Datasheet

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iC-LF1401

128x1 Linear Image Sensor

Rev A3, Page 1/9

FEATURES

♦ 128 active photo pixels of 56 µm at a 63.5 µm pitch (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 128 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

♦ Pin-to-pin compatible with TSL1401

APPLICATIONS

♦ Optical line image sensors

♦ CCD substitute

PACKAGES

OLGA LF2C OBGA™ LF3C

Die size (8.5mmx1.6 mm)

BLOCK DIAGRAM

DIS

Bit 3

VHE

ONE

Control

Bit 1

MULTIPLEXER

CONTROL AND SHIFT REGISTER

PIXEL

PIXOI

Pixel 1

NRCI SNH128

Bit 127

RPIX(1:128)

SNH

ACTIVE PIXELS

OUTPUT

Sample and Hold

Bit 2

BIAS

Pixel 2

AMPLIFIER

Pixel 128

Bit 128

PIXEI

REF

VHO

AGND

CLK

GND

RSET

TPVCC VDD

iC−LF

Summary of content (9 pages)

PAGE 1
iC-LF1401 128x1 Linear Image Sensor Rev A3, Page 1/9 FEATURES APPLICATIONS ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ Optical line image sensors ♦ CCD substitute 128 active photo pixels of 56 µm at a 63.
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iC-LF1401 128x1 Linear Image Sensor Rev A3, Page 2/9 DESCRIPTION iC-LF1401 is an integrating light-to-voltage converter with a line of 128 pixels pitched at 63.5 µm (center-tocenter distance). Each pixel consists of a 56.4 µm x 200 µm photodiode and an integration capacitor with a sample-and-hold circuit. The integrated control logic makes operation very simple, with only a start and clock signal necessary. A third control input (DIS) enables the integration to be suspended at any time (electronic shutter).
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iC-LF1401 128x1 Linear Image Sensor Rev A3, Page 3/9 PACKAGES OLGA LF2C, OBGA™ LF3C PIN CONFIGURATION OLGA LF2C (top view) PIN FUNCTIONS No.
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iC-LF1401 128x1 Linear Image Sensor Rev A3, Page 4/9 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 Analog Supply Voltage -0.3 6 V G003 V() Voltage at SI, CLK, DIS, RSET, TP, AO -0.3 VCC + 0.
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iC-LF1401 128x1 Linear Image Sensor Rev A3, Page 5/9 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 VCC Analog Supply Voltage Range 4.5 5.
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iC-LF1401 128x1 Linear Image Sensor Rev A3, Page 6/9 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.
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iC-LF1401 128x1 Linear Image Sensor Rev A3, Page 7/9 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 8
iC-LF1401 128x1 Linear Image Sensor Rev A3, Page 8/9 126 127 128 Pix126 Pix127 Pix128 1 2 3 Pix1 Pix2 Pix3 4 ... 127 128 129 130 131 CLK SI V(AO) Pix127 ... Pix128 Pix1 SNH SNH128 NRCI integration time Figure 6: Clock pulse continued without giving a new integration start signal Operation with the shutter function Integration can be suspended at any time via pin DIS, i.e.
PAGE 9
iC-LF1401 128x1 Linear Image Sensor Rev A3, Page 9/9 ORDERING INFORMATION Type Package Order Designation iC-LF OLGA LF2C OBGA™ LF3C - iC-LF OLGA LF2C iC-LF OBGA LF3C iC-LF 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.