Datasheet LTC2500-32 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | 32-Bit Over-Sampling ADC with Configurable Digital Filter |
| 页数 / 页 | 54 / 4 — ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply … |
| 文件格式/大小 | PDF / 1.7 Mb |
| 文件语言 | 英语 |
ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply over the full operating
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LTC2500-32
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
V + IN Absolute Input Range (IN+) (Note 5) l 0 VREF V V – IN Absolute Input Range (IN–) (Note 5) l 0 VREF V V + – + – IN – VIN Input Differential Voltage Range VIN = VIN – VIN l −VREF VREF V VCM Common Mode Input Range l 0 VREF V IIN Analog Input Leakage Current 10 nA CIN Analog Input Capacitance Sample Mode 45 pF Hold Mode 5 pF CMRR Input Common Mode Rejection Ratio No Latency Output 128 dB V + – IN = VIN = 4.5VP-P, 2kHz Sine
CONVERTER CHARACTERISTICS FOR FILTERED OUTPUT (SDOA) 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 32 Bits No Missing Codes l 32 Bits Transition Noise (Note 6) See Table 2 DF Down-Sampling Factor 4 16384 INL Integral Linearity Error (Notes 7, 8) l –2 ±0.5 2 ppm ZSE Zero-Scale Error (Notes 7, 9) l 13 0 13 ppm Zero-Scale Error Drift (Note 7) ±7 ppb/°C FSE Full-Scale Error (Notes 7, 9) l –100 ±10 100 ppm Full-Scale Error Drift (Note 7) ±0.05 ppm/°C
DYNAMIC ACCURACY FOR FILTERED OUTPUT (SDOA) The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C and ssinc filter. (Notes 4, 9) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
DR Dynamic Range DF = 4 l 110 116 dB IN+ = IN– = VCM, VREF = 5V, DF = 64 l 122 128 dB IN+ = IN– = VCM, VREF = 5V, DF = 1024 l 129.5 138 dB
CONVERTER CHARACTERISTICS FOR NO LATENCY OUTPUT (SDOB) The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Notes 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution: Differential l 24 Bits Common Mode l 7 Bits No Missing Codes: Differential l 24 Bits Common Mode l 7 Bits Transition Noise: Differential 2.3 ppmRMS Common Mode 1 LSBRMS 250032fb 4 For more information www.linear.com/LTC2500-32 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Converter Characteristics for Filtered Output (SDOA) Dynamic Accuracy for Filtered Output (SDOA) Converter Characteristics for No latency Output (SDOB) Dynamic Accuracy for No Latency Output (SDOB) Reference Input Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Timing Diagram Applications Information Overview Converter Operation Transfer Function Analog Input Input Drive Circuits ADC Reference Dynamic Performance Power Considerations Timing and Control Decimation Filters Digital Filter Types Digital Interface Preset Filter Modes Filtered Output Data No Latency Output Data 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
V + IN Absolute Input Range (IN+) (Note 5) l 0 VREF V V – IN Absolute Input Range (IN–) (Note 5) l 0 VREF V V + – + – IN – VIN Input Differential Voltage Range VIN = VIN – VIN l −VREF VREF V VCM Common Mode Input Range l 0 VREF V IIN Analog Input Leakage Current 10 nA CIN Analog Input Capacitance Sample Mode 45 pF Hold Mode 5 pF CMRR Input Common Mode Rejection Ratio No Latency Output 128 dB V + – IN = VIN = 4.5VP-P, 2kHz Sine
CONVERTER CHARACTERISTICS FOR FILTERED OUTPUT (SDOA) 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 32 Bits No Missing Codes l 32 Bits Transition Noise (Note 6) See Table 2 DF Down-Sampling Factor 4 16384 INL Integral Linearity Error (Notes 7, 8) l –2 ±0.5 2 ppm ZSE Zero-Scale Error (Notes 7, 9) l 13 0 13 ppm Zero-Scale Error Drift (Note 7) ±7 ppb/°C FSE Full-Scale Error (Notes 7, 9) l –100 ±10 100 ppm Full-Scale Error Drift (Note 7) ±0.05 ppm/°C
DYNAMIC ACCURACY FOR FILTERED OUTPUT (SDOA) The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C and ssinc filter. (Notes 4, 9) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
DR Dynamic Range DF = 4 l 110 116 dB IN+ = IN– = VCM, VREF = 5V, DF = 64 l 122 128 dB IN+ = IN– = VCM, VREF = 5V, DF = 1024 l 129.5 138 dB
CONVERTER CHARACTERISTICS FOR NO LATENCY OUTPUT (SDOB) The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Notes 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution: Differential l 24 Bits Common Mode l 7 Bits No Missing Codes: Differential l 24 Bits Common Mode l 7 Bits Transition Noise: Differential 2.3 ppmRMS Common Mode 1 LSBRMS 250032fb 4 For more information www.linear.com/LTC2500-32 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Converter Characteristics for Filtered Output (SDOA) Dynamic Accuracy for Filtered Output (SDOA) Converter Characteristics for No latency Output (SDOB) Dynamic Accuracy for No Latency Output (SDOB) Reference Input Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Timing Diagram Applications Information Overview Converter Operation Transfer Function Analog Input Input Drive Circuits ADC Reference Dynamic Performance Power Considerations Timing and Control Decimation Filters Digital Filter Types Digital Interface Preset Filter Modes Filtered Output Data No Latency Output Data Board Layout Package Description Revision History Typical Application Related Parts