Microchip Technology MCP3008T-E/SL

Overview

MCP3008T-E/SL from Microchip Technology is a 10-bit successive-approximation ADC with 8 single-ended or 4 pseudo-differential analog input channels, SPI serial interface (modes 0,0 and 1,1), on-chip sample-and-hold, and operation from 2.7V to 5.5V supply. It delivers up to 200 ksps at 5V and supports automotive-grade temperature range (–40°C to +125°C) in SOIC-16 package - used in sensor interface and battery-operated data acquisition systems.

For engineers reviewing the MCP3008T-E/SL datasheet, MCP3008T-E/SL pinout, MCP3008T-E/SL application, or MCP3008T-E/SL equivalent, key selection criteria include its 10-bit resolution with ±1 LSB INL/DNL, SPI timing compatibility, channel configuration flexibility, low standby current (5 nA), and AEC-Q100 qualification for automotive use.

Technical Context

The MCP3008T-E/SL implements a SAR architecture with internal 20 pF sample capacitor and 1.5-clock-cycle acquisition time. Conversion begins on the fourth rising SCLK edge after CS assertion and completes within 10 clock cycles, delivering MSB-first 10-bit output on DOUT's falling edges.

It supports programmable analog input modes: all 8 channels as single-ended (CH0–CH7), or four pseudo-differential pairs (CH0/CH1, CH2/CH3, CH4/CH5, CH6/CH7), where IN− is limited to ±100 mV relative to VSS and IN+ ranges from IN− to VREF + IN−.

Key Specifications

Pinout & Package

Package: 16-pin SOIC (Small Outline Integrated Circuit), 300 mil width, RoHS-compliant, AEC-Q100 qualified.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 10-bit SAR ADC applications.

Compared with ADS7822U and MCP3208-I/P, the MCP3008T-E/SL uniquely balances 10-bit precision, 8-channel flexibility, pseudo-differential noise rejection, and automotive-grade reliability - making it optimal for cost-sensitive, noise-immune embedded sensing where 12-bit isn't required and AEC-Q100 compliance is mandatory.

Availability

MCP3008T-E/SL is available at Aetrix Electronics and suitable for automotive cabin control, industrial process monitoring, and battery-powered environmental logging requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MCP3008T-E/SL 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 microcontroller, mixed-signal, analog, and Flash-IP solutions, serving automotive, industrial, consumer, and communications markets since 1989.

The MCP3008T-E/SL belongs to Microchip's precision analog product line, designed specifically for robust, low-power, multi-channel data acquisition in harsh environments - emphasizing AEC-Q100 compliance, SPI simplicity, and minimal external component count.

FAQ

What is the maximum SPI clock frequency supported by the MCP3008T-E/SL?

The MCP3008T-E/SL supports up to 3.6 MHz SCLK at VDD = 5V and 1.35 MHz at VDD = 2.7V. These limits ensure reliable sampling and conversion timing - exceeding them may cause invalid data or increased INL/DNL errors due to insufficient sample capacitor charging time. Always verify clock setup/hold times per Figure 1-1 in DS20001295E.

Does the MCP3008T-E/SL require external components for basic operation?

No, the MCP3008T-E/SL requires no external passive components for core functionality: its on-chip sample-and-hold capacitor (20 pF), reference input buffer, and digital logic operate autonomously. Only decoupling capacitors (0.1 µF ceramic near VDD/AGND) and proper grounding are recommended - no external op-amps, filters, or voltage references are mandatory unless system-level accuracy or noise targets demand them.

How does pseudo-differential mode work on the MCP3008T-E/SL?

In pseudo-differential mode, the MCP3008T-E/SL uses adjacent channel pairs (e.g., CH0/CH1) as IN+ and IN−, measuring the difference between them. IN− must stay within ±100 mV of VSS, while IN+ can range from IN− to VREF + IN−. This rejects common-mode noise present on both lines - critical for noisy automotive or industrial environments - and is configured via the SGL/DIFF bit and channel address in the SPI command.

Is the MCP3008T-E/SL pin-compatible with other devices in the MCP300x family?

The MCP3008T-E/SL is pin-compatible with the MCP3008-I/P and MCP3008-E/SL in the 16-pin SOIC package - all share identical pinout, electrical characteristics, and timing. However, it is not pin-compatible with the 14-pin MCP3004 variants (which have only 4 channels) or TSSOP packages due to differing pin counts and thermal pad configurations.

What is the meaning of the 'T' in MCP3008T-E/SL?

The 'T' in MCP3008T-E/SL denotes tape-and-reel packaging - indicating the part is supplied in industry-standard 2,500-unit reels for automated SMT assembly. The 'E/SL' suffix specifies the 16-pin SOIC package (300 mil width) with lead-free (Pb-free) finish and RoHS compliance. This variant is functionally identical to the tube-packaged MCP3008-E/SL but optimized for high-volume manufacturing.