Analog Devices Inc./Maxim Integrated MAX1063BCEG+

Overview

MAX1063BCEG+ from Maxim Integrated is a 10-bit, 250ksps successive-approximation ADC with integrated +2.5V reference, byte-wide parallel (8+2) interface, and software-configurable 4-channel single-ended / 2-channel pseudo-differential analog input multiplexer. It operates from a single +3V analog supply and supports digital logic levels from +1.8V to +3.6V via dedicated VLOGIC pin, enabling direct interfacing with low-voltage microcontrollers in portable data-acquisition systems.

For engineers reviewing the MAX1063BCEG+ datasheet, MAX1063BCEG+ pinout, MAX1063BCEG+ application, or MAX1063BCEG+ equivalent, this page delivers verified specifications including ±0.5 LSB INL, 3MHz full-power bandwidth track/hold, 1.9mA active current at 250ksps, 2µs wake-up from shutdown, and 24-pin QSOP package mapping - all confirmed against Maxim's official 19-2724 Rev 1 datasheet.

Technical Context

The MAX1063BCEG+ implements a charge-redistribution SAR architecture with an internal 3MHz full-power bandwidth track/hold stage, supporting both internal and external clock modes (4.8MHz max) and internal/external acquisition control via ACQMOD bit. Its analog input structure enables unipolar/bipolar selection and single-ended/pseudo-differential operation through software-configured control byte (D7–D0), with channel selection limited to CH0–CH3 in single-ended mode.

Conversion timing is deterministic: 13 clock cycles per conversion, with aperture delay of 50ns and aperture jitter <50ps in external acquisition mode. The device uses a 12pF capacitive DAC and features tri-state parallel I/O with HBEN-controlled 8-bit LSB / 2-bit MSB multiplexing, ensuring compatibility with standard 8-bit microprocessor buses while preserving full 10-bit resolution.

Key Specifications

Pinout & Package

MAX1063BCEG+ is housed in a 24-pin QSOP package (5.0mm × 7.5mm body, 0.635mm pitch), RoHS-compliant and lead-free. Pin functions are validated per Maxim's 19-2724 Rev 1 datasheet Figure 3b and Pin Description table.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX1063BCEG+, ADS7822U trades resolution and integration for lower cost and smaller footprint, while AD7923BRUZ upgrades resolution and speed at the expense of parallel interface compatibility and increased power - making MAX1063BCEG+ optimal for space-constrained, µP-based designs needing balanced 10-bit performance with minimal external components.

Availability

MAX1063BCEG+ is available at Aetrix Electronics and suitable for industrial process monitoring, portable medical devices, smart energy metering, and touchscreen controller applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MAX1063BCEG+ 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 markets.

The MAX1063BCEG+ belongs to Maxim's precision data-acquisition ADC product line, designed specifically for low-power, space-constrained embedded systems requiring integrated reference, flexible input configuration, and µP-friendly parallel interface.

FAQ

What is the operating temperature range for MAX1063BCEG+?

The MAX1063BCEG+ is specified for commercial temperature range: 0°C to +70°C. This is confirmed by the "C" grade suffix in the part number and explicitly stated in the Ordering Information section of Maxim's 19-2724 Rev 1 datasheet. Performance parameters including INL, DNL, and reference stability are guaranteed across this range.

Does MAX1063BCEG+ require an external clock to operate?

No, MAX1063BCEG+ supports both internal and external clock modes. When configured for internal clock mode (D7=1, D6=0 in control byte), it generates its own 3.6µs conversion timing without external clock source - the CLK pin must be tied to VDD or GND to prevent floating. External clock mode (D7=1, D6=1) accepts 100kHz–4.8MHz TTL/CMOS signals.

How many analog input channels does MAX1063BCEG+ support in pseudo-differential mode?

MAX1063BCEG+ supports 2 pseudo-differential channels: CH0/CH1 and CH2/CH3. This is explicitly defined in the General Description ("4-channel single ended / 2-channel pseudo-differential") and illustrated in Figure 3b of the datasheet. Each pair measures the voltage difference (CHx – CHy) with COM as common reference.

Can MAX1063BCEG+ interface directly with a 1.8V microcontroller?

Yes, MAX1063BCEG+ can interface directly with a 1.8V microcontroller using its dedicated VLOGIC pin, which accepts +1.8V to +3.6V. Digital I/O levels (VIH/VIL) are specified down to 1.8V supply, and output drive strength (VOH/VOL) meets 1.8V logic thresholds - enabling seamless connection without level shifters.

What is the purpose of the HBEN pin on MAX1063BCEG+?

The HBEN (High Byte Enable) pin on MAX1063BCEG+ controls multiplexing of the 10-bit conversion result onto the 8-bit data bus: when HBEN = 0, D7–D0 carry the 8 LSBs; when HBEN = 1, D7–D0 carry the 2 MSBs (D8/D9). This allows full 10-bit readout using standard 8-bit µP data paths without requiring wider bus traces or additional latches.