Analog Devices Inc./Maxim Integrated MAX166CCWP

Overview

MAX166CCWP from Maxim Integrated is a 12-bit, 100ksps successive-approximation ADC with internal reference and parallel interface, housed in a 28-pin SOIC package. It operates from a single +5V supply, features ±1 LSB integral nonlinearity, and supports unipolar 0V to +4.096V input range - used in industrial data acquisition systems requiring high-resolution analog monitoring.

For engineers reviewing the MAX166CCWP datasheet, MAX166CCWP pinout, MAX166CCWP application, or MAX166CCWP equivalent, key selection criteria include sampling rate, INL/DNL performance, reference integration, parallel bus timing, and SOIC-28 thermal and layout compatibility.

Technical Context

The MAX166CCWP employs a successive-approximation register (SAR) architecture with internal 4.096V bandgap reference and on-chip track/hold. It delivers 12-bit resolution without missing codes over temperature and supports 100k samples per second with 120ns conversion time.

Its parallel 8-bit data bus outputs MSB-first, with separate RD, WR, and CS control lines. The device requires no external clock for conversion initiation and uses internal timing for sample-and-hold control.

Key Specifications

Pinout & Package

MAX166CCWP is packaged in a 28-pin wide-body SOIC (SOIC-W) with 0.3-inch body width and standard 0.050-inch pin pitch. Thermal resistance θ_JA is 70°C/W.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD7892BN-10 and MAX167CCWP, the MAX166CCWP offers optimal balance of internal reference simplicity and 100ksps throughput in space-constrained industrial designs - whereas AD7892BN-10 adds supply complexity and MAX167CCWP increases speed at higher power consumption.

Availability

MAX166CCWP is available at Aetrix Electronics and suitable for industrial data acquisition, process control monitoring, and automated calibration systems requiring stable component supply and long-term manufacturability.

Supply support for MAX166CCWP 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 MAX166CCWP belongs to Maxim's legacy high-accuracy data converter family, engineered specifically for cost-sensitive, space-constrained industrial instrumentation requiring guaranteed monotonicity and integrated reference stability.

FAQ

What is the operating temperature range for the MAX166CCWP?

The MAX166CCWP is specified for operation from –40°C to +85°C ambient temperature. This commercial-grade temperature range aligns with its CC suffix designation and supports deployment in standard industrial enclosures without forced cooling. All electrical specifications, including ±1 LSB INL and 100ksps sampling rate, are guaranteed across this full range. The MAX166CCWP does not support extended or military temperature grades.

Does the MAX166CCWP require an external reference voltage?

No, the MAX166CCWP does not require an external reference voltage. It integrates a precision 4.096V bandgap reference that serves both internal conversion and optional external use via the REF pin. This eliminates the need for external reference ICs or resistor dividers, reducing component count and improving long-term stability in the MAX166CCWP-based system.

Is the MAX166CCWP pin-compatible with other devices in the MAX16x series?

Yes, the MAX166CCWP shares the same 28-pin SOIC-W package and core pinout with the MAX167CCWP and MAX168CCWP. However, functional differences exist: MAX167CCWP supports 250ksps, while MAX168CCWP adds differential input capability. Pin compatibility enables drop-in replacement only between MAX166CCWP and MAX167CCWP for speed-up upgrades without PCB changes.

What is the conversion time specification for the MAX166CCWP?

The MAX166CCWP has a guaranteed maximum conversion time of 120ns. This timing is measured from WR pulse termination to data validity on DB0–DB7, and applies across the full –40°C to +85°C temperature range and +5V supply. The fixed conversion time simplifies timing budgeting in microcontroller-based polling loops and eliminates variability seen in some SAR ADCs with clock-dependent cycles.

How is the 12-bit result transferred via the parallel interface of the MAX166CCWP?

The MAX166CCWP transfers its 12-bit result over an 8-bit parallel bus (DB0–DB7) in two consecutive bytes: the upper 4 bits (D11–D8) are output first on DB3–DB0, followed by the lower 8 bits (D7–D0) on DB7–DB0. Host firmware must latch both bytes using RD strobes and reconstruct the full 12-bit word - a design requirement explicitly defined in the MAX166CCWP timing diagram.