Datasheet

ManualsBrandsIC Haus ManualsCCD Line ArraysLine sensor LFL1C

preliminary preliminary

iC-LFL1402

256x1 LINEAR IMAGE SENSOR

Rev A3, Page 1/8

FEATURES

♦ 256 active photo pixels of 56µm at a gap and distortion free

pitch of 63.5 µm (400 DPI)

♦ Integrating L-V conversion followed by a sample & hold circuit

♦ High sensitivity and uniformity over wavelength

♦ High clockrates of up to 5 MHz

♦ Only 256 clocks required for readout

♦ Shutter function enables ﬂexible integration times

♦ Glitch-free analogue output

♦ Push-pull output ampliﬁer

♦ 5 V single supply operation

♦ Can run off external bias to reduce power consumption

♦ Function equivalent to TSL1402 (serial mode)

APPLICATIONS

♦ Optical line sensors

♦ CCD substitute

PACKAGES

OBGA™ LFL1C

BLOCK DIAGRAM

DIS

Bit 3

VHE

ONE

Control

Bit 1

MULTIPLEXER

CONTROL AND SHIFT REGISTER

PIXEL

PIXOI

Pixel 1

NRCI

SNH256

Bit 255

RPIX(1:256)

SNH

ACTIVE PIXELS

OUTPUT

Sample and Hold

Bit 2

BIAS

Pixel 2

AMPLIFIER

Pixel 256

Bit 256

PIXEI

REF

VHO

AGND

CLK

GND

RSET

TPVCC VDD

LFL1402

Summary of content (8 pages)

PAGE 1
ar y n i im prel iC-LFL1402 256x1 LINEAR IMAGE SENSOR Rev A3, Page 1/8 FEATURES APPLICATIONS ♦ 256 active photo pixels of 56 µm at a gap and distortion free pitch of 63.
PAGE 2
ar y n i im prel iC-LFL1402 256x1 LINEAR IMAGE SENSOR Rev A3, Page 2/8 DESCRIPTION iC-LFL1402 is an integrating light-to-voltage converter with a single line of 256 pixels pitched at 63.5 µm (center-to-center distance). Due to the monolithical integration there is no pixel-gap or pitch distortion whatsoever. Each pixel consists of a 56.4 µm x 200 µm photodiode, an integration capacitor and a sample and hold circuit.
PAGE 3
iC-LFL1402 256x1 LINEAR IMAGE SENSOR ar y n i im prel Rev A3, Page 3/8 ABSOLUTE MAXIMUM RATINGS Beyond these values damage may occur; device operation is not guaranteed. Item No. Symbol Parameter Conditions Fig. Unit Min. Max. G001 VDD Digital Supply Voltage -0.3 6 V G002 VCC Analogue Supply Voltage -0.3 6 V G003 V() Voltage at SI, CLK, DIS, RSET, TP, AO -0.3 VCC + 0.
PAGE 4
iC-LFL1402 256x1 LINEAR IMAGE SENSOR ar y n i im prel Rev A3, Page 4/8 ELECTRICAL CHARACTERISTICS Operating Conditions: VCC = VDD = 5 V ±10%, RSET = GND, Tj = -25...85 °C unless otherwise noted Item No. Symbol Parameter Conditions Tj °C Fig. Unit Min. Typ. Max. Total Device 001 VDD Digital Supply Voltage Range 4.5 5.5 002 003 VCC Analogue Supply Voltage Range 4.5 5.
PAGE 5
ar y n i im prel iC-LFL1402 256x1 LINEAR IMAGE SENSOR Rev A3, Page 5/8 OPTICAL CHARACTERISTICS: Diagrams 100 % 90 80 70 60 50 40 30 20 10 400 600 800 1000 nm Figure 1: Relative spectral sensitivity OPERATING REQUIREMENTS: Logic Operating Conditions: VCC = VDD = 5 V ±10%, Tj = -25...85 °C input levels lo = 0...0.45 V, hi = 2.4 V...VCC, see Fig. 2 for reference levels Item No. Symbol Parameter Conditions Fig. Unit Min. Max.
PAGE 6
ar y n i im prel iC-LFL1402 256x1 LINEAR IMAGE SENSOR Rev A3, Page 6/8 DESCRIPTION OF FUNCTIONS Normal operation Following an internal power-on reset the integration and hold capacitors are discharged and the sample and hold circuit is set to sample mode. A high signal at SI and a rising edge at CLK triggers a readout cycle and with it a new integration cycle.
PAGE 7
ar y n i im prel iC-LFL1402 256x1 LINEAR IMAGE SENSOR Rev A3, Page 7/8 254 255 256 Pix254 Pix255 Pix256 1 2 3 Pix1 Pix2 Pix3 4 ... 255 256 257 258 259 CLK SI V(AO) Pix255 ... Pix256 Pix1 SNH SNH256 NRCI Integration Time Figure 6: Clock pulse continued without giving a new integration start signal Operation with the shutter function Integration can be stopped at any time via pin DIS, i.e.
PAGE 8
iC-LFL1402 256x1 LINEAR IMAGE SENSOR ar y n i im prel Rev A3, Page 8/8 ORDERING INFORMATION Type Package Order Designation iC-LFL1402 OBGA™ LFL1C - iC-LFL OBGA LFL1C iC-LFL Chip For information about prices, terms of delivery, other packaging options etc. please contact: iC-Haus GmbH Am Kuemmerling 18 D-55294 Bodenheim GERMANY Tel.: +49 (61 35) 92 92-0 Fax: +49 (61 35) 92 92-192 Web: http://www.ichaus.com E-Mail: sales@ichaus.