MICROCHIP MCP3561RT-E/NC

The MCP3561/2/4R are 1/2/4-channel, 24-bit, Delta-Sigma Analog-to-Digital Converters (ADCs) with programmable data rate of up to 153.6 ksps. They offer integrated features, such as internal voltage reference, internal oscillator, temperature sensor and burnout sensor detection, in order to reduce system component count and total solution cost. The MCP3561/2/4R ADCs are fully configurable with Oversampling Ratio (OSR) from 32 to 98304 and gain from 1/3x to 64x. These devices include 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 ensure configuration locking and integrity, as well as communication data integrity for secure environments. These devices come with 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 MCP3561/2/4R devices are available in a leaded 20-lead TSSOP package, as well as in an ultra-small, 3 mm x 3 mm x 0.55 mm 20-lead UQFN-20 package and are specified over an extended temperature range from -40°C to +125°C.

• One/Two/Four Differential or Two/Four/Eight Single-Ended Input Channels
• 24-Bit Resolution
• Programmable Data Rate: Up to 153.6 ksps
• Programmable Gain: 0.33x to 64x
• 106.7 dB SINAD, -116 dBc THD, 120 dBc SFDR (Gain = 1x, 4800 SPS)
• Low-Temperature Drift: - Offset error drift: 4/Gain nV/°C (AZ_MUX = 1) - Gain error drift: 0.5 ppm/°C (Gain = 1x)
• Low Noise: 90 nVRMS (Gain = 16x, 12.5 SPS)
• RMS ENOB: Up to 23.3 Bits
• Wide Input Voltage Range: 0V to AVDD
• Selectable Internal 2.4V Voltage Reference with 15 ppm/°C drift
• Differential Voltage Reference Inputs
• Internal Oscillator or External Clock Selection
• Ultra-Low Full Shutdown Current Consumption (< 2.4 μA)
• Internal Temperature Sensor
• Burnout Current Sources for Sensor Open/Short Detection
• 24-Bit Digital Offset and Gain Error Calibration Registers
• Internal Conversions Sequencer (SCAN mode) for Automatic Multiplexing
• Dedicated IRQ Pin for Easy Synchronization
• Advanced Security Features: - 16-bit CRC for secure SPI communications - 16-bit CRC and IRQ for securing configuration - Register map lock with 8-bit secure key - Monitor controls for system diagnostics
• 20 MHz SPI-Compatible Interface with Mode 0,0 and 1,1
• AVDD: 2.7V - 3.6V
• DVDD: 1.8V - 3.6V
• Extended Temperature Range: -40°C to +125°C
• Package: 3 mm x 3 mm x 0.55 mm 20-Lead UQFN and 6.4 mm x 6.4 mm x 1 mm 20-Lead TSSOP

• Precision sensor transducers and transmitters: pressure, strain, flow and force measurement
• Factory automation and process controls
• Portable instrumentation
• Temperature measurements