MCP3461R-E/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP3461R-E/ST is a 16-bit delta-sigma ADC with integrated voltage reference, featuring 2 differential analog input channels and SPI interface. It delivers up to 153.6 kSPS throughput with low noise performance, operating from a 3.3 V supply. Ideal for industrial sensors, process control, and portable measurement instruments requiring high-resolution data conversion.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- MCP3461R-E/ST Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.5700(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
- 16-bit delta-sigma ADC with integrated voltage reference for precision single-supply designs
- 2 differential analog input channels supporting ±3.6 V analog input range
- SPI-compatible interface with up to 153.6 kSPS output data rate
- Programmable gain amplifier (PGA) from 1/3 to 64 for flexible signal conditioning
- Ultra-low noise: 22.4 µVRMS at maximum resolution for accurate industrial measurements
Applications
The MCP3461R-E/ST is well suited for industrial process control and sensor measurement systems that demand 16-bit precision in a compact TSSOP-20 footprint. Its integrated voltage reference and programmable gain amplifier make it ideal for strain gauges, RTDs, thermocouples, and pressure transducers operating from 3.3 V rails. Battery-powered portable instruments and IoT data-acquisition nodes also benefit from its low-noise, low-power delta-sigma architecture.
Specifications
| Manufacturer Package Code | TSSOP-20 |
| Factory Lead Time | 13Weeks |
| YTEOL | 19 |
| Analog Input Voltage-Max | 3.6V |
| Analog Input Voltage-Min | -3.6 V |
| 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 |
| Supply Current-Max | 2.5mA |
| 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 |
| 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
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What resolution and throughput does the MCP3461R-E/ST deliver for precision measurement applications?
The MCP3461R-E/ST provides 16-bit resolution with an effective output data rate up to 153.6 kSPS, making it suitable for high-accuracy sensor acquisition. Its delta-sigma architecture achieves noise as low as 22.4 µVRMS, enabling precise measurement of small-signal sensors such as thermocouples and strain gauges.
How does the integrated voltage reference in MCP3461R-E/ST simplify circuit design compared to external-reference ADCs?
The built-in 2.4 V internal reference eliminates the need for an external precision reference component, reducing BOM cost and PCB area in space-constrained designs. The ADC still accepts an external reference on the VREF pin if higher accuracy or a different reference voltage is needed, giving designers flexibility without sacrificing simplicity in standard 3.3 V applications.
Which industrial sensor interfaces can the MCP3461R-E/ST programmable gain amplifier support directly?
The on-chip PGA supports gain settings of 1/3, 1, 2, 4, 8, 16, 32, and 64, covering input signals from millivolt-level bridge outputs up to the full ±3.6 V analog input range. This allows direct connection to RTDs, thermistors, load cells, and 4–20 mA current loops in industrial 3.3 V systems without external signal-conditioning amplifiers.
When would MCP3461R-E/ST be chosen over MCP3461-E/ST in a new design?
The MCP3461R-E/ST variant adds an integrated voltage reference and an internal oscillator, reducing external component count compared to MCP3461-E/ST which requires both externally. For cost-sensitive or space-constrained boards where a ±3.6 V analog input range and 16-bit accuracy must be achieved within a TSSOP-20 package operating from 2.7 V to 3.6 V supply, the R variant is the more efficient choice.
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