Datasheet LTC2460, LTC2462 (Analog Devices) - 3
| 制造商 | Analog Devices |
| 描述 | Ultra-Tiny, 16-Bit ΔΣ ADCs with 10ppm/°C Max Precision Reference |
| 页数 / 页 | 22 / 3 — elecTrical characTerisTics. The. denotes the specifications which apply … |
| 文件格式/大小 | PDF / 317 Kb |
| 文件语言 | 英语 |
elecTrical characTerisTics. The. denotes the specifications which apply over the full operating
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LTC2460/LTC2462
elecTrical characTerisTics The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 2) PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution (No Missing Codes) (Note 3) l 16 Bits Integral Nonlinearity (Note 4) l 1 10 LSB Offset Error l 2 15 LSB Offset Error Drift 0.02 LSB/°C Gain Error Includes Contributions of ADC and Internal Reference l ±0.01 ±0.25 % of FS Gain Error Drift Includes Contributions of ADC and Internal Reference C-Grade l ±2 ±10 ppm/°C I-Grade l ±5 ppm/°C Transition Noise 2.2 µVRMS Power Supply Rejection DC 80 dB
analog inpuTs The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V + IN Positive Input Voltage Range LTC2462 l 0 VREF V V – IN Negative Input Voltage Range LTC2462 l 0 VREF V VIN Input Voltage Range LTC2460 l 0 VREF V V + + – OR , VUR Overrange/Underrange Voltage, IN+ VIN = 0.625V (See Figure 3) 8 LSB V – – + OR , VUR Overrange/Underrange Voltage, IN– VIN = 0.625V (See Figure 3) 8 LSB CIN IN+, IN–, IN Sampling Capacitance 0.35 pF IDC_LEAK(IN+, IN–, IN) IN+, IN– DC Leakage Current (LTC2462) VIN = GND (Note 8) l –10 1 10 nA IN DC Leakage Current (LTC2460) VIN = VCC (Note 8) l –10 1 10 nA IDC_LEAK(IN–) IN– DC Leakage Current VIN = GND (Note 8) l –10 1 10 nA VIN = VCC (Note 8) l –10 1 10 nA ICONV Input Sampling Current (Note 5) 50 nA VREF Reference Output Voltage l 1.247 1.25 1.253 V Reference Voltage Coefficient (Note 11) C-Grade l ±2 ±10 ppm/°C I-Grade ±5 ppm/°C Reference Line Regulation 2.7V ≤ VCC ≤ 5.5V –90 dB Reference Short Circuit Current VCC = 5.5, Forcing Output to GND l 35 mA COMP Pin Short Circuit Current VCC = 5.5, Forcing Output to GND l 200 µA Reference Load Regulation 2.7V ≤ VCC ≤ 5.5V, IOUT = 100μA Sourcing 3.5 mV/mA Reference Output Noise Density CCOMP= 0.1μF, CREFOUT = 0.1μF, At f = 1kHz 30 nV/√Hz
power requireMenTs The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VCC Supply Voltage l 2.7 5.5 V ICC Supply Current Conversion l 1.5 2.5 mA Nap l 800 1500 µA Sleep l 0.2 2 µA 24602fa 3 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Analog Inputs Power Requirements Digital Inputs and Digital Outputs Timing Characteristics Typical Performance Characteristics Pin Functions Applications Information 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 2) PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution (No Missing Codes) (Note 3) l 16 Bits Integral Nonlinearity (Note 4) l 1 10 LSB Offset Error l 2 15 LSB Offset Error Drift 0.02 LSB/°C Gain Error Includes Contributions of ADC and Internal Reference l ±0.01 ±0.25 % of FS Gain Error Drift Includes Contributions of ADC and Internal Reference C-Grade l ±2 ±10 ppm/°C I-Grade l ±5 ppm/°C Transition Noise 2.2 µVRMS Power Supply Rejection DC 80 dB
analog inpuTs The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V + IN Positive Input Voltage Range LTC2462 l 0 VREF V V – IN Negative Input Voltage Range LTC2462 l 0 VREF V VIN Input Voltage Range LTC2460 l 0 VREF V V + + – OR , VUR Overrange/Underrange Voltage, IN+ VIN = 0.625V (See Figure 3) 8 LSB V – – + OR , VUR Overrange/Underrange Voltage, IN– VIN = 0.625V (See Figure 3) 8 LSB CIN IN+, IN–, IN Sampling Capacitance 0.35 pF IDC_LEAK(IN+, IN–, IN) IN+, IN– DC Leakage Current (LTC2462) VIN = GND (Note 8) l –10 1 10 nA IN DC Leakage Current (LTC2460) VIN = VCC (Note 8) l –10 1 10 nA IDC_LEAK(IN–) IN– DC Leakage Current VIN = GND (Note 8) l –10 1 10 nA VIN = VCC (Note 8) l –10 1 10 nA ICONV Input Sampling Current (Note 5) 50 nA VREF Reference Output Voltage l 1.247 1.25 1.253 V Reference Voltage Coefficient (Note 11) C-Grade l ±2 ±10 ppm/°C I-Grade ±5 ppm/°C Reference Line Regulation 2.7V ≤ VCC ≤ 5.5V –90 dB Reference Short Circuit Current VCC = 5.5, Forcing Output to GND l 35 mA COMP Pin Short Circuit Current VCC = 5.5, Forcing Output to GND l 200 µA Reference Load Regulation 2.7V ≤ VCC ≤ 5.5V, IOUT = 100μA Sourcing 3.5 mV/mA Reference Output Noise Density CCOMP= 0.1μF, CREFOUT = 0.1μF, At f = 1kHz 30 nV/√Hz
power requireMenTs The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VCC Supply Voltage l 2.7 5.5 V ICC Supply Current Conversion l 1.5 2.5 mA Nap l 800 1500 µA Sleep l 0.2 2 µA 24602fa 3 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Analog Inputs Power Requirements Digital Inputs and Digital Outputs Timing Characteristics Typical Performance Characteristics Pin Functions Applications Information Package Description Revision History Typical Application Related Parts