HV257 Microchip Integrated Circuit (Quad Flat Packages) In Stock
HV257 is a 32-channel high-voltage sample-and-hold amplifier array supporting rail voltages up to ±150 V with low leakage current, designed for precision analog signal acquisition and ultrasound applications. It integrates 32 independent S/H channels in a QFP package for compact system integration. Available from stock worldwide with fast shipping.
- Manufacturer
- Microchip
- Package
- Quad Flat Packages
- Pin Count
- 100
- Lifecycle
- ACTIVE
- Datasheet
- HV257 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of HV257?
- 32 independent sample-and-hold channels for parallel analog signal acquisition
- High-voltage rail support up to ±150 V for ultrasound and industrial applications
- Low hold-mode droop rate ensuring signal integrity over extended hold periods
- Compact QFP package enabling high channel density on a single PCB
- Wide operating temperature range for industrial and medical system environments
- Fast acquisition time per channel supporting real-time signal processing pipelines
What is HV257 used for?
The HV257 is primarily used in medical ultrasound front-end circuits, where 32 parallel sample-and-hold channels capture echo signals from transducer arrays at high voltage levels up to ±150 V. It also serves in industrial non-destructive testing (NDT) equipment and multi-channel data acquisition systems requiring simultaneous high-voltage analog sampling. The device's compact QFP footprint and high channel count enable dense integration in phased-array imaging and sonar systems.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
What are equivalent replacements for HV257?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many sample-and-hold channels does the HV257 provide, and what voltage rails does it support?
The HV257 integrates 32 independent sample-and-hold channels and supports high-voltage rails up to ±150 V, making it suitable for ultrasound transducer front-ends and high-voltage analog data acquisition systems requiring simultaneous multichannel sampling.
In which medical imaging application does the HV257 32-channel architecture offer a significant design advantage?
In phased-array ultrasound imaging systems, the HV257's 32 parallel channels simultaneously capture echo signals from individual transducer elements at up to ±150 V, eliminating the need for 32 discrete sample-and-hold components and substantially reducing PCB footprint and BOM complexity.
What package type does the HV257 use, and how does this affect board space in multi-channel systems?
The HV257 comes in a Quad Flat Package (QFP), which consolidates 32 high-voltage sample-and-hold channels into a single compact footprint, freeing significant board area compared to discrete implementations across multiple smaller ICs or through-hole components.
Is the HV257 a suitable drop-in alternative when a design currently uses multiple discrete high-voltage S/H ICs?
Yes. By integrating 32 channels rated to ±150 V in one QFP device, the HV257 replaces multiple single- or dual-channel discrete sample-and-hold ICs, reducing component count, solder joints, and board area while maintaining per-channel signal fidelity over the full voltage range.
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