AD7150BRMZ Analog Devices Inc, AD7150BRMZ Datasheet - Page 8

• Manufacturer Part Number: AD7150BRMZ
• Description: IC CAP CONV 2CH ULT LP 10MSOP
• Manufacturer: Analog Devices Inc
• Type: Capacitance-to-Digital Converterr

Specifications of AD7150BRMZ

• Design Resources: Using AD7150 for Proximity Sensing Appls (CN0095)
• Input Type: Voltage
• Output Type: Digital
• Interface: 2-Wire Serial
• Current - Supply: 120µA
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Resolution (bits): 12bit
• Data Interface: 2-Wire, I2C, Serial
• Supply Voltage Range - Analog: 2.7V To 3.6V
• Supply Current: 100µA
• Digital Ic Case Style: SOP
• No. Of Pins: 10
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: EVAL-AD7150EBZ - BOARD EVAL FOR AD7150
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

AD7150
Figure 10. Capacitance Input Offset Error vs. Resistance CIN to GND,
Figure 12. Capacitance Input Offset Error vs. Resistance EXC to GND,
Figure 11. Capacitance Input Gain Error vs. Resistance CIN to GND,
–250
–500
500
250
–10
–10
10
–5
10
–5
0
5
0
5
0
1
1
0
V
V
2
DD
DD
V
DD
RESISTANCE CIN TO GND (MΩ)
RESISTANCE CIN TO GND (MΩ)
RESISTANCE EXC TO GND (MΩ)
= 3.3 V, EXC Pin Open Circuit
= 3.3 V, CIN Pin Open Circuit
= 3.3 V, CIN to EXC = 2 pF
10
10
4
6
100
100
8
1000
1000
10
Rev. 0 | Page 8 of 28
Figure 13. Capacitance Input Gain Error vs. Resistance EXC to GND,
–0.25
–0.50
0.50
0.25
–10
Figure 15. Capacitance Input Gain Error vs. Parallel Resistance,
Figure 14. Capacitance Input Gain Error vs. Serial Resistance,
10
–5
–2
–4
–6
–8
5
0
2
0
0
1
0
0
50
2
V
V
V
DD
DD
DD
RESISTANCE EXC TO GND (MΩ)
PARALLEL RESISTANCE (MΩ)
= 3.3 V, CIN to EXC = 2 pF
= 3.3 V, CIN to EXC = 2 pF
= 3.3 V, CIN to EXC = 2 pF
SERIAL RESISTANCE (kΩ)
10
100
4
150
6
100
200
8
1000
250
10