appropriate ADC evaluation board

jovialjha on Mar 2, 2015

I am designing a single bit sigma delta ADC. My BW is 50mHz to 250Hz. Sampling frequency is 32kHz or 64kHz. To get a hands-on on testing the ADC, I am looking for an evaluation board with a similar ADC. Can u suggest me a suitable evaluation board for the same ? It would be good if I can view the output both at the 1-bit internal quantizer and the output of the decimation filter.

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0 jcolao

on Mar 18, 2015 10:04 PM

Hi Jovialjha,

Below is the short list of Sigma delta ADC that possibly fit to your requirement.

ADI Sigma-Delta ADC portfolio range from 8bit to 24 bit resolution. And these parts are available with their evaluation board and software, you can visit ADI website Analog Devices | Mixed-signal and digital signal processing ICs for details. In case you wanted search other products base from your specification, you use parametric search .Please refer to link Selection Table for Precision below.

These ADCs are already packaged and access to the output quantizer might not be possible. There is the Dout, pin which outputs the conversion results.

Part #	Device Primary Function	Resolution	Throughput Rate	# ADC Inputs	FPBW (typ)	Vsupply Positive (min)	Vsupply Positive (max)	Power Dissipation (typ)	Operating Temp Range	Package
AD7787	Precision	24	120 SPS	2	28 Hz	2.5	5.25	800 µW	-40 to +105	10 ld MSOP
AD7791	Precision	24	120 SPS	1	28 Hz	2.5	5.25	800 µW	-40 to +105	10 ld MSOP
AD7790	Precision	16	120 SPS	1	28 Hz	2.5	5.25	800 µW	-40 to +105	10 ld MSOP
AD7709	Precision	16	105 SPS	4	25 Hz	2.7	5.25	8.8 mW	-40 to +85	24 ld TSSOP
AD7719	Precision	24	105 SPS	6	25 Hz	2.7	5.25	10 mW	-40 to +85	28 ld TSSOP,28 ld SOIC - Wide
AD7707	Precision	16	500 SPS	3	131 Hz	2.7	5.25	3.75 mW	-40 to +85	20 ld SOIC - Wide,20 ld TSSOP
AD7706	Precision	16	500 SPS	3	131 Hz	2.7	5.25	6.5 mW	-40 to +85	16 ld PDIP,16 ld TSSOP,16 ld SOIC - Wide
AD7705	Precision	16	500 SPS	2	131 Hz	2.7	5.25	6.5 mW	-40 to +85	16 ld PDIP,16 ld SOIC - Wide,16 ld TSSOP
AD7730L	Precision	24	600 SPS	2	23.4 Hz	4.75	5.25	32.5 mW	-40 to +85	24 ld SOIC - Wide,24 ld TSSOP
AD7731	Precision	24	6.4 kSPS	3	31.6 Hz	2.7	5.25	67.5 mW	-40 to +85	24 ld PDIP,24 ld SOIC - Wide,24 ld TSSOP
AD7715	Precision	16	500 SPS	1	200 Hz	3	5.25	9.5 mW	-40 to +85	16 ld PDIP,16 ld SOIC - Wide,16 ld TSSOP
AD7713	Precision	24	205 SPS	3	53 Hz	4.75	10.5	5.5 mW	-55 to +125	24 ld PDIP,24 ld SOIC - Wide

Regards,

Jonathan

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