AD5725BRSZ-1500RL7

Overview

The AD5725BRSZ-1500RL7 is a quad, 12-bit parallel input voltage output digital-to-analog converter manufactured by Analog Devices. It features guaranteed monotonicity with a maximum integral nonlinearity (INL) of ±0.5 LSB and a maximum differential nonlinearity (DNL) of ±1 LSB. The device supports operation from single +5 V to dual ±15 V supplies, utilizing iCMOS process technology for low power consumption. Key performance metrics include a maximum settling time of 10 µs for a 10 V step and a slew rate of 2.2 V/µs. It includes double-buffered inputs, simultaneous updating via LDAC, and asynchronous CLR functionality.

Feature Summary

• Quad 12-bit resolution with ±0.5 LSB max INL and ±1 LSB max DNL
• Parallel interface with readback capability and double-buffered inputs
• Wide supply range: Single +5 V to Dual ±15 V operation
• Asynchronous CLR to zero or mid-scale and simultaneous DAC updating

Applications

• Industrial automation systems
• Closed-loop servo control and process control
• Automotive test and measurement equipment
• Programmable logic controllers

Procurement Notes

Verify the specific grade (A or B) associated with the ordering suffix, as INL specifications vary between ±1 LSB and ±0.5 LSB respectively. Confirm package type SSOP-28 and reel packaging details. Ensure reference voltages are within the specified ranges relative to AVDD and AVSS to maintain linearity guarantees.

Selection Notes

Select this component when high-voltage analog outputs are required from standard logic levels. The parallel interface suits applications where pin count is less critical than speed. Verify that the load requirements do not exceed ±5 mA output current. Consider the ±15 V supply capability if bipolar outputs are needed without external amplification.

Part Context

This part belongs to the AD5725 family of quad 12-bit DACs. The 'B' in the model number typically denotes the B-grade accuracy variant with tighter INL specifications compared to the A-grade. The '-1500RL7' suffix indicates the tape and reel packaging quantity and style provided by the manufacturer.

Replacement Considerations

Direct replacements within the same family include the AD5725ARSZ for A-grade accuracy. For serial interface alternatives, consider the AD5726 series. Ensure any substitute maintains the parallel interface and ±15 V supply compatibility if system constraints require these specific electrical characteristics.

FAQ

How is the output voltage range configured?

The output range is set by the VREFP and VREFN pins. Unipolar positive output is achieved with VREFN at 0 V and VREFP at a positive voltage. Bipolar outputs are configured by applying nonzero voltages to both references.

What is the function of the CLR pin?

The CLR pin is an active-low input that asynchronously sets the DAC registers to zero scale (0x000) or mid-scale (0x800), depending on the specific grade variant. It is independent of the CS signal.

Can the AD5725 operate with a single +5 V supply?

Yes, the device operates from a single +5 V supply (AVSS = 0 V). In this configuration, the INL specification may degrade to ±1 LSB for the B-grade variant, and the output range is unipolar positive.