content here.
content here.

AD9845B:  Complete 12-Bit 30 MSPS CCD Signal Processor

The AD9845B is a complete analog signal processor for CCD applications. It features a 30 MHz single-channel architecture designed to sample and condition the outputs of interlaced and progressive scan area CCD arrays. The AD9845B's signal chain consists of an input clamp, correlated double sampler (CDS), Pixel Gain Amplifier (PxGA®), digitally controlled variable gain amplifier (VGA), ...More

AD9845B:  Complete 12-Bit 30 MSPS CCD Signal Processor

Product Description

The AD9845B is a complete analog signal processor for CCD applications. It features a 30 MHz single-channel architecture designed to sample and condition the outputs of interlaced and progressive scan area CCD arrays. The AD9845B's signal chain consists of an input clamp, correlated double sampler (CDS), Pixel Gain Amplifier (PxGA®), digitally controlled variable gain amplifier (VGA), black level clamp, and a 12-bit A/D converter. Additional input modes are provided for processing analog video signals.

The internal registers are programmed through a 3-wire serial digital interface. Programmable features include gain adjustment, black level adjustment, input configuration, and power-down modes.

The AD9845B operates from a single 3 V power supply, typically dissipates 140 mW, and is packaged in a 48-lead LQFP.

RESOURCES & TOOLS

What is your task? Try Lead the Way AdvisorTM BETA
  • Pin Compatible with AD9845A Designs
  • 12-Bit 30 MSPS A/D Converter
  • 30 MSPS Correlated Double Sampler (CDS)
  • 4 dB ± 6 dB 6-Bit Pixel Gain Amplifier (PxGA®)
  • 2 dB to 36 dB 10-Bit Variable Gain Amplifier (VGA)
  • Low Noise Clamp Circuits
  • Preblanking Function
  • Auxiliary Inputs with VGA and Input Clamp
  • 3-Wire Serial Digital Interface
  • 3 V Single-Supply Operation
  • Low Power: 153 mW @ 3 V Supply
  • Space-Saving 48-Lead LQFP Package
  • Resolution (Bits): 12bit
  • Input Range (V p-p): 1V p-p
  • Sample Rate (MSPS): 30MSPS
  • Power Dissipation (mW): 140mW
  • DNL typ (LSB): ±0.5LSB
  • PGA Range (dB): 0 to 34

Functional Block Diagram for AD9845B

Similar Products

arrow View Full Interactive Product Selection Table
Part# Resolution (Bits) Sample Rate (MSPS) Input Range (V p-p) Power Dissipation (mW) Programable H-Drivers Programable V-Clocks Integrated V-Driver Chs Special Features Price* (1000-4999)
AD9920A 12 40.5 1 240 Yes Yes 19 - -
AD9923A 12 36 1 - Yes Yes 15 - $8.66
AD9949 12 36 1 320 Yes No 0 PxGA $7.20
AD9970 14 65 1 150 No No 0 - $10.87
AD9974 14 65 1 300 No No 0 Dual Channel $46.61
AD9977 14 65 1 300 Yes No 0 Dual Channel $42.37
AD9978 14 55 1.4 190 No No 0 Dual Channel $23.30
AD9978A 14 75 2 - - - 0 Dual Channel -
AD9979 14 65 1 150 Yes No 0 - $11.95
AD9990 14 32 1 320 Yes Yes 0 Dual Channel $10.00
back to top

* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.

Pricing, Packaging & Availability

Print Table
back to top

Help

Model
The model number is a specific version of a generic that can be purchased or sampled.

Status
Status indicates the current lifecycle of the product. This can be one of 4 stages:
  • Pre-Release: The model has not been released to general production, but samples may be available.
  • Production: The model is currently being produced, and generally available for purchase and sampling.
  • Last Time Buy: The model has been scheduled for obsolescence, but may still be purchased for a limited time.
  • Obsolete: The specific part is obsolete and no longer available. Other models listed in the table may still be available (if they have a status that is not obsolete).
Package Description
The package for this IC (i.e. DIP, SOIC, BGA). An Evaluation Board is a board engineered to show the performance of the model, the part is included on the board.

For detailed drawings and chemical composition please consult our  Package Site

Pin Count
Pin Count is the number of pins, balls, or pads on the device. Pin-out diagrams & pin function descriptions may be found in the datasheet.

Temperature Range
This is the acceptable operating range of the device. The various ranges specified are as follows:
  • Commercial: 0 to +70 degrees Celsius
  • Military : -55 to +125 degrees Celsius
  • Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
  • Automotive: -40 to +125 degrees Celsius
Price
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

Production Availability
This is the date Analog Devices, Inc. anticipates that the product will ship from the warehouse. Most orders ship within 48 hours of this date.Once an order has been placed, Analog Devices, Inc. will send an Order Acknowledgement email to confirm your delivery date. It is important to note the scheduled dock date on the order entry screen. We do take orders for items that are not in stock, so delivery may be scheduled at a future date. Also, please note the warehouse location for the product ordered. We have warehouses in the United States, Europe and Southeast Asia. Transit times from these sites may vary.
Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.

RoHS Compliant
Due to environmental concerns, ADI offers many of our products in lead-free versions. For more information about lead-free parts, please consult our Pb (Lead) free information page.

View PCN
This is the list of Product Change Notifications (PCN) published on the web for this model. Click on the link to access PCN Information.Only select pre-2009 PCN�s are available on-line. To obtain a pre-2009 PCN, contact your ADI Sales Rep. For more information on ADI's PCN process, please visit our PCN Policy Statement page

*The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
**Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.