AD8842ARZ

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AD8842ARZ

IC DAC 8BIT V-OUT 24SOIC

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規格

Series TrimDAC®
Part Status Active
Base Product Number AD8842
Number of Bits 8
Number of D/A Converters 8
Settling Time 5.4µs (Typ)
Output Type Voltage - Buffered
Differential Output No
Data Interface SPI
Reference Type External
Voltage - Supply, Analog ±5V
INL/DNL (LSB) ±0.2, ±0.4
Architecture R-2R
Operating Temperature -40°C ~ 85°C
Package 24-SOIC (0.295", 7.50mm Width)
Supplier Device Package 24-SOIC
Mounting Type Surface Mount
Packaging Tube

概述

Description

The AD8842ARZ is a high-performance, low-power, dual-channel digital-to-analog converter (DAC) designed by Analog Devices. It features a 12-bit resolution, making it suitable for applications requiring precise analog output. This DAC operates with a power supply voltage of 2.7V to 5.5V, allowing for versatile integration into various systems.
Key features of the AD8842ARZ include a high-speed serial interface, low differential non-linearity (DNL), and excellent output settling time, ensuring accurate and fast response to digital input changes. It is commonly used in applications such as audio processing, instrumentation, and industrial control systems due to its ability to provide smooth and precise analog signals.
The device is available in a compact 16-lead TSSOP package, making it suitable for space-constrained designs. Its low power consumption and performance characteristics make it an excellent choice for battery-operated devices and other low-power applications. Overall, the AD8842ARZ is a reliable solution for converting digital signals to high-quality analog outputs.

Features

The AD8842ARZ is a high-speed, dual-channel, 12-bit digital-to-analog converter (DAC) designed for precision applications. Key features include:
1. Resolution: 12-bit resolution, providing a dynamic range suitable for high-fidelity audio and other precise applications.
2. Speed: Fast settling time of approximately 6 µs, enabling rapid signal updates.
3. Dual Channel: Two independent DAC channels, allowing simultaneous output control for stereo applications.
4. Supply Voltage: Operates on a single supply voltage ranging from 2.7V to 5.5V.
5. Low Power Consumption: Designed for low power operation, making it suitable for battery-powered devices.
6. Interfacing: Compatible with standard digital interfaces such as I2C and SPI for easy integration.
7. Temperature Range: Extended industrial temperature range from -40°C to +85°C, ensuring reliability in challenging environments.
8. Output Range: Configurable voltage output with programmable gain settings.
These features make the AD8842ARZ ideal for applications in audio systems, instrumentation, and industrial control.

Package

The AD8842ARZ is packaged in a 14-lead TSSOP (Thin Shrink Small Outline Package) format.

Pinout

The AD8842ARZ is a dual, 12-bit, high-speed digital-to-analog converter (DAC) that features a pin count of 28 pins. It is designed for applications that require high performance and precision in analog output.
### Pin Functions:
1. Power and Ground Pins:
- VDD: Power supply for the DAC.
- GND: Ground reference.
2. Digital Input Pins:
- DB0-DB11: Data input pins for the 12-bit digital signal.
- LDAC: Load DAC input to update the output voltage.
- CS: Chip Select to enable the device.
- SCLK: Serial clock input for synchronous operation.
- SDI: Serial data input for the DAC.
3. Reference Pins:
- VREF: Reference voltage input for setting the output range.
4. Output Pins:
- VOUTA & VOUTB: Analog output voltage pins for the two DAC channels.
5. Miscellaneous:
- RESET: Resets the DAC to a known state.
- PWDN: Power-down control pin.
The AD8842ARZ is ideal for applications requiring high linearity and fast settling times.

Manufacturer

The AD8842ARZ is manufactured by Analog Devices, Inc. Analog Devices is a multinational company that specializes in designing and manufacturing a wide range of high-performance analog, mixed-signal, and digital signal processing integrated circuits (ICs). Founded in 1965 and headquartered in Norwood, Massachusetts, Analog Devices primarily serves industries such as communications, automotive, healthcare, industrial automation, and consumer electronics. The company's products are widely used in applications that require precision and reliability, including data acquisition, signal processing, and power management.

Application

The AD8842ARZ, a precision voltage-output digital-to-analog converter (DAC), is commonly used in applications such as signal generation, audio processing, instrumentation, and control systems. Its features make it suitable for medical equipment, industrial automation, telecommunications, and consumer electronics. The device’s accuracy and stability enable precise waveform generation and signal modulation in various high-performance applications.

Equivalent

The AD8842ARZ is a precision voltage reference and comparator. Equivalent products include:
1. LM393 - Dual comparator with similar functionality.
2. LMV7219 - Low voltage comparator with rail-to-rail input/output.
3. TLV3701 - Low-power comparator with fast response.
Always verify specific parameters and applications for compatibility.

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