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AD7623ASTZRL

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P29
AD7623
Rev. 0 | Page 12 of 28
TYPICAL PERFORMANCE CHARACTERISTICS
2.0
–2.0
0 65536
05574-005
CODE
INL (LSB)
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
16384 32768 49152
Figure 5. Integral Nonlinearity vs. Code
160k
0
7FFC 8004
05574-006
CODE IN HEX
COUNTS
011
2406
2258
20
50472
58814
140k
120k
100k
80k
60k
40k
20k
7FFD 7FFE 7FFF 8000 8001 8002 8003
σ
= 0.70
147157
Figure 6. Histogram of 261,120 Conversions of a DC Input
at the Code Center (External 2.5V Reference)
2.0530
2.0480
–55 125
05574-007
TEMPERATURE (°C)
VREF (V)
2.0525
2.0520
2.0515
2.0510
2.0505
2.0500
2.0495
2.0490
2.0485
–35 –15 5 25 45 65 85 105
Figure 7. Typical Reference Voltage Output vs. Temperature (3 Units)
1.5
–1.0
0 65536
05574-008
CODE
DNL (LSB)
1.0
0.5
0
–0.5
16384 32768 49152
Figure 8. Differential Nonlinearity vs. Code
160k
0
7FFC 8004
05574-009
CODE IN HEX
COUNTS
140k
120k
100k
80k
60k
40k
20k
7FFD 7FFE 7FFF 8000 8001 8002 8003
σ
= 0.82
0
119
5928
59008
62565
7217
168
1
126114
Figure 9. Histogram of 261,120 Conversions of a DC Input
at the Code Center (Internal Reference)
10
–10
–55 125
05574-010
TEMPERATURE (°C)
ZERO ERROR, FULL-SCALE ERROR (LSB)
8
6
4
2
0
–2
–4
–6
–8
–35 –15 5 25 45 65 85 105
+FS
–FS
ZERO
ERROR
Figure 10. Zero Error, Positive and Negative Full Scale vs. Temperature
AD7623
Rev. 0 | Page 13 of 28
0
–180
0 600
05574-011
FREQUENCY (kHz)
AMPLITUDE (dB of Full Scale)
–20
–40
–60
–80
–100
–120
–140
–160
f
S
= 1.33MSPS
f
IN
= 20.03kHz
SNR = 89.4dB
THD = –104.1dB
SFDR = 107.2dB
SINAD = 89.3dB
500100 200 300 400
Figure 11. FFT 20 kHz
92
82
1 1000
05574-012
FREQUENCY (kHz)
SNR, SINAD (dB)
13.4
13.8
14.2
14.6
15.0
15.4
ENOB (Bits)
SNR
SINAD
ENOB
90
88
86
84
10 100
Figure 12. SNR, SINAD and ENOB vs. Frequency
–70
–120
1 1000
05574-013
FREQUENCY (kHz)
THD, HARMONICS (dB)
20
30
40
50
60
70
80
90
100
110
120
SFDR (dB)
–75
–80
–85
–90
–95
–100
–105
–110
–115
10 100
SECOND
HARMONIC
THIRD
HARMONIC
THD
SFDR
Figure 13. THD, Harmonics, and SFDR vs. Frequency
0
–180
0 600
05574-014
FREQUENCY (kHz)
AMPLITUDE (dB of Full Scale)
–20
–40
–60
–80
–100
–120
–140
–160
f
S
= 1.33MSPS
f
IN
= 100.13kHz
SNR = 89.2dB
THD = –95.6dB
SFDR = 96dB
SINAD = 88.4dB
500100 200 300 400
Figure 14. FFT 100 kHz
90
82
–55 125
05574-015
TEMPERATURE (°C)
SNR, SINAD (dB)
13.5
14.0
14.5
15.0
15.5
ENOB (Bits)
89
88
87
86
85
84
83
–35 –15 5 25 45 65 85 105
ENOB
SINAD
SNR
Figure 15. SNR, SINAD, and ENOB vs. Temperature
–80
–130
–55 125
05574-016
TEMPERATURE (°C)
THD, HARMONICS (dB)
–85
–90
–95
–100
–105
–110
–115
–120
–125
–35–155 25456585105
50
55
60
65
70
75
80
85
90
95
100
SFDR (dB)
SECOND
HARMONIC
THIRD
HARMONIC
THD
SFDR
Figure 16. THD, Harmonics, and SFDR vs. Temperature
AD7623
Rev. 0 | Page 14 of 28
91.0
89.0
–60 0
05574-017
INPUT LEVEL (dB)
SNR, SINAD REFERRED TO FULL-SCALE (dB)
90.5
90.0
89.5
–50 –40 –30 –20 –10
SNR
SINAD
Figure 17. SNR and SINAD vs. Input Level (Referred to Full Scale)
05574-018
TEMPERATURE (°C)
DVDD, OVDD (μA)
AVDD (μA)
0
16
14
12
10
8
6
4
2
200
280
270
260
250
240
230
220
210
–55 –35 –15 5 25 45 65 85 105 125
AVDD
DVDD
OVDD, 3.3V
OVDD, 2.5V
Figure 18. Power-Down Operating Currents vs. Temperature
00574-019
SAMPLING RATE (SPS)
OPERATING CURRENTS (
μ
A)
0.1
100k
10k
1k
100
10
1
10 100 1k 10k 100M 1M 10M
AVDD
DVDD
OVDD, 2.5V
PDREF = PDBUF = HIGH
OVDD = 3.3V
Figure 19. Operating Currents vs. Sample Rate
05574-020
C
L
(pF)
t
12
DELAY (ns)
4
6
8
10
12
14
16
18
20
0 50 100 150 200
OVDD = 2.5V @ 85°C
OVDD = 2.5V @ 25°C
OVDD = 3.3V @ 85°C
OVDD = 3.3V @ 25°C
Figure 20. Typical Delay vs. Load Capacitance C
L
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P29

AD7623ASTZRL

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Buy AD7623ASTZRL
Manufacturer:
Analog Devices Inc.
Description:
IC ADC 16BIT 1.33MSPS DFF 48LQFP
Lifecycle:
New from this manufacturer.
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