MAX11328ATJ+

Analog To Digital Converters (ADC) Overview

The MAX11328ATJ+ is a 12-bit, 16-channel successive approximation register (SAR) analog-to-digital converter (ADC) from Maxim Integrated. It operates with a supply voltage of 2.35V to 3.6V and consumes 5.4mW at 1Msps. Key electrical parameters include ±1 LSB INL/DNL, 70dB SINAD at 100kHz, and a full-linear bandwidth of 500kHz. The device features external access to multiplexer outputs (AOP/AON) and ADC inputs (AIP/AIN) for post-mux signal conditioning. It supports internal clocking with averaging and FIFO, or external clocking via SampleSet technology. The component is housed in a 32-pin, 5mm x 5mm TQFN package.

Analog To Digital Converters (ADC) Feature Summary

• 16-Channel Input: Supports single-ended, fully differential, or pseudo-differential configurations.
• Post-Mux Access: External pins for AOP, AON, AIP, and AIN allow external signal conditioning between the mux and ADC.
• SampleSet Technology: User-programmable channel sequencer reduces microcontroller overhead.
• Low Power: Consumes 5.4mW at 1Msps with 3V supplies; includes AutoShutdown mode.

Analog To Digital Converters (ADC) Applications

• High-Speed Data Acquisition Systems
• Industrial Control Systems
• Medical Instrumentation
• Battery-Powered Instruments

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix ATJ+ against the manufacturer's current ordering guide to confirm package type and RoHS compliance status. Ensure the source document matches the exact part number revision. Cross-reference thermal resistance values if high-density PCB mounting is planned.

Analog To Digital Converters (ADC) Selection Notes

Select this model for applications requiring 16 channels with independent configuration per channel. Use when external signal conditioning is necessary between the multiplexer and the ADC core. Verify that the required input range (unipolar/bipolar) and sampling rate (up to 1Msps) align with system constraints.

Analog To Digital Converters (ADC) Part Context

This component belongs to the MAX11321–MAX11328 family of high-speed SAR ADCs. The MAX11328 specifically provides 16 analog input channels, whereas variants like MAX11325 offer 8 channels and MAX11322 offers 4 channels within the same pin-compatible footprint and feature set.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible substitutes within the same family include MAX11325 (8-channel) and MAX11322 (4-channel). These may be used if fewer channels are required, but channel count must be verified against application needs.

Analog To Digital Converters (ADC) FAQ

What is the maximum serial clock frequency?

The external serial clock (SCLK) frequency can operate up to 16MHz.

How does SampleSet technology benefit multichannel applications?

It allows user-defined channel sequencing with a maximum length of 256, reducing microcontroller communication overhead by automating the sampling sequence.

Can the ADC inputs be configured as differential pairs?

Yes, the 16 channels can be configured as 8 fully differential pairs, 16 single-ended inputs, or 16 pseudo-differential inputs relative to a common input.