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Microchip Technology MCP37D31-80E/TE
- Part No.:
- MCP37D31-80E/TE
- Manufacturer:
- Microchip Technology
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 121-TFBGA
- Datasheet:
-
MCP37D31-80E/TE.pdf
- Description:
- IC ADC 16BIT PIPELINED 121TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:295
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Product details
Overview
MCP37D31-80E/TE from Microchip Technology is a 16-bit, 80 Msps pipelined analog-to-digital converter (ADC) with integrated 8-channel MUX, digital signal post-processing (DSPP), and AEC-Q100 Grade 1 qualification. It delivers 73.9 dBFS SNR at 15 MHz input, supports up to 2.975 VP-P full-scale differential input range, and operates across -40°C to +125°C in TFBGA-121 packaging. It serves high-speed data acquisition in automotive radar, ultrasound imaging, and microwave radio systems.
For engineers reviewing the MCP37D31-80E/TE datasheet, MCP37D31-80E/TE pinout, MCP37D31-80E/TE application, or MCP37D31-80E/TE equivalent, this page provides verified specifications, validated pin functions, confirmed automotive-grade thermal performance, and real-world DSPP use cases - all directly traceable to Microchip's DS20006382A datasheet.
Technical Context
The MCP37D31-80E/TE employs a pipelined ADC architecture with built-in harmonic distortion correction (HDC), DAC noise cancellation (DNC), and dynamic element matching (DEM) for consistent linearity across temperature. Its programmable PLL and DLL enable precise clock synchronization and duty-cycle correction for multi-device AutoSync operation.
Digital signal post-processing includes decimation filters (up to 512×), fractional delay recovery (FDR) for channel alignment, per-channel gain/phase/offset adjustment, digital down-conversion (DDC), and continuous wave (CW) beamforming - all configurable via SPI and active only in octal-channel mode. Output latency is fixed at 28 clock cycles without DSPP; increases with enabled features.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit (with 18-bit output option using DM1/DM2 pins) |
| Sample Rate | 80 Msps single-channel; scalable to 10 Msps per channel in octal mode |
| SNR @ 15 MHz | 73.9 dBFS typical - enables high-fidelity RF and ultrasound digitization |
| SFDR @ 15 MHz | 93 dBc typical - suppresses spurious tones in communication receivers |
| Power Dissipation | 257 mW with CMOS I/O at 80 Msps - optimized for portable and automotive thermal budgets |
| Input Bandwidth | 500 MHz - supports direct sampling of L-band radar and microwave IF signals |
| Supply Voltages | 1.2V and 1.8V dual-rail for analog/digital sections - reduces noise coupling and enables low-voltage system integration |
| Operating Temperature | -40°C to +125°C (AEC-Q100 Grade 1) - qualified for under-hood automotive and industrial edge sensing |
Pinout & Package
Package: TFBGA-121, 8 mm × 8 mm × 1.08 mm, 0.65 mm ball pitch, lead-free (Sn/Ag 1.8%), embedded decoupling capacitors on REF0/1 and VBG pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 SDIO | SPI data I/O | Full-duplex serial interface for register configuration and calibration control |
| B1 SCLK / B2 CS | SPI clock & chip select | Enables daisy-chained multi-device programming and AutoSync initialization |
| L8/L9 CLK+/CLK- | Differential sampling clock input | Accepts 80–250 MHz LVPECL-compatible signals; internal duty-cycle correction improves timing margin |
| D1–L2 Q0–Q15, DM1/DM2 | Parallel digital outputs | Supports CMOS, DDR LVDS, or serialized LVDS (octal mode); DM1/DM2 provide LSBs only in 18-bit mode (MCP37D31-80E/TE exclusive) |
| K5 CAL | Calibration status flag | Asserts high when power-up calibration completes - critical for deterministic startup in safety-critical systems |
| K7 SLAVE / L6 SYNC | AutoSync master/slave control | Enables hardware-synchronized sampling across multiple ADCs without external timing controllers |
Key Features
| Feature | Design Value |
|---|---|
| Configurable 8-channel MUX | Supports sequential multi-channel sampling or single-channel high-rate acquisition - eliminates external analog switches in phased-array sensors |
| Built-in DSPP engine | Includes decimation, DDC, FDR, and CW beamforming - replaces FPGA-based preprocessing in ultrasound and radar front ends |
| Per-channel digital trimming | Independent gain, phase, and offset adjustment per input - enables real-time calibration in multi-element transducer arrays |
| Embedded reference & decoupling | On-package REF0/REF1 and VBG decoupling capacitors reduce PCB area and improve PSRR over discrete solutions |
| Power-saving modes | 79 mW standby and 22 mW shutdown - extends battery life in portable test equipment and lidar modules |
Applications
| Radar Signal Digitization | Ultrasound Beamforming |
|---|---|
|
Use Scenario: Direct sampling of 10–20 MHz IF signals from FMCW automotive radar receivers. IC Role / Device Role / Timing Role: High-speed ADC with 500 MHz input bandwidth and 93 dBc SFDR, synchronized across multiple units via AutoSync for coherent MIMO processing. Use Value: Eliminates intermediate frequency downconversion stages and enables digital beam steering with sub-nanosecond inter-channel alignment via FDR. |
Use Scenario: Digitizing echo signals from 128-element phased-array transducers in portable ultrasound scanners. IC Role / Device Role / Timing Role: 16-bit, 80 Msps ADC with per-channel gain/phase trim and CW beamforming support in octal-channel mode. Use Value: Reduces FPGA resource usage by offloading real-time delay-and-sum operations while maintaining >73 dBFS SNR for tissue contrast resolution. |
| High-Speed Test Equipment | Industrial Microwave Radio |
|
Use Scenario: Real-time waveform capture in portable bit-error-rate testers and spectrum analyzers. IC Role / Device Role / Timing Role: Low-latency (28-cycle) ADC with optional output randomizer and decimation filters for noise floor reduction. Use Value: Enables 90+ dBFS effective resolution with 512× decimation - sufficient for validating 16-bit DAC linearity without external averaging. |
Use Scenario: IF digitization in point-to-point 6–40 GHz microwave backhaul radios operating in harsh outdoor environments. IC Role / Device Role / Timing Role: AEC-Q100 Grade 1 ADC with -40°C to +125°C operation and embedded bandgap/REF regulation. Use Value: Guarantees parametric stability across temperature swings without recalibration - critical for field-deployed telecom infrastructure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP37D21-80E/TE | 14-bit resolution, identical pinout and DSPP feature set; lower SNR (71.5 dBFS) and SFDR (90 dBc) | Targeted at cost-sensitive test equipment where 14-bit ENOB suffices | Select when system-level SNR budget allows 2.4 dB margin and 18-bit output is unnecessary |
| AD9234BCPZ-80 | 12-bit, 80 Msps, JESD204B serial output; no integrated MUX or DSPP; requires external clock conditioner | Suitable for space-constrained designs needing serial interface and lower power (195 mW) | Choose when FPGA-based post-processing is already in place and board layout favors serial connectivity over parallel LVDS |
Compared with MCP37D21-80E/TE and AD9234BCPZ-80, the MCP37D31-80E/TE uniquely combines 16-bit precision, on-chip 8-channel MUX, and full DSPP capability in a single AEC-Q100-qualified package - reducing BOM count and enabling deterministic latency in safety-critical radar and medical imaging systems.
Availability
MCP37D31-80E/TE is available at Aetrix Electronics and suitable for automotive radar, ultrasound imaging, and high-speed test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MCP37D31-80E/TE 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 is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, and mixed-signal ICs, with strong focus on automotive, industrial, and communications markets.
The MCP37Dx1-80 family was designed specifically for high-performance, multi-channel data acquisition in thermally demanding environments - delivering integrated signal conditioning, digital post-processing, and AEC-Q100 reliability without external support circuitry.
FAQ
What is the maximum effective sample rate per channel when using all eight inputs on the MCP37D31-80E/TE?
The MCP37D31-80E/TE maintains a fixed 80 Msps ADC core rate. When all eight analog input channels are enabled in sequential sampling mode, the effective sample rate per channel is 80 Msps ÷ 8 = 10 Msps. This is confirmed in the device description (DS20006382A-page 3) and applies regardless of output format (CMOS, LVDS, or serialized LVDS). The MCP37D31-80E/TE retains full 16-bit resolution and specified SNR/SFDR at this rate.
Does the MCP37D31-80E/TE support 18-bit output mode, and how is it implemented?
Yes, the MCP37D31-80E/TE supports 18-bit output mode exclusively - a feature not available on the MCP37D21-80E/TE. In this mode, the standard Q0–Q15 pins deliver bits 17–2, while DM1/DM2 pins output the two least-significant bits (bit 1 and bit 0). This is documented in DS20006382A-page 6 (Note 5) and Table 1-2, and requires configuration via register settings to enable high-order decimation filtering.
How does the AutoSync feature work on the MCP37D31-80E/TE, and what pins are involved?
The MCP37D31-80E/TE AutoSync feature uses K7 (SLAVE) and L6 (SYNC) pins to synchronize multiple devices to a common clock source. When SLAVE = high, the device operates as slave and SYNC becomes an input; when SLAVE = low, it acts as master and SYNC becomes an output. This hardware-controlled scheme ensures deterministic inter-device sampling alignment without software intervention - critical for coherent beamforming in radar and ultrasound systems.
What power supply configurations are required for proper operation of the MCP37D31-80E/TE?
The MCP37D31-80E/TE requires four independent supply rails: AVDD12 and AVDD18 (1.2V and 1.8V for analog section), plus DVDD12 and DVDD18 (1.2V and 1.8V for digital section). Per DS20006382A-page 13, AVDD12 must be within 1.14–1.26 V and AVDD18 within 1.71–1.89 V. All supplies must be independently decoupled; embedded capacitors on REF0/REF1/VBG pins eliminate need for external bypassing on those nets.
Is the MCP37D31-80E/TE pin-compatible with other members of the MCP37Dx1-80 family?
Yes - the MCP37D31-80E/TE is pin-to-pin compatible with MCP37D21-80E/TE and MCP37D11-80E/TE, as explicitly stated in the "MCP37Dx1-80 Family Comparison" table (DS20006382A-page 2, Note 1). This includes identical TFBGA-121 footprint, ball assignment, and power/signal pin mapping - enabling drop-in resolution upgrades without PCB redesign.
MCP37D31-80E/TE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 121-TFBGA
- Packaging:
- Tray
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 80M
- Number of Inputs:
- 8
- Input Type:
- Differential
- Data Interface:
- LVDS - Parallel, SPI
- Configuration:
- MUX-S/H-MUX-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- Pipelined
- Reference Type:
- Internal
- Voltage - Supply, Analog:
- 1.2V ~ 1.8V
- Voltage - Supply, Digital:
- 1.2V ~ 1.8V
- Features:
- Digital Down-Converter, Decimation Filters
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 121-TFBGA (8x8)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MCP37D31-80E/TE FAQ
1.How can I place an order for MCP37D31-80E/TE through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP37D31-80E/TE 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 MCP37D31-80E/TE reliable?
The price and inventory of MCP37D31-80E/TE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCP37D31-80E/TE is usually 5 days.
3.What payment methods are accepted for MCP37D31-80E/TE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP37D31-80E/TE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP37D31-80E/TE?
MCP37D31-80E/TE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP37D31-80E/TE 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 MCP37D31-80E/TE?
For technical support, including MCP37D31-80E/TE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP37D31-80E/TE requirements.
6.How does Aetrix verify that MCP37D31-80E/TE is sourced from the original manufacturer or authorized distributors?
All MCP37D31-80E/TE 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 MCP37D31-80E/TE meets industry standards.
7.What is the process for return or replacement of MCP37D31-80E/TE?
All MCP37D31-80E/TE units undergo pre-shipment inspection (PSI). If there is an issue with MCP37D31-80E/TE, 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 MCP37D31-80E/TE part is unused and in its original packaging.
Return procedure for MCP37D31-80E/TE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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