Datasheet AD7903 (Analog Devices) - 9

AD7903 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS
VDD = 2.5 V, VREF = 5.0 V, VIO = 3.3 V, TA = 25°C, fSAMPLE = 1 MSPS, unless otherwise noted.
1.0 1.0 POSITIVE INL: +0.35 LSB POSITIVE DNL: +0.31 LSB NEGATIVE INL: –0.39 LSB NEGATIVE DNL: –0.38 LSB 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 L IN –0.2 DN –0.2 –0.4 –0.4 –0.6 –0.6 –0.8 –0.8 –1.0
5
–1.0
8
0 16384 32768 49152 65536
40- 40
0 16384 32768 49152 65536
-
CODE
1755 1755 1
CODE
1 Figure 5. Integral Nonlinearity vs. Code, VREF = 5 V Figure 8. Differential Nonlinearity vs. Code, VREF = 5 V
1.0 1.0 POSITIVE INL: +0.39 LSB POSITIVE DNL: +0.39 LSB NEGATIVE INL: –0.44 LSB NEGATIVE DNL: –0.39 LSB 0.8 0.8 0.6 0.6 0.4 0.4 ) 0.2 ) 0.2 B B S S (L 0 (L 0 L L IN –0.2 DN –0.2 –0.4 –0.4 –0.6 –0.6 –0.8 –0.8 –1.0
6
–1.0
9
0 16384 32768 49152 65536
40-
0 16384 32768 49152 65536
-40
CODE
1755 1755 1
CODE
1 Figure 6. Integral Nonlinearity vs. Code, VREF = 2.5 V Figure 9. Differential Nonlinearity vs. Code, VREF = 2.5 V
0 0 fSAMPLE = 1MSPS fSAMPLE = 1MSPS f f –20 IN = 10kHz –20 IN = 10kHz SNR = 95.04dB SNR = 91.96dB THD = –117.3dB THD = –110.2dB –40 SFDR = 114.6dB –40 SFDR = 114.5dB SINAD = 95.02dB SINAD = 91.91dB –60 –60 B) –80 B) –80 d d NR ( –100 NR ( –100 S S –120 –120 –140 –140 –160 –160 –180 –180 0 100 200 300 400 500
407
0 100 200 300 400 500
410
FREQUENCY (kHz) FREQUENCY (kHz)
11755- 11755- Figure 7. FFT Plot, VREF = 5 V Figure 10. FFT Plot, VREF = 2.5 V Rev. B | Page 8 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