Analog Devices Inc./Maxim Integrated MAX165BCPN

Overview

MAX165BCPN from Maxim Integrated is a 12-bit successive-approximation analog-to-digital converter (SAR ADC) with internal track/hold, reference, and clock. It operates from a single +5V supply, achieves 100ksps sampling rate, and features ±1/2 LSB integral nonlinearity. It is used in data acquisition systems requiring high accuracy and low power.

For engineers reviewing the MAX165BCPN datasheet, MAX165BCPN pinout, MAX165BCPN application, or MAX165BCPN equivalent, key selection considerations include its 12-bit resolution, single-supply operation, on-chip reference, serial interface timing, and industrial temperature range support.

Technical Context

The MAX165BCPN implements a SAR architecture with internal sample-and-hold, eliminating external hold circuitry. It integrates a precision 2.5V bandgap reference and requires no external clock components for basic operation.

Its serial interface uses a 3-wire SPI-compatible protocol with CS, DIN, and DOUT signals, supporting both MSB-first and LSB-first data formats. Conversion is initiated by a falling edge on CS, and data is read out synchronously with SCLK.

Key Specifications

Pinout & Package

MAX165BCPN is housed in a 20-pin plastic DIP (dual in-line package) with 0.3-inch body width and through-hole mounting.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 12-bit SAR ADC applications.

Compared with AD7890ARZ-10 and TLC2543CN, the MAX165BCPN offers the only combination of internal track/hold, internal reference, and true single-supply operation among these three - reducing component count and layout complexity in compact industrial and portable systems.

Availability

MAX165BCPN is available at Aetrix Electronics and suitable for industrial process monitoring, portable instrumentation, and medical sensor interfaces requiring stable component supply and long-term sourcing assurance.

Supply support for MAX165BCPN 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, automotive, and communications applications.

The MAX165BCPN belongs to Maxim's legacy high-accuracy data acquisition IC family, engineered for applications demanding low-noise, single-supply 12-bit conversion without external support components.

FAQ

What is the maximum sampling rate of the MAX165BCPN?

The MAX165BCPN achieves a maximum sampling rate of 100 kSPS under specified operating conditions. This rate is sustained across its full industrial temperature range (–40°C to +85°C) and is supported by its internal clock and track/hold circuitry. The MAX165BCPN maintains this performance without requiring external timing components or high-speed support circuitry.

Does the MAX165BCPN require an external reference voltage?

No, the MAX165BCPN includes an internal 2.5V bandgap reference that can be used directly for conversion. Pin 6 (REF) may be configured as reference output or accept an external reference, but external reference is optional. The MAX165BCPN delivers specified accuracy using its internal reference across the full temperature range.

What package type is used for the MAX165BCPN?

The MAX165BCPN is packaged in a 20-pin plastic DIP (dual in-line package) with 0.3-inch body width and through-hole leads. This package supports manual prototyping and legacy industrial PCB assembly. The MAX165BCPN's pinout and thermal characteristics are fully defined for this DIP variant per Maxim's original datasheet.

Is the MAX165BCPN compatible with SPI serial interfaces?

Yes, the MAX165BCPN uses a 3-wire SPI-compatible serial interface with CS, DIN, and DOUT signals. It supports standard SPI timing and both MSB-first and LSB-first data formats. The MAX165BCPN does not require mode configuration - it operates natively with common microcontroller SPI peripherals without additional level-shifting or protocol translation.

What is the integral nonlinearity (INL) specification for the MAX165BCPN?

The MAX165BCPN has a guaranteed integral nonlinearity of ±1/2 LSB over its full operating temperature range. This specification ensures monotonic behavior and minimal code-width error, critical for closed-loop control and precision measurement. The MAX165BCPN meets this INL spec using its internal reference and track/hold without trimming or calibration.