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Microchip Technology MCP3021A3T-E/OT — Discrete Semiconductors

MCP3021A3T-E/OT ADC, 10-bit SAR, I²C, SOT-23-5, Active

MPNMCP3021A3T-E/OT
End of Life

Microchip Technology MCP3021A3T-E/OT, 10-bit SAR ADC, I²C interface, SOT-23-5, 22.3 kS/s, single supply 2.7–5.5 V, -40°C to 125°C.

$1.42Ref. price · indicative, final on quote
PackagingSC-74A, SOT-753
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MCP3021A3T-E/OT specifications
ParameterValue
Input typeSingle Ended
MountingSurface Mount
Reference typeSupply
Voltage - supply, analog2.7V ~ 5.5V
Voltage - supply, digital2.7V ~ 5.5V
I/O channels1
Data interfaceI²C
Operating temperature-40°C ~ 125°C
PackageTape & Reel (TR); Cut Tape (CT)
ArchitectureSAR
ConfigurationS/H-ADC
Number of bits10
CaseSC-74A, SOT-753
Ratio - s (H:ADC)1:1
Number of a (D converters)1
Sampling rate (Per second)22.3k

Product details

Single supply, wide temp range, small footprint

The MCP3021A3T-E/OT: The -40°C to 125°C operating range covers automotive under-hood and industrial enclosures without derating. SOT-23-5 package (also listed as SC-74A) fits a 0.95 mm pitch footprint.

Supplied through independent distribution channels.

Frequently asked questions

What is the closest functional alternative to MCP3021A3T-E/OT?

The MCP3564T-E/NC is a different architecture (24-bit sigma-delta, SPI, differential inputs, up to 153.6 kS/s) — not a pin-compatible drop-in. The MCP3021A3T-E/OT is a 10-bit SAR with I²C and a single-ended input; choose based on resolution and interface requirements.