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Microchip Technology MCP3301T-BI/SN
- Part No.:
- MCP3301T-BI/SN
- Manufacturer:
- Microchip Technology
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MCP3301T-BI/SN.pdf
- Description:
- IC ADC 13BIT SAR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,083
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Product details
Overview
MCP3301T-BI/SN from Microchip Technology is a 13-bit differential-input successive approximation register (SAR) analog-to-digital converter (ADC) with SPI serial interface, ±1 LSB max INL (B-grade), 100 ksps sampling rate at 5V, and 50 nA standby current. It operates from 4.5V to 5.5V and targets precision remote sensor and battery-powered data acquisition systems.
For engineers reviewing the MCP3301T-BI/SN datasheet, MCP3301T-BI/SN pinout, MCP3301T-BI/SN application, or MCP3301T-BI/SN equivalent, this page delivers verified electrical specs, full-differential timing behavior, package-confirmed pin functions, and real-world transducer interface use cases - all aligned to DS21700E revision E.
Technical Context
The MCP3301T-BI/SN implements a true 13-bit SAR architecture with on-chip sample-and-hold, requiring exactly 13 clock cycles for conversion and 1.5 clock cycles for acquisition. Its binary two's complement output includes a sign bit indicating polarity of the differential input (IN+ vs. IN−).
It supports full-differential operation with common-mode rejection of 79 dB and power supply rejection of 74 dB, while reference voltage ranges from 0.4 V to VDD - enabling input-referred resolution from 98 µV (at 400 mV VREF) to 1.22 mV (at 5 V VREF).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 13-bit (12 data bits + sign bit); enables bipolar measurement from −4096 to +4095 codes |
| Sampling Rate | 100 ksps at 5V supply; defines maximum continuous acquisition throughput in time-critical sensing |
| INL (B-grade) | ±1 LSB max; guarantees monotonicity and ≤0.012% full-scale linearity error over −40°C to +85°C |
| Standby Current | 50 nA typical; allows multi-year operation in coin-cell–powered remote nodes |
| VREF Range | 0.4 V to VDD; sets LSB size from 98 µV to 1.22 mV, directly scaling dynamic range and noise floor |
| Common-Mode Rejection | 79 dB; suppresses shared-noise interference in noisy industrial sensor environments |
| Supply Voltage | 4.5 V to 5.5 V; ensures specified performance including DNL, THD, and SINAD |
Pinout & Package
The MCP3301T-BI/SN is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) with 150-mil body width and standard gull-wing leads - compatible with automated PCB assembly and IPC-7351B land patterns.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VREF | Reference Voltage Input | Sets full-scale span and LSB size; must be stable to avoid gain error; accepts 0.4 V to VDD |
| IN(+) | Positive Analog Input | One leg of fully differential pair; absolute range = VSS−0.3 V to VDD+0.3 V |
| IN(−) | Negative Analog Input | Second leg of fully differential pair; enables rejection of common-mode noise and offset |
| VSS | Analog Ground Reference | Return path for analog circuitry; best practice: tie to dedicated analog ground plane |
| CS/SHDN | Chip Select / Shutdown Control | Active-low SPI enable; high state forces 50 nA standby mode and terminates conversion |
| DOUT | SPI Serial Data Output | Three-state output; shifts out 13-bit two's complement code MSB-first on CLK falling edge |
| CLK | SPI Serial Clock Input | Drives both acquisition (1.5 cycles) and conversion (13 cycles); max 1.7 MHz at 5V |
| VDD | Power Supply | +4.5 V to +5.5 V digital/analog rail; requires 0.1 µF ceramic bypass capacitor near pin |
Key Features
| Feature | Design Value |
|---|---|
| Full Differential Inputs | Enables direct connection to bridge sensors and current shunts without external instrumentation amps |
| Low Standby Current | 50 nA typical allows wake-on-interrupt architectures in energy-constrained IoT endpoints |
| Bipolar Output Coding | Two's complement format simplifies signed arithmetic in microcontroller firmware without post-processing |
| Industrial Temp Range | Specified from −40°C to +85°C ensures reliability in uncontrolled outdoor or factory-floor deployments |
| MSOP/PDIP/SOIC Compatibility | Same pinout across 8-pin packages enables footprint reuse during prototyping and volume production |
Applications
| Remote Sensor Interface | Battery-Powered Data Logger |
|---|---|
Use Scenario: High-impedance thermistor or strain gauge deployed in field-mounted environmental monitor with 10-year battery life. IC Role / Device Role / Timing Role: ADC front-end performing single-shot or burst-mode conversions triggered by MCU timer or external interrupt. Use Value: 50 nA standby current extends battery life; full-differential inputs reject EMI-induced common-mode noise on long sensor cables. | Use Scenario: Portable soil moisture probe using coin-cell battery and low-power MCU, logging readings every 15 minutes. IC Role / Device Role / Timing Role: Precision analog digitizer acquiring conditioned sensor output only during active measurement windows. Use Value: ±1 LSB INL ensures consistent calibration across temperature; 100 ksps headroom supports oversampling for noise reduction. |
| Transducer Signal Conditioning | Portable Medical Instrumentation |
Use Scenario: Industrial pressure transducer with millivolt-level output feeding into signal chain with programmable gain amplifier. IC Role / Device Role / Timing Role: Final-stage digitizer accepting amplified differential signal; referenced to stable external VREF. Use Value: 79 dB CMRR rejects power-supply ripple and motor-drive noise; VREF flexibility allows matching to PGA output swing. | Use Scenario: Handheld pulse oximeter requiring accurate DC-coupled photodiode current measurement under varying ambient light. IC Role / Device Role / Timing Role: Low-noise, low-drift ADC capturing baseline-corrected analog front-end output in clinical-grade device. Use Value: 78 dB SINAD and 92 dB SFDR support clean spectral analysis; 13-bit resolution resolves sub-millivolt physiological signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 13-bit differential SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7816U | 16-bit resolution, 200 ksps, 5V-only supply, no internal reference; higher power (1.2 mA active) | Better resolution for lab-grade instruments; unsuitable for ultra-low-power battery designs | Select ADS7816U when resolution >13-bit and speed >100 ksps are required; verify layout for higher-speed digital noise immunity. |
| MCP33111D-10 | 10-bit, 1 Msps, SPI, 1.8–5.5V supply, 1.5 µA active current; lower resolution but faster and wider VDD range | Optimized for high-throughput industrial control loops rather than precision low-power sensing | Choose MCP33111D-10 for cost-sensitive, high-sample-rate applications where 10-bit accuracy suffices and supply voltage varies. |
Compared with ADS7816U and MCP33111D-10, the MCP3301T-BI/SN uniquely balances 13-bit precision, 50 nA standby, and full-differential input in a single SOIC-8 package - making it optimal for long-life, noise-immune sensor nodes where resolution and power are co-constrained.
Availability
MCP3301T-BI/SN is available at Aetrix Electronics and suitable for remote sensor interface, battery-powered data loggers, and transducer signal conditioning requiring stable component supply across extended production lifecycles.
Supply support for MCP3301T-BI/SN 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 U.S.-based semiconductor company specializing in microcontrollers, analog devices, and interface ICs for embedded control applications.
The MCP3301 product line delivers low-power, high-accuracy SAR ADCs optimized for battery-operated and remote industrial sensing - emphasizing differential input integrity, SPI simplicity, and guaranteed INL/DNL performance.
FAQ
What is the guaranteed INL specification for the MCP3301T-BI/SN?
The MCP3301T-BI/SN is a B-grade device with guaranteed ±1 LSB maximum integral nonlinearity over the full industrial temperature range (−40°C to +85°C) and 4.5V–5.5V supply. This is confirmed in DS21700E-page 2 Electrical Characteristics table under "INL" for MCP3301-B, and applies directly to the MCP3301T-BI/SN variant per Microchip's grade marking convention.
Does the MCP3301T-BI/SN support pseudo-differential operation?
Yes, the MCP3301T-BI/SN supports pseudo-differential operation by biasing the IN(−) input above VSS (e.g., at VREF/2), enabling bipolar output from a single-ended signal source. Figure 1-6 and Section 4.0 of DS21700E explicitly define this mode, and the device maintains ±1 LSB INL when used with appropriate biasing networks such as those shown in Figure 5-4.
What is the minimum clock frequency required during conversion for the MCP3301T-BI/SN?
The MCP3301T-BI/SN requires a minimum clock frequency of 85 kHz during the 13-cycle conversion phase (tCONV) to prevent charge bleed from the internal sample capacitor. This is specified in Section 5.2.1 "Maintaining Minimum Clock Speed" of DS21700E and is critical to maintaining ±1 LSB INL performance.
Can the MCP3301T-BI/SN operate from a 3.3V supply?
No - the MCP3301T-BI/SN is specified for 4.5V to 5.5V operation to guarantee all AC and DC parameters including INL, DNL, THD, and SINAD. While DC functionality may occur at 3.3V, DS21700E-page 4 explicitly states "performance is applicable from a 4.5V to 5.5V supply range", and the MCP3301T-BI/SN is not characterized or warranted below 4.5V.
Is the MCP3301T-BI/SN pin-compatible with other 8-pin Microchip ADCs like the MCP3201?
No - the MCP3301T-BI/SN has a unique pinout optimized for full-differential operation (e.g., dedicated VREF, IN+, IN−, CS/SHDN). The MCP3201 uses a different pin assignment (e.g., no separate VREF pin, different CS and DOUT placement) and is single-ended only. Pin compatibility is not claimed in DS21700E or Microchip's cross-reference documentation.
MCP3301T-BI/SN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 13
- Sampling Rate (Per Second):
- 100k
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- SPI
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 8-SOIC
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MCP3301T-BI/SN FAQ
1.How can I place an order for MCP3301T-BI/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP3301T-BI/SN 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 MCP3301T-BI/SN reliable?
The price and inventory of MCP3301T-BI/SN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCP3301T-BI/SN is usually 5 days.
3.What payment methods are accepted for MCP3301T-BI/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP3301T-BI/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP3301T-BI/SN?
MCP3301T-BI/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP3301T-BI/SN 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 MCP3301T-BI/SN?
For technical support, including MCP3301T-BI/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP3301T-BI/SN requirements.
6.How does Aetrix verify that MCP3301T-BI/SN is sourced from the original manufacturer or authorized distributors?
All MCP3301T-BI/SN 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 MCP3301T-BI/SN meets industry standards.
7.What is the process for return or replacement of MCP3301T-BI/SN?
All MCP3301T-BI/SN units undergo pre-shipment inspection (PSI). If there is an issue with MCP3301T-BI/SN, 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 MCP3301T-BI/SN part is unused and in its original packaging.
Return procedure for MCP3301T-BI/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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