EVAL-AD7747EBZ Analog Devices Inc, EVAL-AD7747EBZ Datasheet - Page 19

• Manufacturer Part Number: EVAL-AD7747EBZ
• Description: 24-Bit Capacitance-to-Digital Converter Eval. Board
• Manufacturer: Analog Devices Inc

Specifications of EVAL-AD7747EBZ

• Silicon Manufacturer: Analog Devices
• Application Sub Type: Capacitance-to-Digital Converter
• Kit Application Type: Data Converter
• Silicon Core Number: AD7747
• Sensor Type: Touch, Capacitive
• Interface: I²C
• Voltage - Supply: 2.7 V ~ 5.25 V
• Embedded: No
• Utilized Ic / Part: AD7747
• Kit Contents: Board
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sensitivity: -
• Sensing Range: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

CAP DAC A REGISTER
Address Pointer 0x0B, Default Value 0x00
Capacitive DAC setup.
Table 19. Cap DAC A Register Bit Map
Bit
Mnemonic
Default
Table 20.
Bit
7
6
5 to 1
CAP DAC B REGISTER
Address Pointer 0x0C, Default Value 0x00
Capacitive DAC setup.
Table 21. Cap DAC B Register Bit Map
Bit
Mnemonic
Default
Table 22.
Bit
7
6
5 to 1
Mnemonic
DACAENA
–
DACA
Mnemonic
DACBENB
–
DACB
Bit 7
DACAENA
0
Description
DACAENA = 1 connects capacitive DACA to the positive capacitance input.
This bit must be 0 for proper operation.
DACA value, Code 0x00 ≈ 0 pF, Code 0x3F ≈ full range.
Bit 7
DACBENB
0
Description
DACBENB = 1 connects capacitive DACB to the negative capacitance input.
This bit must be 0 for proper operation.
DACB value, Code 0x00 ≈ 0 pF, Code 0x3F ≈ full range.
Bit 6
–
0
Bit 6
–
0
Bit 5
Bit 5
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Bit 4
Bit 4
Bit 3
Bit 3
DACA—6-Bit Value
DACB—6-Bit Value
0x00
0x00
Bit 2
Bit 2
Bit 1
Bit 1
AD7747
Bit 0
Bit 0