AD7988-1 Analog Devices, AD7988-1 Datasheet - Page 12

• Manufacturer Part Number: AD7988-1
• Description: 16-Bit, 100ksps, Ultra Low Power 16-Bit SAR ADC
• Manufacturer: Analog Devices

Specifications of AD7988-1

• Resolution (bits): 16bit
• # Chan: 1
• Sample Rate: 100kSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (Vref) p-p,5V p-p,Uni (Vref),Uni 5.0V
• Pkg Type: SOP

AD7988-1/AD7988-5
–100
–105
–110
–115
–120
–125
–95
2.25
100
95
94
93
92
91
90
89
88
87
86
85
95
90
85
80
–10
10
–9
2.75
Figure 19. THD, SFDR vs. Reference Voltage
–8
Figure 20. SINAD vs. Frequency
INPUT LEVEL (dB OF FULL SCALE)
Figure 18. SNR vs. Input Level
REFERENCE VOLTAGE (V)
3.25
THD
–7
SFDR
FREQUENCY (kHz)
–6
3.75
–5
100
–4
4.25
–3
4.75
–2
–1
5.25
115
110
105
100
95
90
85
0
1k
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0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.7
0.6
0.5
0.4
0.3
0.2
0.1
95
93
91
89
87
85
2.375
0
2.375
–55
0
Figure 22. Operating Currents vs. Supply (AD7988-5)
Figure 23. Operating Currents vs. Supply (AD7988-1)
–35
2.425
2.425
–15
Figure 21. SNR vs. Temperature
5
TEMPERATURE (°C)
VDD VOLTAGE (V)
2.475
VDD VOLTAGE (V)
2.475
25
I
I
I
VDD
REF
I
I
VIO
I
VDD
REF
VIO
45
2.525
2.525
65
2.575
85
2.575
Data Sheet
105
2.625
2.625
125