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Name: DAC7614U
Brand: Texas Instruments
SKU: DAC7614U
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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Texas Instruments DAC7614U

Part No.:: DAC7614U

Manufacturer:: Texas Instruments

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

Datasheet:: DAC7614U.pdf

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

In Stock:: 2791

Quantity:: Add To Cart

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DAC7614U Specifications

Package/Case:
16-SOIC (0.295, 7.50mm Width)
Packaging:
Tube
Series:
-
ProductStatus:
Active
NumberofBits:
12
NumberofD/AConverters:
4
SettlingTime:
10µs
OutputType:
Voltage - Buffered
DifferentialOutput:
No
DataInterface:
SPI
ReferenceType:
External
Voltage-SupplyAnalog:
±5V
Voltage-SupplyDigital:
5V
INL/DNL(LSB):
±2 (Max), ±1 (Max)
Architecture:
R-2R
OperatingTemperature:
-40°C ~ 85°C

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DAC7614U information

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DAC7614U Typical application Circuitry

DAC7614U

The DAC7614U stands as a distinguished digital-to-analog converter (DAC) produced by Texas Instruments, characterized by its four independently controllable 12-bit resolution channels. This chip efficiently transforms digital input values into analog voltages, making it an invaluable asset for applications necessitating high precision and multiple analog outputs. Its design and functionality are particularly suited for use in environments like automated testing equipment, precision instrumentation, and industrial process controls, where accurate analog outputs derived from digital signals are crucial.

Key Features and Parameters:

- Quartet of 12-Bit DACs: The device boasts four separate DAC channels, enabling it to output multiple analog signals from digital inputs concurrently, enhancing the versatility and complexity of control systems.

- 12-Bit Resolution: Each channel's high resolution ensures the production of precise analog voltages, critical for applications demanding fine control.

- Single 5V Supply Operation: The DAC operates on a singular 5V power supply, simplifying the power architecture of systems it's integrated into.

- SPI Interface: The incorporation of a Serial Peripheral Interface (SPI) facilitates easy and efficient communication with a variety of microcontrollers or digital processors, making system integration seamless.

- Efficient Power Utilization: Its design prioritizes low power consumption, which is pivotal for battery-operated or energy-sensitive applications.

Application Scenario: A particularly apt application of the DAC7614U is within a climate control system for a smart greenhouse, where it regulates temperature, humidity, and light levels by controlling actuators based on digital input signals.

Circuit Design:

Deploying the DAC7614U within such a climate control system involves meticulous planning around its pin layout and connectivity:

1. SPI Communication Setup (DIN, Pin 3; SCLK, Pin 4; SYNC, Pin 5): These pins must be connected to the SPI lines on a controlling microcontroller, allowing for the transmission of digital control data to the DAC7614U, which in turn adjusts the output voltages accordingly.

2. Analog Outputs Deployment (AOUT1, Pin 8; AOUT2, Pin 6; AOUT3, Pin 14; AOUT4, Pin 12): The outputs from these pins control various environmental actuators within the greenhouse. For example, AOUT1 could adjust temperature, AOUT2 could modulate humidity, and AOUT3 and AOUT4 could vary light intensity and CO2 levels, respectively.

3. Stable Power Supply Connection (VDD, Pin 16) and Grounding Strategy (AGND, Pin 7; DGND, Pin 10): A consistent 5V supply to VDD is imperative for the DAC's optimal operation, with AGND and DGND properly grounded to minimize noise, thereby ensuring signal integrity.

4. External Reference Voltage Application (REF, Pin 15): Attaching an external reference voltage to this pin allows for fine-tuning of the output voltage range, crucial for precise control over the environmental conditions within the greenhouse.

5. Implementation of Output Filters (On AOUT1-AOUT4): To smooth the DAC output signals and remove potential digital noise, low-pass filters can be employed on each channel, ensuring the actuators receive clean and stable control signals.

Design Considerations:

- Mitigation of Digital Noise: It's paramount to isolate the DAC's digital interface from its analog outputs to avert digital switching noise from impacting the analog signals.

- Decoupling for Stability: Employing decoupling capacitors near the DAC7614U's power supply pin is essential to negate voltage spikes and noise, promoting stable DAC operation.

- Managing Thermal Conditions: While the DAC7614U generally exhibits low thermal emission, maintaining operation within specified temperature ranges guarantees accuracy and device longevity.

- Ensuring Reference Voltage Integrity: The overall system accuracy is significantly influenced by the precision of the reference voltage. Selecting a high-quality reference source minimizes drift and variance in the analog outputs.

Embedding the DAC7614U within a smart greenhouse's climate control system exemplifies its ability to convert digital instructions into nuanced analog control signals, directing actuators to maintain optimal growing conditions. This application underscores the chip's adaptability and precision, illustrating its broad utility in complex environmental control systems.

DAC7614U FAQ

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3. Are the DAC7614U price and inventory displayed accurate?

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6. What is the process for return or replacement of DAC7614U?

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 DAC7614U we delivered, we will accept the replacement or return of the DAC7614U 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 DAC7614U.

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

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations