TSL1402R datasheet(6/17 Pages) AMSCO

6 / 17 page

TSL1402R

256 × 1 LINEAR SENSOR ARRAY WITH HOLD

TAOS041G − NOVEMBER 2011

The LUMENOLOGY

r Company

E 2011, TAOS Inc.

www.taosinc.com

Electrical Characteristics at fclock = 1 MHz, VDD = 5 V, TA = 25°C, λp = 640 nm, tint = 5 ms,

RL = 330 Ω, Ee = 11 μW/cm2 (unless otherwise noted) (see Note 3)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Vout

Analog output voltage (white, average over 256 pixels)

See Note 4

1.6

2.4

Vdrk

Analog output voltage (dark, average over 256 pixels)

Ee = 0

0.1

0.2

PRNU

Pixel response nonuniformity

See Note 5

±10%

Nonlinearity of analog output voltage

See Note 6

±0.4%

Output noise voltage

See Note 7

mVrms

Responsivity

See Note 8

(μJ/cm2)

Analog output saturation voltage

VDD = 5 V, RL = 330 Ω

4.5

4.8

Vsat

Analog output saturation voltage

VDD = 3 V, RL = 330 Ω

2.5

2.8

Saturation exposure

VDD = 5 V, See Note 9

136

nJ/cm2

Saturation exposure

VDD = 3 V, See Note 9

nJ/cm2

DSNU

Dark signal nonuniformity

All pixels, Ee = 0, See Note 10

0.04

0.12

Image lag

See Note 11

0.5%

Supply current

VDD = 5 V, Ee = 0

IDD

Supply current

VDD = 3 V, Ee = 0

IIH

High-level input current

VI = VDD

μA

IIL

Low-level input current

VI = 0

μA

Input capacitance, SI

Input capacitance, CLK

NOTES: 3. All measurements made with a 0.1

μF capacitor connected between VDD and ground.

4. The array is uniformly illuminated with a diffused LED source having a peak wavelength of 640 nm.

5. PRNU is the maximum difference between the voltage from any single pixel and the average output voltage from all pixels of the

device under test when the array is uniformly illuminated at the white irradiance level. PRNU includes DSNU.

6. Nonlinearity is defined as the maximum deviation from a best-fit straight line over the dark-to-white irradiance levels, as a percent

of analog output voltage (white).

7. RMS noise is the standard deviation of a single-pixel output under constant illumination as observed over a 5-second period.

8. Re(min) = [Vout(min) − Vdrk(max)]

÷ (E

× t

int)

9. SE(min) = [Vsat(min) − Vdrk(min)]

× 〈E

× t

int)

÷ [V

out(max) − Vdrk(min)]

10. DSNU is the difference between the maximum and minimum output voltage for all pixels in the absence of illumination.

11. Image lag is a residual signal left in a pixel from a previous exposure. It is defined as a percent of white-level signal remaining after

a pixel is exposed to a white condition followed by a dark condition:

out (IL) *

drk

out (white) *

drk

100

Timing Requirements (see Figure 1 and Figure 2)

MIN

NOM

MAX

UNIT

tsu(SI)

Setup time, serial input (see Note 12)

th(SI)

Hold time, serial input (see Note 12 and Note 13)

Pulse duration, clock high or low

tr, tf

Input transition (rise and fall) time

500

tqt

Pixel charge transfer time

μs

NOTES: 12. Input pulses have the following characteristics: tr = 6 ns, tf = 6 ns.

13. SI must go low before the rising edge of the next clock pulse.

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