AD7948BRZ-REEL

$10.14

Description：IC DAC 12BIT A-OUT 20SOIC
Series：-

SKU:2d04101f7c11 Category: Digital to Analog Converters (DAC) Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC DAC 12BIT A-OUT 20SOIC
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)
Number of Bits：12
Number of D/A Converters：1
Settling Time：600µs (Typ)
Output Type：Current - Unbuffered
Differential Output：No
Data Interface：Parallel
Reference Type：External
Voltage - Supply, Analog：5V
Voltage - Supply, Digital：5V
INL/DNL (LSB)：±0.5 (Max), ±0.5 (Max)
Architecture：R-2R
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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AD7948BRZ-REEL

Overview

The AD7948BRZ-REEL is a 12-bit multiplying digital-to-analog converter (DAC) from Analog Devices, featuring an 8-bit byte interface. It operates on a single +3.3 V to +5 V supply and delivers a current output at IOUT1. Key electrical specifications include ±0.5 LSB maximum integral nonlinearity (INL) and differential nonlinearity (DNL), with a typical settling time of 600 ns to 0.01%. The device consumes approximately 5 mW of power and supports write pulse widths of 40 ns. It is housed in a 20-lead SOP package.

Feature Summary

12-bit resolution with ±0.5 LSB INL and DNL accuracy
8-bit byte interface with CSMSB, CSLSB, and WR control signals
Low power consumption of 5 mW typ at +5 V supply
Fast settling time of 600 ns to 0.01% full-scale range

Applications

Battery-powered instrumentation systems
Laptop computer peripheral interfaces
Upgrades for legacy 754x series DAC designs

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature grade. The REEL suffix indicates tape-and-reel packaging; ensure compatibility with automated assembly equipment. Confirm availability status directly with authorized distributors as supply conditions may vary.

Selection Notes

Select this component when an 8-bit parallel interface is required for 12-bit conversion speed. Ensure the system design accommodates the current-output architecture by including an external operational amplifier. Verify that the application voltage range aligns with the +3.3 V to +5 V operating specification for optimal performance.

Part Context

This part belongs to the AD7943/AD7945/AD7948 family of fast multiplying DACs. While functionally similar to the AD7945, it utilizes an 8-bit byte interface instead of a 12-bit parallel bus. This distinction allows for reduced pin count usage in microcontroller-based designs requiring high-speed data updates.