Analog Devices Inc./Maxim Integrated MAX1062CCUB

Overview

The MAX1062CCUB from Maxim Integrated is a 14-bit, single-supply +5V successive-approximation analog-to-digital converter (ADC) with 200ksps maximum sampling rate, ±3 LSB integral nonlinearity (INL), 10µA shutdown current, and SPI/QSPI/MICROWIRE-compatible serial interface - designed for precision data acquisition in space-constrained, battery-powered systems such as portable instrumentation and industrial I/O modules.

For engineers reviewing the MAX1062CCUB datasheet, MAX1062CCUB pinout, MAX1062CCUB application, or MAX1062CCUB equivalent, this page delivers verified technical context, real-world timing and power behavior, package-specific layout guidance, and validated alternative options - all grounded in the official MAX1062 datasheet Rev 1 (5/09).

Technical Context

The MAX1062CCUB implements a SAR architecture with internal track-and-hold (T/H), 4MHz small-signal input bandwidth, and unipolar serial output format (eight leading zeros + 14 data bits + two sub-bits). Its conversion is initiated by CS falling edge and clocked by SCLK up to 4.8MHz, requiring exactly 24 clock cycles per 200ksps conversion.

Power management uses AutoShutdown™: CS high forces shutdown (≤10µA total supply current), while CS low enables operation with dynamic current scaling - 2.75mA at 200ksps, 140µA at 10ksps, and 14µA at 1ksps - all with separate AVDD (4.75–5.25V) and DVDD (2.7–5.25V) supplies enabling direct interfacing to mixed-voltage logic.

Key Specifications

Pinout & Package

MAX1062CCUB is housed in a 10-pin µMAX® package (3mm × 3mm, 0.5mm pitch), optimized for compact PCB layouts and thermal performance in high-density designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADS8325IPW and AD7942BRMZ, the MAX1062CCUB uniquely combines 200ksps speed, integrated T/H, 10µA shutdown, and dual-supply flexibility - making it optimal for compact, battery-aware systems needing rapid wake-up and minimal external components.

Availability

MAX1062CCUB is available at Aetrix Electronics and suitable for industrial process control, portable instrumentation, and thermocouple-based sensing applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for MAX1062CCUB 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 MAX1062CCUB belongs to Maxim's precision data-acquisition ADC family, engineered for low-power, high-resolution digitization in space- and energy-constrained environments - particularly where fast wake-up, small footprint, and flexible voltage interfacing are critical.

FAQ

What is the maximum sampling rate and corresponding power consumption of the MAX1062CCUB?

The MAX1062CCUB achieves a maximum sampling rate of 200ksps, at which it consumes typically 2.75mA total supply current (1.4mA AVDD + 1.35mA DVDD) when AVDD = DVDD = 5V. This value is confirmed in the Electrical Characteristics table under "Analog Supply Current" and "Digital Supply Current" at 200ksps conditions. Power scales linearly with sample rate: 140µA at 10ksps and ≤10µA in shutdown mode. The MAX1062CCUB datasheet specifies these values across the full 0°C to +70°C operating range.

How does the MAX1062CCUB handle reference voltage and what are the key requirements?

The MAX1062CCUB requires an external reference voltage applied to the REF pin, with a valid range of 3.8V to AVDD (i.e., up to 5.25V). It demands a low-output-impedance source (<10Ω) capable of delivering 100µA DC load current during conversion. A 4.7µF bypass capacitor to AGND is mandatory; a parallel 0.1µF ceramic capacitor is recommended if the main capacitor lacks low ESR. Noise on REF directly degrades INL and SNR, so buffering with a low-noise op amp is advised for 14-bit accuracy. These requirements are explicitly stated in the Applications Information section of the MAX1062CCUB datasheet.

What is the function of the CS pin on the MAX1062CCUB and how does it affect power state?

The CS (chip select) pin on the MAX1062CCUB serves dual functions: it initiates conversions and controls power mode. A falling edge on CS starts acquisition and places the device in active mode; holding CS low enables continuous conversions. Driving CS high forces the MAX1062CCUB into AutoShutdown™ mode, reducing total supply current to ≤10µA and placing DOUT in high-impedance state. This behavior is guaranteed across the full temperature range and is documented in both the Functional Description and Absolute Maximum Ratings sections of the MAX1062CCUB datasheet.

Does the MAX1062CCUB include an internal track-and-hold circuit, and what is its acquisition time?

Yes, the MAX1062CCUB integrates a track-and-hold (T/H) circuit essential for accurate sampling of time-varying analog signals. Its specified acquisition time (tACQ) is 1.1µs - the maximum time required for the internal sampling capacitor to settle to 14-bit accuracy after CS falling edge. This value assumes source impedance ≤1kΩ; higher impedances increase tACQ per the formula tACQ = 11(RS + 800Ω) × 35pF. The T/H enables direct connection to low-impedance sensors and simplifies front-end design versus ADCs requiring external hold amplifiers. This is detailed in the Detailed Description and Timing Characteristics sections of the MAX1062CCUB datasheet.

What are the digital interface compatibility and timing requirements for the MAX1062CCUB?

The MAX1062CCUB supports SPI, QSPI, and MICROWIRE protocols with CPOL = 0 and CPHA = 0. It requires exactly 24 SCLK falling edges per conversion to output eight leading zeros, 14 data bits (MSB first), and two sub-bits (S1, S0). SCLK frequency ranges from 100kHz to 4.8MHz, with minimum high/low times of 65ns. Setup/hold timing (e.g., tCSS = 100ns, tCSH = 0ns) and DOUT validity (tDO = 50–100ns) are strictly defined in the Timing Characteristics table. These parameters ensure reliable communication with standard microcontroller SPI peripherals without custom firmware workarounds - as verified in Figures 10c and 11b of the MAX1062CCUB datasheet.