Datasheet LTC2335-18 (Analog Devices) - 10
| Manufacturer | Analog Devices |
| Description | 18-Bit, 1Msps 8-Channel Differential ±10.24V Input SoftSpan ADC with Wide Input Common Mode Range |
| Pages / Page | 40 / 10 — Typical perForMance characTerisTics. TA = 25°C, VCC = +15V, VEE = –15V, … |
| File Format / Size | PDF / 2.1 Mb |
| Document Language | English |
Typical perForMance characTerisTics. TA = 25°C, VCC = +15V, VEE = –15V, VDD = 5V,
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LTC2335-18
Typical perForMance characTerisTics TA = 25°C, VCC = +15V, VEE = –15V, VDD = 5V, OVDD = 2.5V, Internal Reference and Buffer (VREFBUF = 4.096V), fSMPL = 1Msps, unless otherwise noted. 32k Point Arbitrary Two-Tone FFT 32k Point FFT fSMPL = 1Msps, 32k Point FFT fSMPL = 1Msps, f f SMPL = 1Msps, IN+ = –7dBFS 2kHz IN = 2kHz fIN = 2kHz Sine, IN– = –7dBFS 3.1kHz Sine
0 0 0 ±10.24V RANGE ±10.24V RANGE ±10.24V RANGE –20 TRUE BIPOLAR DRIVE (IN– = 0V) –20 FULLY DIFFERENTIAL DRIVE (IN– = –IN+) –20 ARBITRARY DRIVE –40 SNR = 96.9dB –40 SNR = 96.7dB –40 SFDR = 119dB THD = –109dB THD = –124dB SNR = 96.7dB –60 SINAD = 96.7dB –60 SINAD = 96.7dB –60 SFDR = 111dB SFDR = 119dB –80 –80 –80 –100 –100 –100 –120 AMPLITUDE (dBFS) –120 AMPLITUDE (dBFS) –120 AMPLITUDE (dBFS) –140 –140 –140 –160 –160 –160 –180 –180 –180 0 100 200 300 400 500 0 100 200 300 400 500 0 100 200 300 400 500 FREQUENCY (kHz) FREQUENCY (kHz) FREQUENCY (kHz) 233518 G10 233518 G11 233518 G12
32k Point FFT fSMPL = 1Msps, SNR, SINAD vs VREFBUF, THD, Harmonics vs VREFBUF, fIN = 2kHz fIN = 2kHz fIN = 2kHz
0 100.0 –100 ±5.12V RANGE ±2.5 • VREFBUF RANGE ±2.5 • VREFBUF RANGE –20 TRUE BIPOLAR DRIVE (IN– = 0V) TRUE BIPOLAR DRIVE (IN– = 0V) TRUE BIPOLAR DRIVE (IN– = 0V) –105 –40 SNR = 93.4dB 98.0 THD = –118dB SNR THD –60 SINAD = 93.4dB –110 SFDR = 120dB 96.0 SINAD –80 2ND –115 –100 94.0 3RD –120 AMPLITUDE (dBFS) SNR, SINAD (dBFS) –120 –140 THD, HARMONICS (dBFS) 92.0 –125 –160 –180 90.0 –130 0 100 200 300 400 500 2.5 3 3.5 4 4.5 5 2.5 3 3.5 4 4.5 5 FREQUENCY (kHz) REFBUF VOLTAGE (V) REFBUF VOLTAGE (V) 233518 G13 233518 G14 233518 G15
SNR, SINAD THD, Harmonics THD, Harmonics vs Input vs Input Frequency vs Input Frequency Common Mode, fIN = 2kHz
100.0 –70 ±10.24V RANGE 0 ±10.24V RANGE TRUE BIPOLAR DRIVE (IN– = 0V) 2V –20 P-P FULLY DIFFERENTIAL DRIVE 96.0 –80 SNR –40 92.0 –90 –60 SINAD 88.0 –100 –80 THD –100 84.0 –110 3RD SNR, SINAD (dBFS) THD, HARMONICS (dBFS) THD, HARMONICS (dBFS) –120 80.0 –120 2ND THD ±10.24V RANGE –140 TRUE BIPOLAR DRIVE (IN– = 0V) 76.0 –130 2ND 3RD –160 10 100 1k 10k 100k 10 100 1k 10k 100k –15 –10 –5 0 5 10 15 FREQUENCY (Hz) FREQUENCY (Hz) INPUT COMMON MODE (V) 233518 G16 233518 G17 233518 G18 233518f 10 For more information www.linear.com/LTC2335-18 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 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 = 1Msps, unless otherwise noted. 32k Point Arbitrary Two-Tone FFT 32k Point FFT fSMPL = 1Msps, 32k Point FFT fSMPL = 1Msps, f f SMPL = 1Msps, IN+ = –7dBFS 2kHz IN = 2kHz fIN = 2kHz Sine, IN– = –7dBFS 3.1kHz Sine
0 0 0 ±10.24V RANGE ±10.24V RANGE ±10.24V RANGE –20 TRUE BIPOLAR DRIVE (IN– = 0V) –20 FULLY DIFFERENTIAL DRIVE (IN– = –IN+) –20 ARBITRARY DRIVE –40 SNR = 96.9dB –40 SNR = 96.7dB –40 SFDR = 119dB THD = –109dB THD = –124dB SNR = 96.7dB –60 SINAD = 96.7dB –60 SINAD = 96.7dB –60 SFDR = 111dB SFDR = 119dB –80 –80 –80 –100 –100 –100 –120 AMPLITUDE (dBFS) –120 AMPLITUDE (dBFS) –120 AMPLITUDE (dBFS) –140 –140 –140 –160 –160 –160 –180 –180 –180 0 100 200 300 400 500 0 100 200 300 400 500 0 100 200 300 400 500 FREQUENCY (kHz) FREQUENCY (kHz) FREQUENCY (kHz) 233518 G10 233518 G11 233518 G12
32k Point FFT fSMPL = 1Msps, SNR, SINAD vs VREFBUF, THD, Harmonics vs VREFBUF, fIN = 2kHz fIN = 2kHz fIN = 2kHz
0 100.0 –100 ±5.12V RANGE ±2.5 • VREFBUF RANGE ±2.5 • VREFBUF RANGE –20 TRUE BIPOLAR DRIVE (IN– = 0V) TRUE BIPOLAR DRIVE (IN– = 0V) TRUE BIPOLAR DRIVE (IN– = 0V) –105 –40 SNR = 93.4dB 98.0 THD = –118dB SNR THD –60 SINAD = 93.4dB –110 SFDR = 120dB 96.0 SINAD –80 2ND –115 –100 94.0 3RD –120 AMPLITUDE (dBFS) SNR, SINAD (dBFS) –120 –140 THD, HARMONICS (dBFS) 92.0 –125 –160 –180 90.0 –130 0 100 200 300 400 500 2.5 3 3.5 4 4.5 5 2.5 3 3.5 4 4.5 5 FREQUENCY (kHz) REFBUF VOLTAGE (V) REFBUF VOLTAGE (V) 233518 G13 233518 G14 233518 G15
SNR, SINAD THD, Harmonics THD, Harmonics vs Input vs Input Frequency vs Input Frequency Common Mode, fIN = 2kHz
100.0 –70 ±10.24V RANGE 0 ±10.24V RANGE TRUE BIPOLAR DRIVE (IN– = 0V) 2V –20 P-P FULLY DIFFERENTIAL DRIVE 96.0 –80 SNR –40 92.0 –90 –60 SINAD 88.0 –100 –80 THD –100 84.0 –110 3RD SNR, SINAD (dBFS) THD, HARMONICS (dBFS) THD, HARMONICS (dBFS) –120 80.0 –120 2ND THD ±10.24V RANGE –140 TRUE BIPOLAR DRIVE (IN– = 0V) 76.0 –130 2ND 3RD –160 10 100 1k 10k 100k 10 100 1k 10k 100k –15 –10 –5 0 5 10 15 FREQUENCY (Hz) FREQUENCY (Hz) INPUT COMMON MODE (V) 233518 G16 233518 G17 233518 G18 233518f 10 For more information www.linear.com/LTC2335-18 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 Typical Application Related Parts
