MCP3422A0-E/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
MCP3422A0-E/SN is an 18-bit delta-sigma analog-to-digital converter from Microchip, featuring 2 differential input channels and an I2C interface in an SOIC-8 package. It accepts differential input voltages from -2.048 V to +2.048 V with 0.0035% maximum linearity error. Designed for precision measurement applications including industrial sensors, medical instrumentation, and data acquisition systems.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP3422A0-E/SN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7900(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP3422A0-E/SN?
- 18-bit delta-sigma ADC for high-precision analog measurement
- 2 differential input channels with ±2.048 V input range
- I2C interface simplifies connection to microcontrollers
- Maximum linearity error of only 0.0035% for accurate readings
- SOIC-8 compact package with RoHS compliant construction
- Programmable gain amplifier (PGA) for direct small-signal sensing
What is MCP3422A0-E/SN used for?
The MCP3422A0-E/SN is designed for high-precision analog measurement tasks such as weighing scales, pressure transducer interfaces, and temperature profiling in industrial equipment, where 18-bit resolution captures subtle signal variations. Its I2C interface and differential input range of ±2.048 V allow direct connection to bridge sensors and thermocouples without external amplification. Medical instrumentation and laboratory data acquisition systems use this ADC for accurate low-noise digitization of slow-moving analog signals.
What are the specifications of MCP3422A0-E/SN?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 8Weeks |
| YTEOL | 9 |
| Analog Input Voltage-Max | 2.048V |
| Analog Input Voltage-Min | -2.048 V |
| Converter Type | ADC, DELTA-SIGMA |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Linearity Error-Max (EL) | 0.0035% |
| Number of Analog In Channels | 2 |
| Number of Bits | 18 |
| Number of Functions | 1 |
| Output Bit Code | 2'S COMPLEMENT BINARY |
| Output Format | SERIAL |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.23 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Sample Rate | 0.0024MHz |
| Screening Level | TS 16949 |
| Supply Current-Max | 0.18mA |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.30 |
| Country of Origin | Thailand |
Where can I find the MCP3422A0-E/SN datasheet?
MCP3422A0-E/SN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP3422A0-E/SN?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What resolution and input voltage range does the MCP3422A0-E/SN provide for precision measurement?
The MCP3422A0-E/SN provides 18-bit resolution with a differential input range of ±2.048 V. At maximum resolution, the theoretical LSB size is approximately 15.6 µV, enabling detection of very small signal variations in load cell, thermocouple, and bridge sensor applications.
How does the MCP3422A0-E/SN I2C interface simplify wiring in multi-sensor industrial systems?
The I2C interface requires only 2 wires — SDA and SCL — to connect up to 8 MCP3422A0-E/SN devices on a single bus using address pins. This greatly reduces wiring complexity compared to parallel or SPI ADC alternatives in 18-bit precision measurement systems with many channels.
Is MCP3422A0-E/SN suitable for direct connection to a Wheatstone bridge strain gauge without external amplification?
Yes, the built-in programmable gain amplifier supports up to 8x gain, boosting small bridge outputs of a few millivolts directly to the ±2.048 V ADC input range. Combined with 18-bit resolution and 0.0035% linearity error, this makes the MCP3422A0-E/SN a complete front-end for 350 Ohm strain gauge bridges in industrial weighing applications.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.7900 | $0.79 |
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