AD7151BRMZ Analog Devices Inc, AD7151BRMZ Datasheet - Page 7

• Manufacturer Part Number: AD7151BRMZ
• Description: IC CAP CONV 1CH ULT LP 10MSOP
• Manufacturer: Analog Devices Inc
• Type: Capacitance-to-Digital Converterr

Specifications of AD7151BRMZ

• 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
• Sampling Rate: 100SPS
• Input Channel Type: Single Ended
• Data Interface: 2-Wire, I2C, Serial
• Supply Voltage Range - Analog: 2.7V To 3.6V
• Supply Current: 70µA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TYPICAL PERFORMANCE CHARACTERISTICS
Figure 4. Capacitance Input Offset Error vs. Capacitance CIN to GND,
Figure 6. Capacitance Input Offset Error vs. Capacitance EXC to GND,
Figure 5. Capacitance Input Gain Error vs. Capacitance CIN to GND,
–100
300
200
100
–2
–4
–6
–8
–1
–2
0
2
0
2
1
0
0
0
0
50
50
50
V
V
DD
DD
V
CAPACITANCE EXC TO GND (pF)
CAPACITANCE CIN TO GND (pF)
CAPACITANCE CIN TO GND (pF)
DD
= 3.3 V, EXC Pin Open Circuit
= 3.3 V, CIN Pin Open Circuit
= 3.3 V, CIN to EXC = 2 pF
100
100
100
150
150
150
200
200
200
250
250
250
300
300
300
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Figure 7. Capacitance Input Gain Error vs. Capacitance EXC to GND,
Figure 8. Capacitance Input Offset Error vs. Resistance CIN to GND,
–0.05
–0.10
Figure 9. Capacitance Input Gain Error vs. Resistance CIN to GND,
–100
–200
0.10
0.05
200
100
–10
10
–5
0
5
0
0
1
1
0
50
V
DD
V
V
CAPACITANCE EXC TO GND (pF)
DD
DD
RESISTANCE CIN TO GND (MΩ)
RESISTANCE CIN TO GND (MΩ)
= 3.3 V, EXC Pin Open Circuit
= 3.3 V, CIN to EXC = 2 pF
= 3.3 V, CIN to EXC = 2 pF
100
10
10
150
100
100
200
250
AD7151
1000
1000
300