Microchip MCP3461R/MCP3561R Analog to Digital Converter (ADC)
16 or 24-Bit, 153.6 kSPS, Single Channel with Vref
The Microchip MCP3461R (MCP3561R) is a low-noise 16(24)-bit Delta-Sigma Analog-to-Digital Converter (ADC), with two single-ended or one differential input channels and programmable data rate of up to 153.6 kSPS. The ADC converters offer integrated features such as internal Vref, an oscillator, temperature sensor and burnout sensor detection, in order to reduce system component count and total solution cost.
The MCP3461R (MCP3561R) ADC is fully configurable with Oversampling Ratio (OSR) from 32 to 98304 and gain from 0.33X to 64X. The converter includes an internal sequencer (SCAN mode) with multiple monitor channels and a 24-bit timer to be able to automatically create conversion loop sequences without needing MCU communications. Advanced security features such as CRC and register map lock, can guarantee configuration locking and integrity as well as communication data integrity for secure environments.
The Microchip MCP3461R (MCP3561R) also features a 20 MHz SPI-compatible serial interface. Communication is largely simplified with 8-bit commands, including various continuous Read/Write modes and 24/32-bit multiple data formats that can be accessed by the Direct Memory Access (DMA) of an 8-bit, 16-bit or 32-bit MCU. The MCP3461R is available in an ultra-small, 3 mm x 3 mm UQFN-20, and leaded 6.4 mm x 6.4mm TSSOP-20 package and is specified over an extended temperature range from -40°C to +125°C.
MCP3x6xR Key Features
| MCP3x6xR Target Applications
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Parametrics
| Name | Value |
| Typical Supply Current (µA) | 930 |
| Typical INL (ppm) | 7 |
| Max Sample Rate (samples/sec) | 153.6k |
| Interface | SPI |
| Resolution (bits) | 16/24 |
| Supply Voltage Range (V) | 2.7 to 3.6 |
