MCP3461-E/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP3461-E/ST is a 2-channel, 24-bit delta-sigma ADC with SPI interface, offering 0.0032% maximum linearity error and an analog input range of 0.1 V to 3.7 V. It is housed in a TSSOP-20 package, suited for precision sensor measurements and industrial data acquisition applications.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- MCP3461-E/ST Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.7700(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 24-bit delta-sigma conversion for ultra-high-resolution measurement accuracy
- 2 differential analog input channels selectable via internal multiplexer
- 0.0032% maximum linearity error for precision sensor data acquisition
- SPI-compatible interface for direct connection to any microcontroller
- Analog input range 0.1 V to 3.7 V compatible with standard sensor output levels
- TSSOP-20 package providing compact footprint for high-density PCBs
Applications
The MCP3461-E/ST is used in precision industrial measurement systems including weigh scales, pressure sensors, and temperature transmitters that require 24-bit resolution to detect sub-millivolt signal changes. Its 2-channel differential input accommodates bridge sensor configurations such as Wheatstone bridges for strain and load cell measurements. Energy metering, laboratory instrumentation, and medical diagnostic equipment also rely on its low linearity error for accurate analog-to-digital conversion of weak sensor signals.
Specifications
| Manufacturer Package Code | TSSOP-20 |
| Factory Lead Time | 13Weeks |
| YTEOL | 18 |
| Analog Input Voltage-Max | 3.7V |
| Analog Input Voltage-Min | 0.1V |
| Converter Type | ADC, DELTA-SIGMA |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e3 |
| Linearity Error-Max (EL) | 0.0032% |
| Number of Analog In Channels | 2 |
| Number of Bits | 16 |
| Number of Functions | 1 |
| Output Bit Code | 2'S COMPLEMENT BINARY |
| Output Format | SERIAL |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP20,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Sample Rate | 0.1536MHz |
| Sample and Hold / Track and Hold | SAMPLE |
| Screening Level | TS 16949 |
| Supply Current-Max | 0.37mA |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| ## MCP3461-E/ST Alternates Showing results | Image |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Philippines |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MCP3461-E/ST:
suggested
Frequently Asked Questions
What resolution does the MCP3461-E/ST provide, and how does it benefit weigh-scale applications?
The MCP3461-E/ST delivers 24-bit resolution, giving up to 16 million discrete codes over the input range. For a load cell with a full-scale output of 20 mV, this resolves approximately 1.2 nV per code, enabling measurement accuracy well below 0.001% of full scale which is essential for legal-for-trade weighing instruments requiring 10,000 division resolution.
How many analog input channels does the MCP3461-E/ST support, and can it handle differential bridge sensors?
The MCP3461-E/ST has 2 single-ended or 1 differential analog input channel, directly accommodating Wheatstone bridge sensors that produce differential voltage outputs typically between 1 mV/V and 3 mV/V. With a 3.3 V excitation voltage, the bridge signal spans roughly 3 mV to 10 mV, which the 24-bit ADC resolves into over 50,000 counts for sub-0.01% measurement precision.
For high-channel-count industrial logger designs, when would the MCP3461-E/ST be chosen over its 4-channel sibling MCP3462?
The MCP3461-E/ST is the right choice when only 2 input channels are needed, reducing per-node cost versus the 4-channel MCP3462 in applications where additional inputs are unused. In distributed sensor network nodes powered by a 3.3 V bus, using the 2-channel device keeps per-node BOM cost lower and simplifies firmware, since the MUX register only needs to configure 2 channel positions rather than 4.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.7700 | $1.77 |
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