1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
500 1000 1500 2000 2500 3000 3500 4000
CODE
Figure 10. Typical INL, VDD = 2.7 V, Mode 1, 3.4 MHz fSCL, 121 kSPS
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
500 1000 1500 2000 2500 3000 3500 4000
CODE
Figure 11. AD7994 Typical DNL, VDD = 2.7 V, Mode 1, 3.4 MHz fSCL, 121 kSPS
1.0
0.8
0.6
0.4
POSITIVE INL
0.2
0
–0.2
NEGATIVE INL
–0.4
-0.6
–0.8
–1.0
1.2
1.7
2.2
2.7
3.2
3.7
4.2
4.7
REFERENCE VOLTAGE (V)
Figure 12. AD7994 Change in INL vs. Reference Voltage VDD = 5 V,
Mode 1, 121 kSPS
AD7993/AD7994
1.0
0.8
0.6
0.4
POSITIVE DNL
0.2
0
–0.2
NEGATIVE DNL
–0.4
-0.6
–0.8
–1.0
1.2
1.7
2.2
2.7
3.2
3.7
4.2
4.7
REFERENCE VOLTAGE (V)
Figure 13. AD7994 Change in DNL vs. Reference Voltage VDD = 5 V,
Mode 1, 121 kSPS
0.0007
0.0006
0.0005
0.0004
0.0003
0.0002
–40°C
+25°C
+85°C
0.0001
0
2.7
3.2
3.7
4.2
4.7
5.2
SUPPLY VOLTAGE (V)
Figure 14. AD7994 Shutdown Current vs. Supply Voltage,
–40°C, +25°C, and +85°C
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
100
MODE 2
VDD = 5V
MODE 2
VDD = 3V
MODE 1
VDD = 5V
MODE 1
VDD = 3V
600 1100 1600 2100 2600 3100
SCL FREQUENCY (kHz)
Figure 15. AD7994 Average Supply Current vs. I2C Bus Rate for
VDD = 3 V and 5 V
Rev. 0 | Page 13 of 32