Datasheet LTC2358-18 (Analog Devices) - 3
| Hersteller | Analog Devices |
| Beschreibung | Buffered Octal, 18-Bit, 200ksps/Ch Differential ±10.24V ADC with 30VP-P Common Mode Range |
| Seiten / Seite | 38 / 3 — ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply … |
| Dateiformat / Größe | PDF / 2.3 Mb |
| Dokumentensprache | Englisch |
ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply over the full operating
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LTC2358-18
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 6) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN+ Absolute Input Range (Note 7) l VEE + 4 VCC – 4 V (IN0+ to IN7+) VIN– Absolute Input Range (Note 7) l VEE + 4 VCC – 4 V (IN0– to IN7–) VIN+ – VIN– Input Differential Voltage SoftSpan 7: ±2.5 • VREFBUF Range (Note 7) l –2.5 • VREFBUF 2.5 • VREFBUF V Range SoftSpan 6: ±2.5 • VREFBUF/1.024 Range (Note 7) l –2.5 • VREFBUF/1.024 2.5 • VREFBUF/1.024 V SoftSpan 5: 0V to 2.5 • VREFBUF Range (Note 7) l 0 2.5 • VREFBUF V SoftSpan 4: 0V to 2.5 • VREFBUF/1.024 Range (Note 7) l 0 2.5 • VREFBUF/1.024 V SoftSpan 3: ±1.25 • VREFBUF Range (Note 7) l –1.25 • VREFBUF 1.25 • VREFBUF V SoftSpan 2: ±1.25 • VREFBUF/1.024 Range (Note 7) l –1.25 • VREFBUF/1.024 1.25 • VREFBUF/1.024 V SoftSpan 1: 0V to 1.25 • VREFBUF Range (Note 7) l 0 1.25 • VREFBUF V VCM Input Common Mode Voltage (Note 7) l VEE + 4 VCC – 4 V Range VIN+ – VIN– Input Differential Overdrive (Note 8) l −(VCC − VEE) (VCC − VEE) V Tolerance IOVERDRIVE Input Overdrive VIN+ > VCC, VIN– > VCC (Note 8) l
10 mA Current Tolerance VIN+ < VEE, VIN– < VEE (Note 8) l 0 mA IIN Analog Input Leakage Current 5 pA C-Grade and I-Grade l 500 pA H-Grade l 12 nA RIN Analog Input Resistance For Each Pin >1000 GΩ CIN Analog Input Capacitance 3 pF CMRR Input Common Mode VIN+ = VIN− = 18VP-P 200Hz Sine l 100 128 dB Rejection Ratio VIHCNV CNV High Level Input Voltage l 1.3 V VILCNV CNV Low Level Input Voltage l 0.5 V IINCNV CNV Input Current VIN = 0V to VDD l –10 10 μA
CONVERTER CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 9) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution l 18 Bits No Missing Codes l 18 Bits Transition Noise SoftSpans 7 and 6: ±10.24V and ±10V Ranges 1.4 LSBRMS SoftSpans 5 and 4: 0V to 10.24V and 0V to 10V Ranges 2.8 LSBRMS SoftSpans 3 and 2: ±5.12V and ±5V Ranges 2.1 LSBRMS SoftSpan 1: 0V to 5.12V Range 4.2 LSBRMS INL Integral Linearity Error SoftSpans 7 and 6: ±10.24V and ±10V Ranges (Note 10) l –3.5 ±1 3.5 LSB SoftSpans 5 and 4: 0V to 10.24V and 0V to 10V Ranges (Note 10) l –4 ±1.5 4 LSB SoftSpans 3 and 2: ±5.12V and ±5V Ranges (Note 10) l –4 ±0.75 4 LSB SoftSpan 1: 0V to 5.12V Range (Note 10) l –6 ±0.75 6 LSB DNL Differential Linearity Error (Note 11) l −0.9 ±0.2 0.9 LSB ZSE Zero-Scale Error (Note 12) l −700 ±160 700 μV Zero-Scale Error Drift ±4 μV/°C FSE Full-Scale Error VREFBUF = 4.096V (REFBUF Overdriven) (Note 12) l −0.1 ±0.025 0.1 %FS Full-Scale Error Drift VREFBUF = 4.096V (REFBUF Overdriven) (Note 12) ±2.5 ppm/°C 235818f For more information www.linear.com/LTC2358-18 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Converter Characteristics Dynamic Accuracy Internal Reference Characteristics Reference Buffer Characteristics Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Configuration Tables Functional Block Diagram Timing Diagram Applications Information Board Layout Package Description 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 6) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN+ Absolute Input Range (Note 7) l VEE + 4 VCC – 4 V (IN0+ to IN7+) VIN– Absolute Input Range (Note 7) l VEE + 4 VCC – 4 V (IN0– to IN7–) VIN+ – VIN– Input Differential Voltage SoftSpan 7: ±2.5 • VREFBUF Range (Note 7) l –2.5 • VREFBUF 2.5 • VREFBUF V Range SoftSpan 6: ±2.5 • VREFBUF/1.024 Range (Note 7) l –2.5 • VREFBUF/1.024 2.5 • VREFBUF/1.024 V SoftSpan 5: 0V to 2.5 • VREFBUF Range (Note 7) l 0 2.5 • VREFBUF V SoftSpan 4: 0V to 2.5 • VREFBUF/1.024 Range (Note 7) l 0 2.5 • VREFBUF/1.024 V SoftSpan 3: ±1.25 • VREFBUF Range (Note 7) l –1.25 • VREFBUF 1.25 • VREFBUF V SoftSpan 2: ±1.25 • VREFBUF/1.024 Range (Note 7) l –1.25 • VREFBUF/1.024 1.25 • VREFBUF/1.024 V SoftSpan 1: 0V to 1.25 • VREFBUF Range (Note 7) l 0 1.25 • VREFBUF V VCM Input Common Mode Voltage (Note 7) l VEE + 4 VCC – 4 V Range VIN+ – VIN– Input Differential Overdrive (Note 8) l −(VCC − VEE) (VCC − VEE) V Tolerance IOVERDRIVE Input Overdrive VIN+ > VCC, VIN– > VCC (Note 8) l
10 mA Current Tolerance VIN+ < VEE, VIN– < VEE (Note 8) l 0 mA IIN Analog Input Leakage Current 5 pA C-Grade and I-Grade l 500 pA H-Grade l 12 nA RIN Analog Input Resistance For Each Pin >1000 GΩ CIN Analog Input Capacitance 3 pF CMRR Input Common Mode VIN+ = VIN− = 18VP-P 200Hz Sine l 100 128 dB Rejection Ratio VIHCNV CNV High Level Input Voltage l 1.3 V VILCNV CNV Low Level Input Voltage l 0.5 V IINCNV CNV Input Current VIN = 0V to VDD l –10 10 μA
CONVERTER CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 9) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution l 18 Bits No Missing Codes l 18 Bits Transition Noise SoftSpans 7 and 6: ±10.24V and ±10V Ranges 1.4 LSBRMS SoftSpans 5 and 4: 0V to 10.24V and 0V to 10V Ranges 2.8 LSBRMS SoftSpans 3 and 2: ±5.12V and ±5V Ranges 2.1 LSBRMS SoftSpan 1: 0V to 5.12V Range 4.2 LSBRMS INL Integral Linearity Error SoftSpans 7 and 6: ±10.24V and ±10V Ranges (Note 10) l –3.5 ±1 3.5 LSB SoftSpans 5 and 4: 0V to 10.24V and 0V to 10V Ranges (Note 10) l –4 ±1.5 4 LSB SoftSpans 3 and 2: ±5.12V and ±5V Ranges (Note 10) l –4 ±0.75 4 LSB SoftSpan 1: 0V to 5.12V Range (Note 10) l –6 ±0.75 6 LSB DNL Differential Linearity Error (Note 11) l −0.9 ±0.2 0.9 LSB ZSE Zero-Scale Error (Note 12) l −700 ±160 700 μV Zero-Scale Error Drift ±4 μV/°C FSE Full-Scale Error VREFBUF = 4.096V (REFBUF Overdriven) (Note 12) l −0.1 ±0.025 0.1 %FS Full-Scale Error Drift VREFBUF = 4.096V (REFBUF Overdriven) (Note 12) ±2.5 ppm/°C 235818f For more information www.linear.com/LTC2358-18 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Converter Characteristics Dynamic Accuracy Internal Reference Characteristics Reference Buffer Characteristics Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Configuration Tables Functional Block Diagram Timing Diagram Applications Information Board Layout Package Description Typical Application Related Parts