AD7621AST Analog Devices Inc, AD7621AST Datasheet - Page 14

• Manufacturer Part Number: AD7621AST
• Description: IC ADC 16BIT 2MSPS DIFF 48LQFP
• Manufacturer: Analog Devices Inc
• Series: PulSAR®r

Specifications of AD7621AST

• Number Of Bits: 16
• Sampling Rate (per Second): 2M
• Data Interface: Serial, Parallel
• Number Of Converters: 1
• Power Dissipation (max): 86mW
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• For Use With: EVAL-AD7621CBZ - BOARD EVALUATION FOR AD7621
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

AD7621
16
14
12
10
Figure 17. SNR and SINAD vs. Input Level (Referred to Full Scale)
91.0
90.5
90.0
89.5
8
6
4
2
0
–55
Figure 18. Power-Down Operating Currents vs. Temperature
–60
–35
AVDD
–50
–15
SNR
SINAD
5
TEMPERATURE ( ° C)
–40
INPUT LEVEL (dB)
25
–30
45
65
–20
OVDD, 2.5V
OVDD, 3.3V
85
DVDD
–10
105
125
280
270
260
250
240
230
220
210
200
0
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100k
10k
100
0.1
20
18
16
14
12
10
1k
10
1
8
6
4
10
0
Figure 20. Typical Delay vs. Load Capacitance C
AVDD, WARP/NORMAL
AVDD, IMPULSE
DVDD, ALL MODES
Figure 19. Operating Current vs. Sample Rate
OVDD = 3.3V, ALL MODES
100
50
SAMPLING RATE (SPS)
1k
100
C
L
10k
(pF)
OVDD, 2.5V, ALL MODES
PDREF = PDBUF = HIGH
150
100M
OVDD = 2.5V @ 85°C
OVDD = 2.5V @ 25°C
OVDD = 3.3V @ 85°C
OVDD = 3.3V @ 25°C
1M
200
L
10M