AD7667AST Analog Devices Inc, AD7667AST Datasheet - Page 14

• Manufacturer Part Number: AD7667AST
• Description: IC ADC 16BIT UNIPOLAR 48-LQFP
• Manufacturer: Analog Devices Inc
• Series: PulSAR®r

Specifications of AD7667AST

• Rohs Status: RoHS non-compliant
• Number Of Bits: 16
• Sampling Rate (per Second): 1M
• Data Interface: Serial, Parallel
• Number Of Converters: 1
• Power Dissipation (max): 145mW
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• For Use With: EVAL-AD7667CBZ - BOARD EVALUATION FOR AD7667

AD7667
100000
10000
0.001
–100
–105
–110
–115
1000
0.01
100
0.1
10
92
91
90
89
88
87
1
–55
–55
10
DVDD, IMPULSE
SECOND
HARMONIC
AVDD, IMPULSE
SNR
THD
Figure 17. SNR, S/[N+D], and ENOB vs. Temperature
S/[N+D]
–35
–35
Figure 18. THD and Harmonics vs. Temperature
Figure 19. Operating Current vs. Sample Rate
ENOB
THIRD
HARMONIC
100
–15
–15
AVDD, WARP/NORMAL
DVDD, WARP/NORMAL
SAMPLING RATE (SPS)
5
5
TEMPERATURE (°C)
TEMPERATURE (°C)
1k
25
25
45
45
OVDD, ALL MODES
10k
PDREF = PDBUF = HIGH
65
65
85
85
100k
105
105
125
125
1M
15.0
14.5
14.0
13.5
13.0
12.5
Rev. 0 | Page 14 of 28
Figure 22. Reference Voltage Temperature Coefficient Distribution (102 Units)
2.4988
2.4986
2.4984
2.4982
2.4980
2.4978
2.4976
2.4974
2.4972
2.4970
2.4968
2.4966
Figure 21. Typical Reference Voltage Output vs. Temperature (3 Units)
Figure 20. Zero Error, Full-Scale Error with Reference vs. Temperature
25
20
15
10
5
0
–1
–2
–3
–4
–5
–6
6
5
4
3
2
1
0
0
–55
–40
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0
–35
–20
–15
REFERENCE DRIFT (ppm/°C)
0
TEMPERATURE (°C)
5
20
25
40
45
60
ZERO ERROR
65
FULL-SCALE
ERROR
80
85
100
105
120
125