AD7708 Analog Devices, AD7708 Datasheet - Page 24

• Manufacturer Part Number: AD7708
• Description: 16-Bit 8/10-Channel, Low Voltage, Low Power, Sigma Delta ADC
• Manufacturer: Analog Devices

Specifications of AD7708

• Resolution (bits): 16bit
• # Chan: 10
• Sample Rate: n/a
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni,SE-Uni
• Ain Range: (2Vref/PGA Gain) p-p
• Adc Architecture: Sigma-Delta
• Pkg Type: SOIC,SOP

AD7708/AD7718
Power-On/Reset
Register Name
AD7718
Offset Register
AD7718
Gain Register
AD7708
Offset Register
AD7708
Gain Register
AD7708
ID Register
AD7718
ID Register
Test Registers
Type
Read/Write
Read/Write
Read/Write
Read/Write
Read
Read
Read/Write
Size
24 Bits
24 Bits
16 Bits
16 Bits
8 Bits
8 Bits
16 Bits
Table XI. Registers—Quick Reference Guide (continued)
800 000 Hex
5XXXX5 Hex
8000 Hex
5XXX Hex
4X Hex
0000 Hex
Default Value
5X Hex
Function
Contains a 24-bit word which is the offset calibration
coefficient for the part. The contents of this register
are used to provide offset correction on the output
from the digital filter. There are five Offset Registers
on the part and these are associated with input chan-
nels as outlined in the ADCCON register.
Contains a 24-bit word which is the gain calibration
coefficient for the part. The contents of this register
are used to provide gain correction on the output
from the digital filter. There are five Gain Registers
on the part and these are associated with input chan-
nels as outlined in the ADCCON register.
Contains a 16-bit word which is the offset calibration
coefficient for the part. The contents of this register
are used to provide offset correction on the output
from the digital filter. There are five Offset Registers
on the part and these are associated with input chan-
nels as outlined in the ADCCON register.
Contains a 16-bit word which is the gain calibration
coefficient for the part. The contents of this register
are used to provide gain correction on the output
from the digital filter. There are five Gain Registers
on the part and these are associated with input chan-
nels as outlined in the ADCCON register.
Contains an 8-bit byte which is the identifier for
the part.
Contains an 8-bit byte which is the identifier for
the part.
Controls the test modes of the part that are used
when testing the part. The user is advised not to
change the contents of these registers.