| Compliant | |
| EAR99 | |
| Active | |
| 8473.30.11.80 | |
| Automotive | No |
| PPAP | No |
Dev Kit Description
EVAL-CN0254-SDPZ is Low Cost, 16-Bit, 250 kSPS, 8-Channel, Isolated Data Acquisition System Evaluation Board. it is used the AD7689 16-bit, 8-channel, 250 kSPS PulSAR ADC along with two AD8608 low cost precision quad op amps to provide the entire signal conditioning and digitizing function in the data acquisition system. The only other op amp required is the AD8605 that is used to buffer the reference voltage from the AD7689.
The AD8605 and AD8608 are low cost single and quad rail-to-rail input and output CMOS amplifiers. The AD8608 inverts, level shifts, and attenuates the ±10 V input signal so that it matches the input range of the ADC, which is 0 V to +4.096 V when using a +4.096 V reference and a +5 V single supply.
The AD8605 acts as an external reference buffer to provide sufficient driving ability for level shifting. The AD8605 and AD8608 feature very low offset voltage, low input voltage and current noise, and wide signal bandwidth, therefore making them good choices for a wide variety of applications. The low current and voltage noise of the AD8608 ensures that the resistor noise is the dominant term in the output noise for high input impedance. In the circuit, the input impedance (equal to R1) is 50 kΩ.
Dev Kit Additional Information
| EDA / CAD Models |