MCP3422A0-E/MC Microchip Integrated Circuit (Small Outline No-lead) In Stock
Microchip MCP3422A0-E/MC is an 18-bit delta-sigma ADC with 2 differential input channels, I2C interface, and ±2.048 V input range, offering high precision and low noise for industrial sensor measurements and data acquisition systems.
- Manufacturer
- Microchip
- Package
- Small Outline No-lead
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP3422A0-E/MC Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.6352(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/MC?
- 18-bit resolution delta-sigma converter for high-precision measurements
- 2 differential input channels with ±2.048 V input range
- I2C interface with programmable address for multi-chip bus sharing
- Programmable data rate from 3.75 SPS to 240 SPS
- Integrated PGA with gains up to 8x for small-signal amplification
- DFN-8 compact package with linearity error max 0.0035%
What is MCP3422A0-E/MC used for?
The MCP3422A0-E/MC is designed for high-accuracy industrial sensor interfaces, precision weigh-scale systems, and medical instrumentation requiring 18-bit resolution over a ±2.048 V differential input range. It is also used in environmental monitoring, portable data loggers, and battery-powered instruments that benefit from its low-power I2C operation and compact DFN-8 footprint.
What are the specifications of MCP3422A0-E/MC?
| Pbfree Code | Yes |
| Manufacturer Package Code | DFN-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-N8 |
| 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 | SOLCC8,.12,20 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| 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 | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Package | Small Outline No-lead |
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/MC datasheet?
MCP3422A0-E/MC Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP3422A0-E/MC?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the effective resolution and input range of MCP3422A0-E/MC at its slowest sample rate?
At 3.75 SPS, the MCP3422A0-E/MC delivers its full 18-bit resolution over a ±2.048 V differential input range, giving designers maximum dynamic range of approximately 131,072 codes per volt. This makes it ideal for precision weigh-scale and low-drift sensor readout applications.
How many MCP3422A0-E/MC devices can share a single I2C bus in a multi-channel data acquisition design?
The MCP3422A0-E/MC has a factory-programmed I2C address with A0 variant code, and Microchip offers address variants A0 through A7, allowing up to 8 devices on a single I2C bus. Each device provides 2 differential channels, enabling up to 16 differential inputs with 18-bit resolution.
For a temperature-measurement design, how does MCP3422A0-E/MC's integrated PGA benefit low-output thermocouple sensors?
The MCP3422A0-E/MC integrates a programmable gain amplifier with gains of 1×, 2×, 4×, and 8×, directly amplifying small thermocouple signals typically in the microvolt-to-millivolt range without an external op-amp stage. At 8× gain the effective input range narrows to ±256 mV, matching common thermocouple output spans.
What PCB footprint and package constraints apply when using MCP3422A0-E/MC in a compact board design?
The MCP3422A0-E/MC is housed in a DFN-8 package (2 mm × 3 mm body) with an exposed thermal pad, providing a small footprint suitable for space-constrained portable instruments. The 0.5 mm pitch requires standard fine-pitch SMT assembly and reflow soldering practices for reliable connections.
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About Microchip
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.6352 | $0.64 |
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