Hi,
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The ADS1282 is not the best choice for measuring differential voltages greater than 2.5V. With a 5V reference source, the ADS1282 can measure signals up to +/- 2.5V. For measuring larger input signals you'd either…
Part Number: ADS8860 Other Parts Discussed in Thread: REF6250 , LM4120 , REF6050 , ADS8861 , OPA376 , THS4551 , LM7705 , OPA320 Hi,
I wonder if anyone can help me. I am using the ADS8860 ADC and some of the boards I have had manufacturered are exhibiting…
Hi Pavel,
The ADS1259 can measure differential voltages up to +/- Vref. Therefore, your reference voltage will need to be at least 3.6V, but I see no issues with using a larger reference, such as 5V.
I would recommend using a low-noise reference…
Hi,
1) The OPA228 offers superior noise performance.
2) A 5V reference will yield a full scale setting of ~ 5.3V so an input swing of 0 to 5V will work with no issues. Just be sure to ensure that AVDD-AVSS is always greater than VREF as the spec…
Part Number: ADS1258 Other Parts Discussed in Thread: OPA228 , OPA320 , REF6250 , For a prototype project i need to Measure the environmental data like Temperature, Humidity, IR Radiation, etc. I am planning to use OPA388 and INA326 stages as signal conditioning…
@ Kai, That is a great observation, thank you!
Hi Kevin,
I think Kai may be onto something... Looking at the typical quiescent currents of these devices and the loading, I would expect the total current consumption to be between 7-9 mA, so an oscillation…
Hi Patrick,
For the power supply, I would make sure that the LDO (or LDOs) that is powering all of these devices is able to supply more than enough current to every device. When first powering up the system, the LDO will need to drive much higher currents…
