 页数 / 页 | 36 / 4 — converTer characTerisTics. The. denotes the specifications which apply … |
| 文件格式/大小 | PDF / 622 Kb |
| 文件语言 | 英语 |
converTer characTerisTics. The. denotes the specifications which apply over the full operating
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LTC2188
converTer characTerisTics The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution (No Missing Codes) l 16 Bits Integral Linearity Error Differential Analog Input (Note 6) l –6.5 ±2 6.5 LSB Differential Linearity Error Differential Analog Input l –0.9 ±0.5 0.9 LSB Offset Error (Note 7) l –7 ±1.5 7 mV Gain Error Internal Reference ±1.5 %FS External Reference l –1.8 –0.5 0.8 %FS Offset Drift ±10 µV/°C Full-Scale Drift Internal Reference ±30 ppm/°C External Reference ±10 ppm/°C Gain Matching ±0.3 %FS Offset Matching ±1.5 mV Transition Noise 3.2 LSBRMS
analog inpuT The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V + – IN Analog Input Range (AIN – AIN ) 1.7V < VDD < 1.9V l 1 to 2 VP-P V + – IN(CM) Analog Input Common Mode (AIN + AIN )/2 Differential Analog Input (Note 8) l 0.7 VCM 1.25 V VSENSE External Voltage Reference Applied to SENSE External Reference Mode l 0.625 1.250 1.300 V IINCM Analog Input Common Mode Current Per Pin, 20Msps 32 µA I + – IN1 Analog Input Leakage Current (No Encode) 0 < AIN , AIN < VDD l –1 1 µA IIN2 PAR/SER Input Leakage Current 0 < PAR/SER < VDD l –3 3 µA IIN3 SENSE Input Leakage Current 0.625 < SENSE < 1.3V l –6 6 µA tAP Sample-and-Hold Acquisition Delay Time 0 ns tJITTER Sample-and-Hold Acquisition Delay Jitter Single-Ended Encode 0.07 psRMS Differential Encode 0.09 psRMS CMRR Analog Input Common Mode Rejection Ratio 80 dB BW-3B Full-Power Bandwidth Figure 6 Test Circuit 550 MHz 2188f 4 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configurations Order Information Converter Characteristics Analog Input Dynamic Accuracy Internal Reference Characteristics Digital Inputs and Outputs Power Requirements Timing Characteristics Timing Diagrams Typical Performance Characteristics Pin Functions Functional Block Diagram Applications Information Typical Applications Package Description Typical Application Related Parts
converTer characTerisTics The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution (No Missing Codes) l 16 Bits Integral Linearity Error Differential Analog Input (Note 6) l –6.5 ±2 6.5 LSB Differential Linearity Error Differential Analog Input l –0.9 ±0.5 0.9 LSB Offset Error (Note 7) l –7 ±1.5 7 mV Gain Error Internal Reference ±1.5 %FS External Reference l –1.8 –0.5 0.8 %FS Offset Drift ±10 µV/°C Full-Scale Drift Internal Reference ±30 ppm/°C External Reference ±10 ppm/°C Gain Matching ±0.3 %FS Offset Matching ±1.5 mV Transition Noise 3.2 LSBRMS
analog inpuT The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V + – IN Analog Input Range (AIN – AIN ) 1.7V < VDD < 1.9V l 1 to 2 VP-P V + – IN(CM) Analog Input Common Mode (AIN + AIN )/2 Differential Analog Input (Note 8) l 0.7 VCM 1.25 V VSENSE External Voltage Reference Applied to SENSE External Reference Mode l 0.625 1.250 1.300 V IINCM Analog Input Common Mode Current Per Pin, 20Msps 32 µA I + – IN1 Analog Input Leakage Current (No Encode) 0 < AIN , AIN < VDD l –1 1 µA IIN2 PAR/SER Input Leakage Current 0 < PAR/SER < VDD l –3 3 µA IIN3 SENSE Input Leakage Current 0.625 < SENSE < 1.3V l –6 6 µA tAP Sample-and-Hold Acquisition Delay Time 0 ns tJITTER Sample-and-Hold Acquisition Delay Jitter Single-Ended Encode 0.07 psRMS Differential Encode 0.09 psRMS CMRR Analog Input Common Mode Rejection Ratio 80 dB BW-3B Full-Power Bandwidth Figure 6 Test Circuit 550 MHz 2188f 4 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configurations Order Information Converter Characteristics Analog Input Dynamic Accuracy Internal Reference Characteristics Digital Inputs and Outputs Power Requirements Timing Characteristics Timing Diagrams Typical Performance Characteristics Pin Functions Functional Block Diagram Applications Information Typical Applications Package Description Typical Application Related Parts