AD9751AST

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AD9751AST

+Nomenclature

IC DAC 10BIT 300MSPS 48-LQFP

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Spécifications

Attribut Valeur
Package Bag
Series TxDAC+®
ProductStatus Obsolete
Package/Case 48-LQFP
SupplierDevicePackage 48-LQFP (7x7)

Présentation

Description

The AD9751AST is a 10-bit, 125 MSPS digital-to-analog converter (DAC) from Analog Devices, designed for high-speed signal generation. It features a current-output architecture with a 2x interpolation filter, reducing input data rate requirements.
Key specifications:
- Resolution: 10 bits
- Sampling Rate: Up to 125 MSPS
- Output: Differential current (2–20 mA)
- Power Supply: +5V or +3.3V operation
- Package: 28-lead SOIC (AST suffix)
Applications include communications, video, and waveform synthesis. The on-chip PLL simplifies clocking, while a sleep mode reduces power consumption when idle.
For detailed performance metrics, refer to the datasheet.

Equivalent

The AD9751AST is a 10-bit, 125 MSPS digital-to-analog converter (DAC). Equivalent or similar products include:
- AD9761 (10-bit, 100 MSPS)
- AD9741 (10-bit, 210 MSPS)
- AD9753 (12-bit, 125 MSPS)
- MAX5891 (10-bit, 500 MSPS, Maxim Integrated)
- DAC904 (14-bit, 165 MSPS, Texas Instruments)
These alternatives vary in speed, resolution, and features but serve similar high-speed DAC applications. Check datasheets for exact compatibility.

Features

The AD9751AST is a 10-bit, 125 MSPS digital-to-analog converter (DAC) with the following key features:
- Resolution: 10 bits
- Sampling Rate: Up to 125 MSPS
- Output Type: Current-output (2–20 mA) with differential or single-ended voltage options
- SFDR: 65 dBc at 1 MHz output
- DNL: ±0.5 LSB (typical)
- Power Supply: Single +5V or dual ±5V operation
- Low Power: 175 mW (5V operation)
- Package: 28-lead SOIC (AST suffix)
- Applications: Communications, waveform generation, video
It includes an on-chip reference and supports CMOS/TTL-compatible inputs.

Pinout

The AD9751AST is a 10-bit, 125 MSPS digital-to-analog converter (DAC) with the following key specifications:
- Pin Count: 28 pins (TSSOP package).
- Functions:
- Digital Inputs: 10-bit parallel data input (DB0–DB9).
- Analog Outputs: Differential current outputs (IOUTA, IOUTB).
- Clock Input: CLOCK for sampling synchronization.
- Control Pins: SLEEP (power-down mode), RESET (asynchronous reset).
- Reference & Bias: REFLO, REFIO (reference voltage control).
- Supply Pins: AVDD (analog supply), DVDD (digital supply).
Designed for high-speed applications like communications and video, it supports a 125 MSPS update rate with low power consumption.

Manufacturer

The AD9751AST is manufactured by Analog Devices, Inc. (ADI), a leading global semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965 and headquartered in Norwood, Massachusetts, ADI serves industries such as automotive, healthcare, industrial, and communications with precision data conversion, signal conditioning, and power management solutions. The AD9751AST is a 10-bit, 125 MSPS digital-to-analog converter (DAC) designed for applications requiring high-speed signal generation. Analog Devices is renowned for its innovation and reliability in analog technology.

Application

The AD9751AST is a high-speed, 10-bit digital-to-analog converter (DAC) primarily used in:
1. Communications: Baseband signal generation in wireless systems (e.g., LTE, 5G).
2. Video Processing: Digital video signal conversion (e.g., HDTV, graphics).
3. Instrumentation: Waveform generation in test equipment (e.g., arbitrary waveform generators).
4. Medical Imaging: Signal reconstruction in ultrasound and MRI systems.
5. Industrial Control: Precision analog output for automation and control systems.
Its high speed (up to 125 MSPS) and low distortion make it suitable for applications requiring accurate, high-frequency analog outputs.

Package

The AD9751AST comes in a 48-lead LQFP (Low-Profile Quad Flat Package). This surface-mount package is compact, suitable for high-speed digital-to-analog conversion applications, and offers good thermal and electrical performance. The LQFP type ensures efficient PCB space utilization while maintaining reliable connectivity.

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