dr-4k-7 emva1288 v1.1 - cmosis - cmos image sensors · awaiba dr-4k-7 emva v1.1 09.04.2008...

AWAIBA DR-4k-7 EMVA v1.1

09.04.2008 www.awaiba.com

Characterization results DR-4k-7

digital highspeed linescan sensor

according to

EMVA1288 Standard Revision 2.0 www.standard1288.org

Revision 1.1 09.04.2008

AWAIBA Lda Maderia Tecnopolo 9020-105 Funchal Portugal



Introduction In the following characterization data according the EMVA1288 Standard for the DR-4k-7 digital line scan sensor is given. Numerical data is presented for several operation points, in order to emphasis the respective interaction and trade off’s between the several sensor features. The respective graphical data is presented for 3 of the operating points. On request full graphical data for the other operating points can be supplied. The presented data is from a random picked single sample. SN#0036. Besides the data according EMVA1288 further data is presented, namely the temporal noise using off chip correction of the pixel value by the average of the dark pixels implemented on chip, which brings a significant improvement of temporal noise. The respective parameters are named “lincorr”. It is strongly recommended that the user of the sensor implements this correction, however as it is not implemented on chip this possible improvement is not taken in account for computation of the EMVA1288 data such as SNR and DYN. Thus if the user implements this correction a significant improvement of these parameters compared to the here published ones can be obtained.



General Information: Vendor Name AWAIBA Lda Model Name DR-4k-7 Sensor Type CMOS Digital Line Scan Sensor Sensor diagonal in mm 28.67mm Indication lens category (inch) -- Resolution ( width x height) 4096 x 1 Pixel size 7um x 7um Readout type 4 Tap 40MHz 12bit parallel Shutter type ( Rolling/ Global) Global Shutter Overlap capabilities (Integration overlaps Readout)

Interleaved integration & Readout

Maximum frame rate at given operation point

9765 lines / second

Type of presented data (typical /guaranteed/ guaranteed over live time)

typical

Definition of "typical" (number of samples etc..)

1 random sample

Other relevant information (interface type etc...)

12 bit digital parallel

Photodiode type (see QE plot) Standard diode



Description of operation point The following settings are common to all operating points presented: Main Clock Frequency 40MHz Line Period 205 us ADC End Range 0x84 -> 4224 DN Illumination Wavelength 625nm On chip ADC offset subtraction Enabled Config. Register 1* 00100001 Config. Register 2* 00 x 10000 *x denotes bits that change for different operation points Using these settings, several combinations of analogue gain and ADC gain are used and presented in the following table.


09.04.2008

Numerical data according operation point all measurements at 625nm Operation Point A B C D E F Inv. ADC Gain (ADC step) 0x20 0x20 0x08 0x08 0x10 0x10 Analogue Gain X1 X4 X1 X4 X1 X4 Conversion Gain [DN/e-] 0.0886 0.3974 0.2220 0.9208 0.1521 0.6486 QE* 49.58% 44.92% 50.19% 47.84% 49.81% 45.32% Saturation capacity [e-] 47’737 8’995 16’299 4’054 24’959 5’046 Responsivity [DN/nJ/cm2]** 67.9 276.1 172.3 681.4 117.2 454.6 Temporal dark noise [DN] 2.2 2.9 5.1 7.3 3.5 5.1 Temporal dark noise [e-] 24.2 7.3 22.9 7.8 22.8 7.9 Absolute sensitivity threshold [p/pix] 49 16 46 16.5 45.7 17.4 Temporal dark noise lincor [DN]** 1.1 2.3 2.6 5.7 1.8 4.1 Temporal dark noise lincor [e-]** 12.9 6.0 11.8 6.2 11.8 6.3 Absolute sensitivity threshold lincor [p/pix]** 26.0 13.4 23.6 13.0 23.7 13.8 SNR emva1288 193 88.9 125.7 63.4 157 70.5 SNR emva1288[dB] 46 39 42 36 44 37 DYN (standard SNR) 1972 1232 712 515 1097 641 DYN [dB] (standard SNR in dB) 65.9 61.8 57 54.2 60.8 56 DSNU 1288 [e-] 13.4 7.3 12.9 7.4 13.0 7.6 DSNU [DN] (standard deviation of mean dark image)** 1.4 3.1 3.3 7.4 2.3 5.9 PRNU 1288 1.9% 1.7% 1.7% 1.5% 1.8% 1.7% Dark Current 30C [e-/ms] 3 3 3 3 3 3 Dark current doubling temperature [C] 11.5 11.5 11.5 11.5 11.5 11.5 *The EMVA 1288 methodology shows a high sensitivity of conversion gain and QE results on measurement and truncation errors. QE should be assumed identical for all operation points. **Additional information parameters not comprised in EMVA1288 Standard


09.04.2008

Graphical data for operation points A;B;E A B E Inverse ADC Gain (ADC step) 0x20 Inverse ADC Gain (ADC step) 0x20 Inverse ADC Gain (ADC step) 0x10 Analogue Gain x1 Analogue Gain x4 Analogue Gain x1

Photoresponse Plot

0.00E+000

5.00E+002

1.00E+003

1.50E+003

2.00E+003

2.50E+003

3.00E+003

3.50E+003

4.00E+003

4.50E+003

0.00E+000 5.00E+004 1.00E+005

Nbr Photons

DN

[12b

]

0.00E+000 5.00E-005 1.00E-004 1.50E-004

Integration Time [s]

Dark SignalBright SignalDark corr Signal

Photoresponse Plot

0.00E+000

5.00E+002

1.00E+003

1.50E+003

2.00E+003

2.50E+003

3.00E+003

3.50E+003

4.00E+003

4.50E+003

0.00E+000 1.00E+004 2.00E+004

Nbr PhotonsD

N [

12b

]

0.00E+000 5.00E-005 1.00E-004 1.50E-004


Dark Signal

Bright SignalDark corr Signal

Photoresponse Plot

0.00E+000

5.00E+002

1.00E+003

1.50E+003

2.00E+003

2.50E+003

3.00E+003

3.50E+003

4.00E+003

4.50E+003

0.00E+000 2.00E+004 4.00E+004

Nbr Photons

DN

[12b

]

0.00E+000 5.00E-005 1.00E-004 1.50E-004


Dark SignalBright SignalDark corr Signal

Variance Plot

0.00E+000

5.00E+001

1.00E+002

1.50E+002

2.00E+002

2.50E+002

3.00E+002

3.50E+002

4.00E+002

4.50E+002

0.00E+000 5.00E+004 1.00E+005

Nbr Photons

Var

ain

ce [D

N² /

12b

it]

0.00E+000 5.00E-005 1.00E-004 1.50E-004


Dark Variance

BrightVariance

Dark corrVariance

Variance Plot

0.00E+000

2.00E+002

4.00E+002

6.00E+002

8.00E+002

1.00E+003

1.20E+003

1.40E+003

1.60E+003

1.80E+003

0.00E+000 1.00E+004 2.00E+004

Nbr Photons

Var

ain

ce [D

N² /

12b

it]

0.00E+000 5.00E-005 1.00E-004 1.50E-004


DarkVariance

BrightVariance

Dark corrVariance

Variance Plot

0.00E+000

1.00E+002

2.00E+002

3.00E+002

4.00E+002

5.00E+002

6.00E+002

0.00E+000 2.00E+004 4.00E+004

Nbr Photons

Var

ain

ce [D

N² /

12b

it]

0.00E+000 5.00E-005 1.00E-004 1.50E-004


Dark Variance

BrightVariance

Dark corrVariance


09.04.2008

Photon Transfer Plot

0

50

100

150

200

250

300

350

400

450

0.00E+000 1.00E+003 2.00E+003 3.00E+003 4.00E+003

Dark corr Signal [DN]

Var

ainc

e [D

N²

/ 12b

it]

Dark corr VarianceLinear Fit


0

200

400

600

800

1000

1200

1400

1600

1800

0.00E+000 1.00E+003 2.00E+003 3.00E+003 4.00E+003


Var

ainc

e [D

N²

/ 12b

it]

Dark corr VarianceLinear Fit


0

100

200

300

400

500

600

700

0 1000 2000 3000 4000


Var

ain

ce [

DN

² / 1

2bit

]

Dark corrVariance

Linear Fit

Spectrogram Plot

0.00E+000

1.00E+001

2.00E+001

3.00E+001

4.00E+001

5.00E+001

6.00E+001

7.00E+001

8.00E+001

9.00E+001

0.00E+000 1.00E+003 2.00E+003 3.00E+003 4.00E+003

Image Mean [DN]

Dar

k co

rr S

td S

pat

ial N

ois

e [D

N]

Dark corrSpatial Variance

Fit

Spectrogram Plot

0.00E+000

1.00E+001

2.00E+001

3.00E+001

4.00E+001

5.00E+001

6.00E+001

7.00E+001

8.00E+001

0 1000 2000 3000 4000

Image Mean [DN]

Dar

k co

rr S

td S

pat

ial N

ois

e [D

N]

Dark corrSpatialVariance

Fit

Spectrogram Plot

0.00E+000

1.00E+001

2.00E+001

3.00E+001

4.00E+001

5.00E+001

6.00E+001

7.00E+001

8.00E+001

0 1000 2000 3000 4000

Image Mean [DN]

Dar

k co

rr S

td S

pat

ial N

ois

e [D

N]

Dark corrSpatial Variance

Fit

Spectrogram Plot Spatial Dark Noise

0

1

2

3

4

5

6

7

8

9

0.00E+000 5.00E-005 1.00E-004 1.50E-004 2.00E-004

Std. Spatial dark Noise [DN]

Tin

t [s

]

Std SpatDark


0

1

2

3

4

5

6

7

8

9

0.00E+000 5.00E-005 1.00E-004 1.50E-004 2.00E-004

Tint [s]

Std

. Sp

atia

l dar

k N

ois

e [D

N]

Std SpatDark


0

0.5

1

1.5

2

2.5

3

3.5

4

0.0E+00 4.0E-05 8.0E-05 1.2E-04 1.6E-04 2.0E-04

Tint [s]

Std

. Sp

atia

l dar

k N

ois

e [D

N]

Std SpatDark


09.04.2008

Spectrogram Non Whiteness coeffycients

0

2

4

6

8

10

12

14

0.00E+000 5.00E-005 1.00E-004 1.50E-004 2.00E-004

Tint [s]

No

nw

hit

enes

s co

effy

cien

t

F totalDark

F SpatialDark

F Total

F Spatial


0

2

4

6

8

10

12

14

0.0E+00 5.0E-05 1.0E-04 1.5E-04 2.0E-04

Tint [s]

No

nw

hit

enes

s co

effy

cien

t

F totalDark

F SpatialDark

F Total

F Spatial


0

1

2

3

4

5

6

7

8

9

10

0.0E+00 5.0E-05 1.0E-04 1.5E-04 2.0E-04

Tint [s]

No

nw

hit

enes

s co

effy

cien

t F totalDark

F SpatialDark

F Total

F Spatial

Spectrogram Total Noise in DN 12 bit

0

50

100

150

200

250

300

350

400

450

500

0 1000 2000 3000 4000

Spatial Frequency [1/pixel]

Am

plit

ud

e S

pec

tru

m [

DN

]

Amplitude DarkTotal [DN]

Amplitude 0A50Total [DN]



0

100

200

300

400

500

600

700

800

900

0 1000 2000 3000 4000


Am

plit

ud

e S

pec

tru

m [D

N]





0

100

200

300

400

500

600

700

800

900

0 1000 2000 3000 4000


Am

plit

ud

e S

pec

tru

m [D

N]




Spectrogram Total Noise in Photons

0

5000

10000

15000

20000

25000

0 1000 2000 3000 4000


Am

plit

ud

e S

pec

tru

m [

p]

Amplitude1A40 Total [p]

AmplitudeDark Total [p]



0

2000

4000

6000

8000

10000

12000

0 1000 2000 3000 4000


Am

plit

ud

e S

pec

tru

m [

p]

Amplitude 1A40Total [p]

Amplitude DarkTotal [p]



0

5000

10000

15000

20000

25000

0 1000 2000 3000 4000


Am

plit

ud

e S

pec

tru

m [

p]





09.04.2008

Spectrogram Total Noise in DN 12 bit zoom

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

0 1000 2000 3000 4000


Am

plit

ud

e S

pec

tru

m [D

N]



0

1

2

3

4

5

6

7

0 1000 2000 3000 4000


Am

plit

ud

e S

pec

tru

m [

DN

]



0

1

2

3

4

5

6

7

0 1000 2000 3000 4000


Am

plit

ud

e S

pec

tru

m [

DN

]


Spectrogram Total Noise in Photons zoom

0

50

100

150

200

250

300

350

400

450

500

0 1000 2000 3000 4000


Am

plit

ud

e S

pec

tru

m [

p]

Amplitude1A40 Total [p]AmplitudeDark Total [p]



0

50

100

150

200

250

300

350

400

450

500

0 1000 2000 3000 4000


Am

plit

ud

e S

pec

tru

m [

p]


Amplitude DarkTotal [p]



0

50

100

150

200

250

300

0 1000 2000 3000 4000


Am

plit

ud

e S

pec

tru

m [

p]




Spectrogram Spatial Noise in DN 12 bit

0

50

100

150

200

250

300

350

400

450

500

0 1000 2000 3000 4000

Spetial Frequency [1/pixel]

Am

plit

ud

e S

pec

tru

m [D

N]

Amplitude DarkSpatial [DN]

Amplitude 0A50Spatial [DN]



0

100

200

300

400

500

600

700

800

900

0 1000 2000 3000 4000


Am

plit

ud

e S

pec

tru

m [D

N]





0

100

200

300

400

500

600

700

800

900

0 1000 2000 3000 4000


Am

plit

ud

e S

pec

tru

m [D

N]





09.04.2008

Spectrogram Spatial Noise in photons

0

2000

4000

6000

8000

10000

12000

0 1000 2000 3000 4000Spetial Frequency [1/pixel]

Am

plitu

de S

pect

rum

[p]

Amplitude DarkSpatial [p]

Amplitude 0A50Spatial [p]



0

500

1000

1500

2000

2500

3000

3500

4000

4500

5000

0 1000 2000 3000 4000


Am

plit

ud

e S

pec

tru

m [p

]





0

2000

4000

6000

8000

10000

12000

0 1000 2000 3000 4000


Am

plit

ud

e S

pec

tru

m [

p]




Spectrogram Spatial Noise in DN 12 bit zoom

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

0 1000 2000 3000 4000


Am

plit

ud

e S

pec

tru

m [D

N]

AmplitudeDark Spatial[DN]


0

1

2

3

4

5

6

7

0 1000 2000 3000 4000


Am

plit

ud

e S

pec

tru

m [D

N]



0

1

2

3

4

5

6

7

0 1000 2000 3000 4000


Am

plit

ud

e S

pec

tru

m [D

N]

AmplitudeDark Spatial[DN]

Spectrogram Spatial Noise in photons zoom

0

50

100

150

200

250

300

350

400

450

500

0 1000 2000 3000 4000


Am

plit

ud

e S

pec

tru

m [

p]





0

50

100

150

200

250

300

350

400

450

500

0 1000 2000 3000 4000


Am

plit

ud

e S

pec

tru

m [

p]





0

50

100

150

200

250

0 1000 2000 3000 4000


Am

plitu

de S

pect

rum

[p] Amplitude Dark

Spatial [p]




09.04.2008

Graphical data independent of operation point

Idark DR-4k-7 C log

1.0000

10.0000

100.0000

300 310 320 330 340 350 360 370 380

T [K]

Idar

k [e

-/m

s]

Total QE DR-4k-500

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

350 450 550 650 750 850 950

Wavelength [nm]

e-/p

h [

%] QE total [%]

standardQE total [%]NIR enhanced

dr-4k-7 emva1288 v1.1 - cmosis - cmos image sensors · awaiba dr-4k-7 emva v1.1 09.04.2008...

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