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Name: DAC7734EC
Brand: Texas Instruments
SKU: DAC7734EC
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 DAC7734EC

Part No.:: DAC7734EC

Manufacturer:: Texas Instruments

Package:: 48-BSSOP (0.295, 7.50mm Width)

Datasheet:: DAC7734EC.pdf

Description:: IC DAC 16BIT V-OUT 48SSOP

In Stock:: 3537

Quantity:: Add To Cart

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DAC7734EC Specifications

Package/Case:
48-BSSOP (0.295, 7.50mm Width)
Packaging:
Tube
Series:
-
ProductStatus:
Active
NumberofBits:
16
NumberofD/AConverters:
4
SettlingTime:
11µs
OutputType:
Voltage - Buffered
DifferentialOutput:
No
DataInterface:
SPI
ReferenceType:
External
Voltage-SupplyAnalog:
±14.25V ~ 15.75V
Voltage-SupplyDigital:
5V
INL/DNL(LSB):
±3 (Max), ±1 (Max)
Architecture:
R-2R
OperatingTemperature:
-40°C ~ 85°C

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DAC7734EC information

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DAC7734EC Typical application Circuitry

DAC7734EC

The DAC7734EC is a feature-rich quad-channel, 16-bit digital-to-analog converter (DAC) designed by Texas Instruments, aimed at translating digital information into analog output signals with high precision and accuracy. This chip is ideal for sophisticated applications requiring precise analog control or signal output from digital values. Its functionality is critical in various sectors such as industrial automation, precision instrumentation, medical devices, and digital communication systems, where accurate analog output is essential for control and signal processing tasks.

Core Specifications and Attributes:

- Quadruple 16-Bit DACs: Enables the conversion of digital input to four separate and precise analog outputs, allowing for complex and detailed control schemes.

- Broad Power Supply Compatibility: Designed to operate efficiently across a wide range of power supply voltages, ensuring versatility in diverse application environments.

- Integrated High-Precision Reference: Features an onboard precision reference voltage, crucial for the accuracy and stability of the analog outputs.

- Serial Communication Interface: Supports serial connectivity, facilitating seamless integration with microcontrollers and digital signal processors for efficient data transmission.

- Optimized Power Consumption: The device is engineered for low power usage, making it suitable for applications where power efficiency is a priority.

Application Scenario: An effective application for the DAC7734EC is within a sophisticated environmental control system, specifically for managing temperature, humidity, and CO2 levels in an advanced greenhouse.

Detailed Circuit Implementation:

The integration of the DAC7734EC into an environmental control system involves meticulous planning around pin connections and operational considerations:

1. Serial Data Connectivity (SDI, Pin 3; SCLK, Pin 5; CS, Pin 4): These pins are interfaced with the SPI bus of the environmental system's control unit. This connection is pivotal for relaying digital control signals to the DAC7734EC, which it converts into analog signals to adjust environmental parameters.

2. Analog Outputs to Actuators (AOUT1, Pin 14; AOUT2, Pin 15; AOUT3, Pin 16; AOUT4, Pin 17): Utilize these outputs to control actuators responsible for adjusting temperature, humidity, and CO2 levels. The independent channels allow for simultaneous and precise adjustments across multiple environmental factors.

3. Power Supply and Reference Configuration (AVDD, Pin 24; AGND, Pin 23; REF+, Pin 7; REF-, Pin 8): Ensuring a stable power supply to AVDD is essential. The onboard reference (REF+ and REF-) provides a consistent and accurate reference voltage, key to maintaining the precision of analog outputs.

4. Output Filtering and Stability (AOUT1-AOUT4): Incorporating low-pass filters on each analog output is advisable to eliminate potential signal noise, ensuring stable and accurate control over environmental conditions.

5. Digital and Analog Ground Separation (DGND, Pin 9; AGND, Pin 23): Effective grounding is crucial for minimizing noise. Distinct grounding paths for digital and analog circuits significantly reduce potential interference, preserving signal quality.

Design Considerations:

- Physical Separation of Digital and Analog Sections: This strategy significantly reduces noise interference between digital and analog components, essential for maintaining signal accuracy.

- Decoupling Capacitors Near Power Inputs: Placing decoupling capacitors close to the DAC7734EC's power supply pins is critical for filtering out noise and stabilizing the voltage supply, ensuring reliable operation.

- Thermal Management Practices: Although the DAC7734EC is designed for low power consumption, adequate heat dissipation measures are necessary to maintain performance and longevity, especially in tightly packed or high-temperature environments.

- Signal Integrity Assurance: Careful routing of PCB traces for both digital (communication) and analog (output) signals is vital to prevent signal degradation and maintain high fidelity in control signals.

Integrating the DAC7734EC into an environmental control system for a greenhouse illustrates its capability to deliver precise and stable analog signals from digital inputs, emphasizing its utility in complex control applications. This implementation showcases the DAC7734EC's precision and adaptability, underscoring its value in systems requiring accurate manipulation of environmental conditions for optimal growth and sustainability.

DAC7734EC FAQ

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6. What is the process for return or replacement of DAC7734EC?

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 DAC7734EC we delivered, we will accept the replacement or return of the DAC7734EC 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 DAC7734EC.

(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