AD7190BRUZ Analog Devices Inc, AD7190BRUZ Datasheet - Page 31

• Manufacturer Part Number: AD7190BRUZ
• Description: IC ADC 2CH 24BIT W/PGA 24TSSOP
• Manufacturer: Analog Devices Inc

Specifications of AD7190BRUZ

• Data Interface: DSP, MICROWIRE™, QSPI™, Serial, SPI™
• Design Resources: Precision Weigh Scale Design Using AD7190 with Internal PGA (CN0102)
• Number Of Bits: 24
• Sampling Rate (per Second): 4.8k
• Number Of Converters: 1
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 24-TSSOP (0.173", 4.40mm Width)
• Resolution (bits): 24bit
• Sampling Rate: 4.8kSPS
• Input Channel Type: Pseudo Differential
• Supply Voltage Range - Analog: 4.75V To 5.25V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DOUT/RDY
Continuous Conversion Mode
Continuous conversion is the default power-up mode. The
AD7190 converts continuously, the RDY bit in the status
register going low each time a conversion is complete. If CS is
low, the DOUT/ RDY line also goes low when a conversion is
completed. To read a conversion, the user writes to the com-
munications register, indicating that the next operation is a read
of the data register. When the data word has been read from the
data register, DOUT/ RDY goes high. The user can read this
register additional times, if required. However, the user must
ensure that the data register is not being accessed at the
completion of the next conversion or else the new conversion
word is lost.
SCLK
DIN
CS
0x58
Figure 30. Continuous Conversion
Rev. B | Page 31 of 40
DATA
When several channels are enabled, the ADC continuously
loops through the enabled channels, performing one conversion
on each channel per loop. The data register is updated as soon
as each conversion is available. The DOUT/ RDY pin pulses low
each time a conversion is available. The user can then read the
conversion while the ADC converts on the next enabled channel.
If the DAT_STA bit in the mode register is set to 1, the contents
of the status register are output along with the conversion each
time that the data read is performed. The status register indicates
the channel to which the conversion corresponds.
0x58
DATA
AD7190