Analog Devices Inc./Maxim Integrated MAX1026BCEE+

Overview

MAX1026BCEE+ from Maxim Integrated is a 10-bit, 300ksps serial analog-to-digital converter with integrated temperature sensor, internal 4.096V reference, and 16-entry FIFO. It features 8 single-ended or 4 true differential input channels, operates from a single +5V supply, and supports SPI/QSPI/MICROWIRE-compatible 3-wire interface - used in industrial data acquisition and system supervision where compact, low-power multichannel sampling is required.

For engineers reviewing the MAX1026BCEE+ datasheet, MAX1026BCEE+ pinout, MAX1026BCEE+ application, or MAX1026BCEE+ equivalent, this page delivers verified specifications, QSOP-16 package mapping, real-world use scenarios, and two validated alternative parts for thermal-aware voltage monitoring designs.

Technical Context

The MAX1026BCEE+ implements a fully differential successive-approximation register (SAR) ADC architecture with on-chip track-and-hold, supporting both unipolar and bipolar differential modes. Its internal oscillator enables autonomous scan mode operation without external timing control.

It integrates an on-die temperature sensor with ±0.7°C accuracy at +25°C and ±1.2°C over –40°C to +85°C, always referenced to its internal 4.096V bandgap reference. The 16-deep FIFO buffers conversion results and temperature readings independently, decoupling acquisition from serial readout.

Key Specifications

Pinout & Package

MAX1026BCEE+ is housed in a 16-pin QSOP (Quad Small Outline Package), 0.150-inch body width, RoHS-compliant and lead-free. Pin pitch is 0.025 inch (0.635 mm); package dimensions are 4.9 mm × 3.9 mm × 1.5 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX1026BCEE+, ADS7822U trades resolution and simplicity for missing thermal/FIFO functionality, while AD7490BRUZ adds speed and channels at the cost of power, size, and thermal integration - making MAX1026BCEE+ optimal for space-constrained, thermally aware embedded monitoring.

Availability

MAX1026BCEE+ is available at Aetrix Electronics and suitable for industrial process monitoring, medical patient monitoring, and embedded system supervision requiring stable component supply across long-lifecycle programs.

Supply support for MAX1026BCEE+ 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

Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.

The MAX1026BCEE+ belongs to Maxim's precision data acquisition product line, engineered specifically for compact, low-power, thermally aware multichannel voltage monitoring in resource-constrained embedded systems.

FAQ

What is the operating temperature range for the MAX1026BCEE+?

The MAX1026BCEE+ is specified for operation from 0°C to +70°C, as indicated by the 'B' grade suffix in its part number. This commercial-grade temperature range is validated across all electrical parameters including INL, DNL, reference stability, and temperature sensor accuracy. The device maintains ±1 LSB linearity and ±0.7°C thermal measurement accuracy within this range, making it suitable for indoor industrial and consumer-grade embedded applications where ambient conditions remain controlled.

Does the MAX1026BCEE+ require an external reference voltage?

No, the MAX1026BCEE+ does not require an external reference voltage because it integrates a precision 4.096V internal reference with ±20ppm/°C temperature coefficient. This reference powers both analog-to-digital conversion and the on-die temperature sensor. An external differential reference can be applied via REF+ and REF− pins if higher accuracy or custom scaling is needed, but doing so disables the internal reference and requires careful layout to avoid noise coupling - the internal reference remains the default and most commonly used configuration for the MAX1026BCEE+.

How many analog input channels does the MAX1026BCEE+ support?

The MAX1026BCEE+ supports 8 single-ended analog input channels (AIN0–AIN7) or 4 true differential input pairs (e.g., AIN0/AIN1, AIN2/AIN3, etc.). This channel count is fixed for the MAX1026 family and confirmed in the datasheet's ordering information and pin description tables. Unlike the MAX1028 (12 SE / 6 diff) or MAX1030 (16 SE / 8 diff), the MAX1026BCEE+ implements exactly eight dedicated analog input pins - with AIN6 and AIN7 sharing functions with REF− and CNVST respectively - enabling flexible configuration without channel expansion hardware.

What package type is used for the MAX1026BCEE+?

The MAX1026BCEE+ uses a 16-pin QSOP (Quad Small Outline Package) with 0.150-inch body width, RoHS-compliant and lead-free. The 'E' in the part number denotes the QSOP package, and the 'E' in the suffix 'BCEE+' confirms the commercial temperature grade and QSOP form factor. This package measures 4.9 mm × 3.9 mm × 1.5 mm and features gull-wing leads compatible with standard surface-mount reflow processes - widely adopted for space-efficient industrial PCBs where thermal performance and manufacturability are balanced.

Can the MAX1026BCEE+ perform simultaneous sampling across multiple channels?

No, the MAX1026BCEE+ does not support simultaneous sampling across multiple channels. It uses a single SAR ADC core with an analog multiplexer and track-and-hold circuit that sequentially samples configured inputs. While it offers scan mode for automated multi-channel acquisition and FIFO buffering to store results, each conversion is time-multiplexed - meaning AIN0 is sampled, converted, then AIN1, and so on. True simultaneous sampling would require multiple independent ADC cores, which the MAX1026BCEE+ does not implement; its architecture prioritizes low power and integration over parallel acquisition.