PRELIMINARY Data Sheet
Amplify the Human Experience
CDK2308
Dual, 20/40/65/80MSPS, 10-bit
Analog-to-Digital Converters
f E A t u R E s
General Description
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10-bit resolution
The CDK2308 is a high performance, low power dual Analog-to-Digital Con-
verters (ADC). The ADC employs internal reference circuitry, a CMOS control
interface and CMOS output data, and is based on a proprietary structure.
Digital error correction is employed to ensure no missing codes in the com-
plete full scale range.
20/40/65/80MSPS maximum sampling rate
Ultra-low power dissipation: 24/43/65/78mW
61.6dB SNR at 8MHz FIN
Internal reference circuitry
1.8V core supply voltage
1.7V – 3.6V I/O supply voltage
Parallel CMOS output
Several idle modes with fast startup times exist. Each channel can indepen-
dently be powered down and the entire chip can either be put in Standby
Mode or Power Down mode. The different modes are optimized to allow the
user to select the mode resulting in the smallest possible energy consumption
during idle mode and startup.
64-pin TQFP package
Dual channel
Pin compatible with CDK2307
The CDK2308 has a highly linear THA optimized for frequencies up to Nyquist.
The differential clock interface is optimized for low jitter clock sources and
supports LVDS, LVPECL, sine wave and CMOS clock inputs.
A P P L I c A t I o N s
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Medical Imaging
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Portable Test Equipment
Functional Block Diagram
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Digital Oscilloscopes
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IF Communication
CLK_EXT
Ordering Information
Part Number
Speed
Package
TQFP-64
TQFP-64
TQFP-64
TQFP-64
TQFP-64
TQFP-64
TQFP-64
TQFP-64
Pb-Free RoHS Compliant Operating Temperature Range Packaging Method
CDK2308AITQ64
CDK2308AITQ64X
CDK2308BITQ64
CDK2308BITQ64X
CDK2308CITQ64
CDK2308CITQ64X
CDK2308DITQ64
CDK2308DITQ64X
20MSPS
20MSPS
40MSPS
40MSPS
65MSPS
65MSPS
80MSPS
80MSPS
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
Tray
Tape & Reel
Tray
Tape & Reel
Tray
Tape & Reel
Tray
Tape & Reel
Moisture sensitivity level for all parts is MSL-3.
©2008 CADEKA Microcircuits LLC
www.cadeka.com