Contents
What is the analog input range for an ADC?
The analog input range for this ADC is 0 to 5 V. The sensor signal should completely fill the ADC input span; hence, the ADC input data is translated as the op amp output data VOUT1= 0 V, and VOUT2= 5 V (the circuit uses a single 5-V power supply).
How big of an ADC do I Need?
The amplifier is connected to a 12-bit ADC with a ±10 volt full-scale bipolar range. The data logger will not respond to changes in pressure of less than 4.88 psi.
Why do I need a higher resolution ADC?
Depending upon what you’re trying to do the higher resolution may be overkill, like measuring the length of your driveway. But it may come in handy for sizing up the miter joints of the dining room cabinet you’re building.
Do you need high ADC resolution for miter joints?
But it may come in handy for sizing up the miter joints of the dining room cabinet you’re building. Likewise, high ADC resolution is sometimes handy and sometimes overkill, but it’s more difficult to quantify where the breakpoints are. You have to start with basic information:
What kind of sensor is used for DC and AC?
Micro USB Cable 1ft. ACS712 is a hall-effect linear current sensor IC manufactured by Allegro MicroSystems. It can be used for both AC and DC currents measurements. To operate it requires a 5V supply voltage and it will produce an analog voltage output proportional to the measurement current being sensed.
What are the uses of current and voltage sensors?
Current and voltage sensors are used for voltage and current monitoring, logging or proof-of-operation applications. AcuAMP switches and transducers provide discrete or analog output signals compatible with most PLCs, data loggers and SCADA systems. A simple LED current indicator model is also available.
Which is the best DC current transducer for automation?
DC Current Transducers The DCT series of DC current sensors is a family of high-performance transducers offering outstanding features, flexibility, and durability at an incredible price. 4 to 20 mA or +/-10 VDC bidirectional models DC current applications up to 1200A
How to choose reference voltage for an ADC-power electronic?
The value produced by a 10-bit ADC with a 5V reference and a 3.3V analog input signal (where 3.3V is the highest value measured at the input) would be: (V IN x 1,024) /V REF = (3.3 V x 1,024)/5 V = 675.84 However, the result, if V REF were 3.3 V, rather than 5 V, would be: (V IN x 1,024) /V REF = (3.3 V x 1,024)/3.3 V= 1,024
Can a strong driver circuit damage an ADC?
If the REF node is not driven by a strong driver circuit, then the voltage at the REF node (and input) will rise above the absolute maximum rated voltage and the ADC may be damaged if the voltage exceeds the breakdown voltage of devices on that process.
How to protect ADC inputs from overvoltage?
A common issue that arises when designing an ADC circuit is how to protect the ADC inputs from overvoltage. The protection of ADC inputs has many scenarios and potential solutions. ADCs from all vendors have similar needs in this respect.