Analog Devices Inc./Maxim Integrated MAX1313ECM+

Overview

MAX1313ECM+ from Maxim Integrated is a 12-bit, 4-channel simultaneous-sampling analog-to-digital converter (ADC) with ±10V input range and ±16.5V fault-tolerant inputs. It achieves 0.9μs two-channel conversion time, 456ksps per-channel throughput at 8-channel operation, and features internal 2.5V reference, 20MHz T/H bandwidth, and 48-pin LQFP package. It is designed for high-precision industrial power monitoring and motor control systems requiring synchronized multi-channel acquisition.

For engineers reviewing the MAX1313ECM+ datasheet, MAX1313ECM+ pinout, MAX1313ECM+ application, or MAX1313ECM+ equivalent, this page delivers verified specifications including bipolar ±10V input range, channel-to-channel T/H match of 100ps, ±1 LSB INL, 71dB SINAD at 500kHz, and parallel 12-bit interface timing - all critical for deterministic real-time control and waveform analysis designs.

Technical Context

The MAX1313ECM+ implements independent track-and-hold (T/H) circuitry per channel to enable true simultaneous sampling across all four analog inputs. Its architecture supports both internal clock (15MHz) and external clock (up to 20MHz), with conversion timing tightly coupled to clock edges and CONVST assertion.

It operates in bipolar mode with differential reference structure (REF+, COM, REF−) generating a 2.5V reference span centered at 2.6V COM voltage. Input channels are fault-tolerant to ±16.5V, and analog/digital supplies are decoupled (AVDD = +4.75V to +5.25V, DVDD = +2.7V to +5.25V), supporting mixed-voltage system integration.

Key Specifications

Pinout & Package

MAX1313ECM+ is housed in a 48-pin 7mm × 7mm LQFP package (lead(Pb)-free/RoHS-compliant), with dedicated analog/digital ground and supply pins, separate reference and midscale voltage terminals, and a 12-bit bidirectional parallel bus (D0–D11).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar simultaneous-sampling ADC applications.

Compared with ADS8588SIPM and AD7606C-25, the MAX1313ECM+ offers optimal balance of 12-bit precision, 456ksps/channel throughput, parallel interface latency, and integrated ±2.5V reference - making it uniquely suitable for cost-sensitive, high-dynamics industrial motor and power control where timing determinism is non-negotiable.

Availability

MAX1313ECM+ is available at Aetrix Electronics and suitable for multiphase motor control, power-grid synchronization, and vibration analysis applications requiring stable component supply, long-term industrial lifecycle support, and RoHS-compliant sourcing.

Supply support for MAX1313ECM+ 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 high-performance analog and mixed-signal ICs for industrial, automotive, and communications markets, emphasizing signal integrity, power efficiency, and ruggedness.

The MAX1304–MAX1314 family was engineered specifically for simultaneous multi-channel data acquisition in harsh industrial environments - delivering fault tolerance, tight channel matching, and deterministic timing without external support components.

FAQ

What is the maximum fault voltage the MAX1313ECM+ analog inputs can withstand?

The MAX1313ECM+ analog inputs (CH0–CH3) are rated for ±16.5V fault tolerance relative to AGND. This specification applies under steady-state and transient overvoltage conditions, enabling direct interfacing with industrial sensors and motor drive circuits without external clamping diodes or series resistors - provided AVDD and AGND remain within absolute maximum ratings.

Does the MAX1313ECM+ support external reference operation, and what voltage range is acceptable?

Yes, the MAX1313ECM+ supports external reference operation via the REF and REFMS pins. An externally driven reference voltage between +2.0V and +3.0V is accepted, with input resistance of 5kΩ and capacitance of 15pF. When using an external reference, REF and REFMS must be tied together and driven from a low-impedance source to maintain specified INL and gain error performance.

How does the MAX1313ECM+ achieve simultaneous sampling across its four channels?

The MAX1313ECM+ integrates independent track-and-hold (T/H) circuitry for each of its four analog inputs. Upon assertion of the CONVST signal, all four T/H amplifiers freeze their input voltages simultaneously. Conversion proceeds sequentially, but the sampled values originate from the same instant - ensuring phase-coherent acquisition critical for vector math and power calculations in the MAX1313ECM+ application.

What is the power consumption of the MAX1313ECM+ in full operation and shutdown modes?

In full operation (all four channels active, AVDD = +5V, DVDD = +3V), the MAX1313ECM+ draws 54–60mA from AVDD and 1.3–2.6mA from DVDD. In shutdown mode (SHDN = DVDD), analog supply current drops to ≤10µA and digital supply current to ≤1µA - enabling ultra-low-power standby states while preserving configuration registers and allowing fast wake-up (<1µs) for event-triggered sampling.

Can the MAX1313ECM+ operate with different analog and digital supply voltages, and what are the valid ranges?

Yes, the MAX1313ECM+ supports independent analog and digital supplies. AVDD must be between +4.75V and +5.25V for proper analog section operation, while DVDD may range from +2.7V to +5.25V - allowing compatibility with 3.3V or 5V logic domains. AGND and DGND must be connected with ≤0.3V potential difference, and supply decoupling (0.1µF ceramic per supply pin) is mandatory for specified AC performance.