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HomeProductsIntegrated Circuits (ICs)Specialized ICsLT6653BHS6-2.5#TRPBF
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LT6653BHS6-2.5#TRPBF - Linear Technology / Analog Devices

Manufacturer Part Number
LT6653BHS6-2.5#TRPBF
Manufacturer
Linear Technology
Allelco Part Number
32D-LT6653BHS6-2.5#TRPBF
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
15,020 pcs available, New & Original
Parts Description
DAC91001
Data sheet
-
Category
Integrated Circuits (ICs) > Specialized ICs
RoHs Status
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In stock: 15020

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Specifications

LT6653BHS6-2.5#TRPBF Tech Specifications
Linear Technology / Analog Devices - LT6653BHS6-2.5#TRPBF technical specifications, attributes, parameters and parts with similar specifications to Linear Technology / Analog Devices - LT6653BHS6-2.5#TRPBF

Product Attribute Attribute Value
Part Number LT6653BHS6-2.5#TRPBF
Package DAC91001
Description DAC91001
Stock Condition Get 15020 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 LT6653BHS6-2.5#TRPBF compare to other precision voltage references in terms of initial accuracy and long-term drift, especially for high-reliability applications?
The LT6653BHS6-2.5#TRPBF offers a typical initial accuracy of ±0.04% and exhibits extremely low long-term drift of 2 ppm/°C, which is significantly better than many standard shunt references. When compared to alternatives like the LT1004 or MAX6126, this device provides superior stability over time and temperature, making it particularly suitable for industrial instrumentation and data acquisition systems where measurement integrity cannot be compromised. The combination of low noise (typically 3.8 µV RMS from 10 Hz to 10 kHz) and tight output regulation supports consistent system calibration across operational lifespans.
What are the key thermal considerations when using the LT6653BHS6-2.5#TRPBF in compact PCB designs, and how do its performance metrics behave under elevated ambient temperatures?
Operating the LT6653BHS6-2.5#TRPBF in confined spaces requires attention to thermal coupling and heat dissipation paths. Although it is a low-power device with a quiescent current of only 350 nA, localized heating near other dissipative components can still affect junction temperature. The device maintains specified performance up to 125°C junction temperature, but derating may be necessary in environments exceeding 70°C ambient. Its 2 ppm/°C temperature coefficient ensures minimal output variation during transient thermal events, which is critical in automotive or aerospace-grade systems where thermal cycling is common.
Can the LT6653BHS6-2.5#TRPBF be used in battery-powered IoT sensor nodes without compromising measurement accuracy due to supply variations?
Yes, the LT6653BHS6-2.5#TRPBF is well-suited for battery-powered applications such as IoT sensor nodes. With a supply voltage range of 3 V to 36 V, it operates reliably even as the battery discharges from full charge to low voltage. The reference’s ultra-low quiescent current of 350 nA minimizes power consumption, extending battery life. Furthermore, its high PSRR (Power Supply Rejection Ratio) of 90 dB at 1 kHz ensures that fluctuations in the input supply—common in energy harvesting or intermittent operation—do not degrade the 2.5 V output stability.
What happens if the LT6653BHS6-2.5#TRPBF experiences reverse polarity on its input, and what protection mechanisms should be implemented in the circuit design?
Reverse polarity protection must be explicitly designed into the system since the LT6653BHS6-2.5#TRPBF does not include internal ESD or reverse-voltage safeguards. Applying a negative voltage or exceeding the absolute maximum rating of -0.3 V to 40 V can damage the device. To mitigate risk, designers commonly place a series Schottky diode between the input source and the reference pin, clamping the voltage to within safe limits. Alternatively, a PFET-based ideal diode circuit can be used for lower forward voltage drop and reduced power loss, ensuring reliable operation in harsh electrical environments.
In what scenarios would the LT6653BHS6-2.5#TRPBF outperform a bandgap-based reference like the LM4040, and why might engineers choose it despite higher cost?
The LT6653BHS6-2.5#TRPBF surpasses bandgap references such as the LM4040 in applications requiring exceptional long-term stability, low noise, and precise initial accuracy. While the LM4040 offers similar nominal voltages, its typical initial tolerance is ±1%, and drift can reach 10–20 ppm/°C, whereas the LT6653BHS6-2.5#TRPBF achieves ±0.04% and 2 ppm/°C respectively. This makes it preferable in precision analog front ends, medical devices, and automated test equipment where calibration cycles are infrequent and traceability matters. The trade-off in unit cost is justified by reduced system-level calibration effort and improved yield.
How does the LT6653BHS6-2.5#TRPBF handle transient load conditions, and is it suitable for driving digital loads such as ADC reference inputs?
The LT6653BHS6-2.5#TRPBF exhibits excellent transient response due to its internal compensation and low output impedance, enabling stable performance even when connected directly to sensitive analog-to-digital converters. It can source or sink up to 5 mA without degradation in output accuracy, which is sufficient for most ADC reference loads. However, for faster settling in high-speed ADCs, a small bypass capacitor (e.g., 1 µF ceramic) placed close to the output improves phase margin and reduces peaking during step changes. Careful layout is essential to avoid ground loops or parasitic inductance affecting stability.
What are the implications of using the LT6653BHS6-2.5#TRPBF in a multi-reference system where multiple precision sources must track each other over temperature?
In multi-reference systems, such as those using both 2.5 V and 4.096 V references simultaneously, the LT6653BHS6-2.5#TRPBF’s tight 2 ppm/°C drift ensures minimal divergence between channels over time. Unlike resistor-divided references that rely on matching tolerances alone, this device maintains independent accuracy, reducing cross-channel error accumulation. Engineers benefit from using matched pairs of LT6653BHS6-2.5#TRPBF units from the same batch, further enhancing tracking performance in precision gain calibration or differential measurement architectures.
Why might an engineer choose the HS6 package variant of the LT6653BHS6-2.5#TRPBF over surface-mount options, and what are the thermal and mechanical trade-offs involved?
The HS6 package (SC70) is selected for space-constrained designs where board real estate is limited. Compared to larger SOT-23 packages, it offers a smaller footprint and lower profile, facilitating high-density layouts. However, its reduced copper pad area limits heat spreading, so thermal vias under the exposed pad are recommended when operating near upper temperature limits. Despite this, the device remains fully functional across -40°C to +125°C, and its hermetic sealing provides environmental robustness. The choice hinges on balancing size, reliability, and ease of soldering in automated assembly lines.
How does the LT6653BHS6-2.5#TRPBF compare to the LTZ1000 in terms of noise performance and complexity, and why might one prefer it for modern low-power designs?
The LT6653BHS6-2.5#TRPBF delivers significantly lower noise (3.8 µV RMS vs. ~10 µV RMS) and consumes far less power (350 nA vs. several mA) than the LTZ1000. While the LTZ1000 uses a buried Zener architecture for ultra-high stability, its higher current draw makes it impractical for portable or always-on systems. The LT6653BHS6-2.5#TRPBF achieves comparable drift and initial accuracy through advanced bandgap engineering and laser trimming, but in a much more efficient form factor. This makes it ideal for modern battery-operated or thermally sensitive applications where simplicity, size, and efficiency outweigh absolute historical benchmarking standards.
What precautions should be taken during PCB layout to ensure optimal performance of the LT6653BHS6-2.5#TRPBF, particularly regarding noise sensitivity and grounding?
Proper PCB layout is critical for preserving the LT6653BHS6-2.5#TRPBF’s precision characteristics. The output node should be kept short and isolated from noisy digital traces, with a ground plane directly beneath the device. A low-ESR, high-frequency decoupling capacitor (e.g., 10 nF ceramic) should be placed within 2 mm of the output pin to suppress high-frequency noise. Avoid routing sensitive feedback or sense lines near switching regulators or clock signals. Kelvin connections are unnecessary due to the shunt configuration, but minimizing loop area reduces susceptibility to EMI-induced errors in industrial settings.
Is the LT6653BHS6-2.5#TRPBF suitable for use in intrinsically safe or hazardous environments, and what certifications support its deployment in such applications?
The LT6653BHS6-2.5#TRPBF itself is not inherently certified for intrinsic safety, but its low power dissipation and stable behavior make it compatible with certified isolation barriers when properly integrated. Systems incorporating this reference into certified modules may achieve compliance with standards like IECEx or ATEX when combined with appropriate protection circuitry. Designers must verify that the total system meets relevant zone classifications, considering both electrical and thermal parameters. Its immunity to latch-up and robust ESD performance (HBM Class 2) support safer integration in Zone 2 or Division 2 environments.
How does the LT6653BHS6-2.5#TRPBF behave under rapid thermal transitions, and can it maintain accuracy during cold start-ups from sub-zero temperatures?
The LT6653BHS6-2.5#TRPBF operates reliably down to -40°C, and its output remains within specification across the full rated temperature range. During cold starts, internal carrier mobility changes minimally due to the precision bandgap architecture, resulting in consistent turn-on behavior without overshoot or delay. Unlike some older references that exhibit "cold start" instability, this device settles quickly and predictably, which is advantageous in automotive or outdoor sensing applications where sudden exposure to winter conditions occurs frequently.
What role does laser trimming play in achieving the LT6653BHS6-2.5#TRPBF’s initial accuracy, and how does it affect production yield and cost?
Laser trimming enables post-fabrication calibration of the internal resistor network, allowing the LT6653BHS6-2.5#TRPBF to meet the tight ±0.04% initial accuracy. This process compensates for process variations in semiconductor fabrication, ensuring consistent output voltage across production lots. While laser trimming increases manufacturing complexity and unit cost slightly, it eliminates the need for external calibration, reducing assembly time and improving system-level throughput. For high-volume applications requiring traceable precision, the investment pays off through higher first-pass yield and reduced field failures.
Can the LT6653BHS6-2.5#TRPBF be paralleled with another identical unit to increase current capacity, and what are the risks associated with doing so?
Paralleling two LT6653BHS6-2.5#TRPBF devices can extend current delivery capability, but requires careful implementation. Due to slight mismatches in output voltage even among matched parts, one unit may dominate current sharing, leading to uneven stress. To mitigate this, each device should have a small series resistor (e.g., 0.1 Ω) to balance currents. Alternatively, dedicated parallel-reference ICs with built-in current balancing are preferred. Without such measures, thermal runaway or premature aging of one channel can occur, undermining the intended redundancy or capacity boost.
How does the LT6653BHS6-2.5#TRPBF perform in systems with high-impedance downstream loads, and what impact does loading have on its accuracy?
As a shunt reference, the LT6653BHS6-2.5#TRPBF is designed to operate with very high effective load impedance, typically in the megaohm range. Even when connected across a high-impedance node, it regulates the voltage precisely without significant droop. Loading effects are negligible unless the external circuit draws current comparable to the reference’s own sourcing capability (up to 5 mA). In most precision analog circuits, where input stages present high impedance, the LT6653BHS6-2.5#TRPBF maintains its advertised accuracy without additional buffering.
What is the significance of the "#TRPBF" suffix in the LT6653BHS6-2.5#TRPBF part number, and how does it influence availability and lead times?
The "#TRPBF" suffix denotes tape-and-reel packaging with a protective moisture barrier film, suitable for automated pick-and-place assembly. This format is standard for high-volume manufacturing and improves handling in SMT lines. It also indicates compliance with JEDEC MSL 1 standards, meaning the device can withstand unlimited floor life under dry storage conditions. Distributors often stock TRPBF variants to meet just-in-time delivery demands, though they may carry slightly longer lead times than cut tape due to specialized packaging requirements.

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Customer Reviews

Evaluation: 10 Articles

  • 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.

  • Daic***K.
    Mar 23, 2026

    Very good. No issue after long time testing.

  • Kevi***.
    Mar 17, 2026

    Fast switching and stable output. Very satisfied with this IC

  • Daou***hekebkeb
    Jun 16, 2024

    I had a great experience purchasing items from Allelcoelec, I recommend

  • Uri ***al
    Jun 19, 2024

    Good comunication,
    Transpnt regarding the process and price.

  • Yaqu***l Ali
    Jun 19, 2024

    Providing reasonable prices, regular follow-up of orders, providing accurate and regular invoices, timely delivery of goods, excellent customer service and providing original goods and best quality materials.

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Linear Technology / Analog Devices

LT6653BHS6-2.5#TRPBF

Linear Technology / Analog Devices
32D-LT6653BHS6-2.5#TRPBF

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