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Name: DAC904E/2K5G4
Brand: Texas Instruments
SKU: DAC904E/2K5G4
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 DAC904E/2K5G4

Part No.:: DAC904E/2K5G4

Manufacturer:: Texas Instruments

Package:: 28-TSSOP (0.173, 4.40mm Width)

Datasheet:: DAC904E/2K5G4.pdf

Description:: IC DAC 14BIT A-OUT 28TSSOP

In Stock:: 3393

Quantity:: Add To Cart

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DAC904E/2K5G4 Specifications

Package/Case:
28-TSSOP (0.173, 4.40mm Width)
Packaging:
Tape & Reel (TR)
Series:
SpeedPlus™
ProductStatus:
Obsolete
NumberofBits:
14
NumberofD/AConverters:
1
SettlingTime:
30ns (Typ)
OutputType:
Current - Unbuffered
DifferentialOutput:
Yes
DataInterface:
Parallel
ReferenceType:
External, Internal
Voltage-SupplyAnalog:
2.7V ~ 5.5V
Voltage-SupplyDigital:
2.7V ~ 5.5V
INL/DNL(LSB):
±3, ±2.5
Architecture:
Current Source
OperatingTemperature:
-40°C ~ 85°C

DAC904E/2K5G4 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including DAC904E/2K5G4 price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for DAC904E/2K5G4 to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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DAC904E/2K5G4 information

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DAC904E/2K5G4 Typical application Circuitry

DAC904E 2K5G4

The DAC904E/2K5G4 is a sophisticated, high-speed digital-to-analog converter (DAC) fabricated by Texas Instruments. Characterized by its 14-bit resolution, this device is adept at transforming digital signals into high-precision analog voltages or currents. It's particularly esteemed for its ability to handle rapid data rates, making it an essential component in systems where swift and accurate signal processing is paramount.

Distinctive Attributes and Specifications:

- 14-Bit Resolution: This granularity ensures that the DAC904E/2K5G4 can produce analog outputs with a high degree of accuracy, crucial for applications demanding precise signal modulation and generation.

- High-Speed Capability: With a conversion rate that can reach up to 165 MSPS (Mega Samples Per Second), this DAC is well-suited for scenarios that require fast signal dynamics.

- Single 5V Operation: The DAC operates on a 5V power supply, streamlining power management within the system and reducing the necessity for complex power supply configurations.

- Differential Output Configuration: Offering differential current outputs enhances the device's ability to drive subsequent stages directly and improves signal integrity by reducing susceptibility to noise.

- Efficient Power Usage: Designed with power efficiency in mind, the DAC904E/2K5G4 is ideal for use in both stationary and portable systems where power conservation is critical.

Application Example: The DAC904E/2K5G4 excels in a direct digital synthesis (DDS) system, which is instrumental in generating accurate and stable frequency-agile waveforms. Such systems are widely used in communication, radar, and signal processing applications where waveform integrity is crucial.

Circuit Design Methodology:

1. Digital Input Configuration (DB0-DB13, Pins 3-16): These pins are responsible for receiving the digital data to be converted. In a DDS application, a stream of digital waveform data, representing the desired output signal, is fed into these inputs from a digital signal processor (DSP) or a field-programmable gate array (FPGA).

2. Clock Input Connection (CLK, Pin 2): This pin is vital for defining the conversion rate of the DAC. A high-precision clock source is connected here to synchronize the data conversion process with the rest of the system, ensuring timely and accurate waveform generation.

3. Analog Output Delivery (IOUT and IOUTB, Pins 18 and 17): The converted analog signal is provided through these differential outputs. To transform the current output into a voltage suitable for further processing or direct use, an external operational amplifier configured for differential-to-single-ended conversion or a transformer might be utilized.

4. Reference Voltage Setup (REFLO and REFHI, Pins 1 and 24): REFLO often ties to the system ground, while REFHI connects to a precision reference voltage. The magnitude of this reference voltage influences the full-scale output of the DAC, playing a critical role in signal amplitude calibration.

5. Power Supply Implementation (AVDD, Pin 23; DGND and AGND, Pins 22, 19, 20): A stable +5V supply to AVDD ensures the DAC's proper operation. Good grounding practices, including the separation of digital and analog grounds, are crucial to minimize noise and interference, thereby preserving signal fidelity.

Design Considerations:

- Minimization of Noise: Strategic PCB layout to mitigate noise interference, particularly in the digital to analog conversion pathways, is essential for maintaining output signal purity.

- Decoupling for Power Stability: Employing decoupling capacitors close to the AVDD pin is crucial to smooth the power supply and filter out transient spikes that could compromise DAC performance.

- Heat Dissipation: Given the potential for thermal buildup at high conversion rates, incorporating adequate thermal management solutions is advisable to maintain consistent DAC performance.

- Output Signal Conditioning: Depending on the application, integrating filtering circuits at the DAC's output may be necessary to remove unwanted spectral components and to ensure the integrity of the generated waveform.

- Reference Voltage Precision: The DAC904E/2K5G4's output accuracy is significantly dependent on the stability and accuracy of the reference voltage. Utilizing a high-quality, stable reference is imperative for optimal performance.

Incorporating the DAC904E/2K5G4 in a DDS system underscores its capability to deliver high-fidelity analog outputs from digital inputs efficiently, showcasing its applicability in sophisticated signal generation and communication systems where precision and speed are crucial.

DAC904E/2K5G4 FAQ

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6. What is the process for return or replacement of DAC904E/2K5G4?

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 DAC904E/2K5G4 we delivered, we will accept the replacement or return of the DAC904E/2K5G4 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 DAC904E/2K5G4.

(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