Overview
The AD6645ASVZ-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 Analog Devices SoftCell® transceiver chipset and is designed for multichannel, multimode receivers. The AD6645 integrates all necessary functions, including track-and-hold (T/H) and reference, to provide a complete conversion solution. It is the fourth generation in a wideband ADC family, following the AD9042, AD6640, and AD6644. The ADC maintains exceptional noise performance and outstanding ac performance up to input frequencies of 200 MHz, making it suitable for various high-frequency applications.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Resolution | 14 bits | |
| Sampling Rate | Up to 80 MSPS | |
| Signal-to-Noise Ratio (SNR) | 75 dB at 15.5 MHz, 72 dB at 200 MHz | At -1 dBFS, 25°C |
| Spurious-Free Dynamic Range (SFDR) | 89 dBc at 70 MHz, 100 dBFS multitone SFDR | Up to 105 MSPS |
| Sampling Jitter | 0.1 ps | |
| Power Dissipation | 1.5 W | |
| Analog Input | Differential | |
| Digital Output Format | Twos complement | |
| Logic Compatibility | 3.3 V CMOS compatible | |
| Package | 52-lead exposed pad TQFP (10mm x 10mm w/ EP) | |
| Operating Temperature | -40°C to +85°C at 80 MSPS, -10°C to +85°C at 105 MSPS |
Key Features
- High-speed operation with sampling rates up to 80 MSPS.
- Exceptional noise performance with SNR of 75 dB at 15.5 MHz and 72 dB at 200 MHz.
- Outstanding SFDR of 89 dBc at 70 MHz and 100 dBFS multitone SFDR.
- Low sampling jitter of 0.1 ps.
- Differential analog inputs and twos complement digital output format.
- 3.3 V CMOS compatible digital outputs.
- Pin compatible with the AD6644 ADC.
- IF sampling capability up to 200 MHz, suitable for multicarrier 3G wideband cellular IF sampling receivers.
Applications
- Multichannel, multimode receivers.
- Base station infrastructures (AMPS, IS-136, CDMA, GSM, W-CDMA).
- Single channel digital receivers.
- Antenna array processing.
- Communications instrumentation.
- Radar and infrared imaging systems.
- Instrumentation.
Q & A
- What is the resolution of the AD6645ASVZ-80 ADC?
The AD6645ASVZ-80 is a 14-bit analog-to-digital converter.
- What are the sampling rates supported by the AD6645ASVZ-80?
The AD6645ASVZ-80 supports sampling rates up to 80 MSPS.
- What is the signal-to-noise ratio (SNR) of the AD6645ASVZ-80?
The SNR is 75 dB at 15.5 MHz and 72 dB at 200 MHz.
- What is the spurious-free dynamic range (SFDR) of the AD6645ASVZ-80?
The SFDR is 89 dBc at 70 MHz and 100 dBFS multitone SFDR.
- What is the sampling jitter of the AD6645ASVZ-80?
The sampling jitter is 0.1 ps.
- Is the AD6645ASVZ-80 pin compatible with other ADCs?
Yes, it is pin compatible with the AD6644 ADC.
- What are the typical applications of the AD6645ASVZ-80?
It is used in multichannel, multimode receivers, base station infrastructures, single channel digital receivers, antenna array processing, communications instrumentation, and more.
- What is the operating temperature range of the AD6645ASVZ-80?
The operating temperature range is -40°C to +85°C at 80 MSPS and -10°C to +85°C at 105 MSPS.
- What is the power dissipation of the AD6645ASVZ-80?
The power dissipation is 1.5 W.
- What type of package does the AD6645ASVZ-80 come in?
The AD6645ASVZ-80 comes in a 52-lead exposed pad TQFP (10mm x 10mm w/ EP) package.
