Analog Devices Inc./Maxim Integrated MAX1064BCEG+

Overview

MAX1064BCEG+ from Maxim Integrated is a 10-bit successive-approximation analog-to-digital converter (ADC) with integrated +2.5V reference, byte-wide parallel (8+2) interface, and software-configurable 4-channel single-ended or 2-channel pseudo-differential input. It operates from a single +5V analog supply and supports digital logic levels from +2.7V to +5.5V via VLOGIC. Designed for low-power data acquisition, it delivers 400ksps sampling at 2.5mA and enters <2µA shutdown mode between conversions.

For engineers reviewing the MAX1064BCEG+ datasheet, MAX1064BCEG+ pinout, MAX1064BCEG+ application, or MAX1064BCEG+ equivalent, this page provides verified technical context, real-world design meanings of key specs, validated pin functions, confirmed alternative parts with documented differences, and application-specific implementation guidance - all grounded in the official MAX1064 datasheet Rev 0 (04/03).

Technical Context

The MAX1064BCEG+ implements a charge-redistribution SAR architecture with an internal track-and-hold stage offering 6MHz full-power bandwidth and 350kHz full-linear bandwidth. Its control logic accepts an 8-bit configuration byte defining acquisition mode (internal/external), unipolar/bipolar range, single-ended/pseudo-differential operation, channel selection (CH0–CH3), and power-down state.

Conversion timing is clock-dependent: 13 cycles per conversion, supporting external clocks from 100kHz to 7.6MHz or internal clock mode (fixed ~3.6µs conversion time). The HBEN pin enables high-byte (D8/D9) or low-byte (D0–D7) multiplexing on the shared data bus, enabling compatibility with 8-bit microprocessor buses without external latching.

Key Specifications

Pinout & Package

MAX1064BCEG+ is housed in a 24-pin QSOP package (5.3mm × 7.6mm, 0.635mm pitch), RoHS-compliant and moisture-sensitive level 3. Pin 1 marked with dot; pin numbering follows standard counter-clockwise orientation from top-left corner.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 10-bit parallel-output ADC applications.

Compared with MAX1064BCEG+, MAX1063BCEG+ offers identical feature set at lower voltage but forfeits VLOGIC/VDD decoupling, while ADS7822U trades resolution, speed, integration, and interface flexibility for compact size and SPI compatibility - making MAX1064BCEG+ optimal for 5V-based, high-fidelity, µP-direct parallel interfacing.

Availability

MAX1064BCEG+ is available at Aetrix Electronics and suitable for industrial process monitoring, portable medical devices, energy metering subsystems, and touch screen controller interfaces requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for MAX1064BCEG+ 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 MAX1064BCEG+ belongs to Maxim's precision data-acquisition ADC family, designed specifically for low-power, space-constrained systems needing integrated reference, flexible input configuration, and direct µP parallel interfacing without external glue logic.

FAQ

What is the operating temperature range for MAX1064BCEG+?

The MAX1064BCEG+ is specified for commercial temperature operation from 0°C to +70°C, as indicated by the 'C' grade suffix in its ordering code. This range is validated across all electrical parameters including INL, DNL, reference accuracy, and timing characteristics per the official datasheet Rev 0.

Does MAX1064BCEG+ require an external clock to operate?

No, MAX1064BCEG+ supports both internal and external clock modes. When bits D7=1 and D6=0 in the control byte, the device uses its internal oscillator (~7.6MHz), and the CLK pin must be tied to VDD or GND. External clock mode (D7=D6=1) accepts 100kHz–7.6MHz TTL/CMOS inputs - eliminating clock-source dependency in many embedded designs.

How does the HBEN pin affect data readout on MAX1064BCEG+?

The HBEN pin on MAX1064BCEG+ controls multiplexing of the 10-bit result onto the 8-bit data bus: when HBEN=1, D0/D8 and D1/D9 carry the two most significant bits (MSBs); when HBEN=0, D0–D7 carry the eight least significant bits (LSBs). This enables seamless interface with 8-bit microprocessors without external latches or bus expanders.

Can MAX1064BCEG+ interface directly with a 3.3V microprocessor?

Yes, MAX1064BCEG+ supports direct interfacing with 3.3V µPs via its VLOGIC pin, which accepts +2.7V to +5.5V. When VLOGIC = 3.3V, the D0–D7 outputs swing between 0V and 3.3V, and input thresholds (VIH/VIL) are scaled accordingly - enabling robust communication without level-shifting circuitry.

What is the minimum acquisition time required before conversion starts on MAX1064BCEG+?

The minimum acquisition time (tACQ) for MAX1064BCEG+ is 3.2µs in internal acquisition mode and 4µs in external acquisition mode, as specified in the Electrical Characteristics table. This time ensures the internal track-and-hold capacitor fully settles to within 1/2 LSB of final value - critical for achieving ±0.5 LSB INL performance across temperature.