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Design Advantages:
1. Analog-to-digital isolation
In
terms of layout, a strict distinction has been made between analog and
digital circuits. Physically, it separates sensitive analog components
from noisy digital components, prevents digital component noise from
mixing into the signal system, and maintains a clean environment in the
analog area. The connection between the ground plane, the power supply,
and the "star" ground is constructed by multiple wide copper strip to
obtain minimal resistance and inductance. 0Ω resistor grounding prevents
AC coupling between the analog and digital ground planes.
2. Linear regulated power supply
The
output of the linear regulated power supply bypass tantalum capacitor
has an ESR value of 2Ω. This value is in the center of the stability
range, which effectively compensates for the LDO to avoid the
oscillation filtering caused by the ESR of the output capacitor being
too high or too low, and the X7R level is selected for the
high-frequency capacitor, which increases the high-frequency noise
filtering effect and transient response, and maintains the stability of
the output voltage.
Precision measurement has been extended to
applications that require higher and higher power efficiency and low
noise. And as the power rails to power the ADC, a high PSRR LDO is used
to handle thermal noise and flicker noise to ensure an excellent
signal-to-noise ratio.
3. Reference design
Reference is the
backbone of ADCs. With a high-precision series voltage reference with
very low output noise and drift, it can be used as ideal ADC reference.
At the same time, the reference output pin is selected with a tantalum
capacitor with large ESR, which stores enough charge for the internal
conversion capacitor extraction of the ADC to ensure the stability of
the reference voltage.
4. Wheatstone bridge
The Wheatstone
bridge test interface is a high-precision and high-sensitivity test
method that collects the voltage at both ends of a variable bridge by
judging the balance of the bridge. At the same time, this avoids the
error caused by the change of power supply over time, cancels out the
resistance of the wire, eliminates the influence of the connecting wire,
and provides a stable signal source for tests. Both the left and right
wings of the board provide a test bridge interface, which allows users
to evaluate the performance of the ADC in an intuitive way.
Package Included:
- 1 x Data Acquisition Board
Note:
- Battery is not included.
-
Pictures below are for reference only. The appearance of the products
are subject to the actual received goods. Thank you for your
understanding!
Compatible with any ADC module
IO ports make it convenient to access peripherals
Debugging interfaces are designed with two rows of pins, which is convenient for accessing probes
Host Computer Software:
One channel
Multiple channels
Independent display of multiple channels
Application:
