Analog Devices Inc./Maxim Integrated MAX1460CCM

Overview

The MAX1460CCM from Maxim Integrated is a low-power, 16-bit smart analog-to-digital converter with integrated digital signal processor (DSP), 128-bit EEPROM, programmable-gain amplifier (PGA), coarse-offset DAC, and on-chip temperature sensor. It delivers digitally compensated 12-bit parallel digital output and ratiometric analog voltage via an on-board 12-bit DAC, enabling high-precision sensor signal conditioning for piezoresistive transducers operating from 0°C to +70°C in 48-pin TQFP packaging.

For engineers reviewing the MAX1460CCM datasheet, MAX1460CCM pinout, MAX1460CCM application, or MAX1460CCM equivalent, this page provides verified technical context, real-world calibration architecture details, confirmed pin functions including CS1/CS2 dual-chip-select and EOC latching, and validated alternatives for industrial pressure sensor and smart battery charge system design.

Technical Context

The MAX1460CCM implements a closed-loop digital compensation architecture: sensor signals are first conditioned by a 2-bit PGA (gain 43–96 V/V) and 3-bit coarse-offset DAC (±164% VDD range), then digitized by a 16-bit ADC with ±1200 nV/°C input-referred offset TC and 1700 nV_RMS input noise. The DSP executes a fixed-characteristic equation using coefficients stored in on-chip EEPROM to correct sensor offset, sensitivity, and their linear/quadratic temperature coefficients.

Calibration occurs in-system via a 5-wire serial test interface (XIN, TEST, RESET, SDIO, SDO) supporting batch programming; the device features three-state digital outputs for parallel transducer connection, and includes a rail-to-rail uncommitted op amp (±30 mV offset, 60 dB open-loop gain) for analog output filtering or 4–20 mA transmitter implementation.

Key Specifications

Pinout & Package

MAX1460CCM is housed in a 48-pin Thin Quad Flat Package (TQFP) with exposed pad, rated for 0°C to +70°C operation. Pin assignments are validated per Maxim's official datasheet Rev 1 (5/14).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar smart ADC applications.

Compared with AD7792BRUZ and ADS1220IPWR, the MAX1460CCM uniquely integrates DSP, EEPROM, and temperature sensor to deliver self-contained, factory-calibrated performance - eliminating host processing overhead and reducing total solution size for embedded sensor modules.

Availability

MAX1460CCM is available at Aetrix Electronics and suitable for industrial pressure sensors, smart battery charge systems, and weigh scale designs requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.

Supply support for MAX1460CCM 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-performance analog, mixed-signal, and power management ICs for industrial, medical, and communications applications.

The MAX1460CCM belongs to Maxim's Smart ADC product line, designed specifically to integrate sensor signal conditioning, digital compensation, and calibration storage into a single chip for piezoresistive and strain-gauge-based measurement systems.

FAQ

What is the operating temperature range of the MAX1460CCM?

The MAX1460CCM is specified for operation from 0°C to +70°C. This commercial-grade temperature range aligns with its intended use in handheld instruments, industrial transmitters, and smart battery systems where ambient conditions remain within standard environmental limits. The on-chip temperature sensor is calibrated across this exact range, ensuring accurate thermal compensation without extrapolation.

Does the MAX1460CCM require an external crystal or resonator?

Yes, the MAX1460CCM requires a 2MHz ceramic resonator (e.g., Murata CST200) connected between XOUT and XIN pins for normal operation. During test mode, XIN becomes a digital input driven by the test system at 2MHz, but the resonator remains connected and does not need removal - simplifying production test setup while maintaining oscillator stability in application circuits.

How is calibration performed on the MAX1460CCM?

Calibration of the MAX1460CCM is performed via its 5-wire serial test interface (XIN, TEST, RESET, SDIO, SDO). Using commands like 1 hex and 2 hex, the test system writes 16-bit calibration coefficients directly into DSP registers or stores them permanently in the internal 128-bit EEPROM. The process supports pretest, compensation computation, and final verification without removing the device from the test socket.

Can the MAX1460CCM drive a 4–20 mA current loop directly?

No, the MAX1460CCM does not drive a 4–20 mA loop directly, but it enables implementation via its OUT pin (ratiometric DAC bitstream) and uncommitted op amp (AMPOUT/AMP+/AMP−). When combined with external resistors and a transistor, the op amp configures as a 2-wire transmitter - leveraging the MAX1460CCM's built-in digital correction and ratiometric output to ensure loop accuracy independent of supply voltage variations.

What package type is used for the MAX1460CCM?

The MAX1460CCM uses a 48-pin Thin Quad Flat Package (TQFP) with exposed thermal pad. This package supports surface-mount assembly, provides adequate thermal dissipation for its 400–700 µA supply current, and enables compact layout in space-constrained applications such as handheld instrumentation and modular sensor nodes.