Datasheet AD7989-1, AD7989-5 (Analog Devices) - 9
| Manufacturer | Analog Devices |
| Description | 18-Bit, 500 kSPS PulSAR ADCs in MSOP/LFCSP |
| Pages / Page | 24 / 9 — Data Sheet. AD7989-1/AD7989-5. TYPICAL PERFORMANCE CHARACTERISTICS. 2.0. … |
| Revision | B |
| File Format / Size | PDF / 603 Kb |
| Document Language | English |
Data Sheet. AD7989-1/AD7989-5. TYPICAL PERFORMANCE CHARACTERISTICS. 2.0. POSITIVE INL: +0.79 LSB NEGATIVE INL: –0.68 LSB. 1.5. 1.0
Model Line for this Datasheet
Text Version of Document
Data Sheet AD7989-1/AD7989-5 TYPICAL PERFORMANCE CHARACTERISTICS
VDD = 2.5 V, VREF = 5.0 V, VIO = 3.3 V.
2.0 2.0 POSITIVE INL: +0.79 LSB NEGATIVE INL: –0.68 LSB 1.5 1.5 1.0 1.0 0.5 0.5 ) ) B B S S L 0 (L 0 ( L L IN DN –0.5 –0.5 –1.0 –1.0 –1.5 –1.5 –2.0 –2.0 0 65536 131072 196608 262144
06 0
0 65536 131072 196608 262144
009 32- 32-
CODE CODE
102 102 Figure 6. INL vs. Code Figure 9. DNL vs. Code
60k 50k 44806 50975 45k 43239 50k 40k 35k 40k S 32476 30k S 30k 29064 UNT 25k UNT CO CO 20013 20k 16682 20k 15k 10k 10k 9064 7795 5k 2793 3158 222 0 0 0 29 745 881 43 0 0 0 0 7 145 7 0 0
7
0
0
3FFF0 3FFF2 3FFF4 3FFF6 3FFF8 3FFFA 3FFFC
-00 -01 2
0 1 2 3 4 5 6 7 8 9 A B C D
2
CODE IN HEX
23
CODE IN HEX
23 10 10 Figure 7. Histogram of a DC Input at the Code Center Figure 10. Histogram of a DC Input at the Code Transition
0 0 fS = 500kSPS f f S = 100kSPS –20 IN = 1kHz f –20 IN = 1kHz ) SNR = 97.4361dB ) SNR = 97.2634dB E SINAD = 97.3577dB E L SINAD = 97.145dB –40 THD = –114.42dB THD = –112.7dB CA –40 CAL S S L L –60 UL –60 UL F F F F –80 –80 B O B O (d (d E –100 E –100 UD UD IT IT L –120 L P –120 P M AM A –140 –140 –160
08
–160 0 50 100 150 200 250
0
0 10 20 30 40 50
111 2-
FREQUENCY (kHz)
0232-
FREQUENCY (kHz)
1 1023 Figure 8. AD7989-5 Fast Fourier Transform (FFT) Plot Figure 11. AD7989-1 FFT Plot Rev. B | Page 9 of 24 Document Outline Features Applications General Description Typical Applications Circuit Revision History Specifications Timing Specifications Absolute Maximum Ratings ESD Caution Pin Configurations 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-Ended to Differential Driver Voltage Reference Input Power Supply Digital Interface CSB Mode, 3-Wire CSB Mode, 4-Wire Chain Mode Applications Information Interfacing to Blackfin® DSP Layout Evaluating AD7989-1/AD7989-5 Performance Outline Dimensions Ordering Guide
VDD = 2.5 V, VREF = 5.0 V, VIO = 3.3 V.
2.0 2.0 POSITIVE INL: +0.79 LSB NEGATIVE INL: –0.68 LSB 1.5 1.5 1.0 1.0 0.5 0.5 ) ) B B S S L 0 (L 0 ( L L IN DN –0.5 –0.5 –1.0 –1.0 –1.5 –1.5 –2.0 –2.0 0 65536 131072 196608 262144
06 0
0 65536 131072 196608 262144
009 32- 32-
CODE CODE
102 102 Figure 6. INL vs. Code Figure 9. DNL vs. Code
60k 50k 44806 50975 45k 43239 50k 40k 35k 40k S 32476 30k S 30k 29064 UNT 25k UNT CO CO 20013 20k 16682 20k 15k 10k 10k 9064 7795 5k 2793 3158 222 0 0 0 29 745 881 43 0 0 0 0 7 145 7 0 0
7
0
0
3FFF0 3FFF2 3FFF4 3FFF6 3FFF8 3FFFA 3FFFC
-00 -01 2
0 1 2 3 4 5 6 7 8 9 A B C D
2
CODE IN HEX
23
CODE IN HEX
23 10 10 Figure 7. Histogram of a DC Input at the Code Center Figure 10. Histogram of a DC Input at the Code Transition
0 0 fS = 500kSPS f f S = 100kSPS –20 IN = 1kHz f –20 IN = 1kHz ) SNR = 97.4361dB ) SNR = 97.2634dB E SINAD = 97.3577dB E L SINAD = 97.145dB –40 THD = –114.42dB THD = –112.7dB CA –40 CAL S S L L –60 UL –60 UL F F F F –80 –80 B O B O (d (d E –100 E –100 UD UD IT IT L –120 L P –120 P M AM A –140 –140 –160
08
–160 0 50 100 150 200 250
0
0 10 20 30 40 50
111 2-
FREQUENCY (kHz)
0232-
FREQUENCY (kHz)
1 1023 Figure 8. AD7989-5 Fast Fourier Transform (FFT) Plot Figure 11. AD7989-1 FFT Plot Rev. B | Page 9 of 24 Document Outline Features Applications General Description Typical Applications Circuit Revision History Specifications Timing Specifications Absolute Maximum Ratings ESD Caution Pin Configurations 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-Ended to Differential Driver Voltage Reference Input Power Supply Digital Interface CSB Mode, 3-Wire CSB Mode, 4-Wire Chain Mode Applications Information Interfacing to Blackfin® DSP Layout Evaluating AD7989-1/AD7989-5 Performance Outline Dimensions Ordering Guide
