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AD7621ACPZRL

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33
AD7621
Rev. 0 | Page 12 of 32
TYPICAL PERFORMANCE CHARACTERISTICS
04565-005
CODE
INL (LSB)
0 16384 32768 49152
–2.0
–1.5
–1.0
–0.5
0
0.5
1.0
1.5
2.0
65536
Figure 5. Integral Nonlinearity vs. Code
04565-006
CODE IN HEX
COUNTS
0
160000
140000
120000
100000
80000
60000
40000
20000
7FFC 7FFD 7FFE 7FFF 8000 8001 8002 8003 8004
σ
= 0.69
013
2080
2415
50
54791
51847
149969
Figure 6. Histogram of 261,120 Conversions of a DC Input
at the Code Center (External Reference)
04565-007
TEMPERATURE (°C)
V
REF
(V)
2.0480
2.0530
2.0525
2.0520
2.0515
2.0510
2.0505
2.0500
2.0495
2.0490
2.0485
–55 –35 –15 5 25 45 65 85 105 125
Figure 7. Typical Reference Voltage Output vs. Temperature (3 Units)
04565-008
CODE
DNL (LSB)
0 16384 32768 49152
–1.0
–0.5
0
0.5
1.5
1.0
65536
Figure 8. Differential Nonlinearity vs. Code
04565-009
CODE IN HEX
COUNTS
0
160000
140000
120000
100000
80000
60000
40000
20000
7FFC 7FFD 7FFE 7FFF 8000 8001 8002 8003 8004
σ
= 0.82
0
176
6644
60842
127317
59637
6376
128
0
Figure 9. Histogram of 261,120 Conversions of a DC Input
at the Code Center (Internal Reference)
04565-010
TEMPERATURE (°C)
ZERO SCALE, FULL-SCALE ERROR (LSB)
–10
–8
–6
–4
–2
0
2
4
6
8
10
–55 –35 –15 125105856545255
–FS
ZERO ERROR
+FS
Figure 10. Zero Error, Positive and Negative Full Scale vs. Temperature
AD7621
Rev. 0 | Page 13 of 32
04565-011
FREQUENCY (kHz)
AMPLITUDE (dB of Full-Scale)
–180
–160
–140
–120
–100
–80
–60
–40
–20
0
0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500
f
S
= 3MSPS
f
IN
= 20.1kHz
SNR = 90.1dB
THD = –103.2dB
SFDR = 103.8dB
SINAD = 89.9dB
Figure 11. FFT 20 kHz
04565-012
FREQUENCY (kHz)
SNR, SINAD (dB)
ENOB (Bits)
75
77
79
81
83
85
87
89
91
93
95
12.0
12.4
12.8
13.2
13.6
14.0
14.4
14.8
15.2
15.6
16.0
1 10 100 1000
SNR
ENOB
SINAD
Figure 12. SNR, SINAD and ENOB vs. Frequency
04565-013
FREQUENCY (kHz)
THD, HARMONICS (dB)
SFDR (dB)
–120
–115
–110
–105
–100
–95
–90
–85
–80
–75
–70
20
30
40
50
60
70
80
90
100
110
120
1 10 100 1000
THD
SFDR
THIRD
HARMONIC
SECOND
HARMONIC
Figure 13. THD, Harmonics, and SFDR vs. Frequency
04565-014
FREQUENCY (kHz)
AMPLITUDE (dB of Full-Scale)
–180
–160
–140
–120
–100
–80
–60
–40
–20
0
0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500
f
S
= 3MSPS
f
IN
= 98.79kHz
SNR = 89.9dB
THD = –104.9dB
SFDR = 106.6dB
SINAD = 89.8dB
Figure 14. FFT 100 kHz
04565-015
TEMPERATURE (
°
C)
SNR, SINAD (dB)
ENOB (Bits)
84
92
91
90
89
88
87
86
85
14.0
16.0
15.5
15.0
14.5
–55 –35 –15 125105856545255
SNR
SINAD
ENOB
Figure 15. SNR, SINAD, and ENOB vs. Temperature
04565-016
TEMPERATURE (
°
C)
THD, HARMONICS (dB)
SFDR (dB)
–130
–80
–85
–90
–95
–100
–105
–110
–115
–120
–125
60
110
105
100
95
90
85
80
75
70
65
–55 –35 –15 125105856545255
THIRD HARMONIC
SECOND HARMONIC
SFDR
THD
Figure 16. THD, Harmonics, and SFDR vs. Temperature
AD7621
Rev. 0 | Page 14 of 32
04565-017
INPUT LEVEL (dB)
SNR, SINAD REFERRED TO FULL-SCALE (dB)
89.5
91.0
90.5
90.0
–60 –50 –40 –30 –20 –10
SNR
SINAD
0
Figure 17. SNR and SINAD vs. Input Level (Referred to Full Scale)
04565-019
TEMPERATURE (
°
C)
DVDD, OVDD (
μ
A)
AVDD (
μ
A)
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
04565-020
SAMPLING RATE (SPS)
OPERATING CURRENTS (μA)
0.1
100k
10k
1k
100
10
1
10 100 1k 10k 100M 1M 10M
AVDD, WARP/NORMAL
AVDD, IMPULSE
DVDD, ALL MODES
OVDD, 2.5V, ALL MODES
PDREF = PDBUF = HIGH
OVDD = 3.3V, ALL MODES
Figure 19. Operating Current vs. Sample Rate
04565-022
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-P30P31-P33

AD7621ACPZRL

Mfr. #:
Buy AD7621ACPZRL
Manufacturer:
Analog Devices Inc.
Description:
Analog to Digital Converters - ADC 16B 2LSB INL 3 MSPS
Lifecycle:
New from this manufacturer.
Delivery:
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