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WM8196

Features: • 16-bit ADC• 12MSPS conversion rate• Low power 320mW typical• 5V single supply or 5V/3.3V dual supply operation• Single or 3 channel operation• Correlated double sampling• Programmable gain (8-bit resolution)• Programmable offset adjust (...

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SeekIC No. : 004546141 Detail

WM8196: Features: • 16-bit ADC• 12MSPS conversion rate• Low power 320mW typical• 5V single supply or 5V/3.3V dual supply operation• Single or 3 channel operation• Correl...

WM8196 Data Sheet

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Part Number:
WM8196
Supply Ability:
5000

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  • 15 Days
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Product Details

Description



Features:

• 16-bit ADC
• 12MSPS conversion rate
• Low power 320mW typical
• 5V single supply or 5V/3.3V dual supply operation
• Single or 3 channel operation
• Correlated double sampling
• Programmable gain (8-bit resolution)
• Programmable offset adjust (8-bit resolution)
• Programmable clamp voltage
• 8 or 4-bit wide multiplexed data output formats
• Internally generated voltage references
• 28-lead SSOP package
• Serial control interface


Application

• Flatbed and sheetfeed scanners
• USB compatible scanners
• Multi-function peripherals
• High-performance CCD sensor interface


Pinout

Connection Diagram


Specifications

CONDITION MIN MAX
Digital supply voltage: DVDD GND - 0.3V GND + 7V
Analogue supply voltage: AVDD GND - 0.3V GND + 7V
Digital ground: DGND. Analogue ground: AGND1, AGND2 GND - 0.3V GND + 0.3V
Digital inputs: MCLK, VSMP, CLAMP GND - 0.3V GND + 0.3V
Digital outputs: DOUT GND - 0.3V DVDD2 + 0.3V
Analogue inputs: VINM, VINP, VREFIN GND - 0.3V AVDD + 0.3V
Reference pins: VRT, VRB GND - 0.3V AVDD + 0.3V
Operating temperature range: TA 0°C +70°C
Storage temperature prior to soldering 30°C max / 85% RH max
Storage temperature -65°C +150°C



Description

The WM8196 is a 16-bit analogue front end/digitiser ICwhich processes and digitises the analogue output signalsfrom CCD sensors or Contact Image Sensors (CIS) at pixelsample rates of up to 12MSPS.

The WM8196 includes three analogue signal processingchannels each of which contains Reset Level Clamping,Correlated Double Sampling and Programmable Gain andOffset adjust functions. Three multiplexers allow singlechannel processing. The output from each of thesechannels is time multiplexed into a single high-speed 16-bitAnalogue to Digital Converter. The digital output data isavailable in 8 or 4-bit wide multiplexed format.

An internal 4-bit DAC of the WM8196 is supplied for internal reference levelgeneration. This may be used during CDS to reference CISsignals or during Reset Level Clamping to clamp CCDsignals. An external reference level may also be supplied.ADC references are generated internally, ensuring optimumperformance from the device.

Using an analogue supply voltage of 5V and a digitalinterface supply of either 5V or 3.3V, the WM8196 typicallyonly consumes 300mW when operating from a single5V supply.




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