AD7845ARZ

$19.56

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

SKU:fb63ba37d940 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：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)：±1 (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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AD7845ARZ

Overview

The AD7845ARZ is a complete 12-bit multiplying digital-to-analog converter (DAC) featuring an integrated output amplifier. Fabricated on the LC2MOS process, it supports full 4-quadrant multiplication with TTL and 5 V CMOS compatible digital inputs. The device includes three internal application resistors for gain ranging and offset adjustment. It operates within a temperature range of -40°C to +85°C. Key electrical specifications include a maximum relative accuracy of -1 LSB at +25°C, a typical output voltage settling time of 5 ms to 0.01% FSR, and a unity gain small signal bandwidth of 600 kHz. The output amplifier can drive a -10 V load into 2 kΩ.

Feature Summary

Integrated output amplifier enabling full 4-quadrant multiplying capability
Three on-chip application resistors (RA, RB, RC) for gain ranging and offsetting
TTL and 5 V CMOS compatible digital inputs with simple microprocessor interfacing
Guaranteed monotonic operation over the specified temperature range

Applications

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

Procurement Notes

Verify the specific suffix 'ARZ' corresponds to the industrial temperature grade (-40°C to +85°C) and SOIC package variant. Confirm RoHS compliance status as indicated by the 'Z' suffix in ordering guides. Ensure supply chain sources provide valid datasheet references matching Analog Devices documentation.

Selection Notes

Select the AD7845ARZ when a single-channel 12-bit DAC with an integrated buffer is required for space-constrained designs. The presence of internal application resistors simplifies external circuitry for gain scaling. Verify that the parallel interface timing requirements align with the host microprocessor system capabilities.

Part Context

The AD7845 series represents the industry's first 4-quadrant multiplying DAC with an on-chip amplifier. The 'A' designation indicates the industrial temperature range, while 'R' specifies the 24-lead SOIC package. The 'Z' suffix typically denotes lead-free packaging compliant with environmental directives.