Datasheet LTC2348-18 (Analog Devices) - 9
| 制造商 | Analog Devices |
| 描述 | Octal, 18-Bit, 200ksps Differential ±10.24V Input SoftSpan ADC with Wide Input Common Mode Range |
| 页数 / 页 | 40 / 9 — Typical perForMance characTerisTics. TA = 25°C, VCC = +15V, VEE = –15V, … |
| 文件格式/大小 | PDF / 1.7 Mb |
| 文件语言 | 英语 |
Typical perForMance characTerisTics. TA = 25°C, VCC = +15V, VEE = –15V, VDD = 5V,
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LTC2348-18
Typical perForMance characTerisTics TA = 25°C, VCC = +15V, VEE = –15V, VDD = 5V, OVDD = 2.5V, Internal Reference and Buffer (VREFBUF = 4.096V), fSMPL = 200ksps, unless otherwise noted. Integral Nonlinearity Integral Nonlinearity Integral Nonlinearity Integral Nonlinearity Differential Nonlinearity Differential Nonlinearity vs Output Code and Channel vs Output Code vs Output Code and Channel vs Output Code vs Output Code and Channel vs Output Code
2.0 2.0 0.5 ±10.24V RANGE ±10.24V RANGE ALL RANGES 1.5 TRUE BIPOLAR DRIVE (IN– = 0V) 1.5 FULLY DIFFERENTIAL DRIVE (IN– = –IN+) 0.4 ALL CHANNELS ALL CHANNELS ALL CHANNELS 0.3 1.0 1.0 0.2 0.5 0.5 0.1 0 0 0.0 –0.5 –0.5 –0.1 INL ERROR (LSB) INL ERROR (LSB) DNL ERROR (LSB) –0.2 –1.0 –1.0 –0.3 –1.5 –1.5 –0.4 –2.0 –2.0 –0.5 –131072 –65536 0 65536 131072 –131072 –65536 0 65536 131072 0 65536 131072 196608 262144 OUTPUT CODE OUTPUT CODE OUTPUT CODE 234818 G01 234818 G02 234818 G03
Integral Nonlinearity Integral Nonlinearity Integral Nonlinearity Integral Nonlinearity Integral Nonlinearity Integral Nonlinearity vs Output Code and Range vs Output Code vs Output Code and Range vs Output Code vs Output Code and Range vs Output Code
2.0 2.0 2.0 TRUE BIPOLAR DRIVE (IN– = 0V) FULLY DIFFERENTIAL DRIVE (IN– = –IN+) UNIPOLAR DRIVE (IN– = 0V) 1.5 ONE CHANNEL 1.5 ONE CHANNEL 1.5 ONE CHANNEL 1.0 ±10.24V AND ±10V 1.0 ±10.24V, ±10V, 1.0 RANGES ±5.12V, AND ±5V ±5.12V AND ±5V 0V TO 5.12V 0.5 0.5 RANGES 0.5 RANGES RANGE 0 0 0 –0.5 –0.5 –0.5 INL ERROR (LSB) INL ERROR (LSB) INL ERROR (LSB) –1.0 –1.0 –1.0 –1.5 –1.5 0V TO 10.24V AND 0V TO 10V –1.5 RANGES –2.0 –2.0 –2.0 –131072 –65536 0 65536 131072 –131072 –65536 0 65536 131072 0 65536 131072 196608 262144 OUTPUT CODE OUTPUT CODE OUTPUT CODE 234818 G04 234818 G05 234818 G06
Integral Nonlinearity Integral Nonlinearity vs Output Code DC Histogram (Zero-Scale) DC Histogram (Near Full-Scale) DC Histogram (Near Full–Scale)
2.0 90000 90000 ±10.24V RANGE ±10.24V RANGE ±10.24V RANGE 1.5 80000 σ = 1.3 80000 σ = 1.4 TRUE BIPOLAR DRIVE (IN– = 0V) 70000 70000 1.0 60000 60000 0.5 50000 50000 0 40000 COUNTS 40000 COUNTS –0.5 INL ERROR (LSB) 30000 30000 –1.0 ARBITRARY DRIVE 20000 20000 IN+/IN– COMMON MODE –1.5 SWEPT –10.24V to 10.24V 10000 10000 –2.0 0 0 –131072 –65536 0 65536 131072 –6 –4 –2 0 2 4 6 131056 131059 131062 131065 131068 OUTPUT CODE CODE CODE 234818 G07 234818 G08 234818 G09 234818fa For more information www.linear.com/LTC2348-18 9 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information 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 Revision History Typical Application Related Parts
Typical perForMance characTerisTics TA = 25°C, VCC = +15V, VEE = –15V, VDD = 5V, OVDD = 2.5V, Internal Reference and Buffer (VREFBUF = 4.096V), fSMPL = 200ksps, unless otherwise noted. Integral Nonlinearity Integral Nonlinearity Integral Nonlinearity Integral Nonlinearity Differential Nonlinearity Differential Nonlinearity vs Output Code and Channel vs Output Code vs Output Code and Channel vs Output Code vs Output Code and Channel vs Output Code
2.0 2.0 0.5 ±10.24V RANGE ±10.24V RANGE ALL RANGES 1.5 TRUE BIPOLAR DRIVE (IN– = 0V) 1.5 FULLY DIFFERENTIAL DRIVE (IN– = –IN+) 0.4 ALL CHANNELS ALL CHANNELS ALL CHANNELS 0.3 1.0 1.0 0.2 0.5 0.5 0.1 0 0 0.0 –0.5 –0.5 –0.1 INL ERROR (LSB) INL ERROR (LSB) DNL ERROR (LSB) –0.2 –1.0 –1.0 –0.3 –1.5 –1.5 –0.4 –2.0 –2.0 –0.5 –131072 –65536 0 65536 131072 –131072 –65536 0 65536 131072 0 65536 131072 196608 262144 OUTPUT CODE OUTPUT CODE OUTPUT CODE 234818 G01 234818 G02 234818 G03
Integral Nonlinearity Integral Nonlinearity Integral Nonlinearity Integral Nonlinearity Integral Nonlinearity Integral Nonlinearity vs Output Code and Range vs Output Code vs Output Code and Range vs Output Code vs Output Code and Range vs Output Code
2.0 2.0 2.0 TRUE BIPOLAR DRIVE (IN– = 0V) FULLY DIFFERENTIAL DRIVE (IN– = –IN+) UNIPOLAR DRIVE (IN– = 0V) 1.5 ONE CHANNEL 1.5 ONE CHANNEL 1.5 ONE CHANNEL 1.0 ±10.24V AND ±10V 1.0 ±10.24V, ±10V, 1.0 RANGES ±5.12V, AND ±5V ±5.12V AND ±5V 0V TO 5.12V 0.5 0.5 RANGES 0.5 RANGES RANGE 0 0 0 –0.5 –0.5 –0.5 INL ERROR (LSB) INL ERROR (LSB) INL ERROR (LSB) –1.0 –1.0 –1.0 –1.5 –1.5 0V TO 10.24V AND 0V TO 10V –1.5 RANGES –2.0 –2.0 –2.0 –131072 –65536 0 65536 131072 –131072 –65536 0 65536 131072 0 65536 131072 196608 262144 OUTPUT CODE OUTPUT CODE OUTPUT CODE 234818 G04 234818 G05 234818 G06
Integral Nonlinearity Integral Nonlinearity vs Output Code DC Histogram (Zero-Scale) DC Histogram (Near Full-Scale) DC Histogram (Near Full–Scale)
2.0 90000 90000 ±10.24V RANGE ±10.24V RANGE ±10.24V RANGE 1.5 80000 σ = 1.3 80000 σ = 1.4 TRUE BIPOLAR DRIVE (IN– = 0V) 70000 70000 1.0 60000 60000 0.5 50000 50000 0 40000 COUNTS 40000 COUNTS –0.5 INL ERROR (LSB) 30000 30000 –1.0 ARBITRARY DRIVE 20000 20000 IN+/IN– COMMON MODE –1.5 SWEPT –10.24V to 10.24V 10000 10000 –2.0 0 0 –131072 –65536 0 65536 131072 –6 –4 –2 0 2 4 6 131056 131059 131062 131065 131068 OUTPUT CODE CODE CODE 234818 G07 234818 G08 234818 G09 234818fa For more information www.linear.com/LTC2348-18 9 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information 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 Revision History Typical Application Related Parts