AD9645
RECOMMENDED FOR NEW DESIGNSDual, 14-Bit, 80 MSPS/125 MSPS Serial LVDS 1.8 V Analog-to-Digital Converter
- Part Models
- 6
- 1ku List Price
- Starting From $35.94
Part Details
- 1.8 V supply operation
- Low power: 122 mW per channel at 125 MSPS with scalable power options
- SNR = 74 dBFS (to Nyquist); SFDR = 91 dBc at 70 MHz
- DNL = ±0.65 LSB (typical); INL = ±1.5 LSB (typical)
- Serial LVDS (ANSI-644, default) and low power, reduced range option (similar to IEEE 1596.3)
- 650 MHz full power analog bandwidth
- 2 V p-p input voltage range
- Serial port control
- Full chip and individual channel power-down modes
- Flexible bit orientation
- Built-in and custom digital test pattern generation
- Clock divider
- Programmable output clock and data alignment
- Programmable output resolution
- Standby mode
- AEC-Q100 qualified for automotive applications
The AD9645 is a dual, 14-bit, 80 MSPS/125 MSPS analog-to-digital-converter (ADC) with an on-chip sample-and-hold circuit designed for low cost, low power, small size, and ease of use. The product operates at a conversion rate of up to 125 MSPS and is optimized for outstanding dynamic performance and low power in applications where a small package size is critical.
The ADC requires a single 1.8 V power supply and LVPECL-/CMOS-/LVDS-compatible sample rate clock for full performance operation. No external reference or driver components are required for many applications.
The ADC automatically multiplies the sample rate clock for the appropriate LVDS serial data rate. A data clock output (DCO) for capturing data on the output and a frame clock output (FCO) for signaling a new output byte are provided. Individual channel power-down is supported; the AD9645 typically consumes less than 2 mW in the full power-down state. The ADC provides several features designed to maximize flexibility and minimize system cost, such as programmable output clock and data alignment and digital test pattern generation. The available digital test patterns include built-in deterministic and pseudo-random patterns, along with custom user-defined test patterns entered via the serial port interface (SPI).
The AD9645 is available in a RoHS-compliant, 32-lead LFCSP. It is specified over the automotive temperature range of −40°C to +105°C.
PRODUCT HIGHLIGHTS
- Small Footprint. Two ADCs are contained in a small, space-saving package.
- Low Power. The AD9645 uses 122 mW/channel at 125 MSPS with scalable power options.
- Pin Compatibility with the AD9635, a 12-Bit Dual ADC.
- Ease of Use. A data clock output (DCO) operates at frequencies of up to 500 MHz and supports double data rate (DDR) operation.
- User Flexibility. The SPI control offers a wide range of flexible features to meet specific system requirements.
APPLICATIONS
- Communications
- Diversity radio systems
- Multimode digital receivers
- GSM, EDGE, W-CDMA, LTE, CDMA2000, WiMAX, TD-SCDMA
- I/Q demodulation systems
- Smart antenna systems
- Broadband data applications
- Battery-powered instruments
- Hand held scope meters
- Portable medical imaging and ultrasound
- Radar/LIDAR
Documentation
Data Sheet 1
User Guide 1
Application Note 10
Technical Articles 1
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 |
|---|---|---|---|
| AD9645BCPZ-125 | 32-Lead LFCSP (5mm x 5mm x 0.75mm w/ EP) | ||
| AD9645BCPZ-80 | 32-Lead LFCSP (5mm x 5mm x 0.75mm w/ EP) | ||
| AD9645BCPZRL7-125 | 32-Lead LFCSP (5mm x 5mm x 0.75mm w/ EP) | ||
| AD9645BCPZRL7-80 | 32-Lead LFCSP (5mm x 5mm x 0.75mm w/ EP) | ||
| AD9645WBCPZ-80 | 32-Lead LFCSP (5mm x 5mm x 0.75mm w/ EP) | ||
| AD9645WBCPZRL7-80 | 32-Lead LFCSP (5mm x 5mm x 0.75mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Feb 1, 2024 - 24_0009 Qualification of alternative Wafer Fab for TSMC 0.18um Mixed Signal CMOS Process |
||
| AD9645BCPZ-125 | PRODUCTION | |
| AD9645BCPZ-80 | PRODUCTION | |
| AD9645BCPZRL7-125 | PRODUCTION | |
| AD9645BCPZRL7-80 | PRODUCTION | |
|
May 11, 2014 - 13_0231 Assembly Transfer of Select 4x4 and 5x5mm LFCSP Products to STATS ChipPAC China. |
||
| AD9645BCPZ-125 | PRODUCTION | |
| AD9645BCPZ-80 | PRODUCTION | |
| AD9645BCPZRL7-125 | PRODUCTION | |
| AD9645BCPZRL7-80 | 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 6 | ||
| 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 |
| AD9523 | NOT RECOMMENDED FOR NEW DESIGNS | 14-Output, Low Jitter Clock generator |
| AD9523-1 | RECOMMENDED FOR NEW DESIGNS | Low Jitter Clock Generator with 14 LVPECL/LVDS/HSTL/29 LVCMOS Outputs |
| AD9524 | NOT RECOMMENDED FOR NEW DESIGNS | 6 Output, Dual Loop Clock Generator |
| Digital Control VGAs 2 | ||
| ADL5202 | Obsolete | Wide Dynamic Range, High Speed, Digitally Controlled VGA |
| AD8376 | RECOMMENDED FOR NEW DESIGNS | Ultralow Distortion IF Dual VGA |
| Fully Differential Amplifiers 1 | ||
| ADL5562 | RECOMMENDED FOR NEW DESIGNS | 3.3 GHz Ultralow Distortion RF/IF Differential Amplifier |
| Single-Ended to Differential Amplifiers 2 | ||
| ADA4927-2 | RECOMMENDED FOR NEW DESIGNS | Ultralow Distortion Current Feedback Differential ADC Driver |
| ADA4938-2 | RECOMMENDED FOR NEW DESIGNS | Ultralow Distortion Differential ADC Driver (Dual) |
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 ToolAD9645 IBIS Model 1
S-Parameter 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 ToolAD9645 Simulink ADIsimADC Model
Open ToolEvaluation Kits
AD9645 Evaluation Board