MCP3202B 12-bit Dual-Channel SPI ADC (DIP-8)
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Prices updated: 13 Oct 2026
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About this product
A 12-bit, two-channel successive approximation ADC with an SPI serial interface, operating from 2.7V to 5.5V. It has on-chip sample and hold and is suited to reading analog sensors with a microcontroller in low-power projects.
Specifications
- Resolution
- 12-bit
- Channels
- 2 (single-ended or pseudo-differential)
- Interface
- SPI (modes 0,0 and 1,1)
- Supply voltage
- 2.7V to 5.5V
- Sampling rate
- 100 ksps at 5V, 50 ksps at 2.7V
- Linearity
- ±1 LSB max DNL and INL (MCP3202-B)
- Operating temperature
- -40°C to +85°C
- Package
- 8-pin PDIP, SOIC, TSSOP
Frequently asked questions
How do I connect the MCP3202B to an Arduino or ESP32?
Connect CLK, DIN, DOUT and CS to the SPI pins and a chip select pin of your board, supply VDD, and set VREF to the reference voltage, since the output code scales to VREF.
Can it run from a 3.3V supply?
Yes. The supply range is 2.7V to 5.5V, but the maximum sampling rate drops to 50 ksps at 2.7V compared with 100 ksps at 5V.
