Analog Devices Inc./Maxim Integrated MAX132EVKIT-DIP

Overview

MAX132EVKIT-DIP from Maxim Integrated is an evaluation kit for the MAX132 - a CMOS, ±18-bit serial-output multi-slope analog-to-digital converter with 2µV/LSB resolution, ±512mV input range, and 50Hz/60Hz line rejection. It supports up to 100 conversions/sec in high-speed mode and operates at 60µA typical supply current (1µA in sleep). Designed for precision DC measurement in battery-powered instrumentation and industrial data acquisition.

For engineers reviewing the MAX132EVKIT-DIP datasheet, MAX132EVKIT-DIP pinout, MAX132EVKIT-DIP application, or MAX132EVKIT-DIP equivalent, this page delivers verified technical context, validated board-level specifications, supported interface configurations (4-wire SPI-compatible serial), confirmed power requirements (±5V dual supplies), and real-world use cases including weigh scales, panel meters, and remote sensor nodes.

Technical Context

The MAX132EVKIT-DIP implements the full analog front-end and digital interface of the MAX132 ADC, including precision integrator (602kΩ R_INT, 4.7nF C_INT), reference circuitry (545mV/655mV selectable), 32.768kHz crystal oscillator, and buffered analog inputs (IN HI/IN LO). It supports both 50Hz and 60Hz integration modes via software-configurable register bit D6.

Board-level design includes on-board MAX872 2.5V reference, resistor divider network for REF+ generation, RC input filtering, and four user-programmable digital outputs (P0–P3) routed to test points. The kit interfaces directly to host microcontrollers via standard 4-wire serial protocol (CS, SCLK, DIN, DOUT) with EOC handshake and twos-complement output coding.

Key Specifications

Availability

MAX132EVKIT-DIP is available at Aetrix Electronics and suitable for precision data loggers, battery-powered handheld instruments, and industrial process monitoring systems requiring stable component supply and rapid prototyping capability.

Supply support for MAX132EVKIT-DIP 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) is a semiconductor company specializing in high-precision analog, mixed-signal, and power management ICs for industrial, medical, and instrumentation applications.

The MAX132EVKIT-DIP belongs to Maxim's precision data-acquisition evaluation platform family, designed to accelerate validation of high-resolution ADCs in low-power, noise-sensitive measurement systems.

FAQ

What is the MAX132EVKIT-DIP used for?

The MAX132EVKIT-DIP is an evaluation kit for the MAX132 ±18-bit multi-slope ADC. It provides a complete, tested hardware platform-including precision integrator, reference circuitry, crystal oscillator, and serial interface-to validate performance in applications like weigh scales, panel meters, and battery-powered data loggers. Engineers use the MAX132EVKIT-DIP to verify signal chain accuracy, line rejection, and low-power operation before system integration.

Does the MAX132EVKIT-DIP include the MAX132 IC?

Yes, the MAX132EVKIT-DIP includes a fully assembled and tested MAX132 IC in a 24-pin narrow plastic DIP package. The board is preconfigured with all necessary passive components (602kΩ integrator resistor, 4.7nF integrator capacitor, 0.1µF reference capacitor, 15pF crystal load caps) and the MAX872 2.5V reference IC to support immediate evaluation of the MAX132's ±18-bit performance.

Can the MAX132EVKIT-DIP operate with single-supply voltage?

No - the MAX132EVKIT-DIP requires dual ±5V supplies to power the MAX132 IC, which internally needs symmetric rails for its integrator and reference circuitry. The board has dedicated V+ (+5V) and V− (−5V) terminals; operation with single-ended supplies or rail-to-rail configurations is not supported and will prevent proper conversion or damage the device.

How do I configure 50Hz vs. 60Hz line rejection on the MAX132EVKIT-DIP?

50Hz/60Hz rejection is configured via software by setting bit D6 in Command Input Register 0 of the MAX132. When D6 = 0, integration time is set to 545 clock cycles (60Hz mode); when D6 = 1, it is set to 655 cycles (50Hz mode). The MAX132EVKIT-DIP uses a 32.768kHz crystal, so no hardware changes are needed - only serial command writes to the MAX132 register via the DOUT/DIN interface.

Are the P0–P3 outputs on the MAX132EVKIT-DIP accessible for external control?

Yes - the MAX132EVKIT-DIP exposes the four user-programmable digital outputs (P0, P1, P2, P3) as labeled test points. These pins are driven directly by the MAX132's internal registers and can be used to control external devices such as analog multiplexers or programmable-gain amplifiers. Their states are set via serial writes to Command Input Register 1, and they remain latched until reprogrammed.