MCP3565R Two-Channel, 153.6 ksps, Low Noise 24-Bit Delta-Sigma ADC with Internal Voltage Reference Features General Description One Differential or Two Single-Ended Input The MCP3565R is a one differential channel or two Channels single-ended channels, 24-bit Delta-Sigma Analog- to-Digital Converter (ADC) with a programmable data 24-Bit Resolution rate of up to 153.6 ksps. It offers integrated features, Programmable Data Rate: Up to 153.6 ksps such as internal voltage reference, internal oscillator, Programmable Gain: 0.33x to 64x temperature sensor and burnout sensor detection, in 106.7 dB SINAD, -116 dBc THD, 120 dBc SFDR order to reduce system component count and total (Gain = 1x, 4800 SPS) solution cost. Low-Temperature Drift: The MCP3565R ADC is fully configurable with Over- - Offset error drift: 4/Gain nV/C (AZ MUX = 1) sampling Ratio (OSR) from 32 to 98304 and gain from - Gain error drift: 0.5 ppm/C (Gain = 1x) 1/3x to 64x. The device includes an internal sequencer (SCAN mode) with multiple monitor channels and a Low Noise: 90 nV (Gain = 16x,12.5 SPS) RMS 24-bit timer to be able to automatically create conver- RMS Effective Resolution: Up to 23.3 Bits sion loop sequences without needing MCU communi- Wide Input Voltage Range: 0V to AV DD cations. Advanced security features, such as CRC and Selectable Internal 2.4V Voltage Reference with register map lock, can ensure configuration locking and 15 ppm/C Drift integrity, as well as communication data integrity for Differential Voltage Reference Inputs secure environments. Internal Oscillator or External Clock Selection The device comes with a 20 MHz SPI-compatible serial Ultra-Low Full Shutdown Current Consumption interface. Communication is largely simplified with 8-bit (< 2.4 A) commands, including various Continuous Read/Write Internal Temperature Sensor modes and 24/32-bit multiple data formats that can be accessed by the Direct Memory Access (DMA) of an Burnout Current Sources for Sensor Open/Short 8-bit, 16-bit or 32-bit MCU. Detection 24-Bit Digital Offset and Gain Error Calibration The MCP3565R device is available in an ultra-small, Registers 2 mm x 2 mm x 0.55 mm 12-Lead UQFN package and is specified over an extended temperature range from Internal Conversions Sequencer (SCAN mode) -40C to +125C. for Automatic Multiplexing Advanced Security Features: Applications - 16-bit CRC for secure SPI communications - 16-bit CRC and IRQ for securing Precision Sensor Transducers and Transmitters: configuration Pressure, Strain, Flow and Force Measurement - Register map lock with 8-bit secure key Factory Automation and Process Controls - Monitor controls for system diagnostics Portable Instrumentation 20 MHz SPI-Compatible Interface with Mode 0,0 Temperature Measurements and 1,1 AV : 2.7V-3.6V DD DV : 1.8V-3.6V DD Extended Temperature Range: -40C to +125C Package: 2 mm x 2 mm x 0.55 mm 12-Lead UQFN 2020-2021 Microchip Technology Inc. DS20006401C-page 1MCP3565R Package Type 12-Lead UQFN* (2 mm x 2 mm x 0.55 mm) A. MCP3565R: Single Channel Device 12 11 10 A 1 9 SDO GND EP REFIN- 2 8 SDI 13 REFIN+ 3 7 SCK 456 *Includes Exposed Thermal Pad (EP) see Table 3-1. Functional Block Diagram REFIN+/OUT AV DV DD DD AMCLK VREF SEL Clock + Voltage 2.4V Generation Reference - DMCLK/DRCLK (RC REFIN- Oscillator) V - V + REF REF OSR 3:0 DMCLK PRE 1:0 V IN+ + + x - SDO nd 3 1 V Offset/Gain IN- 6 2 Order SINC Filter Digital SPI SINC SDI Calibration Analog Modulator with Digital Filter Interface CH0 SCK with Analog Gain and Control Differential CH1 Gain CS Multiplexer 6 A/D Converter Burnout POR POR Current AV DV DD DD Sources Monitoring Monitoring TEMP A AV GND DD Diodes A D GND GND ANALOG DIGITAL DS20006401C-page 2 2020-2021 Microchip Technology Inc. CH1 AV DD DV DD CH0 D GND CS