AD7845BRZ

Description：IC DAC 12BIT V-OUT 24SOIC
Series：-

SKU:8fb9d5679428 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 24SOIC
Series：-
Mfr：Analog Devices Inc.
Package：Bulk,Tube
Number of Bits：12
Number of D/A Converters：1
Settling Time：5µs
Output Type：Voltage - Buffered
Differential Output：No
Data Interface：Parallel
Reference Type：External
Voltage - Supply, Analog：±14.25V ~ 15.75V
Voltage - Supply, Digital：-
INL/DNL (LSB)：±0.75 (Max), ±1 (Max)
Architecture：R-2R
Operating Temperature：-40°C ~ 85°C
Package / Case：24-SOIC (0.295", 7.50mm Width)
Supplier Device Package：24-SOIC
Mounting Type：Surface Mount
Grade：-
Qualification：-

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AD7845BRZ

Overview

The AD7845BRZ is a complete 12-bit multiplying digital-to-analog converter (MDAC) with an integrated output amplifier, fabricated on the LC2MOS process. It supports full 4-quadrant multiplication and features three on-chip application resistors for gain ranging and offset adjustment. The device operates within an industrial temperature range of –40°C to +85°C. Key electrical specifications include a maximum settling time of 5 ms to 0.01% of full-scale range, a typical glitch impulse of 55 nV-s, and a unity gain small-signal bandwidth of 600 kHz. It accepts TTL and 5 V CMOS compatible digital inputs.

Feature Summary

Integrated output amplifier capable of supplying –10 V into a 2 kΩ load
Three on-chip application resistors (RA, RB, RC) for gain ranging and offsetting
Guaranteed monotonic operation across the full temperature range
TTL and 5 V CMOS compatible digital inputs

Applications

Automatic Test Equipment
Digital Attenuators
Programmable Power Supplies
Programmable Gain Amplifiers
Digital-to-4–20 mA Converters

Procurement Notes

Verify that the ordering suffix 'BRZ' corresponds to the specified industrial temperature grade (–40°C to +85°C) and RoHS compliance status as defined in the manufacturer's official documentation. Confirm package availability matches the required surface-mount configuration.

Selection Notes

Select the AD7845BRZ when a single-chip solution combining a 12-bit DAC and a buffered output amplifier is required. Ensure the design accommodates dual power supplies (typically ±15 V) and utilizes the internal application resistors if gain scaling or offset adjustments are needed without external components.

Part Context

The AD7845BRZ belongs to the AD7845 family of 12-bit CMOS multiplying DACs. The 'B' suffix denotes the industrial temperature variant, while 'R' indicates the 24-lead SOIC surface-mount package. This component is part of Analog Devices' legacy LC2MOS product line designed for precision analog signal processing.