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Microchip Technology MCP3562R-E/ST
- Part No.:
- MCP3562R-E/ST
- Manufacturer:
- Microchip Technology
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MCP3562R-E/ST.pdf
- Description:
- IC ADC 24BIT SIGMA-DELTA 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:321
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Product details
Overview
MCP3562R-E/ST from Microchip Technology is a dual-channel, 24-bit delta-sigma analog-to-digital converter (ADC) with programmable gain (0.33x–64x), up to 153.6 ksps data rate, and integrated 2.4V voltage reference (15 ppm/°C drift). It operates across -40°C to +125°C and supports differential or single-ended inputs for precision sensor signal acquisition in industrial measurement systems.
For engineers reviewing the MCP3562R-E/ST datasheet, MCP3562R-E/ST pinout, MCP3562R-E/ST application, or MCP3562R-E/ST equivalent, this page delivers verified specifications, validated TSSOP-20 pin mapping, real-world use cases in pressure/temperature sensing, and two confirmed alternative parts with documented functional and application differences.
Technical Context
The MCP3562R-E/ST implements a 2nd-order modulator with analog gain stage followed by SINC³ digital filtering, supporting oversampling ratios from 32 to 98,304. Its internal sequencer (SCAN mode) enables autonomous multiplexed conversions across CH0–CH1 without MCU intervention.
It features dual-domain clocking: selectable internal RC oscillator (3.3–6.6 MHz) or external master clock (1–20 MHz), plus dedicated IRQ pin for synchronization. Security includes 16-bit CRC on SPI commands and register map lock with 8-bit secure key - critical for certified industrial firmware integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 24-bit no-missing-code; delivers up to 23.3-bit RMS effective resolution at low noise settings |
| Data Rate | Programmable up to 153.6 ksps; enables high-speed transient capture in dynamic sensor systems |
| Input Channels | Dual differential or four single-ended inputs; supports simultaneous monitoring of two independent transducers |
| Gain Range | 0.33x to 64x analog gain; accommodates mV-level bridge outputs and ±10V industrial signals |
| INL Error | ±7 ppm FSR at 1x gain; ensures sub-0.001% linearity for calibration-critical instrumentation |
| THD | -116 dBc (typical); minimizes harmonic distortion in high-fidelity sensor digitization |
| Supply Range | AVDD: 2.7–3.6V; DVDD: 1.8–3.6V; supports mixed-voltage microcontroller interfacing |
| Temp Range | -40°C to +125°C; qualified for under-hood automotive and factory-floor deployment |
Pinout & Package
Package: 20-Lead TSSOP (6.5 mm × 4.4 mm × 1 mm), leaded, RoHS-compliant, with exposed thermal pad not present in TSSOP variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CH0, CH1 | Analog input channels | Differential pair inputs for primary and secondary sensor channels; support burnout current sources for open-wire detection |
| REFIN+/OUT, REFIN- | Voltage reference interface | Accepts external reference or outputs internal 2.4V reference; REFIN- must be tied to AGND for single-ended operation |
| AVDD, DVDD, AGND, DGND | Power and ground domains | Separate analog/digital supplies reduce coupling noise; AGND/DGND isolation preserves 106.7 dB SINAD performance |
| SCK, CS, SDO, SDI | SPI interface signals | 20 MHz SPI (Mode 0,0 and 1,1); supports DMA-friendly 24/32-bit read/write formats for efficient MCU integration |
| IRQ/MDAT | Interrupt/data-ready output | Active-low pulse signals conversion completion or configurable monitor event; enables deterministic timing in real-time control loops |
| MCLK | Master clock input | Accepts external clock (1–20 MHz) or connects to internal oscillator output for precise timing control |
| NC (Pins 6,7,8,9,10,13,15) | No-connect terminals | Must be tied to AGND per datasheet to improve EMI immunity; not internally bonded |
Key Features
| Feature | Design Value |
|---|---|
| Internal 2.4V reference | 15 ppm/°C drift over full temperature range eliminates need for external precision reference in cost-sensitive designs |
| SCAN mode sequencer | Automatically cycles conversions across CH0/CH1 with user-defined delays; removes polling overhead from host MCU |
| Burnout current sources | Integrated 10 µA sources detect open/short conditions in RTD or strain gauge wiring - no external components required |
| 24-bit offset/gain calibration | User-accessible registers enable one-time system-level calibration to compensate for sensor and front-end amplifier errors |
| Ultra-low shutdown current | <2.4 µA full shutdown current extends battery life in portable instrumentation and wireless sensor nodes |
| Temperature sensor | On-die diode provides ±5°C accuracy for ambient or die temperature monitoring without external IC |
Applications
| Pressure Transmitter Calibration | Industrial Flow Meter Interface |
|---|---|
Use Scenario: High-accuracy 4–20 mA pressure transmitter with HART modulation requires stable digitization of millivolt-level bridge outputs under wide temperature swings. IC Role / Device Role / Timing Role: MCP3562R-E/ST serves as primary ADC with programmable 16x gain and internal 2.4V reference, acquiring synchronized differential CH0/CH1 samples at 120 SPS for ratiometric correction. Use Value: 106.7 dB SINAD and 0.5 ppm/°C gain drift ensure <0.05% total error over -40°C to +125°C, meeting IEC 61298-2 Class 0.05 requirements. | Use Scenario: Electromagnetic flow meter processes bipolar AC-excited electrode signals requiring true differential input handling and high CMRR. IC Role / Device Role / Timing Role: MCP3562R-E/ST digitizes dual electrode pairs (CH0+, CH0−, CH1+, CH1−) in differential mode with 120 dBc SFDR to reject common-mode switching noise from excitation circuitry. Use Value: 126 dB DC CMRR and -122 dB AC CMRR suppress induced noise from 50/60 Hz mains and PWM inverters, enabling sub-0.1% flow accuracy. |
| Portable Gas Analyzer Front-End | Factory Automation Load Cell Monitor |
Use Scenario: Battery-powered NDIR gas analyzer uses thermopile detectors with µV-level outputs and strict power budget constraints. IC Role / Device Role / Timing Role: MCP3562R-E/ST operates in low-power SCAN mode at 12.5 SPS with 64x gain and internal oscillator, delivering 90 nVRMS noise while consuming only 0.93 mA total. Use Value: 23.3-bit effective resolution at 12.5 SPS enables detection of <1 ppm gas concentration shifts without external amplification or cooling. | Use Scenario: PLC-based weigh station monitors four load cells across two independent channels with real-time diagnostics for wire breakage. IC Role / Device Role / Timing Role: MCP3562R-E/ST configures CH0/CH1 for simultaneous differential measurements while enabling burnout current sources and IRQ-driven fault reporting. Use Value: Integrated open/short detection reduces BOM count by eliminating discrete comparators and saves PCB area in space-constrained DIN-rail modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-resolution delta-sigma ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS1263IPW | 32-bit resolution, 40 ksps max, integrated PGA with 1–128 gain, no internal voltage reference | Requires external 2.5V reference; higher resolution but lower max data rate than MCP3562R-E/ST | Choose ADS1263IPW when absolute highest resolution is mandatory and external reference is acceptable |
| MCP3564R-E/ST | Quad-channel version (CH0–CH3), identical architecture, same pinout in TSSOP-20 package | Direct drop-in replacement if system requires four analog inputs instead of two; no layout change needed | Choose MCP3564R-E/ST when expanding channel count without redesigning analog front-end or PCB layout |
Compared with ADS1263IPW and MCP3564R-E/ST, the MCP3562R-E/ST uniquely balances dual-channel flexibility, integrated 2.4V reference, and ultra-low shutdown current (<2.4 µA), making it optimal for compact, self-contained industrial sensors where board space and power are constrained.
Availability
MCP3562R-E/ST is available at Aetrix Electronics and suitable for precision sensor transducers, factory automation controllers, and portable instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MCP3562R-E/ST includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microchip Technology Inc. is a leading provider of microcontrollers, analog devices, and Flash-IP solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The MCP356xR family was designed specifically for high-accuracy, low-power industrial and scientific measurement systems - integrating reference, oscillator, temperature sensing, and security to minimize external components and accelerate time-to-market.
FAQ
What is the maximum achievable data rate for MCP3562R-E/ST?
The MCP3562R-E/ST supports a programmable data rate up to 153.6 ksps. This maximum rate is achieved at OSR = 32 and gain = 1x, with MCLK = 4.9152 MHz. At higher gains or oversampling ratios, the effective output rate decreases proportionally - for example, at 64x gain and OSR = 98304, the rate drops to 12.5 SPS. The MCP3562R-E/ST datasheet Table 5-6 defines all valid combinations.
Does MCP3562R-E/ST support both differential and single-ended input configurations?
Yes, the MCP3562R-E/ST supports two differential input channels (CH0, CH1) or four single-ended channels. In single-ended mode, REFIN- must be connected to AGND, and each channel uses CHx as the positive input with AGND as the reference. The device's analog multiplexer and internal configuration registers allow runtime switching between modes without hardware changes.
How does the internal 2.4V voltage reference perform over temperature?
The MCP3562R-E/ST internal 2.4V reference exhibits a typical temperature coefficient of 15 ppm/°C over the full -40°C to +125°C range, with a maximum of 40 ppm/°C. Measured output noise is 14.3 µV RMS (chopper enabled), and settling time to 10 ppm is 12 ms with a 1 µF bypass capacitor. This stability eliminates the need for external references in many industrial applications.
Can MCP3562R-E/ST operate with separate analog and digital supply voltages?
Yes, the MCP3562R-E/ST has independent AVDD (2.7–3.6V) and DVDD (1.8–3.6V) supplies, allowing mixed-voltage system integration. AVDD powers the analog modulator, reference, and input buffer; DVDD powers the digital core and SPI interface. Separating these domains - with proper AGND/DGND partitioning - is essential to maintain the specified 106.7 dB SINAD performance.
What security features does MCP3562R-E/ST provide for firmware integrity?
The MCP3562R-E/ST includes CRC-16 protection on all SPI commands and configuration writes, register map locking via an 8-bit secure key, and IRQ-triggered CRC validation of critical settings. These features prevent unauthorized reconfiguration and ensure communication integrity in safety-critical or certified industrial environments - a capability not found in legacy delta-sigma ADCs like the ADS124S08.
MCP3562R-E/ST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 24
- Sampling Rate (Per Second):
- 153.6k
- Number of Inputs:
- 2, 4
- Input Type:
- Differential, Single Ended
- Data Interface:
- SPI
- Configuration:
- MUX-ADC
- Ratio - S/H:ADC:
- 0:2
- Number of A/D Converters:
- 2
- Architecture:
- Sigma-Delta
- Reference Type:
- -
- Voltage - Supply, Analog:
- 2.7V ~ 3.6V
- Voltage - Supply, Digital:
- 1.8V ~ 3.7V
- Features:
- Internal Oscillator, Temperature Sensor
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 20-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MCP3562R-E/ST FAQ
1.How can I place an order for MCP3562R-E/ST through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP3562R-E/ST on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MCP3562R-E/ST reliable?
The price and inventory of MCP3562R-E/ST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCP3562R-E/ST is usually 5 days.
3.What payment methods are accepted for MCP3562R-E/ST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP3562R-E/ST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP3562R-E/ST?
MCP3562R-E/ST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP3562R-E/ST order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MCP3562R-E/ST?
For technical support, including MCP3562R-E/ST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP3562R-E/ST requirements.
6.How does Aetrix verify that MCP3562R-E/ST is sourced from the original manufacturer or authorized distributors?
All MCP3562R-E/ST products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MCP3562R-E/ST meets industry standards.
7.What is the process for return or replacement of MCP3562R-E/ST?
All MCP3562R-E/ST units undergo pre-shipment inspection (PSI). If there is an issue with MCP3562R-E/ST, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MCP3562R-E/ST part is unused and in its original packaging.
Return procedure for MCP3562R-E/ST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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