MCP3564R-E/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
MCP3564R-E/ST is a 24-bit delta-sigma analog-to-digital converter from Microchip with an integrated voltage reference, 8 differential/pseudo-differential input channels, and SPI interface in a TSSOP-20 package. It achieves up to 153.6 ksps conversion rate with 0.0032% maximum linearity error on a 3.3 V supply. Suited for industrial sensor interfaces, precision weighing scales, and medical instrumentation requiring high-resolution analog acquisition.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- MCP3564R-E/ST Datasheet PDF
- Category
- Integrated Circuit
- 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 ADC with integrated precision voltage reference eliminates external reference components
- 8 selectable input channels supporting differential, pseudo-differential, and single-ended configurations
- SPI-compatible interface with up to 20 MHz clock, enabling fast data readout in embedded systems
- Programmable oversampling ratio (32 to 98304) for flexible noise-versus-speed tradeoff
- Wide analog input range: -2.7 V to +3.6 V, accommodating diverse sensor signal levels
Applications
The MCP3564R-E/ST excels in precision measurement systems where high resolution and low noise are critical, such as industrial weigh scales, strain-gauge bridges, and temperature acquisition chains using RTD or thermocouple sensors. Its 8-channel multiplexed input and integrated voltage reference simplify multi-sensor designs that require simultaneous monitoring of several slow-varying signals at 24-bit resolution. The device is also well-suited for medical diagnostic equipment, energy metering, and laboratory instruments demanding low 0.0032% linearity error.
Specifications
| Manufacturer Package Code | TSSOP-20 |
| Factory Lead Time | 13Weeks |
| YTEOL | 19 |
| Analog Input Voltage-Max | 3.6V |
| Analog Input Voltage-Min | -2.7 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 | 8 |
| Number of Bits | 24 |
| 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
Compatible alternatives and drop-in replacements for MCP3564R-E/ST:
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Frequently Asked Questions
How does the MCP3564R-E/ST achieve 24-bit resolution, and what oversampling ratio settings are available?
The MCP3564R-E/ST uses a delta-sigma modulation architecture combined with a programmable digital decimation filter. The oversampling ratio (OSR) can be configured from 32 to 98304, trading conversion speed for noise reduction. At OSR 98304 the effective number of bits approaches 24-bit, while at OSR 32 the device achieves up to 153.6 ksps throughput, making it flexible across slow precision and faster scanning applications.
Which precision industrial sensors are best matched to the MCP3564R-E/ST input range of -2.7 V to +3.6 V?
The MCP3564R-E/ST's bipolar analog input range of -2.7 V to +3.6 V accommodates bridge-type sensors such as load cells and pressure transducers that produce differential outputs centered near 0 V, as well as single-supply sensors outputting 0 V to 3.3 V. RTD conditioning circuits and thermocouple amplifiers feeding millivolt-level outputs benefit from the device's integrated voltage reference and 24-bit resolution, avoiding separate precision ADC stages.
For a multi-channel temperature monitoring system, how many sensors can the MCP3564R-E/ST scan simultaneously, and how quickly?
The MCP3564R-E/ST provides 8 input channels selectable via an internal MUX, supporting up to 8 differential or 16 single-ended sensor connections. At OSR 32 the maximum throughput is 153.6 ksps total, meaning each of 8 channels can be sampled at approximately 19.2 ksps per channel—fast enough for most industrial temperature monitoring loops while maintaining 24-bit dynamic range. Channel switching is software-programmable via the SPI interface at up to 20 MHz.
How does MCP3564R-E/ST compare to a 16-bit SAR ADC for a precision weighing application?
A 16-bit SAR ADC provides at most 65536 counts of resolution, whereas the MCP3564R-E/ST's 24-bit delta-sigma architecture delivers up to 16 million counts, enabling sub-milligram discrimination on a 10 kg scale. Additionally, the integrated voltage reference in the MCP3564R-E/ST reduces design complexity and temperature drift versus an external reference required by most 16-bit SAR solutions. The tradeoff is lower throughput: SAR ADCs sample at megahertz rates while the MCP3564R-E/ST peaks at 153.6 ksps.
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