Analog Devices Inc./Maxim Integrated MAX1062BCUB+T

Overview

MAX1062BCUB+T from Maxim Integrated is a 14-bit successive-approximation analog-to-digital converter (ADC) with ±2 LSB integral nonlinearity, 200ksps maximum sampling rate, 4MHz input bandwidth, and 10µA shutdown current. It operates from a single +5V analog supply while supporting 2.7V–5.25V digital logic levels, making it suitable for portable data-acquisition systems requiring high resolution and ultra-low power in space-constrained designs.

For engineers reviewing the MAX1062BCUB+T datasheet, MAX1062BCUB+T pinout, MAX1062BCUB+T application, or MAX1062BCUB+T equivalent, this page delivers verified technical context, real-world timing behavior, validated package mapping, confirmed SPI/QSPI/MICROWIRE interface compatibility, and precise DC/dynamic performance boundaries under AVDD = DVDD = 5V conditions.

Technical Context

The MAX1062BCUB+T implements a SAR architecture with internal track-and-hold, enabling unipolar 14-bit conversions over 0 to VREF (up to 5.25V). Its acquisition time is fixed at 1.1µs, and conversion is initiated by CS falling edge, synchronized to SCLK up to 4.8MHz with 24-clock-per-conversion timing.

Digital interface operation requires CPOL = 0 and CPHA = 0 for SPI/QSPI/MICROWIRE compatibility. Output format is MSB-first serial stream: eight leading zeros followed by 14 data bits and two sub-bits (S1, S0), all clocked on SCLK falling edges with DOUT tri-stated when CS is high.

Key Specifications

Pinout & Package

MAX1062BCUB+T is housed in a 10-pin µMAX® package (3mm × 3mm, 0.5mm pitch), thermally enhanced with exposed paddle. Pin 3 and Pin 9 are both AGND and must be connected together at a star ground point.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 14-bit SAR ADC applications.

Compared with ADS8325IPW and AD7940BRMZ, MAX1062BCUB+T uniquely balances 200ksps throughput, 0.1µA shutdown, and triple-protocol serial compatibility in a 3mm × 3mm package-enabling compact, battery-efficient designs without sacrificing interface flexibility or DC accuracy.

Availability

MAX1062BCUB+T is available at Aetrix Electronics and suitable for motor control, industrial I/O modules, and portable equipment requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for production programs.

Supply support for MAX1062BCUB+T 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, automotive, and communications markets.

The MAX1062 series was designed specifically for low-power, high-resolution data acquisition in space- and energy-constrained systems-emphasizing ease of integration, minimal external components, and guaranteed performance across commercial temperature ranges.

FAQ

What is the maximum sampling rate supported by the MAX1062BCUB+T?

The MAX1062BCUB+T supports a maximum sampling rate of 200ksps, achieved when using an SCLK frequency of 4.8MHz with 24 clock cycles per conversion. At this rate, typical analog supply current is 2.75mA (AVDD = DVDD = 5V), and dynamic performance remains specified per datasheet: SINAD ≥81dB and SFDR ≥87dB at 1kHz input.

Does the MAX1062BCUB+T require an external reference voltage?

Yes, the MAX1062BCUB+T requires an external reference voltage applied to the REF pin. The reference must be between 3.8V and AVDD (max +5.25V), with recommended value 4.096V for optimal 250µV/LSB scaling. REF must be bypassed to AGND with a 4.7µF low-ESR capacitor; failure to do so degrades INL and noise performance.

How does the MAX1062BCUB+T enter and exit shutdown mode?

The MAX1062BCUB+T enters shutdown mode when CS is driven high, reducing total supply current to 0.1µA typical. It exits shutdown and begins conversion on the falling edge of CS. After reading the 24-bit result (eight zeros + 14 data bits + two sub-bits), CS must be held high ≥50ns before the next falling edge to ensure reliable reset and acquisition.

Is the MAX1062BCUB+T compatible with standard SPI microcontrollers?

Yes, the MAX1062BCUB+T is fully compatible with standard SPI interfaces when configured with CPOL = 0 and CPHA = 0. It outputs MSB-first serial data on DOUT, transitioning on SCLK falling edges, and accepts clock frequencies from 100kHz to 4.8MHz. Three consecutive 8-bit reads retrieve the full 14-bit result plus sub-bits.

What is the meaning of the 'B' grade in MAX1062BCUB+T?

The 'B' in MAX1062BCUB+T denotes the INL grade: ±2 LSB over the 0°C to +70°C temperature range. This is distinct from the 'A' grade (±1 LSB) and 'C' grade (±3 LSB), all sharing identical pinout, package (10-pin µMAX), and electrical timing. The 'B' grade offers optimal balance of precision and cost for commercial-grade data-acquisition applications.