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WM8198

Features: • 16-bit ADC• 6MSPS conversion rate• Low power 212mW typical• 5V single supply or 5V/3.3V dual supply operation• Single or 3 channel operation• Correlated double sampling• Dual Range Programmable Gain Amplifier (9-bit resolution)• Programm...

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SeekIC No. : 004546143 Detail

WM8198: Features: • 16-bit ADC• 6MSPS conversion rate• Low power 212mW typical• 5V single supply or 5V/3.3V dual supply operation• Single or 3 channel operation• Correla...

WM8198 Data Sheet

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Part Number:
WM8198
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• 16-bit ADC
• 6MSPS conversion rate
• Low power 212mW typical
• 5V single supply or 5V/3.3V dual supply operation
• Single or 3 channel operation
• Correlated double sampling
• Dual Range Programmable Gain Amplifier (9-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-pin 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
Analogue supply voltages: AVDD GND - 0.3V GND + 7V
Digital supply voltages: DVDD1 − 3 GND - 0.3V GND + 7V
Digital grounds: DGND1 − 5 GND - 0.3V GND + 0.3V
Analogue grounds: AGND1 − 6 GND - 0.3V GND + 0.3V
Digital inputs, digital outputs and digital I/O pins GND - 0.3V DVDD2 + 0.3V
Analogue inputs (RINP, GINP, BINP) GND - 0.3V AVDD + 0.3V
Other pins GND - 0.3V AVDD + 0.3V
Operating temperature range: TA 0°C +70°C
Storage prior to soldering 30°C max / 85% RH max
Storage temperature -65°C +150°C
Package body temperature (soldering, 10 seconds)   +260°C
Package body temperature (soldering, 2 minutes)   +183°C



Description

The WM8198 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 6MSPS.

The WM8198 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 WM8198 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 WM8198 typicallyonly consumes 195mW when operating from a single5V supply.




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