®
®
ADCDS-1410
14-Bit, 10 Megapixels/Second CCD Image Converter
PRODUCT OVERVIEW
FEATURES
ꢀ
The ADCDS-1410 is an application-specific CCD
image converter designed for electronic-imaging
applications that employ CCD's (charge coupled
devices) as their photodetector. The ADCDS-1410
incorporates a "user configurable" input amplifier,
a CDS (correlated double sampler) and a 14-bit
resolution sampling A/D converter in a single
package, providing the user with a complete, high
performance, low-cost, low-power, integrated
solution.
output floating capacitor, producing a pixel data
output signal. The ADCDS-1410 digitizes this
resultant pixel data signal using a high-speed,
low-noise sampling A/D converter.
10 MPPS throughput rate
ꢀ
Internal 14-bit resolution A/D
ꢀ
Internal correlated doubler sampler (CDS)
ꢀ
Resistor programmable gain adjustment
The ADCDS-1410 requires only the rising edge
of start convert pulse to initiate its conversion
process and a Reference Hold command to
acquire and hold the CCD reference level output.
Additional features of the ADCDS-1410 include
gain adjust, offset adjust, precision +2.4V
reference, and a programmable analog bandwidth
function.
from 0dB to 18dB
ꢀ
1 LSB RMS Noise @ 2.3MPPS
ꢀ
Low-Profile 44 Pin SMT Quad Pak or 40 Pin TDIP
ꢀ
Analog front end programmable bandwidth
ꢀ
Extended temperature range –55ºC to +100ºC
The key to the ADCDS-1410's performance is a
unique, high-speed, high-accuracy CDS circuit,
which eliminates the effects of residual charge,
charge injection and "kT/C" noise on the CCD's
ꢀ
Low power, 800mW
ꢀ
Low cost, functionally complete
FUNCTIONAL BLOCK DIAGRAM
+5V
A
–5V
A
+5V
D
+12V
523
INVERTING INPUT
75
Fine Gain Adjust
INPUT AMPLIFIER
0.01ꢀF
DIRECT INPUT
BIT 1 (MSB)
BIT 14 (LSB)
NON-INVERTING INPUT
CORRELATED
DOUBLE
SAMPLER
SAMPLING
A/D
22pf
7
5K
OFFSET ADJUST
TIMING
AND
CONTROL
REFERENCE HOLD
START CONVERT
Out-of-Range
+2.4V REFERENCE OUTPUT
DIGITAL GROUND
DATA VALID
AØ A1
ANALOG GROUND
DATEL
•
11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
•
Tel: (508) 339-3000
•
www.datel.com
•
e-mail: help@datel.com
31 Mar 2011 MDA_ADCDS-1410.B04 Page 1 of 14