AD7294 Analog Devices, AD7294 Datasheet - Page 26

• Manufacturer Part Number: AD7294
• Description: 12-Bit Monitor and Control System with Multichannel ADC, DACs, Temperature Sensor, and Current Sense
• Manufacturer: Analog Devices

Specifications of AD7294

• Resolution (bits): 12bit
• # Chan: 9
• Sample Rate: 200kSPS
• Interface: I²C/Ser 2-Wire,Ser
• Analog Input Type: Diff-Uni,SE-Uni
• Ain Range: (Vref) p-p,2 V p-p,Uni (Vref),Uni (Vref) x 2
• Adc Architecture: SAR
• Pkg Type: CSP

AD7294
The
Suitable reference sources for the
AD1582, ADR431, REF193, and ADR391. In addition, choosing
a reference with an output trim adjustment, such as the ADR441,
allows a system designer to trim system errors by setting a
reference voltage to a voltage other than the nominal.
Long-term drift is a measure of how much the reference drifts
over time. A reference with a low long-term drift specification
ensures that the overall solution remains stable during its entire
lifetime. If an external reference is used, select a low temperature
coefficient specification to reduce the temperature dependence
of the system output voltage on ambient conditions.
AD7294
can also operate with an external reference.
AD7294
include AD780,
Rev. H | Page 26 of 48
V
The
which the I
the supply to which the I
and output threshold levels for the digital logic pins and the
I
to easily interface to both 3 V and 5 V processors. For example,
if the
be powered from a 3 V supply, allowing a large dynamic range
with low voltage digital processors. Thus, the
used with the 2 × V
capable of interfacing to 3 V digital parts. Decouple this pin to
DGND with a 100 nF and a 1 μF capacitor.
SENSE
DRIVE
AD7294
OVERRANGE pins. The V
AD7294
FEATURE
2
C interface operates. The V
also has a V
is operated with a V
REF
input range with a V
2
DRIVE
C bus is pulled. This pin sets the input
feature to control the voltage at
DRIVE
DD
of 5 V, the V
feature allows the
DRIVE
DD
pin is connected to
of 5 V, yet remains
AD7294
Data Sheet
DRIVE
can be
pin can
AD7294