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RE: AD7380 data rate

andreialejandro

Hi,

The maximum throughput rate for the AD7380 is 4 MSPS and it is for both ADC A and ADC B.

Regards,

Andrei
- 5 days ago
- Precision ADCs
- Q&A
RE: Ad7380 adc data reading issue

jcolao

Hi Shivashankar,

What are two snapshots? The 1st one has some noise while the other has a smooth top edge. What is the difference between the two? Are these signals coming from the ADC? Please correct me if I am wrong, it looks like this signal is…
- 1 month ago
- Precision ADCs
- Q&A
AD7380 SNR at higher input frequencies?

christer

Hi,

In the AD7380 datasheet (Figure 18) the SNR vs input frequency rolls off and there is no data provided above ~100 kHz. Is there a reason for this?

What kind of SNR could one expect for a signal at 1 or 2 MHz?

Thanks,

Christer
- 14 days ago
- Precision ADCs
- Q&A
FAQ(AD7380): The AD7380(AD738x) a 16-bit resolution ADC throughput rate is at 4MSPS. When resolution boost is enable allowing 18-bit conversion result. With the additional 2-bits, does the AD7380 would still able to maintain the throughput rate at 4MSPS...

elizabeth.uva

The AD7380 is capable to perform with throughput rates over 4MSPS using the correct SCLK at 80 Mhz frequency. When the normal averaging oversampling and resolution boost are enabled, the throughput rate will slow down as the oversampling ratio increases…
- over 1 year ago
- Precision ADCs
- Documents
FAQ(AD7380): The AD7380(AD738x family) ADC has an on-chip buffered 2.5V reference. Can this internal reference be use to supply external circuitry?

elizabeth.uva

The buffered 2.5V internal reference of the AD7380 is recommended to use for internal circuitry process. When this on-chip 2.5V reference is use for external circuit, it must be connected to an external buffer amplifier for example the ADA4807. The external…
- over 1 year ago
- Precision ADCs
- Documents
RE: Ad7380 - issue in register read and write

jcolao

Hi Shivashankar,

Apologies for the late reply.

Shivashankar said:
can you please share information on how to configure adc or any pullup resisors need to add for ad7380 and if possible please share the hdl design and driver code for the ad7380 .
…
- 19 days ago
- Precision ADCs
- Q&A
AD7380: FAQs

elizabeth.uva

Question:

The AD7380 has an on chip oversampling, Why is there a need for an oversampling?

Answer:

Oversampling has been a known method of processing conversion result to improve ADC performance for SAR ADC. Putting the oversampling process internally…
- over 2 years ago
- Precision ADCs
- Documents
AD7380: FAQ

jcolao

Q

The conversion result of the AD738x family generics is clocked-out in the SDOA and SDOB pins. In the typical schematic, these pins have a 100ohm resistor connected going to the digital interface. Can I connect this pin directly without the resistor…
- 7 months ago
- Precision ADCs
- Documents
AD7380 eval board performance

GBiswal462

Hello,

I am using the AD7380 Eval board for evaluating the ADC performance.

It is having two differential input channels. INA and INB. I am giving input to channel B.

1) Sinusoidal input is taken from Function generator at 200kHz, 3.3Vpp then fed to Balun…
- over 1 year ago
- Precision ADCs
- Q&A
AD7380/AD738x 80Mhz SCLK frequency

jcolao

Q

The AD7380/AD738x datasheet uses the 80Mhz SCLK frequency. Can a lower frequency be used in the communication interface?

A

AD738x has a throughput rate of 4MSPS. Faster SCLK frequency enables to achieve a higher throughput rate. The 80Mhz SCLK freq…
- 3 months ago
- Precision ADCs
- Documents