TLC8188

10-BIT, 4 MSPS, CIS/LINEAR CCD SENSOR PROCESSOR

SLAS177A – DECEMBER 1997 – REVISED SEPTEMBER 1998

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POST OFFICE BOX 655303

description

The TLC8188 is a highly-integrated monolithic

analog signal processor/digitizer designed to

interface the contact image sensor (CIS) and linear charge-coupled device (CCD) image sensors in scanner

applications. The input of the TLC8188 allows direct connection to the CIS and direct ac coupling of the linear

CCD. The TLC8188 performs all the analog processing functions necessary to maximize the dynamic range,

correct various errors associated with the CIS and the linear CCD sensors, and then digitize the results with an

on-chip analog-to-digital converter (ADC). The key components of the TLC8188 include: input clamp circuitry

and a correlated double sampler (CDS), a programmable gain amplifier (PGA) with auto-cycling gain control, a

programmable offset correction controlled by a digital-to-analog converter (DAC), a 10-bit, 4 MSPS pipeline

ADC, a bidirectional parallel bus and a three-wire serial port for easy microprocessor interface, and internal

reference voltages.

Designed in advanced CMOS process, the TLC8188 operates from a single 5-V power supply and its digital

interface is 3 V compatible. The normal power consumption of the TLC8188 is just 190 mW.

Fully integrated analog processing circuitry, high throughput rate, single supply operation and low cost make the

TLC8188 an ideal CIS/linear CCD sensor interfacing solution for imaging applications such as scanners and

multifunctional office equipment (printer/scanner/facsimile/copier).

The device is available in a 32-pin TSSOP package and is specified over the 0

°C to 70°C operating temperature

range.

AVAILABLE OPTIONS

PACKAGED DEVICE

TA

SMALL OUTLINE

(DA)

0

°C to 70°C

TLC8188CDA

Copyright

© 1998, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

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OP0

OP1

OP2

OP3

OP4

DIGND

OP5

OP6

OP7

OP8

OP9

DGND

ADCCLK

SCK/RNW

RPO

RMO

RIN

GIN

BIN

AGND

CLAMP

SR

SV

MA0/ACYC

MA1

OE

NRESET

SEN/STB

SDI/DNA

DA PACKAGE

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