AD7849AR-REEL

Description：IC DAC 14BIT V-OUT 20SOIC
Series：-

SKU:47413c78f3ac Category: Digital to Analog Converters (DAC) Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC DAC 14BIT V-OUT 20SOIC
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)
Number of Bits：14
Number of D/A Converters：1
Settling Time：10µs (Typ)
Output Type：Voltage - Buffered
Differential Output：No
Data Interface：SPI
Reference Type：External
Voltage - Supply, Analog：±14.25V ~ 15.75V
Voltage - Supply, Digital：5V
INL/DNL (LSB)：±5 (Max), ±0.25 (Max)
Architecture：String DAC
Operating Temperature：-40°C ~ 85°C
Package / Case：20-SOIC (0.295", 7.50mm Width)
Supplier Device Package：20-SOIC
Mounting Type：Surface Mount

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AD7849AR-REEL

Overview

The AD7849AR-REEL is a 16-bit serial input multiplying digital-to-analog converter (DAC) manufactured by Analog Devices Inc. It operates with analog supply voltages of ±14.25 V to ±15.75 V and a digital supply of 4.75 V to 5.25 V. The device features a versatile three-wire serial interface, guaranteed monotonicity over the specified temperature range, and an output that clears to 0 V in both unipolar and bipolar configurations. It includes internal power-up/down control logic to clamp the output during supply transitions.

Feature Summary

16-bit resolution with guaranteed monotonicity
Versatile serial interface supporting standalone and daisy-chain modes
Internal or external output control during power-up and power-down sequences
DAC clears to 0 V in unipolar and bipolar output ranges

Applications

Industrial process controls
PC analog I/O boards
Instrumentation

Procurement Notes

Verify the 'REEL' suffix indicates tape-and-reel packaging rather than tube packaging when sourcing this specific part number. Confirm the A-grade specification aligns with project requirements for 14-bit effective accuracy despite the 16-bit architecture. Ensure compatibility with existing serial clock and data line timing constraints.

Selection Notes

Select the AD7849AR-REEL for applications requiring high-resolution voltage output controlled via a serial bus. The device supports both binary and two's complement coding via the BIN/COMP pin. Designers must account for the external reference voltage requirements and ensure the load does not exceed the specified resistive and capacitive limits to maintain performance.

Part Context

This component belongs to the AD7849 series of multiplying DACs from Analog Devices. The 'AR' designation typically refers to the SOIC-20 package variant, while the '-REEL' suffix specifies the reel packaging format for automated assembly. It is part of a family designed for precision industrial and instrumentation applications requiring serial connectivity.