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HomeProductsIntegrated Circuits (ICs)Data Acquisition - Digital to Analog Converters (DAC)DAC7624UB
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DAC7624UB - Texas Instruments

Manufacturer Part Number
DAC7624UB
Manufacturer
Texas Instruments
Allelco Part Number
32D-DAC7624UB
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
12,490 pcs available, New & Original
Parts Description
IC DAC 12BIT V-OUT 28SOIC
Package
28-SOIC
Data sheet
DAC7624UB.pdf
RoHs Status
ROHS3 Compliant
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In stock: 12490

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Specifications

DAC7624UB Tech Specifications
Texas Instruments - DAC7624UB technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - DAC7624UB

Product Attribute Attribute Value
Manufacturer Texas Instruments
Voltage - Supply, Digital 5V
Voltage - Supply, Analog ±5V
Supplier Device Package 28-SOIC
Settling Time 10µs
Series -
Reference Type External
Package / Case 28-SOIC (0.295', 7.50mm Width)
Package Tube
Output Type Voltage - Buffered
Product Attribute Attribute Value
Operating Temperature -40°C ~ 85°C
Number of D/A Converters 4
Number of Bits 12
Mounting Type Surface Mount
INL/DNL (LSB) ±1 (Max), ±1 (Max)
Differential Output No
Data Interface Parallel
Base Product Number DAC7624
Architecture R-2R

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

DAC7624UB Image
DAC7624UB (1)

Manufacturer Part Number

DAC7624UB

Manufacturer

Texas Instruments

Introduction

The DAC7624UB is a high-performance, low-power, quad, 12-bit digital-to-analog converter (DAC) from Texas Instruments. It features a parallel data interface, an external reference, and a buffered voltage output, making it suitable for a wide range of applications.

Product Features and Performance

12-bit resolution

4 independent DAC channels

10μs settling time

Buffered voltage output

Parallel data interface

External reference

±5V analog supply, 5V digital supply

INL/DNL of ±1 LSB (max)

R-2R architecture

Product Advantages

High-performance, low-power design

Flexible parallel data interface

Ability to drive capacitive loads with the buffered output

Wide operating temperature range of -40°C to 85°C

Key Reasons to Choose This Product

Reliable and robust performance from a trusted manufacturer

Scalable multi-channel design for various application needs

Cost-effective solution for precise analog output control

Easy integration with microcontrollers and other digital systems

Quality and Safety Features

Rigorous quality control and testing procedures

Compliance with industry safety standards

Robust and reliable design for long-term operation

Compatibility

The DAC7624UB is compatible with a wide range of microcontrollers, processors, and digital systems that require precise analog output control.

Application Areas

Industrial automation and control systems

Test and measurement equipment

Medical instrumentation

Audio and video signal processing

Servo control systems

Product Lifecycle

The DAC7624UB is an active product, and there are no plans for discontinuation at this time. Texas Instruments offers equivalent or alternative models, such as the DAC8544 and DAC8564, which may provide similar or enhanced features depending on the specific application requirements. If you have any questions or need further assistance, please contact our sales team through our website.

Frequently Asked Questions(FAQ)

What are the key architectural trade-offs when using the DAC7624UB in a precision industrial control system?
The DAC7624UB employs an R-2R ladder architecture with buffered voltage outputs, which provides stable monotonic behavior and low glitch energy—critical for control loops sensitive to transient disturbances. However, this architecture inherently limits dynamic performance; with a 10µs settling time to ±½ LSB, it is unsuitable for high-speed waveform generation. The external reference requirement adds design flexibility but introduces dependency on reference stability, especially under ±5V analog supply variations. Engineers must balance this against the need for four independent 12-bit channels in compact 28-SOIC packaging, where thermal coupling between outputs can affect long-term accuracy if power dissipation is not managed.
How does the DAC7624UB compare to a delta-sigma DAC in a multi-channel data acquisition front end?
Unlike delta-sigma DACs that excel in high-resolution audio or low-frequency measurement with oversampling and noise shaping, the DAC7624UB’s R-2R structure delivers deterministic settling behavior and lower latency—advantages in real-time control applications like motor positioning or valve actuation. While delta-sigma devices may offer better DC accuracy and built-in digital filtering, they typically suffer from group delay and require complex anti-imaging filters. The DAC7624UB’s parallel interface further enables synchronized updates across all four channels, a feature often missing in serial delta-sigma alternatives, making it preferable when timing alignment between outputs is critical.
Can the DAC7624UB operate reliably in a ±12V analog supply environment despite its ±5V specification?
No, the DAC7624UB is strictly rated for ±5V analog supply rails. Applying ±12V exceeds the absolute maximum ratings and risks permanent damage to the internal output amplifiers and reference circuitry. Even if the reference voltage is scaled appropriately, the output stage transistors and ESD structures are not designed to withstand such overvoltage conditions. For higher-voltage applications, a level-shifting buffer or a different DAC with wider supply tolerance must be used.
What impact does the 168-hour MSL-3 rating have on assembly and rework processes for the DAC7624UB?
The moisture sensitivity level (MSL) of 3 means the DAC7624UB can be exposed to ambient conditions for up to 168 hours after dry packaging is opened before requiring baking. This allows standard pick-and-place operations without immediate time pressure but mandates controlled humidity during storage and assembly. During rework, localized heating must stay within the 260°C peak reflow limit to avoid delamination or internal bond wire damage. Failure to observe MSL-3 protocols may result in popcorning or latent reliability issues in high-humidity operating environments.
How should the external reference be configured to maximize linearity in the DAC7624UB?
Since the DAC7624UB uses an external reference, its INL and DNL performance (±1 LSB max) are directly influenced by reference noise, drift, and output impedance. A low-noise, low-drift reference such as the REF5025 (2.5V, ±0.05% initial accuracy) with a bypass capacitor (≥1µF ceramic) placed close to the REF pin minimizes high-frequency perturbations. The reference buffer should have sufficient drive strength to maintain stability under dynamic code transitions—especially important given the 10µs settling requirement. Avoid sharing the reference with high-current digital loads to prevent ground bounce-induced errors.
Is the DAC7624UB suitable for bipolar output ranges without additional circuitry?
The DAC7624UB provides unipolar voltage outputs relative to ground when using a single external reference. To achieve bipolar outputs (e.g., ±5V), an external op-amp summing configuration is required to offset the DAC output. For example, a precision op-amp can sum the DAC output with a fixed negative voltage derived from a second reference or divider. This adds complexity and error sources (offset, gain drift), so system-level calibration may be necessary to maintain 12-bit accuracy across temperature.
How does channel-to-channel isolation in the DAC7624UB affect multi-axis motion control designs?
While the DAC7624UB integrates four independent DACs in one package, they share a common ground and power supply, leading to potential crosstalk via substrate coupling or supply rail modulation—particularly during simultaneous code transitions. In multi-axis servo systems, this can manifest as coupled disturbances between axes. Mitigation includes staggered update timing via the parallel interface, decoupling each output with RC filters, and ensuring low-impedance grounding. For high-isolation requirements, discrete DACs with separate references may be preferable despite increased board area.
What are the implications of the 10µs settling time when driving capacitive loads with the DAC7624UB?
The specified 10µs settling time assumes a resistive load (typically 2kΩ || 100pF). Driving heavier capacitive loads (>500pF) without compensation can cause overshoot or ringing due to the output amplifier’s limited phase margin. Adding a small series resistor (10–100Ω) between the DAC output and load isolates the amplifier from the capacitor, improving stability. However, this increases the effective RC time constant, potentially extending settling time beyond 10µs—requiring validation in the target application with actual load conditions.
Can the DAC7624UB be used in a ratiometric measurement system where the reference tracks the sensor excitation voltage?
Yes, but with caution. The DAC7624UB supports external reference input, enabling ratiometric operation if the reference voltage is derived from the same supply driving the sensor (e.g., a strain gauge bridge). This cancels out supply drift effects in the measurement chain. However, the DAC’s output is not inherently ratiometric—its transfer function assumes a stable reference. Any noise or ripple on the shared excitation/reference line will directly modulate the DAC output. Use a low-noise LDO and star grounding to minimize interference.
How does temperature variation from -40°C to 85°C affect the long-term accuracy of the DAC7624UB in field deployments?
Over its full operating range, the DAC7624UB’s gain and offset drift—though not explicitly specified—are dominated by the external reference and output buffer characteristics. Internal matching of the R-2R network ensures good relative accuracy, but absolute output may shift by several millivolts due to thermal gradients across the 28-SOIC package. In outdoor or industrial environments, periodic system calibration or selection of a reference with low tempco (<5 ppm/°C) is recommended to maintain 12-bit effective resolution. Thermal management, such as avoiding adjacent high-power components, further reduces drift.
What interface timing considerations are critical when using the parallel bus of the DAC7624UB in a microcontroller-driven system?
The parallel interface requires careful attention to setup and hold times relative to the WR (write) signal, especially at higher clock frequencies. With no internal latch enable hysteresis, glitches on address or data lines during transitions can cause unintended writes. Use Schmitt-trigger inputs on the MCU side and minimize trace lengths to reduce propagation skew. For systems updating all four channels simultaneously, ensure the WR pulse width meets the minimum specification (typically 50 ns) and that data lines remain stable until the falling edge. Asynchronous updates risk partial code corruption.
How does the DAC7624UB compare to the DAC8830 in terms of channel density and power efficiency for battery-powered instrumentation?
The DAC7624UB offers four 12-bit channels in a single 28-SOIC package, whereas the DAC8830 provides a single 16-bit channel in a smaller 8-SOIC. For multi-channel, moderate-resolution applications like portable test equipment, the DAC7624UB reduces component count and board space. However, its ±5V analog supply and higher quiescent current make it less efficient than the DAC8830’s single 2.7V to 5.5V operation. If 12-bit resolution suffices and power budget is tight, the DAC7624UB remains viable only if dual supplies are already present; otherwise, a modern low-voltage quad DAC may offer better integration.
Are there known errata or application-specific limitations for the DAC7624UB that aren’t covered in the datasheet?
While Texas Instruments maintains the DAC7624UB as a mature, stable product with no active errata, real-world usage reveals that simultaneous switching of all four channels can induce ground bounce sufficient to momentarily perturb the reference input if bypassing is inadequate. This manifests as minor code-dependent glitches during full-scale transitions. Best practice includes placing a 0.1µF ceramic capacitor within 2mm of the REF pin and using a ground plane with low inductance. Additionally, long output traces without termination may cause reflections in high-impedance loads—series termination resistors help dampen this effect.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments DAC7624UB

Product Attribute DAC7624UBG4 DAC7624UB/1K DAC7624PB DAC7624U/1KG4
Part Number DAC7624UBG4 DAC7624UB/1K DAC7624PB DAC7624U/1KG4
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Number of Bits - 16 8 14
Differential Output - Yes No -
Data Interface - LVDS - Parallel I²C LVDS - Parallel, Parallel
Voltage - Supply, Analog - 3.14V ~ 3.46V 11.4V ~ 16.5V 3V ~ 3.6V
Series - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Mounting Type - Surface Mount Through Hole Surface Mount
Reference Type - External, Internal External External, Internal
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Number of D/A Converters - 4 4 -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Voltage - Supply, Digital - 1.14V ~ 1.26V 11.4V ~ 16.5V 1.65V ~ 3.6V
Output Type - Current - Unbuffered Voltage - Buffered -
Settling Time - 10ns (Typ) 4.5µs -
INL/DNL (LSB) - ±4, ±2 ±1 (Max), ±1 (Max) -
Base Product Number - DAC34H84 MAX500 ADS62P42
Architecture - Current Source R-2R Pipelined
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C

DAC7624UB Datasheet PDF

Download DAC7624UB pdf datasheets and Texas Instruments documentation for DAC7624UB - Texas Instruments.

HTML Datasheet
Cylindrical Battery Holders.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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DAC7624UB Image

DAC7624UB

Texas Instruments
32D-DAC7624UB

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