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AD5685RARUZ is a four-channel, 14-bit nanoDAC+® series digital-to-analog converter (DAC) introduced by Analog Devices (ADI) ‌, integrated ‌ 2ppm /℃ high stability internal reference source ‌, supporting SPI/DSP interface, suitable for high-precision signal generation scenarios ‌.

Product introduction

The AD5685RARUZ is powered by a single supply from 2.7V to 5.5V, which is designed to guarantee monotonicity and has a gain error of less than 0.1% FSR and an offset error of 1.5mV. In addition, the AD5685RARUZ has a power-on reset circuit and an RSTSEL pin that ensures the DAC output is powered to zero or intermediate levels until a valid write operation is performed. The AD5685RARUZ has independent power-saving characteristics for each channel, and in power-saving mode, the AD5685RARUZ's power consumption is reduced to 4 uA at 3 V.

The AD5685RARUZ uses a multifunctional SPI interface with clock rates up to 50 MHz and includes a VLOGIC pin prepared for 1.8V/3V/5V logic level.

Key advantage

1, high relative accuracy: AD5685RARUZ (14 bits) : ±1LSB INL (maximum)

2, low drift vane reference voltage source: temperature drift: 2.5V 2ppm/°C

Application field

1, industrial automation control ‌

AD5685RARUZ can be used for ‌PLC analog output module ‌, through multi-channel independent configuration of the output range, drive valves, motors and other actuators, to meet the high precision control needs of industrial site ‌.

2, communication base station signal tuning ‌

In the RF power amplifier (PA) bias voltage regulation, the AD5685RARUZ provides a stable output signal, supports dynamic adjustment of the base station transmitted power, and optimizes signal coverage ‌.

3. Test and measurement equipment ‌

As ‌ programmable reference source ‌, AD5685RARUZ is integrated in oscilloscope, signal generator and other instruments to generate high-precision calibration signals, improve the reliability of the test system ‌.

4. Medical electronic equipment ‌

In portable medical devices such as electrocardiographs, the AD5685RARUZ is used to generate multiple stimulation signals, support low power design, and extend battery life ‌.

5. Automotive electronic system ‌

The AD5685RARUZ is suitable for vehicle sensor calibration module, communicates with MCU through SPI interface, adjusts sensor output parameters in real time, improves driving safety and data accuracy ‌.

The AD5685RARUZ has the following key features:

High relative accuracy (INL) : ±2 LSB (Max., 16 bits)

Low drift 2.5V reference voltage source: 2 ppm/°C (typical)

Small package: 16-pin TSSOP package

Total non-adjustable error (TUE) : ±0.1% FSR (Max.)

Offset error: ± 1.5mV (Max)

Gain error: ±0.1% FSR (Max)

High drive capacity: 20 mA, 0.5V (power supply rail)

User optional GAIN: 1 or 2 (GAIN pin)

Reset to zero or intermediate level (RSTSEL pin)

1.8 V Logical compatibility

Bring back read or Daisy chain 50 MHz SPI

Low burr: 0.5 nV-sec

Low power consumption: 3.3mW (3V)

2.7V to 5.5V power supply

Temperature range: -40°C to +105°C

To obtain a quote for the AD5685RARUZ products, please visit our website (www.hkmjd.com).