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Name: DAC8420ESZ
Brand: Analog Devices Inc.
SKU: DAC8420ESZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Analog Devices Inc. DAC8420ESZ

Part No.:: DAC8420ESZ

Manufacturer:: Analog Devices Inc.

Package:: 16-SOIC (0.295, 7.50mm Width)

Datasheet:: DAC8420ESZ.pdf

Description:: IC DAC 12BIT V-OUT 16SOIC

In Stock:: 3333

Quantity:: Add To Cart

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DAC8420ESZ Specifications

Package/Case:
16-SOIC (0.295, 7.50mm Width)
Packaging:
Tube
Series:
-
ProductStatus:
Active
NumberofBits:
12
NumberofD/AConverters:
4
SettlingTime:
13µs (Typ)
OutputType:
Voltage - Buffered
DifferentialOutput:
No
DataInterface:
SPI
ReferenceType:
External
Voltage-SupplyAnalog:
5V ~ 15V, -15V
Voltage-SupplyDigital:
5V
INL/DNL(LSB):
±0.5, ±0.25
Architecture:
R-2R
OperatingTemperature:
-40°C ~ 85°C

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DAC8420ESZ information

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DAC8420ESZ Typical application Circuitry

DAC8420ESZ

The DAC8420ESZ is a highly precise, single-channel, 12-bit digital-to-analog converter (DAC) developed by Analog Devices. This chip is specifically engineered to convert digital input signals into accurate analog voltage outputs, making it a key component in applications that require high precision and stability in their analog output, such as in industrial automation, process control, and precision instrumentation.

Key Features and Parameters:

- 12-Bit Resolution: Offers high precision in converting digital signals to analog outputs, ensuring detailed and accurate representation of the input signal.

- Single Voltage Output: Simplifies circuit design for applications requiring a single precise analog output.

- Serial Interface: Facilitates communication with microcontrollers or digital signal processors, allowing for easy integration into digital systems.

- Low Power Consumption: Ideal for applications where power efficiency is critical, enhancing the suitability for battery-operated devices.

- Wide Operating Temperature Range: Ensures reliable operation in a broad range of environmental conditions, making it suitable for industrial applications.

Application Scenario: A practical application for the DAC8420ESZ is in a digital temperature control system for industrial ovens, where precise control of temperature is crucial for maintaining product quality.

Circuit Design:

Implementing the DAC8420ESZ in a digital temperature control system involves a detailed approach to its pin configuration and connectivity:

1. Serial Data Interface (SDIN, Pin 14; SCLK, Pin 13; CS, Pin 12): These pins should be connected to the SPI bus of the controlling microcontroller. This configuration is essential for transmitting digital temperature setpoints to the DAC8420ESZ, which are then converted into analog signals to control the heating elements.

2. Analog Output Connection (VOUT, Pin 6): The analog output pin is connected to the input of the temperature control circuit. This output regulates the power supplied to the heating elements, precisely controlling the oven temperature.

3. Power Supply and Grounding (VDD, Pin 16; AGND, Pin 7; DGND, Pin 8): Providing a stable power supply to VDD is crucial for the optimal performance of the DAC8420ESZ. Proper grounding through AGND and DGND minimizes noise, ensuring the accuracy of the analog output.

4. Reference Voltage Setup (REFIN, Pin 15; REFOUT, Pin 17): An external precision reference voltage connected to REFIN defines the output voltage range of the DAC, crucial for calibrating the control signal to the desired temperature range. REFOUT can be used to buffer the reference voltage for other parts of the system.

5. Feedback Loop Integration (VOUT, Pin 6): To maintain precise temperature control, a feedback loop from the temperature sensor to the microcontroller adjusts the digital input to the DAC8420ESZ, compensating for any deviations from the target temperature.

Design Considerations:

- Noise Isolation: Designing the layout to physically separate digital and analog components reduces the risk of digital noise affecting the analog output.

- Power Supply Decoupling: Placing decoupling capacitors close to the DAC8420ESZ's power pins is crucial for filtering out power supply noise, ensuring stable DAC operation.

- Thermal Management: Although the DAC8420ESZ is designed to operate within a wide temperature range, maintaining an optimal operating temperature through proper circuit design and ventilation is important for performance and longevity.

- Reference Voltage Stability: The accuracy of the DAC8420ESZ is highly dependent on the stability and precision of the reference voltage. Employing a high-quality, stable reference voltage source is imperative for achieving precise temperature control.

Using the DAC8420ESZ in a digital temperature control system for industrial ovens exemplifies the DAC's ability to provide precise analog control signals from digital inputs. This application highlights the DAC8420ESZ's precision and reliability, demonstrating its suitability for applications where exact control and stability are paramount.

DAC8420ESZ FAQ

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6. What is the process for return or replacement of DAC8420ESZ?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the DAC8420ESZ we delivered, we will accept the replacement or return of the DAC8420ESZ only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of DAC8420ESZ.

(3)The PartNo is unused and only in the original unpacked packaging.

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(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations