AD7845JP-REEL

Description：IC DAC 12BIT 28PLCC
Series：-

SKU:9b52961973b1 Category: Digital to Analog Converters (DAC) Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC DAC 12BIT 28PLCC
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)
Number of Bits：-
Number of D/A Converters：-
Settling Time：-
Output Type：-
Differential Output：-
Data Interface：-
Reference Type：-
Voltage - Supply, Analog：-
Voltage - Supply, Digital：-
INL/DNL (LSB)：-
Architecture：-
Operating Temperature：-
Package / Case：28-LCC (J-Lead)
Supplier Device Package：28-PLCC (11.51x11.51)
Mounting Type：Surface Mount
Grade：-
Qualification：-

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AD7845JP-REEL

Overview

The AD7845JP-REEL is a 12-bit CMOS multiplying digital-to-analog converter (MDAC) with an integrated output amplifier, fabricated on the LC2MOS process. It features full 4-quadrant multiplication capability and guaranteed monotonicity across temperature ranges. The device includes three on-chip application resistors for gain ranging and offset adjustment. Digital inputs are TTL and 5 V CMOS compatible, interfacing via standard CS and WR signals. The output amplifier provides low offset voltage due to laser trimming and can supply -10 V into a 2 kΩ load. Power consumption is 6 mA maximum for VDD and 4 mA maximum for VSS under unloaded conditions.

Feature Summary

12-bit resolution with 4-quadrant multiplying capability and integrated output amplifier
Guaranteed monotonic operation from TMIN to TMAX with ±1 LSB relative accuracy at +25°C
Three on-chip application resistors (RA, RB, RC) for gain ranging and offset adjustment
TTL and 5 V CMOS compatible digital inputs with simple microprocessor interfacing

Applications

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

Procurement Notes

Verify the ordering suffix JPZ indicates the PLCC-28 package and commercial temperature range (0°C to +70°C). Confirm REEL packaging format matches production requirements. Check RoHS compliance status as specified in the manufacturer's documentation. Ensure ESD precautions are observed during handling due to device sensitivity.

Selection Notes

Select the AD7845JP-REEL for applications requiring 4-quadrant multiplication and integrated buffering. The J version offers ±1 LSB accuracy at +25°C and operates within 0°C to +70°C. For tighter accuracy or wider temperature ranges, consider K, A, or B versions. Ensure power supplies are within ±14.25 V to ±15.75 V. Verify that the 28-terminal PLCC package fits the PCB layout constraints.

Part Context

The AD7845 series represents the industry’s first 4-quadrant multiplying DAC with an on-chip amplifier. It utilizes LC2MOS technology to integrate precision linear components and digital circuitry on a single chip. The JP variant specifically denotes the Plastic Leaded Chip Carrier package option within the broader AD7845 family designed for space-saving surface mount implementations.