ADCDS-1603 Datasheet, PDF (1/11 Pages) Murata Power Solutions Inc. – 16-Bit, 2.3 Megapixels/Second CCD Signal Processor

ADCDS-1603
16-Bit, 2.3 Megapixels/Second
CCD Signal Processor
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For full details go to
www.murata-ps.com/rohs
FEATURES
2.3 MPPS
Internal 16-bit resolution A/D
Internal correlated doubler sampler (CDS)
Resistor programmable gain adjustment
from 0dB to 15.5dB
1.3 LSB RMS Noise
Small, 40-pin, TDIP or SMT package
Analog front end programmable bandwidth
Extended temperature range –40ºC to +125ºC
Low power, 674mW
Low cost, functionally complete
PRODUCT OVERVIEW
The ADCDS-1603 is an application-specific CCD
signal processor designed for electronic-imaging
applications that employ CCD's (charge coupled
devices) as their photodetector. The ADCDS-1603
incorporates a "user configurable" input amplifier,
a CDS (correlated double sampler) and a 16-bit
resolution sampling A/D converter in a single
package, providing the user with a complete, high
performance, low-cost, low-power, integrated
solution.
The key to the ADCDS-1603'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
output floating capacitor, producing a pixel data
output signal. The ADCDS-1603 digitizes this
resultant pixel data signal using a high-speed,
low-noise sampling A/D converter.
The ADCDS-1603 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-1603 include
gain adjust, offset adjust, precision +2.048V
reference, and a programmable analog bandwidth
function.
FUNCTIONAL BLOCK DIAGRAM
INVERTING INPUT 4
100
0.01μF
DIRECT INPUT 3
NON-INVERTING INPUT 5
5K 7
–5VA
38
+5VA
36
+5VD
34
499
INPUT AMPLIFIER
22pf
CORRELATED
DOUBLE
SAMPLER
SAMPLING
A/D
OFFSET ADJUST 2
REFERENCE HOLD 26
START CONVERT 25
TIMING
AND
CONTROL
32, 33
DIGITAL GROUND
27
DATA VALID
30 31
AØ A1
23 BIT 1 (MSB)
8 BIT 16 (LSB)
6 +2.048V REFERENCE OUTPUT
7, 35, 37
ANALOG GROUND
www.murata-ps.com
Technical enquiries email: [e-mail], tel: [phone]
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