Hi,
The Reference Driver Design section of this document ( TIPD115 ) gives a comprehensive description of the key equations and parameters related to the design of the amplifier to buffer the external reference.
I hope this helps.
Regards, …
Hi Carlos,
To use this amplifier as a buffer, the input and feedback resistors must be the same. Figure 73 in the ADS8861 datasheet shows an example input driver.
We also have a reference design for a similar device, which can be found here (or search…
Hi Damien,
The reference inputs on the ADS1256 are switched-capacitor circuits that sample the applied differential reference voltage. Providing a low impedance reference source is important to ensure the reference capacitors get fully charged. The…
Hello Filip,
The ADS7851 is a SAR ADC, therefore the inputs of the device have to be driven with a low impedance source. In order to obtain the expected performance, the external driving circuit must be able to completely charge the ADC's internal sampling…
Konstantin,
Check out TI Precision Design TIPD115 ( http://www.ti.com/tool/tipd115 ). This document details the design and construction of an 18 -bit, 1 MSPS, data acquisition system which sounds like it would meet your needs. If the shunt is on the…
Part Number: THS4551 Other Parts Discussed in Thread: TIDA-01351 , , TINA-TI , THS4504 Dear team,
1. In the design guide of the TIDA-01351, the calculation result of the CFILT is 1.2nF, but in the later caculation, it is changed suddenly to 2nF, why…
