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DAC8775IRWFT
Texas Instruments
IC DAC 16BIT ANLG A/V-OUT 72QFN
1369 Pcs New Original In Stock
16 Bit Digital to Analog Converter 4 72-VQFN (10x10)
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5.0 / 5.0
- (261 Ratings)
DAC8775IRWFT
Product Overview
1430777
DiGi Electronics Part Number
DAC8775IRWFT-DGManufacturer
Texas Instruments
DAC8775IRWFT
Description
IC DAC 16BIT ANLG A/V-OUT 72QFNInventory
1369 Pcs New Original In Stock
16 Bit Digital to Analog Converter 4 72-VQFN (10x10)
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
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DAC8775IRWFT Technical Specifications
Category
Data Acquisition, Digital to Analog Converters (DAC)
Packaging
Cut Tape (CT) & Digi-Reel®
Series
DAC8775
Product Status
Active
DiGi-Electronics Programmable
Not Verified
Number of Bits
16
Number of D/A Converters
4
Settling Time
30µs
Output Type
Analog Current and Voltage
Differential Output
No
Data Interface
SPI
Reference Type
External, Internal
Voltage - Supply, Analog
12V ~ 36V
Voltage - Supply, Digital
2.7V ~ 5.5V
INL/DNL (LSB)
±12, ±1 (Max)
Architecture
String DAC
Operating Temperature
-40°C ~ 125°C (TA)
Package / Case
72-VFQFN Exposed Pad
Supplier Device Package
72-VQFN (10x10)
Mounting Type
Surface Mount
Base Product Number
DAC8775
Datasheet & Documents
Manufacturer Product Page
DAC8775IRWFT Specifications
HTML Datasheet
DAC8775IRWFT-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
3 (168 Hours)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
-296-45499-1-DG
DAC8775IRWFT-DG
296-45499-6
296-45499-1
296-45499-2
Standard Package
250
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
배송 과정에서 포장 검증이 철저하여 상품의 손상 가능성이 거의 없습니다.
de desembre 02, 2025
Overall, excellent speed in shipping combined with sustainable packaging makes DiGi Electronics trustworthy.
de desembre 02, 2025
DiGi Electronics supplies are dependable, and their staff is always ready with expert advice.
de desembre 02, 2025
The fast turnaround from order to delivery helped me meet tight deadlines.
de desembre 02, 2025
The website provides helpful recommendations based on browsing history.
de desembre 02, 2025
They provide excellent value—great prices and superb after-sales support.
de desembre 02, 2025
Quick delivery times for parts have decreased our equipment downtime significantly.
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Frequently Asked Questions (FAQ)
When replacing a legacy quad 16-bit DAC like the AD5754R with the DAC8775IRWFT in an industrial current-loop application, what are the critical design risks related to output architecture and power sequencing?
The DAC8775IRWFT uses a string DAC architecture with both analog current and voltage outputs, unlike the R-2R ladder in the AD5754R, which can affect linearity under dynamic loads. A key risk is improper power sequencing: the DAC8775IRWFT requires the analog supply (12V–36V) to be stable before or simultaneously with the digital supply (2.7V–5.5V) to avoid latch-up or output glitches. Additionally, its internal reference must be enabled via SPI before expecting accurate outputs—unlike some competitors that auto-start. Always implement a power-on reset circuit and validate startup behavior under brown-out conditions to prevent erroneous 4–20mA loop signals.
Can the DAC8775IRWFT safely drive capacitive loads above 100nF on its voltage outputs without oscillation, and what compensation techniques are recommended?
The DAC8775IRWFT’s voltage outputs are not inherently stable with capacitive loads >100nF due to limited output drive and lack of internal compensation. Driving large capacitive loads (e.g., long cables or filter capacitors) can cause ringing or sustained oscillation. To mitigate this, add a small series resistor (10–50Ω) between the DAC output and the load to isolate capacitance, followed by an RC snubber if needed. For precision applications, use a unity-gain buffer op-amp with high capacitive load capability. Always verify stability via transient response testing across the full temperature range (-40°C to 125°C), as phase margin degrades at extreme temperatures.
How does the DAC8775IRWFT’s ±12 LSB INL compare to competing devices like the LTC2664 in high-accuracy process control systems, and when might this limit system performance?
With a maximum INL of ±12 LSB, the DAC8775IRWFT is suitable for general-purpose industrial control but may fall short in high-precision applications (e.g., calibration standards or metrology) where the LTC2664 offers ±2 LSB INL. In a 16-bit system, ±12 LSB corresponds to ~183ppm of full-scale error, which can dominate system error budgets when combined with sensor and ADC inaccuracies. If your control loop requires <100ppm total error, consider calibrating each channel or selecting a higher-accuracy DAC. However, for typical PLC or actuator positioning tasks, the DAC8775IRWFT’s INL is acceptable, especially given its robust 12V–36V analog supply range and integrated diagnostics.
What are the reliability implications of operating the DAC8775IRWFT at its maximum junction temperature (125°C) in an enclosed industrial enclosure with poor airflow?
Operating the DAC8775IRWFT continuously at 125°C ambient (TA) pushes the junction temperature close to its absolute maximum, significantly accelerating electromigration and reducing long-term reliability. The 72-VQFN package has an exposed pad that must be properly soldered to a thermal plane for heat dissipation—without adequate copper area or airflow, thermal resistance (θJA) can exceed 30°C/W, causing self-heating. At 36V supply and full output load, power dissipation can reach ~1W, raising TJ beyond 150°C. To ensure MTBF, derate the operating temperature to ≤105°C, use a 2-layer or better PCB with thermal vias under the pad, and consider forced airflow or heatsinking in sealed enclosures. Monitor MSL 3 handling to avoid moisture-induced delamination during reflow.
Is the DAC8775IRWFT a drop-in replacement for the Maxim MAX5136 in a multi-channel SPI daisy-chain configuration, and what firmware changes are needed?
The DAC8775IRWFT is not a direct drop-in for the MAX5136 due to differences in SPI protocol and register mapping. While both support 4-channel 16-bit operation and SPI interfaces, the DAC8775IRWFT uses a 24-bit frame with specific command codes for channel selection, power-down modes, and internal reference control, whereas the MAX5136 uses a simpler 16-bit write format. Daisy-chaining is possible but requires reworking the firmware to handle the longer frame size and ensure proper CS (chip select) timing. Additionally, the DAC8775IRWFT lacks the MAX5136’s hardware clear pin, so implement a software reset sequence via SPI. Always validate signal integrity on SCLK and SDI lines, especially at high speeds, as the DAC8775IRWFT’s input capacitance may affect timing margins in long daisy chains.
Quality Assurance (QC)
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DAC8775IRWFT CAD Models
Texas Instruments DAC8775IRWFT PCB symbols & footprints
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