AD7153 Analog Devices, AD7153 Datasheet - Page 14

• Manufacturer Part Number: AD7153
• Description: 12-Bit Capacitance-to-Digital Converter (1 Capacitance Input Channel)
• Manufacturer: Analog Devices

Specifications of AD7153

• Resolution (bits): 12bit
• # Chan: 1
• Sample Rate: 200SPS
• Interface: I²C/Ser 2-Wire,Ser
• Analog Input Type: Capacitive
• Ain Range: ±0.25 pF to ±2 pF Diff,0.5 pF to 4 pF SE
• Adc Architecture: Sigma-Delta
• Pkg Type: SOP

AD7152/AD7153
STATUS REGISTER
Address 0x00
Read Only
Default Value 0x03
This register indicates the status of the converter. The status register can be read via the 2-wire serial interface to query a finished
conversion.
Table 7. Status Register Bit Map
Bit
Mnemonic
Default
Table 8. Status Register Bit Descriptions
Bit
7
6 to 3
2
1
0
Mnemonic
PWDN
N/A
C1C2
RDY2
RDY1
Description
PWDN = 1 indicates that the V
Not used, always read 0
C1C2 = 0 indicates that the last conversion performed was from Channel 1, C1C2 = 1 indicates that the last
conversion performed was from Channel 2
RDY2 = 0 indicates that a conversion on the Channel 2 has been finished and new unread data is available (AD7152 only)
RDY1 = 0 indicates that a conversion on the Channel 1 has been finished and new unread data is available
Bit 7
PWDN
0
Bit 6
Unused
0
DD
voltage level is below 2.45 V typically or part is in power-down mode
Bit 5
Unused
0
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Bit 4
Unused
0
Bit 3
Unused
0
Bit 2
C1C2
0
Bit 1
RDY2
1
Bit 0
RDY1
1