Overview
The AD6644AST-40 is a high-performance, 14-bit analog-to-digital converter (ADC) produced by Analog Devices, Inc. (ADI). This monolithic ADC is designed to provide a complete conversion solution, incorporating all necessary functions such as track-and-hold (TH) and reference on-chip. It is part of the third generation in a wideband ADC family and is particularly suited for multichannel, multimode receivers and single-channel digital receivers in various communication systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Bits | 14 | |
| Maximum Sampling Rate | 40 MSPS | |
| Analog Input Range | 2 V p-p | |
| Analog Input Type | Differential | |
| Signal-to-Noise Ratio (SNR) | 74 dB (typical) | |
| Spurious-Free Dynamic Range (SFDR) | 100 dB (multitone) | |
| Power Dissipation | 1.3 W | |
| Package Type | 52-lead Plastic Low Profile Quad Flat Package (LQFP) | |
| Operating Temperature Range | -25°C to +85°C | |
| Digital Output Voltage | 3.3 V CMOS compatible |
Key Features
- High-resolution and high-speed sampling rate, enhancing precision and signal acquisition.
- Low noise performance with a typical SNR of 74 dB and SFDR of 100 dB.
- Fully differential analog input stage and twos complement digital output format.
- Complete on-chip solution including track-and-hold and reference.
- Pin compatible with AD6645 and compatible with various DSP and microprocessor interfaces.
- RoHS compliant and meets industrial standards for electronic components.
- Designed for long operational lifespan under typical usage conditions.
Applications
- Multichannel, multimode receivers (e.g., AMPS, IS-136, CDMA, GSM, WCDMA).
- Single-channel digital receivers in wide-channel bandwidth systems.
- Antenna array processing and communications instrumentation.
- Radar and infrared imaging systems.
Q & A
- What is the maximum sampling rate of the AD6644AST-40?
The maximum sampling rate of the AD6644AST-40 is 40 MSPS. - What is the resolution of the AD6644AST-40?
The AD6644AST-40 has a 14-bit resolution. - What type of analog inputs does the AD6644AST-40 have?
The AD6644AST-40 has differential analog inputs. - What is the signal-to-noise ratio (SNR) of the AD6644AST-40?
The typical SNR of the AD6644AST-40 is 74 dB. - What is the power dissipation of the AD6644AST-40?
The power dissipation of the AD6644AST-40 is 1.3 W. - In what package is the AD6644AST-40 supplied?
The AD6644AST-40 is supplied in a 52-lead plastic low profile quad flat package (LQFP). - What are the operating temperature ranges for the AD6644AST-40?
The operating temperature range for the AD6644AST-40 is -25°C to +85°C. - Is the AD6644AST-40 RoHS compliant?
Yes, the AD6644AST-40 is RoHS compliant. - What are some typical applications of the AD6644AST-40?
The AD6644AST-40 is typically used in multichannel, multimode receivers, single-channel digital receivers, antenna array processing, communications instrumentation, and radar and infrared imaging systems. - What is the digital output voltage compatibility of the AD6644AST-40?
The digital outputs of the AD6644AST-40 are 3.3 V CMOS compatible).
