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MCP3301-BI/MS
Microchip Technology
IC ADC 13BIT SAR 8MSOP
5154 Pcs New Original In Stock
13 Bit Analog to Digital Converter 1 Input 1 SAR 8-MSOP
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MCP3301-BI/MS
Product Overview
1333496
DiGi Electronics Part Number
MCP3301-BI/MS-DGManufacturer
Microchip Technology
MCP3301-BI/MS
Description
IC ADC 13BIT SAR 8MSOPInventory
5154 Pcs New Original In Stock
13 Bit Analog to Digital Converter 1 Input 1 SAR 8-MSOP
Quantity
Minimum 1
Minimum 1
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MCP3301-BI/MS Technical Specifications
Category
Data Acquisition, Analog to Digital Converters (ADC)
Packaging
Tube
Series
-
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
Package / Case
8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package
8-MSOP
Mounting Type
Surface Mount
Base Product Number
MCP3301
Datasheet & Documents
Manuals
Development Tools Catalog
HTML Datasheet
MCP3301-BI/MS-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
MCP3301-BI/MS-NDR
MCP3301BI/MS
Standard Package
100
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
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de desembre 02, 2025
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de desembre 02, 2025
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Frequently Asked Questions (FAQ)
Can MCP3301-BI/MS be used in noise-sensitive differential measurement applications, and what design practices minimize signal integrity risks?
Yes, the MCP3301-BI/MS is well-suited for noise-sensitive differential applications due to its 13-bit SAR architecture and differential input structure, which rejects common-mode noise. However, to ensure signal integrity, use a clean, well-regulated 5V analog supply with proper decoupling (0.1µF ceramic capacitor close to the AVDD pin). Route differential signal traces symmetrically with impedance matching and minimize trace length to reduce EMI pickup. Avoid sharing ground planes between digital and analog circuits; instead, use a single-point star grounding technique. Additionally, ensure the external reference voltage is stable and low-noise, as the MCP3301-BI/MS relies on an external reference for accuracy—consider using precision references like the LT1236 or REF5050 to avoid gain drift and linearity errors.
How does the MCP3301-BI/MS compare to the ADS7881IDBVR in terms of resolution, power, and drop-in compatibility for high-precision sensor interfaces?
The MCP3301-BI/MS offers 13-bit resolution compared to the 12-bit resolution of the ADS7881IDBVR, providing finer resolution for high-precision sensor measurements like strain gauges or thermocouples. Both operate at up to 100kSPS with SPI interfaces, but the MCP3301-BI/MS requires an external voltage reference, offering design flexibility, whereas the ADS7881IDBVR has an internal reference that simplifies layout but limits customization. They share similar 8-MSOP packages and 5V supply requirements, but they are not pin-to-pin compatible—pay attention to channel select and mode control pin differences. Designers replacing the ADS7881IDBVR with MCP3301-BI/MS must rework the reference and SPI timing configuration. Use the MCP3301-BI/MS when higher resolution and reference design freedom are critical.
What are the key operating temperature and long-term reliability considerations for MCP3301-BI/MS in industrial environments?
The MCP3301-BI/MS is rated for -40°C to 85°C operation, making it suitable for most industrial environments, but long-term reliability depends on adherence to thermal and electrical stress limits. Avoid sustained operation near the upper temperature limit by ensuring adequate PCB heat dissipation and avoiding placement near high-power components. Since the device is MSL1 (unlimited floor life) and ROHS3/REACH compliant, moisture and lead-free assembly risks are minimal. Monitor mechanical stress on the 8-MSOP package during thermal cycling—use compliant mounting methods and avoid rigid connectors. For mission-critical systems, perform ALT (Accelerated Life Testing) focusing on supply voltage transients and reference stability degradation over time. The absence of integrated reference means external component aging must also be factored into system-level reliability planning.
Is MCP3301-BI/MS suitable for battery-powered applications given its 5V supply requirement, and what low-power design trade-offs exist?
The MCP3301-BI/MS requires a 5V supply for both analog and digital sections, making it less ideal for direct battery-powered designs using single-cell Li-ion (3.7V) or AA batteries. However, it can be used with a boost converter (e.g., TPS61200) to generate 5V efficiently. Note that while the device has no explicit low-power sleep mode, its SAR architecture inherently consumes less power during idle periods if sampling is intermittent. Power consumption scales linearly with sampling rate—reduce throughput to 10kSPS or lower when possible to cut average current. This creates a trade-off between resolution, speed, and battery life. For low-power applications, evaluate alternatives like the MCP33151 (which supports 2.7–5.5V and has sleep modes), but retain MCP3301-BI/MS only when 13-bit resolution and strict 5V system compatibility are required.
What are the risks of using an unbuffered external reference with MCP3301-BI/MS, and how can they be mitigated in high-impedance source scenarios?
Since the MCP3301-BI/MS uses an external reference without an internal buffer, variations in reference impedance or transient current draw during SAR conversion can introduce gain errors and nonlinearity, especially with high-impedance sources like resistive sensor bridges. The reference input draws current pulses during sampling, so high source impedance causes voltage droop, leading to measurement inaccuracies. To mitigate this, always buffer the reference voltage using a low-output-impedance op-amp like the OP1177 or REF50xx series references that include built-in buffers. Additionally, place a 1–10µF low-ESR tantalum or ceramic capacitor at the reference input pin close to the MCP3301-BI/MS to act as a local charge reservoir. Avoid using resistive dividers directly as references; if needed, buffer them. These steps will maintain the 13-bit performance and ensure stability across temperature and supply variations.
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MCP3301-BI/MS CAD Models
Microchip Technology MCP3301-BI/MS PCB symbols & footprints
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