AD7249BR

$24.09

Description：IC DAC 12BIT V-OUT 16SOIC
Series：DACPORT®

SKU:75c8c936655c Category: Digital to Analog Converters (DAC) Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC DAC 12BIT V-OUT 16SOIC
Series：DACPORT®
Mfr：Analog Devices Inc.
Package：Tube,Tube
Number of Bits：12
Number of D/A Converters：2
Settling Time：10µs
Output Type：Voltage - Buffered
Differential Output：No
Data Interface：SPI
Reference Type：External, Internal
Voltage - Supply, Analog：±11.4V ~ 15.75V
Voltage - Supply, Digital：-
INL/DNL (LSB)：±0.5 (Max), ±0.9 (Max)
Architecture：R-2R
Operating Temperature：-40°C ~ 85°C
Package / Case：16-SOIC (0.295", 7.50mm Width)
Supplier Device Package：16-SOIC
Mounting Type：Surface Mount

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AD7249BR

Overview

The AD7249BR is a dual 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices, featuring on-chip Zener voltage reference and output amplifiers. It operates with single or dual supplies, supporting ranges of 0 V to +5 V, 0 V to +10 V, and ±5 V. The device utilizes a 3-wire serial interface for data input at rates up to 2 MHz, enabling a DAC update rate of 125 kHz. Packaged in a 16-lead SOIC, it delivers low power dissipation and requires no external trims for specified performance.

Feature Summary

Dual 12-bit CMOS DAC channels with integrated 5 V Zener reference
Three selectable output ranges: 0 V to +5 V, 0 V to +10 V, and ±5 V
3-wire serial interface compatible with DSPs and microcontrollers
125 kHz DAC update rate with settling time of 10 µs max

Applications

Process control systems
Industrial automation
Digital signal processing systems
Input/output ports

Procurement Notes

Verify the B version suffix indicates a ±5% power supply tolerance compared to the A version's ±10%. Confirm the package type is 16-lead SOIC for surface mount installation. Ensure the operating temperature range meets the industrial specification of –40 °C to +85 °C. Check RoHS compliance status as per current manufacturing revisions.

Selection Notes

Select the AD7249BR when two independent 12-bit outputs are required in a small footprint. Choose this part if the application demands a serial interface to minimize pin count. Verify that the required output voltage range matches the internal gain resistor configuration options. Consider the 10 µs settling time for dynamic signal requirements.

Part Context

The AD7249 belongs to the DACPORT family, which integrates DACs with output buffers and references. The B version specifies industrial temperature operation and tighter power supply tolerances than the A version. It is fabricated using LC2MOS technology, combining linear and CMOS processes for high performance.