AD7993 Analog Devices, AD7993 Datasheet - Page 13

• Manufacturer Part Number: AD7993
• Description: 4-Channel, 10-Bit ADC with I2C Compatible Interface in 16-Lead TSSOP
• Manufacturer: Analog Devices

Specifications of AD7993

• Resolution (bits): 10bit
• # Chan: 4
• Sample Rate: 188kSPS
• Interface: I²C/Ser 2-Wire,Ser
• Analog Input Type: SE-Uni
• Ain Range: Uni (Vref)
• Adc Architecture: SAR
• Pkg Type: SOP

Figure 11. AD7994 Typical DNL, V
–0.2
–0.4
–0.6
–0.8
–1.0
–0.2
–0.4
–0.6
–0.8
–1.0
–0.2
–0.4
–0.8
–1.0
-0.6
1.0
0.8
0.6
0.4
0.2
1.0
0.8
0.6
0.4
0.2
1.0
0.8
0.6
0.4
0.2
0
0
0
Figure 12. AD7994 Change in INL vs. Reference Voltage V
Figure 10. Typical INL, V
1.2
0
0
500
500
1.7
1000
1000
2.2
REFERENCE VOLTAGE (V)
1500
1500
Mode 1, 121 kSPS
DD
2.7
= 2.7 V, Mode 1, 3.4 MHz f
CODE
2000
CODE
DD
2000
= 2.7 V, Mode 1, 3.4 MHz f
3.2
2500
2500
NEGATIVE INL
POSITIVE INL
3.7
3000
3000
4.2
3500
3500
SCL
, 121 kSPS
4.7
DD
SCL
4000
4000
, 121 kSPS
= 5 V,
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0.0007
0.0006
0.0005
0.0004
0.0003
0.0002
0.0001
–0.2
–0.4
–0.8
–1.0
-0.6
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
1.0
0.8
0.6
0.4
0.2
0
0
Figure 13. AD7994 Change in DNL vs. Reference Voltage V
100
0
1.2
2.7
Figure 15. AD7994 Average Supply Current vs. I
Figure 14. AD7994 Shutdown Current vs. Supply Voltage,
1.7
600
3.2
2.2
1100
REFERENCE VOLTAGE (V)
–40°C, +25°C, and +85°C
SCL FREQUENCY (kHz)
SUPPLY VOLTAGE (V)
3.7
Mode 1, 121 kSPS
V
2.7
DD
1600
= 3 V and 5 V
3.2
4.2
2100
NEGATIVE DNL
POSITIVE DNL
3.7
AD7993/AD7994
4.7
MODE 2
V
2600
MODE 2
V
DD
–40°C
+25°C
+85°C
DD
4.2
2
C Bus Rate for
= 5V
= 3V
MODE 1
V
MODE 1
V
DD
DD
3100
5.2
= 5V
4.7
= 3V
DD
= 5 V,