Datasheet AD7693 (Analog Devices) - 10
| Hersteller | Analog Devices |
| Beschreibung | 16-Bit, ±0.5 LSB, 500 kSPS PulSAR® Differential A/D Converter in MSOP/QFN |
| Seiten / Seite | 25 / 10 — Data Sheet. AD7693. TYPICAL PERFORMANCE CHARACTERISTICS. 1.0. POSITIVE … |
| Revision | C |
| Dateiformat / Größe | PDF / 750 Kb |
| Dokumentensprache | Englisch |
Data Sheet. AD7693. TYPICAL PERFORMANCE CHARACTERISTICS. 1.0. POSITIVE INL = +0.17LSB. POSITIVE DNL = +0.22LSB
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Textversion des Dokuments
Data Sheet AD7693 TYPICAL PERFORMANCE CHARACTERISTICS
VDD = 4.5 V to 5.5 V, VIO = 2.3 V to VDD, VREF = VDD, TA = 25°C.
1.0 1.0 POSITIVE INL = +0.17LSB POSITIVE DNL = +0.22LSB NEGATIVE INL = –0.17LSB NEGATIVE DNL = –0.22LSB 0.8 0.8 0.6 0.6 0.4 0.4 ) 0.2 0.2 B B) S S L L 0 ( 0 L ( IN –0.2 DNL –0.2 –0.4 –0.4 –0.6 –0.6 –0.8 –0.8 –1.0 –1.0
7
0 16384 32768 49152 65536
10 00
0 16384 32768 49152 65536
0 4- 4-
CODE
39
CODE
39 06 06 Figure 7. Integral Nonlinearity vs. Code Figure 10. Differential Nonlinearity vs. Code
300000 160000 258774 135054 140000 250000 126066 120000 200000 100000 S S UNT 150000 UNT 80000 CO CO 60000 100000 40000 50000 20000 0 0 1905 441 0 0 0 0 0 0 0 0 0
8 1
6 7 8 9 A B C 7 8 9 A B C D
-00 -01 94 94
CODE IN HEX
63
CODE IN HEX
63 0 0 Figure 8. Histogram of a DC Input at the Code Center Figure 11. Histogram of a DC Input at the Code Transition
0 100 –80 fS = 500kSPS f –20 IN = 0.95kHz 99 –85 SNR = 96.4dB THD = –121dB 98 –90 le) –40 a SFDR = 124dB c SINAD = 96.4dB 97 –95 ll S –60 SNR u 96 –100 f F ) –80 B B) d d B o ( d 95 –105 ( R –100 HD ( SN T 94 –110 UDE IT –120 L 93 –115 P AM –140 92 –120 THD –160 91 –125 –180 90 –130 0 20 40 60 80 100 120 140 160 180 200
09 12 0
–10 –8 –6 –4 –2 0
-0 4- 94
FREQUENCY (kHz)
39
INPUT LEVEL (dB)
63 06 0 Figure 9. FFT Plot Figure 12. SNR, THD vs. Input Level Rev. B | Page 9 of 24 Document Outline Features Applications Application Diagram General Description Table of Contents Revision History Specification Timing Specifications Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Terminology Typical Performance Characteristics Theory of Operation Circuit Information Converter Operation Transfer Functions Typical Connection Diagram Analog Inputs Driver Amplifier Choice Single-Ended-to-Differential Driver Voltage Reference Input Power Supply Supplying the ADC from the Reference Digital Interface /CS Mode, 3-Wire Without Busy Indicator /CS Mode, 3-Wire with Busy Indicator /CS Mode, 4-Wire Without Busy Indicator /CS Mode, 4-Wire with Busy Indicator Chain Mode Without Busy Indicator Chain Mode with Busy Indicator Application Hints Layout Evaluating the AD7693 Performance Outline Dimensions Ordering Guide
VDD = 4.5 V to 5.5 V, VIO = 2.3 V to VDD, VREF = VDD, TA = 25°C.
1.0 1.0 POSITIVE INL = +0.17LSB POSITIVE DNL = +0.22LSB NEGATIVE INL = –0.17LSB NEGATIVE DNL = –0.22LSB 0.8 0.8 0.6 0.6 0.4 0.4 ) 0.2 0.2 B B) S S L L 0 ( 0 L ( IN –0.2 DNL –0.2 –0.4 –0.4 –0.6 –0.6 –0.8 –0.8 –1.0 –1.0
7
0 16384 32768 49152 65536
10 00
0 16384 32768 49152 65536
0 4- 4-
CODE
39
CODE
39 06 06 Figure 7. Integral Nonlinearity vs. Code Figure 10. Differential Nonlinearity vs. Code
300000 160000 258774 135054 140000 250000 126066 120000 200000 100000 S S UNT 150000 UNT 80000 CO CO 60000 100000 40000 50000 20000 0 0 1905 441 0 0 0 0 0 0 0 0 0
8 1
6 7 8 9 A B C 7 8 9 A B C D
-00 -01 94 94
CODE IN HEX
63
CODE IN HEX
63 0 0 Figure 8. Histogram of a DC Input at the Code Center Figure 11. Histogram of a DC Input at the Code Transition
0 100 –80 fS = 500kSPS f –20 IN = 0.95kHz 99 –85 SNR = 96.4dB THD = –121dB 98 –90 le) –40 a SFDR = 124dB c SINAD = 96.4dB 97 –95 ll S –60 SNR u 96 –100 f F ) –80 B B) d d B o ( d 95 –105 ( R –100 HD ( SN T 94 –110 UDE IT –120 L 93 –115 P AM –140 92 –120 THD –160 91 –125 –180 90 –130 0 20 40 60 80 100 120 140 160 180 200
09 12 0
–10 –8 –6 –4 –2 0
-0 4- 94
FREQUENCY (kHz)
39
INPUT LEVEL (dB)
63 06 0 Figure 9. FFT Plot Figure 12. SNR, THD vs. Input Level Rev. B | Page 9 of 24 Document Outline Features Applications Application Diagram General Description Table of Contents Revision History Specification Timing Specifications Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Terminology Typical Performance Characteristics Theory of Operation Circuit Information Converter Operation Transfer Functions Typical Connection Diagram Analog Inputs Driver Amplifier Choice Single-Ended-to-Differential Driver Voltage Reference Input Power Supply Supplying the ADC from the Reference Digital Interface /CS Mode, 3-Wire Without Busy Indicator /CS Mode, 3-Wire with Busy Indicator /CS Mode, 4-Wire Without Busy Indicator /CS Mode, 4-Wire with Busy Indicator Chain Mode Without Busy Indicator Chain Mode with Busy Indicator Application Hints Layout Evaluating the AD7693 Performance Outline Dimensions Ordering Guide