AD7998 Analog Devices, AD7998 Datasheet - Page 14

• Manufacturer Part Number: AD7998
• Description: 8-Channel, 12-Bit ADC with I2C Compatible Interface in 20-Lead TSSOP
• Manufacturer: Analog Devices

Specifications of AD7998

• Resolution (bits): 12bit
• # Chan: 8
• Sample Rate: 79kSPS
• Interface: I²C/Ser 2-Wire,Ser
• Analog Input Type: SE-Uni
• Ain Range: Uni (Vref)
• Adc Architecture: SAR
• Pkg Type: SOP

AD7997/AD7998
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
Figure 16. AD7998 Average Supply Current vs. Supply Voltage
2.7
TEMPERATURE = +85°C
TEMPERATURE = +25°C
TEMPERATURE = –40°C
TEMPERATURE = +85°C
TEMPERATURE = +25°C
TEMPERATURE = –40°C
3.2
for Various Temperatures
SUPPLY VOLTAGE (V)
3.7
4.2
MODE 1 - 121kSPS
MODE 2 - 147kSPS
4.7
5.2
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12.0
11.8
11.6
11.4
11.2
11.0
10.8
10.6
10.4
Figure 17. SINAD/ENOB vs. Reference Voltage, Mode 1, 121 kSPS
1.200 2.048 2.500 2.700 3.000 3.300 4.096 4.500 5.000
SINAD V
ENOB V
REFERENCE VOLTAGE (V)
DD
= 3V
DD
= 3V
ENOB V
SINAD V
DD
DD
= 5V
= 5V
74
73
72
71
70
69
68