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Name: DAC8734SPFB
Brand: Texas Instruments
SKU: DAC8734SPFB
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 DAC8734SPFB

Part No.:: DAC8734SPFB

Manufacturer:: Texas Instruments

Package:: 48-TQFP

Datasheet:: DAC8734SPFB.pdf

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

In Stock:: 3998

Quantity:: Add To Cart

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DAC8734SPFB Specifications

Package/Case:
48-TQFP
Packaging:
Tray
Series:
-
ProductStatus:
Active
NumberofBits:
16
NumberofD/AConverters:
4
SettlingTime:
8µs (Typ)
OutputType:
Voltage - Buffered
DifferentialOutput:
No
DataInterface:
SPI
ReferenceType:
External
Voltage-SupplyAnalog:
4.75V ~ 24V, -4.75V ~ -18V
Voltage-SupplyDigital:
2.7V ~ 5.5V
INL/DNL(LSB):
±1 (Max), ±1 (Max)
Architecture:
R-2R
OperatingTemperature:
-40°C ~ 105°C

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DAC8734SPFB information

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DAC8734SPFB Typical application Circuitry

DAC8734SPFB

The DAC8734SPFB is a high-precision, quad-channel, 16-bit digital-to-analog converter (DAC) designed by Texas Instruments. It is renowned for its ability to provide accurate analog output voltages from digital input signals across four independent channels. This chip is particularly suited for applications requiring fine control over multiple analog signals simultaneously, such as in industrial automation, precision instrumentation, programmable logic controllers (PLCs), and data acquisition systems where detailed analog output is crucial.

Key Features and Parameters:

- Quad 16-bit DAC Channels: Offers four independent channels for detailed and precise analog output, enabling complex control schemes.

- Integrated Precision Reference: Ensures consistent and stable performance across various conditions, enhancing output accuracy.

- Flexible Serial Interface: Supports SPI, facilitating easy and efficient communication with microcontrollers or digital signal processors.

- Low Power Consumption: Ideal for applications where minimizing energy usage is critical, including portable devices.

- Wide Operating Voltage Range: Accommodates a broad spectrum of power supply requirements, adding versatility to system design.

Application Scenario: Utilizing the DAC8734SPFB in a precision temperature control system for industrial ovens, where it regulates the temperature by adjusting the power supply to heating elements based on digital input data.

Detailed Circuit Design:

Incorporating the DAC8734SPFB into a precision temperature control system involves meticulous planning regarding its pin configuration and system integration:

1. SPI Communication Setup (SDI, Pin 5; SCLK, Pin 6; SYNC, Pin 4): These pins should be connected to the SPI bus of the temperature control system's microcontroller. This setup is essential for transmitting digital temperature setpoints to the DAC8734SPFB, which are then converted into precise analog voltages to control the heating elements.

2. Analog Outputs for Temperature Control (VOUTA, Pin 15; VOUTB, Pin 14; VOUTC, Pin 13; VOUTD, Pin 12): Connect these pins to the control circuitry of the heating elements. The DAC8734SPFB's capability to provide distinct and accurate voltages on each channel allows for fine regulation of temperature across different zones of the industrial oven.

3. Power Supply and Grounding (AVDD, Pin 24; AGND, Pin 23): Supplying a stable and noise-free power source to AVDD is crucial for optimal DAC operation. Proper grounding through AGND is paramount to minimize noise and ensure the accuracy of the analog outputs.

4. Integrated Reference Voltage Configuration (REFIN/OUT, Pin 20): Utilizing the DAC8734SPFB's integrated precision reference voltage is key to achieving stable and accurate output voltages for precise temperature control. Ensuring that REFIN/OUT is properly configured and stable is crucial for the system's performance.

5. Output Filtering and Stability (VOUTA-D): Implementing low-pass filters on the outputs may be necessary to smooth the analog voltages and eliminate any potential high-frequency noise, ensuring precise control over the industrial oven's temperature.

Design Considerations:

- Isolation Between Digital and Analog Domains: Maintaining clear separation between the DAC8734SPFB's digital communication interface and the analog output paths is critical to prevent digital noise from affecting the analog signals.

- Decoupling Capacitors for Power Stability: Placing decoupling capacitors close to the DAC8734SPFB's power supply pins is vital for filtering out noise and stabilizing the power supply, ensuring consistent DAC performance.

- Thermal Management: While the DAC8734SPFB is designed for low power consumption, attention to thermal management within the circuit design is beneficial to prevent potential issues related to heat, especially in continuous or high-demand operation.

- Reference Voltage Stability: The precision of the temperature control system heavily relies on the stability and accuracy of the integrated reference voltage. Ensuring the DAC8734SPFB's reference voltage remains stable and accurate is fundamental for achieving reliable and precise temperature regulation.

By leveraging the DAC8734SPFB in a precision temperature control system for industrial ovens, one can harness its quad-channel, high-resolution output capability to produce accurate and controlled analog voltages, demonstrating its utility and precision in applications requiring detailed analog signal control for critical processes.

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6. What is the process for return or replacement of DAC8734SPFB?

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 DAC8734SPFB we delivered, we will accept the replacement or return of the DAC8734SPFB 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 DAC8734SPFB.

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

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(1)Inform us within 90 days

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