AD9257 Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock
The AD9257 is a high-speed octal analog-to-digital converter from Analog Devices featuring 14-bit resolution at up to 65MSPS sample rate, designed for demanding medical imaging and communications applications. Operating from a 1.8V supply, it integrates 8 simultaneous ADC channels with LVDS serial output interfaces in a compact QFN package. Available from authorized Analog Devices distributors with worldwide in-stock shipping.
- Manufacturer
- Analog Devices
- Package
- Quad Flat No-Lead
- Pin Count
- 65
- Lifecycle
- ACTIVE
- Datasheet
- AD9257 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of AD9257?
- 14-bit resolution at 65MSPS across 8 simultaneous channels enables high-fidelity parallel signal acquisition for ultrasound and medical imaging arrays
- 1.8V analog and digital supply reduces total system power consumption compared to legacy 3.3V ADC solutions in multi-channel signal chains
- Integrated LVDS serial output interface minimizes PCB trace count and simplifies high-speed data routing to FPGAs in dense signal acquisition boards
- On-chip programmable gain and internal voltage reference eliminate several discrete components, reducing BOM cost in 8-channel receiver designs
- Compact QFN package with exposed thermal pad enables efficient heat dissipation in dense ultrasound probe front-end electronics
What is AD9257 used for?
The AD9257 is primarily used in medical ultrasound systems where 8 parallel receive channels must be digitized simultaneously at 65MSPS with 14-bit precision to reconstruct high-resolution tissue images. It is also suited for multi-channel software-defined radio receivers, phased-array radar front ends, and communications test equipment that require synchronized high-speed sampling across many channels from a single 1.8V supply. Industrial non-destructive testing (NDT) instruments benefit from its combination of low noise, wide dynamic range, and compact 8-channel integration.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the AD9257 datasheet?
AD9257 Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for AD9257?
Compatible alternatives and drop-in replacements for AD9257:
Frequently Asked Questions
How many ADC channels does the AD9257 integrate, and at what maximum sample rate do all channels operate simultaneously?
The AD9257 integrates 8 simultaneous ADC channels, each capable of sampling at up to 65MSPS at 14-bit resolution. All 8 channels sample in parallel, making it ideal for phased-array ultrasound probes and multi-channel radar receivers where simultaneous capture across all channels is essential to preserve phase relationships between signals. This architecture eliminates multiplexing artifacts that would otherwise limit dynamic range.
What supply voltage does the AD9257 require, and how does that affect system power budget in a 64-channel ultrasound front end?
The AD9257 operates from a 1.8V analog and digital supply. In a 64-channel ultrasound front end implemented with eight AD9257 devices, the combined ADC power draw is substantially lower than equivalent 3.3V ADC solutions, which is critical in portable and handheld ultrasound systems where battery capacity and thermal dissipation are tightly constrained. Each device typically dissipates around 300mW to 400mW at full 65MSPS operation across all 8 channels.
Which digital output interface does the AD9257 use to transfer data to an FPGA, and how does it reduce PCB complexity?
The AD9257 uses LVDS serial output pairs to transmit digitized data to an FPGA or signal processor. With LVDS, each channel is serialized so only 2 PCB traces per channel are required for the data output, compared to 14 parallel CMOS lines for raw 14-bit data. For an 8-channel device, this reduces the high-speed trace count from 112 parallel lines down to 16 differential LVDS pairs plus a clock pair, dramatically simplifying multilayer PCB routing.
For a portable NDT instrument, how does the AD9257 compare to using eight separate single-channel ADCs?
Integrating 8 channels in one AD9257 package reduces component count from 8 separate ICs to a single device, shrinking PCB area by more than 60% and cutting power supply decoupling complexity. Shared reference and clock distribution on-chip also improve channel-to-channel gain and timing matching to better than 0.5% and 50ps respectively, which is important for NDT beam-forming algorithms that rely on accurate inter-channel amplitude and phase calibration.
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Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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