AD9258
PRODUCTION14-Bit, 125 MSPS, 1.8 V Dual Analog-to-Digital Converter (ADC)
- Part Models
- 6
- 1ku List Price
- Starting From $73.07
Part Details
- SNR = 77.6 dBFS @ 70 MHz and 125 MSPS
- SFDR = 88 dBc @ 70 MHz and 125 MSPS
- Low power: 750 mW @ 125 MSPS
- 1.8 V analog supply operation
- 1.8 V CMOS or LVDS output supply
- Integer 1-to-8 input clock divider
- Integrated ADC sample-and-hold inputs
- IF sampling frequencies to 300 MHz
- −152.8 dBm/Hz small signal input noise with 200 Ω input impedance @ 70 MHz and 125 MSPS
- Optional on-chip dither
- Programmable internal ADC voltage reference
- See data sheet for additional features
The AD9258 is a dual, 14-bit, 80 MSPS/105 MSPS/125 MSPS analog-to-digital converter (ADC). The AD9258 is designed to support communications applications where high performance, combined with low cost, small size, and versatility, is desired.
The dual ADC core features a multistage, differential pipelined architecture with integrated output error correction logic. Each ADC features wide bandwidth differential sample-and-hold analog input amplifiers that support a variety of user-selectable input ranges. An integrated voltage reference eases design considerations. A duty cycle stabilizer is provided to compensate for variations in the ADC clock duty cycle, allowing the converters to maintain excellent performance.
The ADC output data can be routed directly to the two external 14-bit output ports. These outputs can be set to either 1.8 V CMOS or LVDS.
Flexible power-down options allow significant power savings, when desired.
Programming for setup and control is accomplished using a 3-wire SPI-compatible serial interface.
The AD9258 is available in a 64-lead LFCSP and is specified over the industrial temperature range of −40°C to +85°C.
PRODUCT HIGHLIGHTS
- On-chip dither option for improved SFDR performance with low power analog input.
- Proprietary differential input that maintains excellent SNR performance for input frequencies up to 300 MHz.
- Operation from a single 1.8 V supply and a separate digital output driver supply accommodating 1.8 V CMOS or LVDS outputs.
- Standard serial port interface (SPI) that supports various product features and functions, such as data formatting (offset binary, twos complement, or gray coding), enabling the clock DCS, power-down, test modes, and voltage reference mode.
- Pin compatibility with the AD9268, allowing a simple migration from 14 bits to 16 bits. The AD9258 is also pin compatible with the AD9251, AD9231, and AD9204 family of products for lower sample rate, low power applications.
APPLICATIONS
- Communications
- Diversity radio systems
- Multimode digital receivers (3G)
- GSM, EDGE, W-CDMA, LTE,
- CDMA2000, WiMAX, TD-SCDMA
- I/Q demodulation systems
- Smart antenna systems
- General-purpose software radios
- Broadband data applications
- Ultrasound Equipment
Documentation
Data Sheet 1
User Guide 2
Application Note 13
Technical Articles 2
Evaluation Design File 3
Circuit Note 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 |
|---|---|---|---|
| AD9258BCPZ-105 | 64-Lead LFCSP (9mm x 9mm w/ EP) | ||
| AD9258BCPZ-125 | 64-Lead LFCSP (9mm x 9mm w/ EP) | ||
| AD9258BCPZ-80 | 64-Lead LFCSP (9mm x 9mm w/ EP) | ||
| AD9258BCPZRL7-105 | 64-Lead LFCSP (9mm x 9mm w/ EP) | ||
| AD9258BCPZRL7-125 | 64-Lead LFCSP (9mm x 9mm w/ EP) | ||
| AD9258BCPZRL7-80 | 64-Lead LFCSP (9mm x 9mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 9, 2021 - 20_0126 Conversion of Select Sizes LFCSP Products from Punched to Sawn and Transfer of Assembly Site to ASE Korea |
||
| AD9258BCPZ-105 | PRODUCTION | |
| AD9258BCPZ-125 | PRODUCTION | |
| AD9258BCPZ-80 | PRODUCTION | |
| AD9258BCPZRL7-105 | PRODUCTION | |
| AD9258BCPZRL7-125 | PRODUCTION | |
| AD9258BCPZRL7-80 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Baseband Programmable VGA-Filters 1 | ||
| ADRF6516 | Obsolete | 31 MHz, Dual Programmable Filters and Variable Gain Amplifiers |
| 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 5 | ||
| 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 |
| 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 ToolAD9258 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 ToolADIsimRF
ADIsimRF is an easy-to-use RF signal chain calculator. Cascaded gain, noise, distortion and power consumption can be calculated, plotted and exported for signal chains with up to 50 stages. ADIsimRF also includes an extensive data base of device models for ADI’s RF and mixed signal components.
Open ToolAD9258 Simulink ADIsimADC Model
Open ToolEvaluation Kits
FPGA-Based Data Capture Kit
Resources
Software
AD9258 Evaluation Board