Datasheet AD7903 (Analog Devices) - 10
| Manufacturer | Analog Devices |
| Description | Dual Differential 16-Bit, 1 MSPS PulSAR 12.0 mW in QSOP |
| Pages / Page | 29 / 10 — Data Sheet. AD7903. 45000. 40000. S 35000. NCE. 30000. 25000. CCURRE. F … |
| Revision | B |
| File Format / Size | PDF / 1.1 Mb |
| Document Language | English |
Data Sheet. AD7903. 45000. 40000. S 35000. NCE. 30000. 25000. CCURRE. F 20000. R O. 15000. NUM 10000. 5000
Model Line for this Datasheet
Text Version of Document
Data Sheet AD7903 45000 45000 40000 40000 S 35000 S 35000 NCE NCE 30000 30000 25000 25000 CCURRE CCURRE O O F 20000 F 20000 R O R O 15000 15000 BE BE NUM 10000 NUM 10000 5000 5000 0
1
0
1
FFE1 FFE2 FFE3 FFE4 FFE5 FFE6 FFE7 FFE8 FFE9 FFEA
4
FFF1 FFF2 FFF3 FFF4 FFF5 FFF6 FFF7 FFF8 FFF9 FFFA FFFB
414
CODES IN HEX
1755- 1755- 1
CODES IN HEX
1 Figure 11. Histogram of a DC Input at the Code Center, VREF = 5 V Figure 14. Histogram of a DC Input at the Code Center, VREF = 2.5 V
40000 98 35000 97 S 30000 NCE 96 25000 B) CCURRE d 20000 95 O F NR ( S R O 15000 BE 94 10000 NUM 93 5000 0 92 FFD2 FFD3 FFD4 FFD5 FFD6 FFD7 FFD8 FFD9 FFDA FFDB
412
–10 –9 –8 –7 –6 –5 –4 –3 –2 –1 0
415
CODES IN HEX
1755- 1
INPUT LEVEL (dB)
1755- 1 Figure 12. Histogram of a DC Input at the Code Transition, VREF = 5 V Figure 15. SNR vs. Input Level
100 16.0 –95 115 SNR 98 SINAD 15.5 ENOB –100 110 96 15.0 SFDR 94 –105 105 B) 14.5 d 92 ts) B) B) Bi d d 90 14.0 INAD ( B ( –110 100 S HD ( DR ( NO T F 88 E S NR, 13.5 S –115 95 86 THD 13.0 84 –120 90 12.5 82 80 12.0 –125 85 2.25 2.50 2.75 3.00 3.25 3.50 3.75 4.00 4.25 4.50 4.75 5.00 5.25
413
2.25 2.75 3.25 3.75 4.25 4.75 5.25
416
REFERENCE VOLTAGE (V)
1755- 1755- 1
REFERENCE VOLTAGE (V)
1 Figure 13. SNR, SINAD, and ENOB vs. Reference Voltage Figure 16. THD, SFDR vs. Reference Voltage Rev. B | Page 9 of 28 Document Outline Features Applications General Description Functional Block Diagram Table of Contents Revision History Specifications Timing Specifications Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Terminology Theory of Operation Circuit Information Converter Operation Transfer Functions Typical Connection Diagram Analog Inputs Driver Amplifier Choice Single-to-Differential Driver Voltage Reference Input Power Supply Digital Interface CS Mode CS Mode, 3-Wire Interface Without Busy Indicator CS Mode, 3-Wire Interface with Busy Indicator CS Mode, 4-Wire Interface Without Busy Indicator CS Mode, 4-Wire Interface with Busy Indicator Chain Mode Chain Mode Without Busy Indicator Chain Mode with Busy Indicator Applications Information Simultaneous Sampling Functional Safety Considerations Layout Evaluating Performance of the AD7903 Outline Dimensions Ordering Guide
1
0
1
FFE1 FFE2 FFE3 FFE4 FFE5 FFE6 FFE7 FFE8 FFE9 FFEA
4
FFF1 FFF2 FFF3 FFF4 FFF5 FFF6 FFF7 FFF8 FFF9 FFFA FFFB
414
CODES IN HEX
1755- 1755- 1
CODES IN HEX
1 Figure 11. Histogram of a DC Input at the Code Center, VREF = 5 V Figure 14. Histogram of a DC Input at the Code Center, VREF = 2.5 V
40000 98 35000 97 S 30000 NCE 96 25000 B) CCURRE d 20000 95 O F NR ( S R O 15000 BE 94 10000 NUM 93 5000 0 92 FFD2 FFD3 FFD4 FFD5 FFD6 FFD7 FFD8 FFD9 FFDA FFDB
412
–10 –9 –8 –7 –6 –5 –4 –3 –2 –1 0
415
CODES IN HEX
1755- 1
INPUT LEVEL (dB)
1755- 1 Figure 12. Histogram of a DC Input at the Code Transition, VREF = 5 V Figure 15. SNR vs. Input Level
100 16.0 –95 115 SNR 98 SINAD 15.5 ENOB –100 110 96 15.0 SFDR 94 –105 105 B) 14.5 d 92 ts) B) B) Bi d d 90 14.0 INAD ( B ( –110 100 S HD ( DR ( NO T F 88 E S NR, 13.5 S –115 95 86 THD 13.0 84 –120 90 12.5 82 80 12.0 –125 85 2.25 2.50 2.75 3.00 3.25 3.50 3.75 4.00 4.25 4.50 4.75 5.00 5.25
413
2.25 2.75 3.25 3.75 4.25 4.75 5.25
416
REFERENCE VOLTAGE (V)
1755- 1755- 1
REFERENCE VOLTAGE (V)
1 Figure 13. SNR, SINAD, and ENOB vs. Reference Voltage Figure 16. THD, SFDR vs. Reference Voltage Rev. B | Page 9 of 28 Document Outline Features Applications General Description Functional Block Diagram Table of Contents Revision History Specifications Timing Specifications Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Terminology Theory of Operation Circuit Information Converter Operation Transfer Functions Typical Connection Diagram Analog Inputs Driver Amplifier Choice Single-to-Differential Driver Voltage Reference Input Power Supply Digital Interface CS Mode CS Mode, 3-Wire Interface Without Busy Indicator CS Mode, 3-Wire Interface with Busy Indicator CS Mode, 4-Wire Interface Without Busy Indicator CS Mode, 4-Wire Interface with Busy Indicator Chain Mode Chain Mode Without Busy Indicator Chain Mode with Busy Indicator Applications Information Simultaneous Sampling Functional Safety Considerations Layout Evaluating Performance of the AD7903 Outline Dimensions Ordering Guide
