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Home > Products > Integrated Circuits (ICs) > Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps > HA1-2420-2
Renesas Electronics America Inc
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HA1-2420-2

Manufacturer Part Number:
HA1-2420-2
Manufacturer / Brand
Renesas Electronics America Inc
Part of Description:
IC SAMPL/HOLD 1 CIRCUIT 14CERDIP
Datasheets:
HA1-2420-2(1).pdfHA1-2420-2(2).pdfHA1-2420-2(3).pdf
Lead Free Status / RoHS Status:
RoHS non-compliant
Stock Condition:
New original, 13117 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number HA1-2420-2
Manufacturer / Brand Renesas Electronics America Inc
Stock Quantity 13117 pcs Stock
Category Integrated Circuits (ICs) > Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
Description IC SAMPL/HOLD 1 CIRCUIT 14CERDIP
Lead Free Status / RoHS Status: RoHS non-compliant
RFQ HA1-2420-2 Datasheets HA1-2420-2 Details PDF
HA1-2420-2 Details PDF for FR.pdf
HA1-2420-2 Details PDF for IT.pdf
HA1-2420-2 Details PDF for ES.pdf
HA1-2420-2 Details PDF for DE.pdf
HA1-2420-2 Details PDF for KR.pdf
Voltage - Supply Span (Min) 24 V
Voltage - Supply Span (Max) 30 V
Voltage - Input Offset 2 mV
Supplier Device Package 14-CERDIP
Slew Rate 5V/µs
Series -
Package / Case 14-CDIP (0.300", 7.62mm)
Package Tube
Output Type -
Operating Temperature -55°C ~ 125°C
Number of Circuits 1
Mounting Type Through Hole
Gain Bandwidth Product 2.5 MHz
Current - Supply 3.5mA
Current - Output / Channel 15 mA
Current - Input Bias 40 nA
Base Product Number HA1-2420
Amplifier Type Sample and Hold

Packaging & ESD

Industry-standard static shielding packaging is used for electronic components.Anti-static, light-transparent materials allow easy identification of ICs and PCB assemblies.
The packaging structure provides electrostatic protection based on Faraday cage principles.This helps protect sensitive components from static discharge during handling and transportation.


All products are packed in ESD-safe anti-static packaging. Outer packaging labels include part number, brand, and quantity for clear identification. Goods are inspected prior to shipment to ensure proper condition and authenticity.

ESD protection is maintained throughout packing, handling, and global transportation. Secure packaging provides reliable sealing and resistance during transit. Additional cushioning materials are applied when required to protect sensitive components.

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Shipment charges： (Reference DHL and FedEX)
Weight(KG): 0.00kg-1.00kg Price(USD$) : USD$60.00
Weight(KG): 1.00kg-2.00kg Price(USD$) : USD$80.00
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HA1-2420-2 Product Details:

The HA1-2420-2 is a high-performance sample and hold amplifier integrated circuit (IC) manufactured by Intersil. It belongs to the linear amplifiers category, specifically in the instrumentation, operational amplifiers (op-amps), and buffer amplifiers subcategory.

This sample and hold amplifier is designed to address the challenges of acquiring and temporarily storing analog signals with high accuracy and fast response times. It features a slew rate of 5 V/s, a gain bandwidth product of 2.5 MHz, and a low input bias current of 40 nA, making it suitable for a wide range of applications that require precise signal sampling and holding.

The HA1-2420-2 operates on a dual supply voltage range of ±12 V to ±15 V and has a single circuit per package. It can provide an output current of up to 15 mA per channel, allowing it to drive various loads efficiently. The device is housed in a 14-pin ceramic dual in-line package (CERDIP) and is designed for through-hole mounting.

The key advantages of the HA1-2420-2 include its high-performance characteristics, low input offset voltage of 2 mV, and wide operating temperature range of -55°C to 125°C, making it suitable for use in various industrial, instrumentation, and data acquisition applications. It is also classified as RoHS non-compliant, containing lead.

In terms of compatibility, the HA1-2420-2 can be considered a direct replacement or alternative to similar sample and hold amplifier ICs from other manufacturers. Some equivalent or alternative models that may be considered include the LF398 from Texas Instruments, the AD583 from Analog Devices, and the HA-2420 from Intersil, which is the base part number for the HA1-2420-2.

HA1-2420-2 Key Technical Attributes

Manufacturer Part Number: HA1-2420-2

Manufacturer: Intersil

Base Part Number: HA-2420

HA1-2420-2 Packing Size

Package Type: 14-CERDIP

Mounting Type: Through Hole

Package / Case: 14-CDIP (0.300", 7.62mm)

Packaging: Tube

HA1-2420-2 Application

Used for sample and hold operations in various electronic signal processing.

HA1-2420-2 Features

The HA1-2420-2 is a high-performance sample and hold amplifier integrated circuit ideal for data acquisition and signal processing. This amplifier is designed for a variety of applications that require precise and stable voltage sampling. It features a slew rate of 5 V/s and a gain bandwidth product of 2.5 MHz. Its supply voltage ranges from ±12 V to ±15 V, and the operating temperature range is from -55°C to 125°C. Additionally, the current supply is 3.5 mA, with a current output per channel of 15 mA.

HA1-2420-2 Quality and Safety Features

The HA1-2420-2 has a Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating its robustness in varied environmental conditions. Despite being RoHS non-compliant due to lead content, it adheres to quality standards for specific applications exempt from RoHS compliance.

HA1-2420-2 Compatibility

The HA1-2420-2 is designed for through-hole mounting and is compatible with dual supply voltages, making it flexible for integration with various other components.

HA1-2420-2 Datasheet PDF

For detailed specifications and operational guidelines, refer to the datasheet of HA1-2420-2. Our website hosts the most authoritative datasheet, recommended for download directly from the current page to ensure accurate product deployment.

Quality Distributor

IC-Components is a premium distributor of Intersil products, ensuring top-quality and reliability. As the HA1-2420-2 undergoes vigorous quality checks, we recommend obtaining a quote through our website for the best deals and assurance in quality and support.

Frequently Asked Questions

What are the critical design considerations when integrating the HA1-2420-2 sample and hold amplifier into a high-accuracy data acquisition system, particularly regarding power supply stability and noise?
The HA1-2420-2 requires a stable dual supply (±12 V to ±15 V) with low noise and ripple, as supply fluctuations directly affect hold mode accuracy and droop rate. Engineers should use low-ESR bypass capacitors (e.g., 0.1 µF ceramic in parallel with 10 µF tantalum) placed close to the supply pins to minimize high-frequency noise. Additionally, ground plane integrity and isolation from digital switching circuits are essential to prevent coupling-induced errors during the sample-to-hold transition, especially given the device’s 2 mV input offset voltage and 40 nA input bias current, which can amplify with poor layout practices.
Can the HA1-2420-2 be used in single-supply applications, and if not, what modifications or alternative components would be required?
The HA1-2420-2 is not suitable for single-supply operation due to its specified dual supply range (±12 V to ±15 V) and internal biasing architecture, which assumes symmetrical rails for proper sample-and-hold functionality. Attempting single-supply use risks improper capacitor charging, output saturation, or degraded linearity. For single-supply systems, consider alternatives like the Analog Devices AD783 or Texas Instruments LF398, which are designed for single-supply operation with appropriate input level-shifting and reference circuitry.
What are the key differences between the HA1-2420-2 and modern CMOS-based sample-and-hold amplifiers in terms of long-term drift and hold capacitor selection?
Unlike CMOS-based S/H amplifiers (e.g., ADG5412 with integrated switches), the HA1-2420-2 uses bipolar input stages, resulting in higher input bias current (40 nA vs. typically <1 pA for CMOS). This necessitates lower-impedance hold capacitors and careful selection of dielectric materials (e.g., polypropylene or polystyrene) to minimize dielectric absorption and leakage-induced droop. Over temperature and time, the HA1-2420-2 may exhibit greater drift due to its bipolar construction, making it less ideal for ultra-long hold periods compared to CMOS alternatives with lower leakage.
Is the HA1-2420-2 a viable drop-in replacement for the legacy HA-2420 in existing through-hole designs, and what PCB layout factors must be re-evaluated?
The HA1-2420-2 is functionally equivalent to the base HA-2420 and can serve as a direct drop-in replacement in most through-hole applications using the 14-CERDIP package. However, engineers should verify that the existing PCB layout maintains adequate creepage and clearance distances, especially given the ceramic package’s higher thermal conductivity and potential for localized heating. Additionally, ensure that hold capacitor traces are shielded and kept short to preserve signal integrity, as the HA1-2420-2’s 2.5 MHz gain bandwidth product makes it sensitive to parasitic capacitance in high-speed sampling edges.
Under what environmental conditions might the HA1-2420-2 experience performance degradation, and how does its -55°C to 125°C operating range impact industrial deployment?
While the HA1-2420-2 supports an industrial temperature range (-55°C to 125°C), performance parameters such as input offset voltage (2 mV typical) and bias current (40 nA) can drift significantly at temperature extremes. In high-temperature environments (>100°C), increased leakage currents may accelerate droop during hold mode, requiring recalibration or thermal management. Conversely, at cryogenic temperatures, capacitor dielectric behavior changes may affect acquisition accuracy. For long-term industrial use, derating and periodic calibration are recommended, especially in aerospace or downhole applications where thermal cycling is frequent.
What precautions should be taken when replacing the HA1-2420-2 with a surface-mount equivalent in a redesign, considering signal integrity and thermal management?
Migrating from the HA1-2420-2’s 14-CERDIP through-hole package to a surface-mount alternative (e.g., SOIC or QFN) requires careful attention to parasitic inductance and capacitance in the hold capacitor path. Surface-mount layouts must minimize trace lengths to the hold capacitor and use ground shielding to reduce noise pickup. Additionally, the ceramic DIP package offers superior thermal conductivity; surface-mount plastic packages may require thermal vias or heatsinking if operating near 125°C. Always validate timing margins and droop performance in the new layout, as even minor parasitic effects can degrade sample-and-hold accuracy.
How does the HA1-2420-2’s slew rate of 5 V/µs limit its use in high-speed sampling applications, and what system-level trade-offs does this impose?
With a slew rate of only 5 V/µs, the HA1-2420-2 is unsuitable for sampling signals with fast transients or high-frequency components requiring rapid acquisition. For example, capturing a 10 V step would take at least 2 µs to settle, limiting effective sampling rates in precision systems. This constraint necessitates pre-filtering or slower signal conditioning stages to avoid slewing-induced distortion. Engineers targeting high-speed applications should consider faster alternatives like the Elantec EL2120 or modern integrated ADCs with built-in S/H functions that offer slew rates exceeding 1000 V/µs.
What are the risks of using the HA1-2420-2 in systems requiring RoHS compliance, and are there functionally equivalent RoHS-compliant alternatives available?
The HA1-2420-2 is non-RoHS compliant due to lead content in its 14-CERDIP package, making it unsuitable for new designs in regulated markets (e.g., EU, China). While it may be used under exemption in certain industrial or military applications, long-term sourcing and environmental compliance risks exist. No direct RoHS-compliant drop-in replacement from Intersil (now Renesas) is available. Engineers should evaluate alternatives such as the Linear Technology (now Analog Devices) LTC1298 or TI’s ADS7816, which integrate sample-and-hold functionality in RoHS-compliant packages, though with different pinouts and performance profiles requiring design adaptation.
How does the HA1-2420-2’s hold mode droop rate behave under varying load conditions, and what output buffering strategies are recommended for driving capacitive loads?
The HA1-2420-2 exhibits increased droop rate when driving capacitive or low-impedance loads due to limited output current (15 mA per channel) and internal feedback dynamics. To maintain hold accuracy, especially over extended periods, an external unity-gain buffer (e.g., precision op-amp like OP07) should be used to isolate the hold capacitor from downstream circuitry. Without buffering, load-induced current draw accelerates voltage decay, degrading measurement precision. Additionally, avoid placing large capacitive loads (>100 pF) directly on the output, as this can destabilize the amplifier during the sample phase.
What configuration and timing considerations are critical when using the HA1-2420-2 in multiplexed data acquisition systems with multiple channels?
In multiplexed systems, the HA1-2420-2 must be carefully synchronized with channel switching to avoid aperture uncertainty and signal crosstalk. The device requires sufficient acquisition time based on its 2.5 MHz bandwidth and 5 V/µs slew rate—typically >1 µs for 12-bit accuracy. Use a dedicated hold command signal with clean edges and ensure that the multiplexer settling time is accounted for before initiating the sample phase. Daisy-chaining multiple HA1-2420-2 devices requires matched clock distribution and independent hold capacitors to prevent inter-channel interference, especially in high-channel-count industrial DAQ systems.

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