Datasheet LTC2500-32 (Analog Devices) - 8
| Hersteller | Analog Devices |
| Beschreibung | 32-Bit Over-Sampling ADC with Configurable Digital Filter |
| Seiten / Seite | 54 / 8 — TYPICAL PERFORMANCE CHARACTERISTICS. TA = 25°C, VDD = 2.5V, OVDD = 2.5V, … |
| Dateiformat / Größe | PDF / 1.7 Mb |
| Dokumentensprache | Englisch |
TYPICAL PERFORMANCE CHARACTERISTICS. TA = 25°C, VDD = 2.5V, OVDD = 2.5V, VCM = 2.5V,
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LTC2500-32
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VDD = 2.5V, OVDD = 2.5V, VCM = 2.5V, REF = 5V, fSMPL = 1Msps, no latency output, unless otherwise noted. Integral Nonlinearity vs Input Differential Nonlinearity vs Input Voltage Voltage DC Histogram
2.0 1.0 10000 σ = 2.4ppm 1.5 0.8 0.6 8000 1.0 0.4 0.5 0.2 6000 0 0.0 COUNTS –0.5 DNL (LSB) –0.2 4000 INL ERROR (ppm) –0.4 –1.0 –0.6 2000 –1.5 –0.8 –2.0 –1.0 0 –5 –2.5 0 2.5 5 –5 –2.5 0 2.5 5 –15 –7.5 0 7.5 15 INPUT VOLTAGE (V) INPUT VOLTAGE (V) OUTPUT CODE (ppm) 250032 G01 250032 G02 250032 G03
DC Histogram Filtered Output, DC Histogram Filtered Output, DC Histogram Filtered Output, DF = 4, SSINC Filter DF = 64, SSINC Filter DF = 1024, SSINC Filter
1000 1000 1000 σ = 0.7ppm σ = 0.17ppm σ = 0.049ppm 800 800 800 600 600 600 COUNTS 400 COUNTS 400 COUNTS 400 200 200 200 0 0 0 –4 –3 –2 –1 0 1 2 3 4 –1 –0.5 0 0.5 1 –0.4 –0.2 0 0.2 0.4 OUTPUT CODE (ppm) OUTPUT CODE (ppm) OUTPUT CODE (ppm) 250032 G04 250032 G05 250032 G06
DC Histogram Filtered Output, 128k Point FFT Filtered Output, DF = 16384, SSINC Filter 16k Point FFT fIN = 2kHz fIN = 2kHz, DF = 4, SSINC Filter
1000 0 0 σ = 0.018ppm SNR = 104dB SNR = 116dB –20 THD = –120dB –20 THD = –120dB SINAD = 104dB SINAD = 114dB 800 –40 SFDR = 121dB –40 SFDR = 121dB –60 –60 600 –80 –80 COUNTS –100 –100 400 –120 AMPLITUDE (dBFS) –120 AMPLITUDE (dBFS) 200 –140 –140 –160 –160 0 –180 –180 –0.4 –0.2 0 0.2 0.4 0 125 250 375 500 0 31 62 94 125 OUTPUT CODE (ppm) FREQUENCY (kHz) FREQUENCY (kHz) 250032 G07 250032 G08 250032 G09 250032fb 8 For more information www.linear.com/LTC2500-32 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Converter Characteristics for Filtered Output (SDOA) Dynamic Accuracy for Filtered Output (SDOA) Converter Characteristics for No latency Output (SDOB) Dynamic Accuracy for No Latency Output (SDOB) Reference Input Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Timing Diagram Applications Information Overview Converter Operation Transfer Function Analog Input Input Drive Circuits ADC Reference Dynamic Performance Power Considerations Timing and Control Decimation Filters Digital Filter Types Digital Interface Preset Filter Modes Filtered Output Data No Latency Output Data Board Layout Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VDD = 2.5V, OVDD = 2.5V, VCM = 2.5V, REF = 5V, fSMPL = 1Msps, no latency output, unless otherwise noted. Integral Nonlinearity vs Input Differential Nonlinearity vs Input Voltage Voltage DC Histogram
2.0 1.0 10000 σ = 2.4ppm 1.5 0.8 0.6 8000 1.0 0.4 0.5 0.2 6000 0 0.0 COUNTS –0.5 DNL (LSB) –0.2 4000 INL ERROR (ppm) –0.4 –1.0 –0.6 2000 –1.5 –0.8 –2.0 –1.0 0 –5 –2.5 0 2.5 5 –5 –2.5 0 2.5 5 –15 –7.5 0 7.5 15 INPUT VOLTAGE (V) INPUT VOLTAGE (V) OUTPUT CODE (ppm) 250032 G01 250032 G02 250032 G03
DC Histogram Filtered Output, DC Histogram Filtered Output, DC Histogram Filtered Output, DF = 4, SSINC Filter DF = 64, SSINC Filter DF = 1024, SSINC Filter
1000 1000 1000 σ = 0.7ppm σ = 0.17ppm σ = 0.049ppm 800 800 800 600 600 600 COUNTS 400 COUNTS 400 COUNTS 400 200 200 200 0 0 0 –4 –3 –2 –1 0 1 2 3 4 –1 –0.5 0 0.5 1 –0.4 –0.2 0 0.2 0.4 OUTPUT CODE (ppm) OUTPUT CODE (ppm) OUTPUT CODE (ppm) 250032 G04 250032 G05 250032 G06
DC Histogram Filtered Output, 128k Point FFT Filtered Output, DF = 16384, SSINC Filter 16k Point FFT fIN = 2kHz fIN = 2kHz, DF = 4, SSINC Filter
1000 0 0 σ = 0.018ppm SNR = 104dB SNR = 116dB –20 THD = –120dB –20 THD = –120dB SINAD = 104dB SINAD = 114dB 800 –40 SFDR = 121dB –40 SFDR = 121dB –60 –60 600 –80 –80 COUNTS –100 –100 400 –120 AMPLITUDE (dBFS) –120 AMPLITUDE (dBFS) 200 –140 –140 –160 –160 0 –180 –180 –0.4 –0.2 0 0.2 0.4 0 125 250 375 500 0 31 62 94 125 OUTPUT CODE (ppm) FREQUENCY (kHz) FREQUENCY (kHz) 250032 G07 250032 G08 250032 G09 250032fb 8 For more information www.linear.com/LTC2500-32 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Converter Characteristics for Filtered Output (SDOA) Dynamic Accuracy for Filtered Output (SDOA) Converter Characteristics for No latency Output (SDOB) Dynamic Accuracy for No Latency Output (SDOB) Reference Input Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Timing Diagram Applications Information Overview Converter Operation Transfer Function Analog Input Input Drive Circuits ADC Reference Dynamic Performance Power Considerations Timing and Control Decimation Filters Digital Filter Types Digital Interface Preset Filter Modes Filtered Output Data No Latency Output Data Board Layout Package Description Revision History Typical Application Related Parts