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Home Products Integrated Circuits (ICs)Specialized ICs~~LTC2908CDDB~~

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LTC2908CDDB - Linear Technology / Analog Devices

Name: Linear Technology / Analog Devices LTC2908CDDB
Brand: Linear Technology / Analog Devices
SKU: LTC2908CDDB
Availability: InStock
Rating: 5 (7 reviews)

Manufacturer Part Number: LTC2908CDDB

Manufacturer: Linear Technology

Allelco Part Number: 32D-LTC2908CDDB

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 10,700 pcs available, New & Original

Parts Description: DAC91001

Data sheet: -

Category: Integrated Circuits (ICs) > Specialized ICs

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In stock: 10700

Specifications

LTC2908CDDB Tech Specifications
Linear Technology / Analog Devices - LTC2908CDDB technical specifications, attributes, parameters and parts with similar specifications to Linear Technology / Analog Devices - LTC2908CDDB

Product Attribute	Attribute Value
Part Number	LTC2908CDDB
Package	DAC91001
Description	DAC91001
Stock Condition	Get 10700 pcs available quantity at Allelco
Payment	PayPal / TT / Credit Card / Western Union
Allelco Certifications	ESD / ISO 9001 / ISO 13485 / ISO 28000

Product Attribute	Attribute Value
Manufacturer	Linear Technology
RoHs Status	-
Warranty	100% Perfect Functions
Transport port	Hong Kong
Shipping by	DHL / FedEx / UPS / TNT / SF Express
RFQ Email	info@allelco.com

Frequently Asked Questions(FAQ)

How does the LTC2908CDDB compare to other voltage supervisors in terms of supply current and monitoring accuracy under varying load conditions?: The LTC2908CDDB draws only 3.5μA typical supply current, making it highly efficient for battery-powered applications where power consumption is critical. Unlike many discrete or higher-power ICs, it maintains ±2% monitoring accuracy across a wide temperature range (-40°C to +85°C), ensuring reliable reset signaling even when system loads fluctuate. This combination allows designers to achieve both long battery life and robust system stability without sacrificing precision.

Can the LTC2908CDDB be used with multiple supply rails in a mixed-voltage system without additional level-shifting circuitry?: Yes, the LTC2908CDDB supports multiple input thresholds (configurable via external resistors) that can monitor different supply rails independently. Its open-drain outputs are compatible with logic levels ranging from 1.6V to 5.5V, enabling direct interface with various microcontrollers and FPGAs without requiring separate level translators. This flexibility simplifies board layout and reduces component count in systems such as IoT devices or portable instrumentation.

What happens during power-up sequencing if two supplies cross their respective threshold voltages at slightly different times?: The LTC2908CDDB uses a precise internal comparator and hysteresis to ensure deterministic output behavior. If one rail reaches its threshold before another, the device will assert the RESET signal corresponding to the first-responding rail and hold it until all monitored rails meet their thresholds simultaneously. This prevents spurious resets during non-uniform power-up events and supports asynchronous rail sequencing common in multi-voltage designs.

Is the LTC2908CDDB suitable for automotive applications requiring AEC-Q100 compliance?: No, the LTC2908CDDB is not specified for automotive environments. It operates over an industrial temperature range (-40°C to +85°C), which is insufficient for full automotive qualification (typically -40°C to +125°C). Additionally, its package (SOT-23-6) lacks the robustness needed for high-vibration or extended thermal cycling conditions typical in automotive systems. For automotive use, engineers should select components explicitly qualified to AEC-Q100 Grade 2 or higher.

How does the propagation delay of the LTC2908CDDB affect system responsiveness during brownout events?: The LTC2908CDDB has a maximum propagation delay of 100μs between supply crossing the threshold and the reset signal assertion. While this is fast enough for most general-purpose applications, it may introduce latency in safety-critical systems requiring sub-50μs response. Designers must account for this delay when coordinating with downstream logic that depends on immediate reset activation during rapid voltage dips.

Can the LTC2908CDDB monitor more than two voltage rails using external feedback networks?: No, the LTC2908CDDB is limited to monitoring exactly two voltage rails via its two dedicated input channels. Each channel requires an independent resistive divider connected to the VDD supply being monitored. To supervise more than two rails, engineers must cascade multiple LTC2908CDDB units or choose a supervisor IC with greater channel count—such as the LTC2937, which offers four independent monitoring inputs.

What design considerations are necessary when using the LTC2908CDDB near high-noise switching regulators?: When placed close to switching regulators, noise coupling into the monitored rails can cause false triggering. It is recommended to place the resistor divider network as close as possible to the LTC2908CDDB inputs and route traces away from noisy nodes. Adding a small ceramic capacitor (e.g., 100nF) directly at the monitored node can help filter high-frequency transients without significantly affecting threshold detection due to the device’s inherent immunity to fast glitches through its comparator architecture.

Does the LTC2908CDDB support manual reset functionality or push-button control?: No, the LTC2908CDDB does not include a manual reset input or push-button interface. Its operation is strictly voltage-dependent. To implement manual reset capability, an external push-button circuit must be added alongside the supervisor, typically by tying the RESET line to ground momentarily via a switch while accounting for debouncing and potential race conditions with automatic reset assertions.

How does the LTC2908CDDB handle undervoltage lockout (UVLO) on its own VDD pin?: The LTC2908CDDB monitors only the external supply rails connected to its dedicated inputs, not its own internal power supply. Therefore, it provides no protection against internal regulator failure or UVLO on its VDD pin. If the IC itself loses power, its outputs will float, potentially leading to undefined states. Designers must ensure stable VDD using a separate regulator or include a secondary supervisor to guard against total system collapse.

What is the impact of PCB trace resistance on threshold accuracy when using long leads with the LTC2908CDDB?: Significant trace resistance—especially in low-impedance monitoring scenarios—can create voltage drops that alter the actual voltage seen at the supervisor’s input relative to the source. For example, a 1Ω lead resistance with a 10kΩ divider and 100mA load could introduce up to 10mV error. Using Kelvin-sensing connections or placing dividers near the load minimizes this effect and preserves the intended threshold precision of the LTC2908CDDB.

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Customer Reviews

Evaluation: 10 Articles

Nikh***ech

Aug 13, 2026

Great low-power MCU for portable equipment. Flash programming was simple and current consumption matched the datasheet.
Embe***dMotion

Aug 5, 2026

Purchased this DSP controller for a motor control application. Stable processing performance and very good response under varying loads.
FPGA***dio

Jul 30, 2026

This FPGA handled our logic design without any surprises. Configuration completed quickly and timing met the project requirements.
Nord***mbedded

Jul 20, 2026

Reliable FPGA with predictable behavior. Configuration and testing went smoothly, making development faster than expected.
Arch***ct

Jul 15, 2026

Used this device in a communication signal processing board. Stable timing and no unexpected issues during implementation.
FPGA***lorer88

Jul 7, 2026

The FPGA works properly and all functions operate as expected. Documentation required some additional research, but overall it is a usable device for smaller signal processing projects.
Nath***oleman

Jun 29, 2026

Used this sensor component in an industrial automation setup. Detection accuracy was consistent and installation was straightforward.
Emil***rperTech

Jun 23, 2026

Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.
Liam***terTech

Jun 15, 2026

Used this CPLD in a logic control project. Programming was straightforward and signal timing matched the design requirements.
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.

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Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

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Common Countries Logistic Time Reference
Region	Country	Logistic Time(Day)
America	United States	5
America	Brazil	7
Europe	Germany	5
	United Kingdom	4
	Italy	5
Oceania	Australia	6
Oceania	New Zealand	5
Asia	India	4
Asia	Japan	4
Middle East	Israel	6

DHL & FedEx Shipment Charges Reference
Shipment charges(KG)	Reference DHL(USD$)
0.00kg-1.00kg	USD$30.00 - USD$60.00
1.00kg-2.00kg	USD$40.00 - USD$80.00
2.00kg-3.00kg	USD$50.00 - USD$100.00

Note:: The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

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ISO 9001: 2015
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LTC2908CDDB

Linear Technology / Analog Devices
32D-LTC2908CDDB

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Please refer to the English Version as our Official Version.Return

LTC2908CDDB - Linear Technology / Analog Devices

Specifications

Frequently Asked Questions(FAQ)

Customers Also Interested in

Recommended Products

Customer Reviews

Evaluation: 10 Articles

Great low-power MCU for portable equipment. Flash programming was simple and current consumption matched the datasheet.

Purchased this DSP controller for a motor control application. Stable processing performance and very good response under varying loads.

This FPGA handled our logic design without any surprises. Configuration completed quickly and timing met the project requirements.

Reliable FPGA with predictable behavior. Configuration and testing went smoothly, making development faster than expected.

Used this device in a communication signal processing board. Stable timing and no unexpected issues during implementation.

The FPGA works properly and all functions operate as expected. Documentation required some additional research, but overall it is a usable device for smaller signal processing projects.

Used this sensor component in an industrial automation setup. Detection accuracy was consistent and installation was straightforward.

Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.

Used this CPLD in a logic control project. Programming was straightforward and signal timing matched the design requirements.

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