ADCDS-1410 Datasheet, PDF (1/9 Pages) Murata Power Solutions Inc. – 14-Bit, 10 Megapixels/Second, CCD Signal Processor

ADCDS-1410
14-Bit, 10 Megapixels/Second, CCD Signal Processor
Typical unit
FEATURES
n 14-bit resolution
n 10MPPS throughput rate (14-bits)
n Extended temperature range -55°C to +100°C
n 1 LSB RMS Noise
n Excellent Signal-to-Noise ratio
n Edge triggered
n Small, 40-pin, TDIP package
n Low power, 800mW typical
n Low cost, functionally complete
n Programmable Analog Bandwidth
PRODUCT OVERVIEW
The ADCDS-1410 is an application-specific video signal processor 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 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-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 output floating capacitor, producing a "valid video" output signal. The
ADCDS-1410 digitizes this resultant "valid video" signal using a high-speed, low-noise
sampling A/D converter.
The ADCDS-1410 requires only the rising edge of start convert pulse to initiate its con-
version process. Additional features of the ADCDS-1410 include gain adjust, offset adjust,
precision +2.4V reference, and a programmable analog bandwidth function.
INPUT/OUTPUT CONNECTIONS
Pin
Function
Pin Function
1 Fine Gain Adjust 40 No Connect
2
Offset Adjust
39
+12v
3
Direct Input
38
–5va
4
Inverting Input 37 Analog Ground
5 Non-Inverting Input 36
+5va
6 +2.4v Ref. Output 35 Analog Ground
7 Analog Ground 34
+5vd
8
No Connect
33 Digital Ground
9
No Connect
32 Digital Ground
10
Bit 14 (Lsb)
31
A1
11
Bit 13
30
AO
12
Bit 12
29 No Connect
13
Bit 11
28 No Connect
14
Bit 10
27 Data Valid
15
Bit 9
26 Reference Hold
16
Bit 8
25 Start Convert
17
Bit 7
24 Out-Of-Range
18
Bit 6
23 Bit 1 (Msb)
19
Bit 5
22
Bit 2
20
Bit 4
21
Bit 3
SIMPLIFIED SCHEMATIC
75�
INVERTING INPUT 4
0.01µF
DIRECT INPUT 3
NON-INVERTING INPUT 5
+12VA
39
523�
–5VA
38
+5VA
36
+5VD
34
INPUT AMPLIFIER
CORRELATED
5K �
DOUBLE
SAMPLER
SAMPLING
A/D
OFFSET ADJUST 2
REFERENCE HOLD 26
TIMING
AND
CONTROL
25 START CONVERT
1 FINE GAIN ADJUST
23 BIT 1 (MSB)
10 BIT 14 (LSB)
24 OUT-OF-RANGE
6 +2.4V REFERENCE OUTPUT
32, 33
DIGITAL GROUND
27
DATA VALID
30 31
AØ A1
Figure 1. ADCDS-1410 Functional Block Diagram
7, 35, 37
ANALOG GROUND
Ḥ
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
Technical enquiries email: [e-mail], tel: [phone]
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