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Category:ADC - Revision history
2026-07-22T00:20:52Z
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Chao: /* Selection Guide */
2020-09-11T06:41:04Z
<p><span dir="auto"><span class="autocomment">Selection Guide</span></span></p>
<p><b>New page</b></p><div>== ADC Chip List ==<br />
{| class="wikitable sortable"<br />
|-<br />
! Type !! Resolution (bits) !! Max Sample Rate SPS (sample per second) !! Channel !! Price? !! Package<br />
|-<br />
| ADC081S051 / ADC0832 || 8 || 500k / 31.25k || 1/2 || / || SOT23-6 / DIP8<br />
|-<br />
| ADS1110 / ADS1115 [http://www.electrodragon.com/product/ads1115-16bits-adcpga-breakout-board/ avaiable here] / ADS1230 || 16 / 16 / 20 || 240 / 860 / 80 || 1 / Four Single-Ended or Two Differential Inputs / 1 || / / 4 || 10-Pin VSSOP / PGA<br />
|-<br />
| MCP3201 / MCP3202 / MCP3421 3425 || 10/12/18 16 || 22K / 100K / 240 || 1 || $0.78, 3 / 3 /4 || SOP8 / SOP8 / SOT23-6<br />
|-<br />
| ADC101S021 / ADC121S705 || 10 / 12 || 10K / 1MSRS || 1 || || SOT23-6 / VSSOP-8 <br />
|-<br />
| TLC549 || 8 || 40K || 1 || 3.5 || SOP8<br />
|}<br />
The rest: <br />
* TM7711 - 0.75, used in weight, low frequency<br />
* ADC0804, ADC0805, ADC0809, ADC1061, ADC0838<br />
* AD7705<br />
* TLC549<br />
<br />
* [[ADS1115]]<br />
* MCP3201 - 2.7V 12-Bit A/D Converter with SPI™ Serial Interface<br />
* PCF8591 - 8-bit A/D and D/A converter<br />
<br />
* PCF8591 IC datasheet - [[File:PCF8591.pdf]]<br />
<br />
<br />
<br />
<br />
== Schematic ==<br />
<br />
Breakout Board<br />
<gallery><br />
File:Ads1115.png | ADS1115 AD<br />
File:Ads1115 board.png | ADS1115<br />
File:MCP4725.png | MCP4725 DA 12bit<br />
File:Pcf8591.jpg | PCF8591 AD/DA 8bit<br />
</gallery><br />
<br />
Application <br />
<gallery><br />
File:Mcp3421_battery_monitor.png | MCP3421 monitor voltage, charging current<br />
File:Ac-wattmeter-schematic.jpg | MCP3202 AV voltage monitor, ACS721 current-to-voltage analog read<br />
<br />
</gallery><br />
<br />
== Selection Guide ==<br />
* ADS1015<br />
<br />
{| class="wikitable sortable"<br />
|-<br />
! Header text !! channels !! Header text<br />
|-<br />
| [[ADS1115]] || 4 || 16bit<br />
|-<br />
| [[ADS1220]] || 4 || 24bit<br />
|-<br />
| [[HX711]] || - || -<br />
|}<br />
<br />
== Documents ==<br />
* [[:file:ADS1X15_library.zip|ADS1115 demo code]]<br />
* [[:File:Ads1115.pdf|ADS1115 Datasheet]]<br />
<br />
[[category: AD/DA]]</div>
Chao