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MCP3421A0T-E/CH
ADC DELTA-SIGMA 18BIT I2C SOT-23-6
Microchip Technology
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Design a Custom BoardAbout This Component
Single-channel 18-bit delta-sigma analog-to-digital converter with differential inputs, integrated 2.048V reference, and programmable gain amplifier (1x, 2x, 4x, 8x). Features I2C serial interface, selectable conversion rates (3.75–240 SPS), and low power consumption (39–145 µA). Ideal for precision instrumentation, weigh scales, temperature sensing, and bridge signal conditioning applications.
Package: SOT-23-6 · 6 pins
Why does this need a breakout?
SOT-23-6 packages house precision regulators, voltage references, and level shifters with 0.95mm pin pitch—too fine for hand soldering and incompatible with breadboards. A breakout board provides through-hole headers for prototype work, eliminating soldering difficulty while enabling quick circuit iteration. Essential for developing with compact analog and power management ICs.
Specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Microchip Technology |
| Part Number | MCP3421A0T-E/CH |
| Package | SOT-23-6 |
| Pin Count | 6 |
| Data Interface | I2C |
| Input Type | Differential |
| Number of Bits | 18 |
| Number of Inputs | 1 |
| Voltage - Supply, Analog | 2.7V ~ 5.5V |
| Voltage - Supply, Digital | 2.7V ~ 5.5V |
What's Included
BILL OF MATERIALS
- 1x MCP3421A0T-E/CH soldered onto breakout PCB
- Pin headers pre-soldered (2.54mm / 0.1" pitch)
- All IC pins broken out to 2.54mm headers
Breakout Board Design
PCB SPECIFICATIONS
WIDTH
< 0.9" (straddles breadboard)
PITCH
2.54mm standard
SOLDER
Lead-free, reflow assembled
FINISH
FR4, lead-free HASL