AD9235
PRODUCTION12-Bit, 20/40/65 MSPS, 3 V Analog-to-Digital Converter
- Part Models
- 11
- 1ku List Price
- Starting From $9.36
Overview
- Single +3 V Supply Operation (2.7 V to 3.6 V)
- SNR = 70 dBc to Nyquist at 65 MSPS
- SFDR = 85 dBc to Nyquist at 65 MSPS
- Low Power: 300 mW at 65 MSPS
- On-Chip Reference and SHA
- Differential Input with 500 MHz Bandwidth
- DNL of ±0.4 LSB
- Flexible Analog Input: 1 Vp-p to 2 Vp-p
- Offset Binary or Twos Complement Data Format
- Clock Duty Cycle Stabilizer
- Pin out Migration to Either AD9215, AD9236, AD9245
The AD9235 is a family of monolithic, single 3 V supply, 12-bit, 20/40/65 MSPS analog-to-digital converters. This family features a high performance sample-and-hold amplifier (SHA) and voltage reference. The AD9235 uses a multistage differential pipelined architecture with output error correction logic to provide 12-bit accuracy at 20/40/65 MSPS data rates and guarantee no missing codes over the full operating temperature range.
The wide bandwidth, truly differential SHA allows a variety of user-selectable input ranges and offsets including single-ended applications. It is suitable for multiplexed systems that switch full-scale voltage levels in successive channels and for sampling single-channel inputs at frequencies well beyond the Nyquist rate. Combined with power and cost savings over previously available analog-to-digital converters, the AD9235 is suitable for applications in communications, imaging, and medical ultrasound.
A single-ended clock input is used to control all internal conversion cycles. A duty cycle stabilizer (DCS) compensates for wide variations in the clock duty cycle while maintaining excellent overall ADC performance. The digital output data is presented in straight binary or twos complement formats. An out-of-range (OTR) signal indicates an overflow condition that can be used with the most significant bit to determine low or high overflow.
Fabricated on an advanced CMOS process, the AD9235 is available in a 28-lead thin shrink small outline package (TSSOP) and a 32-lead chip scale package (LFCSP) and is specified over the industrial temperature range (-40°C to +85°C).
APPLICATIONS
- Ultrasound equipment
- IF sampling in communications receivers
- Battery-powered instruments
- Hand-held scopemeters
- Low cost digital oscilloscopes
PRODUCT HIGHLIGHTS
- The AD9235 operates from a single 3 V power supply and features a separate digital output driver supply to accommodate 2.5 V and 3.3 V logic families.
- Operating at 65 MSPS, the AD9235 consumes a low 300 mW.
- The patented SHA input maintains excellent performance for input frequencies up to 100 MHz and can be configured for single-ended or differential operation.
- The AD9235 pinout is similar to the AD9214-65, a 10-bit, 65 MSPS ADC. This allows a simplified upgrade path from 10 bits to 12 bits for 65 MSPS systems.
- The clock DCS maintains overall ADC performance over a wide range of clock pulse widths.
- The OTR output bit indicates when the signal is beyond the selected input range.
Documentation
Data Sheet 1
Application Note 15
Technical Articles 4
Evaluation Design File 1
Rarely Asked Question Page 1
Analog Dialogue 2
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 |
|---|---|---|---|
| AD9235BCPZ-20 | 32 ld LFCSP (5x5mm CP-32-2) | ||
| AD9235BCPZ-40 | 32 ld LFCSP (5x5mm CP-32-2) | ||
| AD9235BCPZ-65 | 32 ld LFCSP (5x5mm CP-32-2) | ||
| AD9235BCPZRL7-20 | 32 ld LFCSP (5x5mm CP-32-2) | ||
| AD9235BCPZRL7-40 | 32 ld LFCSP (5x5mm CP-32-2) | ||
| AD9235BRUZ-20 | 28 ld TSSOP | ||
| AD9235BRUZ-40 | 28 ld TSSOP | ||
| AD9235BRUZ-65 | 28 ld TSSOP | ||
| AD9235BRUZRL7-20 | 28 ld TSSOP | ||
| AD9235BRUZRL7-40 | 28 ld TSSOP | ||
| AD9235BRUZRL7-65 | 28 ld TSSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Feb 25, 2025 - 25_0055 Gold Wire to Copper Wire Conversion(PCA) |
||
| AD9235BCPZ-20 | PRODUCTION | |
| AD9235BCPZ-40 | PRODUCTION | |
| AD9235BCPZ-65 | PRODUCTION | |
| AD9235BCPZRL7-20 | PRODUCTION | |
| AD9235BCPZRL7-40 | PRODUCTION | |
|
Oct 25, 2012 - 11_0104 Conversion of Select Sizes of LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to ASE-Korea. |
||
| AD9235BCPZ-20 | PRODUCTION | |
| AD9235BCPZ-65 | PRODUCTION | |
| AD9235BCPZRL7-20 | PRODUCTION | |
|
Jun 20, 2011 - 11_0103 Metal Mask Revision AD9235A Die |
||
| AD9235BCPZ-20 | PRODUCTION | |
| AD9235BCPZ-40 | PRODUCTION | |
| AD9235BCPZ-65 | PRODUCTION | |
| AD9235BCPZRL7-20 | PRODUCTION | |
| AD9235BCPZRL7-40 | PRODUCTION | |
|
Mar 23, 2012 - 11_0104 Conversion of Select Sizes of LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to ASE-Korea. |
||
| AD9235BCPZ-40 | PRODUCTION | |
| AD9235BCPZRL7-40 | PRODUCTION | |
|
Feb 15, 2010 - 07_0061 LFCSP Package Manufacturing Line Transfer from Amkor Korea to Amkor PRC |
||
| AD9235BCPZRL7-20 | PRODUCTION | |
|
Feb 11, 2011 - 10_0005 Halogen Free Material Change for TSSOP Products Assembled at Amkor |
||
| AD9235BRUZ-20 | PRODUCTION | |
| AD9235BRUZ-40 | PRODUCTION | |
| AD9235BRUZ-65 | PRODUCTION | |
| AD9235BRUZRL7-20 | PRODUCTION | |
| AD9235BRUZRL7-40 | PRODUCTION | |
| AD9235BRUZRL7-65 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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| Parts | Product Life Cycle | Description |
|---|---|---|
| Clock ICs 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 |
| 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 |
| Differential Amplifiers 3 | ||
| AD8138 | PRODUCTION | Low Distortion Differential ADC Driver |
| ADA4932-1 | RECOMMENDED FOR NEW DESIGNS | Low Power Differential ADC Driver |
| AD8352 | RECOMMENDED FOR NEW DESIGNS | 2 GHz Ultralow Distortion Differential RF/IF Amplifier |
| Voltage References 1 | ||
| ADR130 | PRODUCTION | Precision Series Sub-Band Gap Voltage Reference |
Tools & Simulations
AD9235 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 ToolEvaluation Kits
AD9235 Evaluation Board