Analog Devices Inc./Maxim Integrated MAX1030BEEG+T

Overview

MAX1030BEEG+T from Maxim Integrated is a 10-bit, 300ksps serial analog-to-digital converter with integrated temperature sensor (±0.7°C accuracy at +25°C), 16-entry FIFO, internal 4.096V reference, and true differential track-and-hold. It supports 16 single-ended or 8 differential input channels in unipolar/bipolar modes and operates from a single +5V supply. Used in industrial data-acquisition systems requiring multichannel voltage monitoring and on-chip thermal supervision.

For engineers reviewing the MAX1030BEEG+T datasheet, MAX1030BEEG+T pinout, MAX1030BEEG+T application, or MAX1030BEEG+T equivalent, this page delivers verified technical context, real-world design meaning for key specs, package-validated pin functions, and two confirmed alternative parts with documented functional and application-level differences.

Technical Context

The MAX1030BEEG+T implements a fully differential successive-approximation register (SAR) ADC architecture with on-chip track-and-hold, supporting both single-ended and true differential inputs. Its internal oscillator enables autonomous conversion timing in clock modes 00, 01, and 10, while external SCLK up to 10MHz drives high-speed serial communication via SPI/QSPI/MICROWIRE-compatible 3-wire interface.

It integrates a dedicated temperature-sensing path using the internal reference, delivering 1/8°C resolution in two's complement format. The 16-deep FIFO buffers conversion results-including temperature readings-enabling burst acquisition without serial bus contention, and internal averaging reduces noise across up to 64 samples per result.

Key Specifications

Pinout & Package

MAX1030BEEG+T is housed in a 28-pin 5mm × 5mm TQFN package with exposed pad (EP), RoHS-compliant and lead-free. The exposed pad must be soldered to a GND plane for thermal and electrical performance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar multichannel, temperature-integrated ADC applications.

Compared with MAX1030BEEG+T, ADS8320IDR trades integration for resolution and AD7923BRUZ trades embedded features for raw speed - neither offers the combined FIFO, temperature sensor, and internal reference that reduce system-level component count and firmware complexity in compact industrial DAQ designs.

Availability

MAX1030BEEG+T is available at Aetrix Electronics and suitable for industrial process monitoring, patient vital sign acquisition, automated test equipment, and energy metering subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX1030BEEG+T 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 industrial, medical, and communications applications.

The MAX1026/MAX1028/MAX1030 product line targets space-constrained, low-power data-acquisition systems needing integrated signal conditioning, multichannel scanning, and on-chip thermal awareness - eliminating discrete reference, multiplexer, and temperature sensor components.

FAQ

What is the maximum sampling rate of the MAX1030BEEG+T, and under what conditions is it achieved?

The MAX1030BEEG+T achieves a maximum sampling rate of 300ksps when using an external clock source (CKSEL = 11) with SCLK up to 10MHz. This rate assumes unipolar single-ended mode, no internal averaging, and no temperature measurement in the conversion sequence. Internal clock modes limit throughput to ~200ksps due to oscillator tolerance and acquisition timing overhead. The MAX1030BEEG+T datasheet specifies 300ksps as the guaranteed maximum under defined electrical conditions including VDD = +5V ±5%, fSCLK = 4.8MHz, and VREF = 4.096V.

Does the MAX1030BEEG+T require an external reference, or does it have an internal one?

The MAX1030BEEG+T includes a factory-trimmed internal 4.096V reference with ±20ppm/°C temperature coefficient and 200μVRMS noise, eliminating the need for an external reference in most applications. It also supports external differential references applied between REF+ and REF− pins. Critically, the internal reference is mandatory for temperature sensor operation - the MAX1030BEEG+T always uses its internal reference for thermal measurements, regardless of voltage conversion configuration.

How many analog input channels does the MAX1030BEEG+T support, and how are they configured?

The MAX1030BEEG+T supports 16 single-ended analog inputs (AIN0–AIN15) or 8 true differential input pairs (e.g., AIN0/AIN1, AIN2/AIN3, ..., AIN14/AIN15). Configuration is controlled via the setup and unipolar/bipolar registers: writing to DIFFSEL bits selects differential mode, while UCH/BCH bits enable individual channels. AIN12–AIN15 are exclusive to the MAX1030 family - unavailable on MAX1026/MAX1028 - and CNVST/AIN15 pin functionality is mutually exclusive: when used as CNVST, AIN15 is disabled.

What is the purpose and behavior of the FIFO in the MAX1030BEEG+T?

The MAX1030BEEG+T contains a 16-entry first-in/first-out (FIFO) buffer that stores ADC conversion results and temperature readings. It allows the device to perform multiple conversions autonomously - such as scanning all 16 channels or executing internal averaging - without host processor intervention. When the FIFO fills, new results overwrite the oldest entries. Data is read out MSB-first on DOUT after each CS falling edge. The FIFO enables deterministic data capture in systems with variable interrupt latency, making the MAX1030BEEG+T suitable for real-time industrial control loops.

Can the MAX1030BEEG+T measure temperature, and what is its accuracy?

Yes, the MAX1030BEEG+T integrates a calibrated on-die temperature sensor with ±0.7°C accuracy at +25°C and ±1.2°C over the full –40°C to +85°C operating range. Temperature results are delivered in two's complement format with 1/8°C resolution (e.g., 0x0100 = +32°C). The sensor uses the internal 4.096V reference exclusively and requires no external components. Measurement error excludes self-heating effects and is specified under fast automated test conditions per the MAX1030BEEG+T datasheet.