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MCP3460RT-E/2LX Datasheet(PDF) 2 Page - Microchip Technology |
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MCP3460RT-E/2LX Datasheet(HTML) 2 Page - Microchip Technology |
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2 / 103 page  MCP3460R DS20006975A-page 2 2025 Microchip Technology Inc. and its subsidiaries General Description The MCP3460R is a precision 16-bit single differential- channel (two single-ended) ADC device, with programmable data rates up to 153.6 kSPS. The MCP3460R device uses a second-order delta- sigma multi-bit modulator with Oversampling Ratio (OSR) from 32 to 98304 and gain settings ranging from 1/3x to 64x. The dual SINC filter implementation can achieve a SINAD of 97.2 dB or up to 153.6 kSPS ADC conversion rate. MCP3460R offers two selectable conversion modes: Continuous Conversion mode and One-Shot Conversion mode. In One-Shot Conversion mode, the device enters a low-power mode automatically after each conversion is completed, while Continuous Conversion mode offers the capability of non-stop conversions of an individual channel until the ADC is instructed to stop. The MCP3460R includes an internal input-channel scan-sequencer (Scan mode) which offers automatic scanning of selected input channels and internal system resources such as Temperature, Supply Voltage, Offset Error and Gain Error. A 24-bit Timer can be used to create automatic conversion-loop sequences without the need for MCU communication. To reduce system component count and total solution cost, the MCP3460R device offers integrated features such as an Internal Voltage Reference, Internal Clock Oscillator, Internal Temperature Sensor and Programmable Gain, which are configurable using the bit settings of the internal configuration registers. The internal configuration registers are easily accessible via a 20 MHz SPI-compatible serial interface using simple 8-bit SPI Commands and communication protocols for various Continuous Read/Write Modes. The various data-format options offer flexible user- friendly connectivity with various 8-bit, 16-bit and 32- bit host MCUs. An internal 16-bit Cyclic-Redundancy-Checksum engine (CRC-16) protects the data integrity of the internal register settings (Register-Map Lock) and SPI communications. The device operates from an analog/digital supply of 2.7V to 3.6V and is available in a 3 mm x 3 mm x 1 mm, 20-Lead VQFN (2LX Package Code) which is specified over an Extended Temperature Range of -40°C to +125°C. Package Type Functional Block Diagram 1 17 2 3 4 5 6 78 9 10 15 14 13 12 11 20 19 18 16 CH0 CH1 SCK CS SDO EP 21 REFIN- NC REFIN+/OUT SDI IRQ/MDAT *Includes Exposed Thermal Pad (EP); see Table 3-1. MCP3460R 20-Lead, VQFN* (3 x 3 x 1 mm) AMCLK DMCLK/DRCLK POR AVDD Monitoring VREF+ MCLK IRQ/MDAT Digital SPI Interface and Control Clock Generation (RC Oscillator) DMCLK OSR[3:0] PRE[1:0] ANALOG DIGITAL SDO SDI SCK CS AGND DGND AVDD DVDD VIN+ VIN- - + 2nd Order Modulator with Analog Gain + x Offset/Gain Calibration POR DVDD Monitoring REFIN+/OUT REFIN- VREF- SINC3 Filter with Digital Gain SINC1 Filter A/D Converter Analog Differential Multiplexer CH0 TEMP Diodes AGND AVDD VREF_SEL Voltage Reference + ‐ 2.4V CH1 NC NC NC NC NC NC |
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