Silicon Video, Inc. 2003
PDS0004 Rev. A Subject to change without notice. Page 1 of 10
ELIS-1024
Enhanced High Performance Linear CMOS Image Sensor
The ELIS-1024 image sensor is a high performance, very low noise linear image sensor designed for a
wide variety of applications including:
Spectroscopy
Bar Code Reading
Edge Detection
Contact Scanning
Optical Character Recognition
Encoding
Position Detection
And more.......
Description
The ELIS-1024 Linear Image Sensor consists of an array of high performance, low dark current photo-
diode pixels. The sensor features sample and hold capability, selectable resolution and advanced power
management. The device can operate at voltages as low as 2.8V making it ideal for portable
applications. A key feature over traditional CCD technology is that the device can be read and reread
Non-Destructively, allowing the user to maximize signal to noise and dynamic range. Internal logic
automatically reduces power consumption when lower resolution settings are selected. A low power
standby mode is also available to reduce system power consumption when the imager is not in use.
Key Features
Low Cost
Single Voltage Operation, Wide Operating Range
Selectable Resolutions of 1024, 512, 256 and 128 pixels
Very Low Power via Intelligent Power Management and Low-Power Standby Mode
Sample and Hold
Full Frame Shutter and Dynamic Pixel Reset (DPR) Modes
High Sensitivity
High Signal to Noise, very low dark current
Non-Destructive Read mode, extremely low noise capable via signal averaging
Completely Integrated Timing and Control
P/N: ELIS-1024A-LG
16-pin LCC package
Silicon Video Inc.
P.O. Box 4902, Ithaca, NY 14852-4902,
.
TEL: 607.756.5200
,
FAX: 607.756.5319
www.siliconvideo.biz
,
sales@siliconvideo.biz
Silicon Video, Inc. 2003
PDS0004 Rev. A Subject to change without notice. Page 2 of 10
FUNCTIONAL BLOCK DIAGAM
PIN DESCRIPTION 16-Pin LCC Package
1, 12 AGND
Analog Ground
2, 11 AVDD
Analog Power
3
DATA
Input
Start Readout
4
RST
Input
Reset
5
M0
Input
Bin Select Bit 0
6
M1
Input
Bin Select Bit 1
7
SHT
Input
Shutter
8, 9
N/C
No Connection
10
VOUT
Output
Analog Video Output (requires external pull-up resistor)
13
RM
Input
Reset Mode: RM = 0 for frame mode, RM = 1 for DPR mode
14
DVDD
Digital Power
15
DGND
Digital Ground
16
CLK
Input
Master Clock (@ pixel rate)
Silicon Video, Inc. 2003
PDS0004 Rev. A Subject to change without notice. Page 3 of 10
Electro-Optical Characteristics
Specs given at 24
o
C, 5.0V, 1MHz clock with 50% duty cycle and a 3200K light source unless otherwise noted.
Parameter
Min
Typical Max
Units
Supply Voltage
2.80
5.0
5.5
V
Supply Current (see Note 1): Res = 1024
Res = 512
Res = 256
Res = 128
20.0
11.0
6.5
4.0
mA
Standby Current
25
A
Input High Logic Level
V
DD
-0.6V
V
Input Low Logic Level
0.6
V
Clock Frequency/Pixel Read Rate (see Note
3)
1.0
1000
30,000
kHz
External Pull-up Load
5000
Output Voltage at Saturation (see Note 4)
4.8
V
Output Voltage at Dark
2.1
V
Conversion Gain: Res = 1024
Res = 512
Res = 256
Res = 128
0.83
0.98
1.18
1.51
V/e
-
Full Well:(note 7) Res = 1024
Res = 512
Res = 256
Res = 128
3.26
2.77
2.28
1.79
Me
-
Dynamic Range (note 7)
71
dB
Pixel Non-Uniformity Dark
0.5
%Sat
Linearity (see Note 2)
0.8
%
Output due to Dark Current (note 6)
8
mV/s
Fill Factor
100
%Area
Absolute QE at peak (675nm)
60
%
Read Noise (see Note 5)
0.8
mVrms
Notes
1
.
Includes 5k load resistor and measured at dark. Increased speed increases power consumption.
2. Pixel average from 5% - 75% saturation.
3. Specs given at pixel read rates of 1 MHz at 24
o
C. At greater read rates MTF and Dynamic
Range begin to degrade. Higher speeds may not be possible at lower supply voltages.
4. At supply voltages less than saturation voltage, Vout is clipped by supply, no load applied.
5. Temporal rms noise @ 1 MHz pixel rate and 500kHz video bandwidth filter applied, values
are typical and may vary. Higher Dynamic Range is possible with lower pixel rates and
bandwidths.
6. Output due to dark current changes approximately 1.4mV/
o
C.
7. Values are internally limited.
Silicon Video, Inc. 2003
PDS0004 Rev. A Subject to change without notice. Page 4 of 10
Absolute maximum ratings, T
A
= 25C unless otherwise noted, see Note 1, below.
Supply voltage range, V
DD
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V to 6.0 V
Digital input current range, I
I
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 mA to 16 mA
Operating case temperature range, T
C
(see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0C to 70C
Operating free-air temperature range, T
A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0C to 50C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20C to 85C
Humidity range, RH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0-100%, non-condensing
Lead temperature 1.5 mm (0.06 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235C
Exceeding the ranges specified under "absolute maximum ratings" can damage the device. The values given are for stress ratings
only. Operation of the device at conditions other than those indicated under "recommended operating conditions" is not implied.
Exposing the device to absolute maximum rated conditions for extended periods may affect device reliability and performance.
NOTES: 1. Voltage values are with respect to the device GND terminal.
2. Case temperature is defined as the surface temperature of the package measured directly over the integrated circuit.
QE RESPONSE
0.0000
0.2000
0.4000
0.6000
0.8000
1.0000
1.2000
300
375
450
525
600
675
750
825
900
975 1050
Wavelength
Normalized
Note: Data below 350nm not measured, but device is sensitive to 200 nm. The QE peaks at 675nm. Shown for un-filtered
and un-covered device.
Silicon Video, Inc. 2003
PDS0004 Rev. A Subject to change without notice. Page 5 of 10
Resolution Selection
By setting the M0 and M1 inputs as indicated in Table 1, several effective resolutions can be realized.
The effective imager length is 7.987mm regardless of the selected resolution. Internally, the device has
1024 pixels. As the resolution decreases the effective pixel area increases as in Table 1. When the
resolution is set to 512, the photodiodes of pixels 1 and 2 are averaged and output as a single value,
pixels 3 and 4 are averaged and output as a single value, and so on. If set to 256 resolution, then pixels
1 through 4 are averaged and output as a single value, 5 through 8 are averaged and output as a single
value, and so on. The internal control logic determines the resolution and always outputs a valid pixel
per clock cycle. For example, if the imager is selected for 256-pixel resolution, then only 256 clock
cycles are needed to read out the imager once DATA is set. Thus, for lower resolutions higher frame
rates are possible as indicated in Table 1.
Table 1: Resolution Select.
M1
M0
Resolution
Effective Pixel Size
Frame Rate @ 1MHz Clock
(frames/s)
0
0
1024
7.8 x 125
m
976
0
1
512
15.6 x 125
m
1953
1
0
256
31.2 x 125
m
3906
1
1
128
64.4 x 125
m
7812
Power Management and Standby Mode
This device incorporates internally controlled power management features and an externally controlled
low-power Standby Mode. When resolutions lower than 1024-pixels are selected, internal logic disables
the unused amplifiers reducing the power consumption. Utilizing the existing external signals RST and
DATA a low-power Standby Mode is possible. When RST and DATA are simultaneously held high the
entire imager is put into Standby Mode. In this mode all internal amplifiers are disabled, the internal
clocks are stopped and the output amplifier is also disabled. The clock can be held low or high or
remain running while the imager is held in standby.
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