AD9822JR - Brand New Analog Devices Sensor and Detector Interfaces
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Description
The AD9822 is a complete analog signal processor for CCD imaging applications. It features a 3-channel architecture designed to sample and condition the outputs of trilinear color CCD arrays. Each channel consists of an input clamp, correlated double sampler (CDS), offset DAC, and programmable gain amplifier (PGA) multiplexed to a high-performance 14-bit ADC. The CDS amplifiers may be disabled for use with sensors such as contact image sensors (CIS) and CMOS active pixel sensors, which do not require CDS. The 14-bit digital output is multiplexed into an 8-bit output word that is accessed using two read cycles. The internal registers are programmed through a 3-wire serial interface and provide adjustment of the gain, offset, and operating mode. The AD9822 operates from a single 5 V power supply, consumes 385 mW of power typically, and is packaged in a 28-lead SOIC or SSOP.
Specifications and features
- 14-bit 15 MSPS ADC
- No missing codes guaranteed
- 3-channel operation up to 15 MSPS
- 1-channel operation up to 12.5 MSPS
- Correlated double sampling
- 1–6× programmable gain
- ±350 mV programmable offset
- Input clamp circuitry
- Internal voltage reference
- Multiplexed byte-wide output (8 + 6 format)
- 3-wire serial digital interface
- 3 V/5 V digital I/O compatibility
- 28-Lead SOIC or SSOP
- Low power CMOS: 385 mW (typ)
- Power-down mode: <1 mW
Application Scenarios
Flatbed document scanners
Film scanners
Digital color copiers
Multifunction peripheralsComparison
Advantages- Complete analog signal processor specifically designed for CCD imaging applications.
- 3-channel architecture for sampling and conditioning trilinear color CCD array outputs.
- Accommodates sensors such as contact image sensors (CIS) and CMOS active pixel sensors.
- Programmable gain amplifier and offset DAC for adjustable gain, offset, and operating mode.
- Low power consumption at 385 mW (typ).
Disadvantages- Limited to a 5 V power supply.
- Packaged in a 28-lead SOIC or SSOP, which may not be suitable for all applications.
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Datasheet
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Shopping guide
Delivery period:
- - Will ship out in 2-3 days
- - DHL Express: 3-7 business days
- - DHL eCommerce: 12-22 business days
- - FedEx International Priority: 3-7 business days
- - EMS: 10-15 business days
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Popular parts of the same kind
- Datasheet: Download AD9822JR
- Chipdatas Part: CD94-AD9822JR
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/07/01 02:38 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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The fee is charged according to the rule of PayPal.
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