Overview
The AD6645ASV-80 is a high-speed, high-performance, monolithic 14-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. It is part of the SoftCell® transceiver chipset and is designed for multichannel, multimode receivers. This ADC integrates all necessary functions, including track-and-hold (T/H) and reference, to provide a complete conversion solution. The AD6645ASV-80 is built on the Analog Devices extra fast complementary bipolar (XFCB) process and uses an innovative, multipass circuit architecture, ensuring exceptional noise performance and high dynamic range.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Conditions |
|---|---|---|---|---|---|
| Resolution | 14 bits | ||||
| Sampling Rate | 80 MSPS | MSPS | |||
| Signal-to-Noise Ratio (SNR) | 72.5 | 74.5 | dB | @ 30.5 MHz, -1 dBFS | |
| Spurious-Free Dynamic Range (SFDR) | 100 | dB | Through the second Nyquist band | ||
| Power Dissipation | 1.5 W | ||||
| Operating Temperature | -40°C | 85°C | °C | ||
| Package | 52-lead exposed pad (TQFP_EP) | ||||
| Digital Output Format | Twos complement | ||||
Key Features
- High-Speed Operation: The AD6645ASV-80 operates at sampling rates up to 80 MSPS, making it suitable for high-speed applications.
- High Performance: It maintains outstanding ac performance up to input frequencies of 200 MHz, ideal for multicarrier 3G wideband cellular IF sampling receivers.
- Low Noise and High Dynamic Range: The ADC offers a typical signal-to-noise ratio (SNR) of 74.5 dB and a spurious-free dynamic range (SFDR) of 100 dB through the second Nyquist band.
- CMOS-Compatible Digital Outputs: The AD6645ASV-80 provides CMOS-compatible digital outputs, ensuring compatibility with a wide range of digital systems.
- Pin Compatibility: It has the same footprint and pin layout as the AD6644, facilitating easy upgrades and design flexibility.
Applications
- Multichannel, Multimode Receivers: Designed for use in multichannel, multimode receivers, the AD6645ASV-80 is particularly suited for base station infrastructures and software radios.
- Base Station Infrastructures: Supports various wireless standards such as AMPS, IS-136, CDMA, GSM, and W-CDMA.
- Single Channel Digital Receivers: Ideal for single channel digital receivers requiring high performance and low noise.
- Antenna Array Processing: Used in antenna array processing and communications instrumentation.
- Radars and Infrared Imaging: Suitable for applications in radars and infrared imaging due to its high-speed and high-performance capabilities.
Q & A
- What is the resolution of the AD6645ASV-80 ADC?
The AD6645ASV-80 has a resolution of 14 bits.
- What is the maximum sampling rate of the AD6645ASV-80?
The maximum sampling rate of the AD6645ASV-80 is 80 MSPS.
- What is the typical signal-to-noise ratio (SNR) of the AD6645ASV-80?
The typical SNR of the AD6645ASV-80 is 74.5 dB at 30.5 MHz and -1 dBFS.
- What is the spurious-free dynamic range (SFDR) of the AD6645ASV-80?
The SFDR of the AD6645ASV-80 is 100 dB through the second Nyquist band.
- What is the power dissipation of the AD6645ASV-80?
The power dissipation of the AD6645ASV-80 is 1.5 W.
- What is the operating temperature range of the AD6645ASV-80?
The operating temperature range of the AD6645ASV-80 is from -40°C to 85°C.
- What package type is the AD6645ASV-80 available in?
The AD6645ASV-80 is available in a 52-lead exposed pad (TQFP_EP) package.
- What is the digital output format of the AD6645ASV-80?
The digital output format of the AD6645ASV-80 is twos complement.
- Is the AD6645ASV-80 pin compatible with other models?
Yes, the AD6645ASV-80 is pin compatible with the AD6644.
- What are some common applications of the AD6645ASV-80?
The AD6645ASV-80 is commonly used in multichannel, multimode receivers, base station infrastructures, single channel digital receivers, antenna array processing, and radars.
