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370
Tibbo Project System (TPS)
© Tibbo Technology Inc.
To lower noise and improve resolution, this Tibbit has its own isolated power domain.
ADC characteristics:
·
Each channel measures signals from -10V to +10V.
·
With our official Tibbo BASIC library (performing the data correction using the
calibration data) you can measure the voltage level on one channel in about
140ms.
·
Effective flicker-free resolution is better than 13 bits.
·
Zero offset error is within 0.005% of the input signal's scale (20V, from -10V to
+10V).
·
Full-scale nonlinearity error is around 1% (after the range correction).
Combine this Tibbit with
(DB9M connector). It's
not common but possible to use the latter for wiring into the ADC's inputs.
LEDs
There are two red, one yellow, and one green LED. The first red LED is connected to
the SCL line of the I2C interface, the second one – to the -RST line of the PIC
micro. The yellow LED is connected to the SDA line of the I2C interface. The green
LED is on the -INT line.
Sample project
The use of this Tibbit is illustrated by a Tibbo BASIC test project. Yo can find it
here:
https://github.com/tibbotech/CA-Test-Tibbit-52
7.2.9.59
#53, M2S: Isolated 4-20mA ADC
Function:
Isolated 4-20mA ADC
Category:
Input module
Special needs:
--- (is/-15V power is generated internally)
Power requirements:
5V/100mA
Mates with:
See also:
,