Datasheet LTC2341-18 (Analog Devices) - 9
| 制造商 | Analog Devices |
| 描述 | Dual, 18-Bit, 666ksps/ch Differential SoftSpan ADC with Wide Input Common Mode Range |
| 页数 / 页 | 38 / 9 — Typical perForMance. characTerisTics. TA = 25°C, VDD = 5V, OVDD = 2.5V, … |
| 文件格式/大小 | PDF / 2.0 Mb |
| 文件语言 | 英语 |
Typical perForMance. characTerisTics. TA = 25°C, VDD = 5V, OVDD = 2.5V, Internal
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LTC2341-18
Typical perForMance characTerisTics TA = 25°C, VDD = 5V, OVDD = 2.5V, Internal Reference and Buffer (VREFBUF = 4.096V), fSMPL = 666ksps, unless otherwise noted. Integral Nonlinearity Differential Nonlinearity Integral Nonlinearity vs Output Code and Channel vs Output Code and Channel vs Output Code and Range
2.0 1.00 2.0 ±4.096V RANGE ALL RANGES BIPOLAR DRIVE (IN– = 2.5V) 1.5 FULLY DIFFERENTIAL DRIVE (IN– = –IN+) ALL CHANNELS 0.75 1.5 ONE CHANNEL ALL CHANNELS 1.0 0.50 1.0 ±2.048V AND ±2V 0.5 0.25 RANGES 0.5 0 0 0 –0.5 –0.25 –0.5 INL ERROR (LSB) DNL ERROR (LSB) INL ERROR (LSB) –1.0 –0.50 –1.0 –1.5 –0.75 –1.5 –2.0 –1.00 –2.0 –131072 –65536 0 65536 131072 0 65536 131072 196608 262144 –131072 –65536 0 65536 131072 OUTPUT CODE OUTPUT CODE OUTPUT CODE 234118 G01 234118 G02 234118 G03
Integral Nonlinearity Integral Nonlinearity Integral Nonlinearity vs Output Code and Range vs Output Code and Range vs Output Code
4.0 4.0 2.0 FULLY DIFFERENTIAL DRIVE (IN– = –IN+) UNIPOLAR DRIVE (IN– = 0V) ±4.096V RANGE 3.0 ONE CHANNEL ONE CHANNEL 3.0 1.5 ARBITRARY DRIVE 2.0 2.0 1.0 IN+/IN– COMMON MODE SWEPT 0V TO 5V ±2.048V AND ±2V 0V TO 2.048V RANGE 1.0 1.0 0.5 RANGES 0 0 0 –1.0 –1.0 –0.5 INL ERROR (LSB) 0V TO 4.096V AND 0V TO 4V RANGES ±4.096V AND ±4V INL ERROR (LSB) INL ERROR (LSB) –2.0 RANGES –2.0 –1.0 –3.0 –3.0 –1.5 FULLY DIFFERENTIAL DRIVE (IN– = –IN+) –4.0 –4.0 –2.0 –131072 –65536 0 65536 131072 0 65536 131072 196608 262144 –131072 –65536 0 65536 131072 OUTPUT CODE OUTPUT CODE OUTPUT CODE 234118 G04 234118 G05 234118 G06
32k Point FFT fSMPL = 666kHz, DC Histogram (Zero-Scale) DC Histogram (Near Full-Scale) fIN = 2kHz
80000 80000 0 ±4.096V RANGE ±4.096V RANGE ±4.096V RANGE σ = 1.5 σ = 1.6 –20 σ = 2.2 FULLY DIFFERENTIAL DRIVE (IN– = –IN+) SNR = 95.1dB 60000 –40 60000 THD = –111dB –60 SINAD = 95.0dB SFDR = 112dB –80 40000 40000 COUNTS –100 COUNTS –120 AMPLITUDE (dBFS) 20000 20000 –140 –160 0 0 –180 –10 –8 –6 –4 –2 0 2 4 6 8 10 131052 131056 131060 131064 131068 131072 0 111 222 333 CODE CODE FREQUENCY (kHz) 234118 G07 234118 G08 234118 G09 234118f For more information www.linear.com/LTC2341-18 9 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 ADC Timing Characteristics 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
Typical perForMance characTerisTics TA = 25°C, VDD = 5V, OVDD = 2.5V, Internal Reference and Buffer (VREFBUF = 4.096V), fSMPL = 666ksps, unless otherwise noted. Integral Nonlinearity Differential Nonlinearity Integral Nonlinearity vs Output Code and Channel vs Output Code and Channel vs Output Code and Range
2.0 1.00 2.0 ±4.096V RANGE ALL RANGES BIPOLAR DRIVE (IN– = 2.5V) 1.5 FULLY DIFFERENTIAL DRIVE (IN– = –IN+) ALL CHANNELS 0.75 1.5 ONE CHANNEL ALL CHANNELS 1.0 0.50 1.0 ±2.048V AND ±2V 0.5 0.25 RANGES 0.5 0 0 0 –0.5 –0.25 –0.5 INL ERROR (LSB) DNL ERROR (LSB) INL ERROR (LSB) –1.0 –0.50 –1.0 –1.5 –0.75 –1.5 –2.0 –1.00 –2.0 –131072 –65536 0 65536 131072 0 65536 131072 196608 262144 –131072 –65536 0 65536 131072 OUTPUT CODE OUTPUT CODE OUTPUT CODE 234118 G01 234118 G02 234118 G03
Integral Nonlinearity Integral Nonlinearity Integral Nonlinearity vs Output Code and Range vs Output Code and Range vs Output Code
4.0 4.0 2.0 FULLY DIFFERENTIAL DRIVE (IN– = –IN+) UNIPOLAR DRIVE (IN– = 0V) ±4.096V RANGE 3.0 ONE CHANNEL ONE CHANNEL 3.0 1.5 ARBITRARY DRIVE 2.0 2.0 1.0 IN+/IN– COMMON MODE SWEPT 0V TO 5V ±2.048V AND ±2V 0V TO 2.048V RANGE 1.0 1.0 0.5 RANGES 0 0 0 –1.0 –1.0 –0.5 INL ERROR (LSB) 0V TO 4.096V AND 0V TO 4V RANGES ±4.096V AND ±4V INL ERROR (LSB) INL ERROR (LSB) –2.0 RANGES –2.0 –1.0 –3.0 –3.0 –1.5 FULLY DIFFERENTIAL DRIVE (IN– = –IN+) –4.0 –4.0 –2.0 –131072 –65536 0 65536 131072 0 65536 131072 196608 262144 –131072 –65536 0 65536 131072 OUTPUT CODE OUTPUT CODE OUTPUT CODE 234118 G04 234118 G05 234118 G06
32k Point FFT fSMPL = 666kHz, DC Histogram (Zero-Scale) DC Histogram (Near Full-Scale) fIN = 2kHz
80000 80000 0 ±4.096V RANGE ±4.096V RANGE ±4.096V RANGE σ = 1.5 σ = 1.6 –20 σ = 2.2 FULLY DIFFERENTIAL DRIVE (IN– = –IN+) SNR = 95.1dB 60000 –40 60000 THD = –111dB –60 SINAD = 95.0dB SFDR = 112dB –80 40000 40000 COUNTS –100 COUNTS –120 AMPLITUDE (dBFS) 20000 20000 –140 –160 0 0 –180 –10 –8 –6 –4 –2 0 2 4 6 8 10 131052 131056 131060 131064 131068 131072 0 111 222 333 CODE CODE FREQUENCY (kHz) 234118 G07 234118 G08 234118 G09 234118f For more information www.linear.com/LTC2341-18 9 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 ADC Timing Characteristics 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