• 简体中文
• English

MAX5217：14-/16-Bit, Low-Power, Buffered Rail-to-Rail DACs with I²C Interface

Save Power and Board Space with Less than 80µA IQ and a 3mm x 5mm, 8-Pin µMAX Package

The MAX5215/MAX5217 are pin-compatible 14-bit and 16-bit digital-to-analog converters (DACs). The MAX5215/MAX5217 are single-channel, low-powered, buffered voltage-output DACs. The devices use a precision external reference applied through the high resistance input for rail-to-rail operation and low system power consumption. The MAX5215/MAX5217 accept a wide 2.7V to 5.5V supply voltage range. Power consumption is extremely low to accommodate most low-power and low-voltage applications. The MAX5215/MAX5217 have an I²C-compatible, 2-wire serial interface that operates at clock rates up to 400kHz. On power-up, the MAX5215/MAX5217 reset the DAC output to zero, providing additional safety for applications that drive valves or other transducers that need to be off on power-up. The DAC output is buffered resulting in a low supply current of 80µA (max) and a low offset error of ±0.25mV. An asynchronous active-low input, AUX, is provided. This input can be programmed to support clear or load DAC operations, independent of the serial interface. The MAX5215/MAX5217 are available in an ultra-small (3mm x 5mm), 8-pin µMAX® package and are specified over the -40°C to +105°C extended industrial temperature range.

Key Features Low-Power Consumption (80µA, max) 18µs Settling Time 16-/14-Bit Resolution in a 3mm x 5mm, 8-Pin µMAX Package Relative Accuracy ±0.4 LSB INL (MAX5215, 14 Bit) typ, 1 LSB (max) ±1.2 LSB INL (MAX5217, 16 Bit) typ, 4 LSB (max) Guaranteed Monotonic Over All Operating Range Low Gain and Offset Error Wide 2.7V to 5.5V Supply Range Rail-to-Rail Buffered Output Operation Safe Power-Up-Reset to Zero DAC Output I²C-Compatible 400kHz Serial Interface User-Programmable Active-Low AUX Input Functions Active-Low CLR, Clear to 0, Midscale, or Full Scale Active-Low LDAC, Asynchronous Load DAC 256kΩ Reference Input Resistance for Low Power Operation Buffered Voltage Output Directly Drives 10kΩ Loads Output Power-Down Terminated with 1kΩ or 100kΩ to Ground or Left High-Impedance

MAX5215, MAX5217: Functional Block Diagram Applications/Uses Automatic Test Equipment Automatic Tuning Communication Systems Data Acquisition Gain and Offset Adjustment Portable Instrumentation Power Amplifier Control Process Control and Servo Loops Programmable Voltage and Current Sources Remote Sensing

DataSheet

Parametrics

Design kits & evaluation modules

• MAX5217EVKIT

Related Products

• MAX5318：18-Bit, High-Accuracy Voltage Output DAC with Digital Gain, Offset Control, and SPI Interface
• MAX5214：14-/16-Bit, Low-Power, Buffered Output, Rail-to-Rail DACs with SPI Interface
• MAX5216：14-/16-Bit, Low-Power, Buffered Output, Rail-to-Rail DACs with SPI Interface

Ordering Information