Analog Devices Inc./Maxim Integrated MAX11167ETC+T

Overview

MAX11167ETC+T from Maxim Integrated is a 16-bit, 250ksps successive approximation register (SAR) analog-to-digital converter with true ±5V bipolar input range, integrated 4.096V reference, and internal reference buffer. It operates from a single 5V analog supply and 2.3V–5.25V digital supply, achieving 93.2dB SNR and −102.5dB THD at 10kHz for high-fidelity data acquisition in industrial and medical instrumentation.

For engineers reviewing the MAX11167ETC+T datasheet, MAX11167ETC+T pinout, MAX11167ETC+T application, or MAX11167ETC+T equivalent, this page delivers verified specifications, SPI-compatible interface timing, TDFN-12 package layout, and validated alternative options for precision measurement systems requiring no-missing-codes performance and low-power shutdown mode.

Technical Context

The MAX11167ETC+T implements a pseudo-differential sampling architecture with patented charge-pump input stage enabling direct high-impedance source interfacing without external op-amp buffering. Its internal track-and-hold achieves full-scale settling in ≤400ns with 6MHz full-power bandwidth and <50psRMS aperture jitter.

Reference configuration is controlled via SPI-accessible register supporting four modes: internal bandgap output on REFIO with buffered REF decoupling (Mode 0), external reference into REFIO with internal buffer (Mode 1), internal bandgap only on REFIO (Mode 2), or full shutdown of both reference source and buffer (Mode 3).

Key Specifications

Pinout & Package

MAX11167ETC+T is housed in a 3mm × 3mm, 12-pin TDFN package with exposed pad (EP) connected to AGNDS. Pin assignments are validated per Maxim's official datasheet Rev 4 (19-6445).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit SAR ADC applications.

Compared with MAX11167ETC+, MAX11169ETC+ offers double the throughput at cost of 57% higher active power, while ADS8860IDRCT trades bipolar input and integrated reference for raw speed and smaller footprint-making MAX11167ETC+ optimal for space-constrained, low-power, ±5V measurement systems demanding self-contained accuracy.

Availability

MAX11167ETC+T is available at Aetrix Electronics and suitable for data acquisition systems, industrial control systems, and medical instrumentation requiring stable component supply, long-term lifecycle support, and guaranteed no-missing-codes performance.

Supply support for MAX11167ETC+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 and mixed-signal ICs for demanding industrial, medical, and communications applications.

The MAX11167ETC+T belongs to Maxim's high-accuracy SAR ADC family targeting applications where integrated reference, true bipolar input, and small-footprint packaging are essential for compact, high-reliability measurement front-ends.

FAQ

What is the maximum sample rate supported by the MAX11167ETC+T?

The MAX11167ETC+T supports a maximum throughput rate of 250ksps with zero pipeline latency. This is achieved using an internally clocked SAR architecture that completes conversion in 2.7–3.0µs after CNVST rising edge, followed by 1µs acquisition time - enabling deterministic timing for real-time control loops without FIFO buffering.

Does the MAX11167ETC+T require an external reference voltage?

No, the MAX11167ETC+T includes a factory-trimmed 4.096V internal bandgap reference with ±6.7ppm/°C temperature coefficient and internal buffer. It operates in Reference Mode 0 by default, requiring only 0.1µF on REFIO and 10µF on REF for full 16-bit accuracy - eliminating external reference components unless system-level reference sharing is needed.

What package type and pin count does the MAX11167ETC+T use?

The MAX11167ETC+T uses a 3mm × 3mm, 12-pin TDFN package with exposed pad (EP). Pinout is fixed per Maxim's datasheet Rev 4: pins include dual reference I/O (REFIO/REF), pseudo-differential analog inputs (AIN+/AIN−), SPI interface (DIN/DOUT/SCLK/CNVST), dual supplies (VDD/OVDD), and dedicated analog ground sense (AGNDS).

How does the MAX11167ETC+T handle overvoltage conditions on its analog inputs?

The MAX11167ETC+T features integrated overvoltage clamps on AIN+ and AIN− that activate above ±(VDD + 0.3V), limiting fault current to ±20mA. To maintain accuracy, input voltage must stay within ±(VDD + 0.1V); external series resistors (e.g., 1.28kΩ for 7V fault limit) are recommended to constrain clamp current during transient events.

Can multiple MAX11167ETC+T devices be daisy-chained using SPI?

Yes, the MAX11167ETC+T supports daisy-chain configuration via its SPI-compatible serial interface. When CNVST falls with SCLK high, DOUT drives the next device's DIN, allowing synchronized sampling across multiple channels with single SCLK/CNVST control - reducing GPIO count and simplifying timing in multichannel DAQ systems.