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DAC8555IPW
Texas Instruments
IC DAC 16BIT V-OUT 16TSSOP
2028 Pcs New Original In Stock
16 Bit Digital to Analog Converter 4 16-TSSOP
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5.0 / 5.0
- (437 Ratings)
DAC8555IPW
Product Overview
1420420
DiGi Electronics Part Number
DAC8555IPW-DGManufacturer
Texas Instruments
DAC8555IPW
Description
IC DAC 16BIT V-OUT 16TSSOPInventory
2028 Pcs New Original In Stock
16 Bit Digital to Analog Converter 4 16-TSSOP
Quantity
Minimum 1
Minimum 1
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DAC8555IPW Technical Specifications
Category
Data Acquisition, Digital to Analog Converters (DAC)
Packaging
Tube
Series
microPOWER™
Product Status
Active
DiGi-Electronics Programmable
Not Verified
Number of Bits
16
Number of D/A Converters
4
Settling Time
10µs
Output Type
Voltage - Buffered
Differential Output
No
Data Interface
SPI, DSP
Reference Type
External
Voltage - Supply, Analog
2.7V ~ 5.5V
Voltage - Supply, Digital
2.7V ~ 5.5V
INL/DNL (LSB)
±4, ±0.25
Architecture
String DAC
Operating Temperature
-40°C ~ 105°C
Package / Case
16-TSSOP (0.173", 4.40mm Width)
Supplier Device Package
16-TSSOP
Mounting Type
Surface Mount
Base Product Number
DAC8555
Datasheet & Documents
Manufacturer Product Page
DAC8555IPW Specifications
HTML Datasheet
DAC8555IPW-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
-DAC8555IPWG4-NDR
-DAC8555IPW-NDR
-296-19402-5
-DAC8555IPWG4
296-19402-5
-296-19402-5-DG
Standard Package
90
Alternative Parts
View DetailsPART 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
디지 일렉트로닉스는 배송 시간과 포장 모두 최고입니다. 매우 만족합니다.
de desembre 02, 2025
他們的服務讓我覺得很安心，產品品質始終如一。
de desembre 02, 2025
每次遇到問題，他們都能耐心幫助我解決，售後支持超讚！
de desembre 02, 2025
DiGi Electronics makes high-quality tech accessible thanks to their competitive prices.
de desembre 02, 2025
The consistency in quality makes DiGi Electronics my go-to brand for dependable technology.
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Frequently Asked Questions (FAQ)
Can the DAC8555IPW replace a DAC8554IPW in an existing 4-channel precision voltage output design without firmware or hardware changes?
Yes, the DAC8555IPW is a drop-in replacement for the DAC8554IPW in most applications, as both share identical pinouts, package (16-TSSOP), supply voltage ranges (2.7V–5.5V), and SPI interface timing. However, verify that your system can tolerate the DAC8555IPW’s slightly higher integral nonlinearity (±4 LSB vs. ±2 LSB on the DAC8554IPW), especially in high-accuracy calibration or test equipment. If your design relies on tighter INL for linearity-critical outputs, consider recalibrating or selecting a binned version—otherwise, for general industrial control, the substitution is safe and requires no hardware or firmware modifications.
What are the key risks when using the DAC8555IPW with a 3.3V microcontroller in a noisy industrial environment, and how can they be mitigated?
The primary risks include SPI communication errors due to ground bounce or EMI, and inaccurate analog outputs from power supply noise coupling into the reference or analog rails. Since the DAC8555IPW uses an external reference and has separate analog/digital supplies, ensure you use a low-noise, low-impedance reference (e.g., REF5025) and decouple both AVDD and DVDD with 100nF ceramic capacitors placed within 2mm of the pins. Route SPI lines away from high-current traces, use series termination resistors (22–33Ω), and consider adding a ground plane under the device. Also, avoid sharing digital return paths with high-speed logic to prevent ground shift errors in the 16-bit output.
How does the DAC8555IPW’s string DAC architecture impact glitch energy and output stability compared to R-2R ladder DACs like the AD5664?
The DAC8555IPW’s string DAC architecture inherently produces lower glitch energy during code transitions than R-2R types such as the AD5664 because it switches fewer internal nodes—typically just one resistor tap per transition. This makes it better suited for applications like waveform generation or servo control where voltage spikes during updates can cause instability. However, string DACs may exhibit slightly higher output impedance and are more sensitive to reference buffer settling. For best results, pair the DAC8555IPW with a fast, low-output-impedance reference buffer and allow sufficient settling time (≥10µs) after each write, especially when driving capacitive loads >100pF.
Is it safe to operate the DAC8555IPW at its maximum rated temperature (105°C) in a sealed enclosure with limited airflow, and what derating considerations apply?
While the DAC8555IPW is rated for operation up to 105°C junction temperature, sustained operation near this limit in a sealed enclosure increases the risk of long-term drift and reduced reliability. The 16-TSSOP package has limited thermal dissipation (θJA ≈ 100°C/W), so even modest power dissipation (e.g., 50mW) can raise the junction temperature significantly above ambient. To mitigate risk, maintain PCB copper pours connected to the exposed thermal pad (if used), monitor actual junction temperature using Tj = Ta + (Pd × θJA), and consider derating output current or reducing update rates to minimize self-heating. For mission-critical systems, add a small heatsink or venting, or select a device with better thermal performance like the DAC8734 in HTSSOP.
Can I use the DAC8555IPW to drive a 10kΩ load directly, or do I need an external buffer, and what happens if I omit it?
The DAC8555IPW includes buffered voltage outputs, so it can directly drive a 10kΩ load without an external op-amp under normal conditions. However, the output stage has limited current capability (typically ±5mA), and driving lower impedances (<5kΩ) or capacitive loads (>1nF) may cause instability, overshoot, or increased settling time beyond the specified 10µs. If your 10kΩ load is in parallel with significant capacitance (e.g., cable or filter caps), add a small series resistor (10–100Ω) at the output to isolate the DAC from capacitive reactance. For dynamic loads or precision applications, use a precision unity-gain buffer (e.g., OPA320) to preserve accuracy and ensure stable operation across temperature and code transitions.
Quality Assurance (QC)
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DAC8555IPW CAD Models
Texas Instruments DAC8555IPW PCB symbols & footprints
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