AD6645
PRODUCTION14-Bit, 80 MSPS/105 MSPS A/D Converter
- Part Models
- 2
- 1ku List Price
- Starting From $73.99
Part Details
- SNR = 75 dB, fIN 15 MHz, up to 105 MSPS
- SNR = 72 dB, fIN 200 MHz, up to 105 MSPS
- SFDR = 89 dBc, fIN 70 MHz, up to 105 MSPS
- 100 dBFS multitone SFDR
- IF sampling to 200 MHz
- Sampling jitter: 0.1 ps
- 1.5 W power dissipation
- Differential analog inputs
- Pin compatible to AD6644
- Twos complement digital output format
- 3.3 V CMOS compatible
- Data-ready for output latching
The AD6645 is a high speed, high performance, monolithic 14-bit analog-to-digital converter (ADC). All necessary functions, including track-and-hold (T/H) and reference, are included on the chip to provide a complete conversion solution. The AD6645 provides CMOS-compatible digital outputs. It is the fourth generation in a wideband ADC family, preceded by the AD9042 (12-bit, 41 MSPS), the AD6640 (12-bit, 65 MSPS, IF sampling), and the AD6644 (14-bit, 40 MSPS/65 MSPS).
Designed for multichannel, multimode receivers, the AD6645 is part of the Analog Devices, Inc., SoftCell® transceiver chipset. The AD6645 maintains 100 dB multitone, spurious-free dynamic range (SFDR) through the second Nyquist band. This breakthrough performance eases the burden placed on multimode digital receivers (software radios) that are typically limited by the ADC. Noise performance is exceptional; typical signal-to-noise ratio (SNR) is 74.5 dB through the first Nyquist band.
The AD6645 is built on the Analog Devices extra fast complementary bipolar (XFCB) process and uses an innovative, multipass circuit architecture. Units are available in a 52-lead exposed pad (TQFP_EP) package specified from −40°C to +85°C at 80 MSPS and −10°C to +85°C at 105 MSPS.
Product Highlights
- IF Sampling. The AD6645 maintains outstanding ac performance up to input frequencies of 200 MHz, suitable for multicarrier 3G wideband cellular IF sampling receivers.
- Pin Compatibility. The ADC has the same footprint and pin layout as the AD6644 14-bit, 40 MSPS/65 MSPS ADC.
- SFDR Performance and Oversampling. Multitone SFDR performance of 100 dBFS can reduce the requirements of high end RF components.
Applications
- Multichannel, multimode receivers
- Base station infrastructures
- AMPS, IS-136, CDMA, GSM, W-CDMA
- Single channel digital receivers
- Antenna array processing
- Communications instrumentation
- Radars, infrared imaging
- Instrumentation
Documentation
Data Sheet 1
Application Note 15
Technical Articles 7
Cross Reference Guide 3
Circuit Note 1
Customer Case Study 1
Analog Dialogue 5
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD6645ASVZ-105 | 52-Lead TQFP (10mm x 10mm w/ EP) | ||
| AD6645ASVZ-80 | 52-Lead TQFP (10mm x 10mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Mar 15, 2016 - 14_0258 Assembly Transfer of Selected 14x14 LQFP, 14x14 LQFP_EP and 7x7,10x10,12x12,14x14 TQFP_EP Products to Amkor Philippines |
||
| AD6645ASVZ-105 | PRODUCTION | |
| AD6645ASVZ-80 | PRODUCTION | |
|
Jun 16, 2009 - 09_0027 Conversion to Laser Mark for the LQFP Packages (Single Grades) |
||
| AD6645ASVZ-105 | PRODUCTION | |
| AD6645ASVZ-80 | PRODUCTION | |
|
Mar 23, 2009 - 09_0041 ADWIL Fab XFCB2 Front End Manufacturing Change |
||
| AD6645ASVZ-105 | PRODUCTION | |
| AD6645ASVZ-80 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Clock Distribution Devices 3 | ||
| AD9513 | RECOMMENDED FOR NEW DESIGNS | 800 MHz Clock Distribution IC, Dividers, Delay Adjust, Three Outputs |
| AD9514 | RECOMMENDED FOR NEW DESIGNS | 1.6 GHz Clock Distribution IC, Dividers, Delay Adjust, Three Outputs |
| AD9515 | RECOMMENDED FOR NEW DESIGNS | 1.6 GHz Clock Distribution IC, Dividers, Delay Adjust, Two Outputs |
| Clock Generation Devices 3 | ||
| AD9510 | RECOMMENDED FOR NEW DESIGNS | 1.2 GHz Clock Distribution IC, PLL Core, Dividers, Delay Adjust, Eight Outputs |
| AD9511 | RECOMMENDED FOR NEW DESIGNS | 1.2 GHz Clock Distribution IC, PLL Core, Dividers, Delay Adjust, Five Outputs |
| AD9512 | RECOMMENDED FOR NEW DESIGNS | 1.2 GHz Clock Distribution IC, Two 1.6 GHz Inputs, Dividers, Delay Adjust, Five Outputs |
| Single-Ended to Differential Amplifiers 2 | ||
| AD8138 | PRODUCTION | Low Distortion Differential ADC Driver |
| ADA4932-1 | RECOMMENDED FOR NEW DESIGNS | Low Power Differential ADC Driver |
Tools & Simulations
Virtual Eval - BETA
Virtual Eval is a web application to assist designers in product evaluation of ADCs, DACs, and other ADI products. Using detailed models on Analog’s servers, Virtual Eval simulates crucial part performance characteristics within seconds. Configure operating conditions such as input tones and external jitter, as well as device features like gain or digital down-conversion. Performance characteristics include noise, distortion, and resolution, FFTs, timing diagrams, response plots, and more.
Open ToolAD6645 IBIS Models 1
Visual Analog
For designers who are selecting or evaluating high speed ADCs, VisualAnalog™ is a software package that combines a powerful set of simulation and data analysis tools with a user-friendly graphical interface.
Open ToolAD6645 Simulink ADIsimADC Model
Open ToolEvaluation Kits
AD6645 Evaluation Board