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AD7226KRZ

Quad 8-bit voltage output DAC, 4-channel, MPU-compatible, 20-SOIC, no external trims

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Manufacturer Part：

AD7226KRZ

Package：

SOIC-20 (Wide) (7.5 x 12.8 mm)

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Description

Product Overview

The AD7226KRZ from Analog Devices is a LC²MOS Quad 8-Bit Voltage Output D/A Converter in a 20-Lead Wide SOIC package. It integrates four 8-bit DACs with output buffer amplifiers and microprocessor-compatible interface logic on a single monolithic chip, requiring no external trims for full specified performance.

Key Specifications

Resolution 8 Bit
Number of DACs 4
Reference Voltage Range 2 V to 12.5 V
Output Current 5 mA per channel
Settling Time 4 μs max
Supply Voltage (VDD) 11.4 V to 16.5 V
Supply Voltage (VSS) -5 V ±10%
Package 20-Lead SOIC (Wide)
Operating Temperature -40°C to +85°C

Features

  • Four 8-bit DACs with output amplifiers on a single chip
  • Microprocessor-compatible with individual DAC latches
  • TTL/CMOS-compatible digital inputs
  • No user trims required — laser-trimmed offsets
  • Single supply operation possible
  • Extended temperature range operation
  • DAC-to-DAC matching inherent from monolithic fabrication

Applications

  • Process control systems
  • Automatic test equipment
  • Automatic calibration of system parameters
  • Motor control and servo loops
  • Programmable voltage sources

The AD7226KRZ is a LC2MOS Quad 8-Bit Voltage Output D/A Converter manufactured by Analog Devices. It contains four 8-bit voltage-output DACs with output buffer amplifiers and interface logic on a single monolithic chip. Separate on-chip latches are provided for each of the four D/A converters. Data is transferred through a common 8-bit TTL/CMOS compatible input port, with control inputs A0 and A1 selecting the target DAC. No external trims are required to achieve full specified performance. The AD7226 is fabricated in a high-speed Linear Compatible CMOS process, allowing both high-speed digital logic and precision analog circuits on the same chip.

The AD7226KRZ operates as four independent 8-bit DACs sharing a common data bus and control logic. An 8-bit data word is loaded into the selected DAC latch via the common input port when WR goes low. Address inputs A0 and A1 determine which DAC is addressed. Each DAC includes an output buffer amplifier capable of driving up to 5 mA. The voltage-mode configuration allows single-supply operation, with the output polarity matching the reference voltage. The on-chip laser-trimmed offsets eliminate the need for external nulling circuitry.

Pin Name Type Function
1 VDD Power Positive supply voltage (+11.4V to +16.5V)
2 VREF Input Reference voltage input (+2V to +12.5V)
3 AGND Ground Analog ground
4-7 VOUT A-D Output Analog voltage outputs for DACs A through D
8 DGND Ground Digital ground
9-16 DB0-DB7 Input 8-bit data bus inputs
17 WR Input Write control input (active low)
18 A1 Input DAC address select bit 1
19 A0 Input DAC address select bit 0
20 VSS Power Negative supply voltage (-5V)
  • Process control and industrial automation
  • Automatic test and measurement equipment
  • System gain and offset calibration
  • Programmable power supply references
  • Motor drive and servo control systems
Manufacturer Part Number Package Notes
Analog Devices AD7226BRSZ SSOP-20 Smaller footprint, same function
Analog Devices AD7226KNZ PDIP-20 Through-hole version
Maxim Integrated MAX527 SOIC-20 Quad 12-bit DAC, similar pinout
Texas Instruments DAC7625 SOIC-28 Quad 12-bit voltage output DAC
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All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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