Analog Devices Inc./Maxim Integrated MAX516ACWG+

Overview

MAX516ACWG+ from Maxim Integrated is a 10-bit, single-channel voltage-output DAC with rail-to-rail output swing, ±1 LSB integral nonlinearity (INL), and 1 µs settling time, used in precision analog control loops for industrial process instrumentation.

For engineers reviewing the MAX516ACWG+ datasheet, MAX516ACWG+ pinout, MAX516ACWG+ application, or MAX516ACWG+ equivalent, key selection factors include its 10-bit resolution, SPI-compatible 3-wire serial interface, internal 2.048V reference, and operation from a single +5V supply.

Technical Context

The MAX516ACWG+ integrates a precision 10-bit DAC core, on-chip 2.048V bandgap reference, and SPI-compatible serial interface with independent LDAC and CLR inputs. It supports unbuffered voltage output with rail-to-rail capability and operates over the 0°C to +70°C commercial temperature range.

Its architecture avoids external reference dependency and eliminates need for output amplification in many low-bandwidth control applications. The device uses a double-buffered input register to prevent spurious outputs during data loading.

Key Specifications

Pinout & Package

MAX516ACWG+ is housed in a 16-pin SOIC (Wide) package with 0.3-inch body width and standard SOIC thermal and mechanical characteristics.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar voltage-output DAC applications.

Compared with AD5300BRMZ and MCP4911-E/P, the MAX516ACWG+ uniquely combines internal 2.048V reference, rail-to-rail output, and dedicated CLR input-reducing component count and improving reliability in compact industrial control modules.

Availability

MAX516ACWG+ is available at Aetrix Electronics and suitable for industrial process control, automated test equipment, and medical instrumentation requiring stable component supply and long-lifecycle support.

Supply support for MAX516ACWG+ 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 precision analog, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.

The MAX516ACWG+ belongs to Maxim's precision DAC product line, engineered for low-power, single-supply industrial control systems requiring high linearity and minimal external components.

FAQ

What is the reference voltage configuration of the MAX516ACWG+?

The MAX516ACWG+ features an internal 2.048V bandgap reference that is selected by grounding the REF pin. When REF is tied to VDD, the device accepts an external reference. This dual-mode flexibility allows use with either internal precision or user-defined reference sources without redesigning the reference circuitry. The MAX516ACWG+ maintains specified INL and settling performance under both configurations.

Does the MAX516ACWG+ require an external op-amp for rail-to-rail output?

No, the MAX516ACWG+ delivers true rail-to-rail voltage output directly from the OUT pin, spanning 0V to VDD (typically 0V to +5V) without external amplification. Its output stage is designed to drive capacitive loads up to 1000 pF while maintaining 1 µs settling time and ±1 LSB INL. This eliminates the need for external op-amps in most low-bandwidth control applications, reducing bill-of-materials and PCB area. The MAX516ACWG+ achieves this using an integrated output buffer optimized for stability and linearity.

What is the function of the CLR pin on the MAX516ACWG+?

The CLR (Clear) pin on the MAX516ACWG+ is an active-low asynchronous input that forces the DAC output to zero-scale voltage (0V) regardless of the contents of the input register. This hardware reset function enables fast, deterministic output shutdown or initialization without requiring serial communication or software intervention. In safety-critical or fault-recovery scenarios, asserting CLR provides immediate analog output disablement. The MAX516ACWG+ retains this behavior across its full operating temperature range and supply voltage tolerance.

Is the MAX516ACWG+ compatible with standard SPI interfaces?

Yes, the MAX516ACWG+ implements a standard 3-wire SPI-compatible serial interface using DIN, SCLK, and LDAC pins. It accepts 10-bit data with MSB-first format and supports clock frequencies up to 10 MHz. No special framing or protocol extensions are required-microcontrollers with standard SPI peripherals can drive the MAX516ACWG+ directly using standard shift-out routines. The MAX516ACWG+ does not require chip-select signaling, simplifying interface wiring and firmware implementation.

What temperature range is specified for the MAX516ACWG+?

The MAX516ACWG+ is specified for operation over the 0°C to +70°C commercial temperature range. All key parameters-including INL, DNL, settling time, and reference accuracy-are guaranteed across this range. The device uses temperature-compensated circuitry to maintain ±1 LSB INL and 1 µs settling time without derating. This makes the MAX516ACWG+ suitable for indoor industrial environments, laboratory equipment, and office-based instrumentation where ambient conditions remain within these bounds.