TLC8188 Datasheet, PDF (1/12 Pages) Texas Instruments – 10-BIT, 4 MSPS, CIS/LINEAR CCD SENSOR PROCESSOR

TLC8188
10-BIT, 4 MSPS, CIS/LINEAR CCD SENSOR PROCESSOR
SLAS177A – DECEMBER 1997 – REVISED SEPTEMBER 1998
D Supports Both CIS and CCD Sensors
DA PACKAGE
D 10-Bit, 4 MSPS, A/D Converter
(TOP VIEW)
D Differential Nonlinearity Error: ±0.5 LSB Typ
OP0
1
32
RPO
D Integral Nonlinearity Error: ±0.6 LSB Typ
D 8-Bit Offset Correction DAC
D PGA With 6-Bit Gain Resolution
D Auto-cycling Gain and Offset Control
D Single 5-V Supply Operation
D Very Low Power: 190 mW Typical
D Control by Parallel and Serial Interface
OP1
2
OP2
3
OP3
4
OP4
5
DIV_DD
6
DIGND
7
OP5
8
OP6
9
OP7
10
31
RMO
30
RIN
29
GIN
28
BIN
27
AV_DD
26
AGND
25
CLAMP
24
SR
23
SV
D Internal Reference Voltages
D 32-Pin TSSOP Package
description
OP8
11
OP9
12
DV_DD
13
DGND
14
ADCCLK
15
22
MA0/ACYC
21
MA1
20
OE
19
NRESET
18
SEN/STB
The TLC8188 is a highly-integrated monolithic
SCK/RNW
16
17
SDI/DNA
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.
TA
0°C to 70°C
AVAILABLE OPTIONS
PACKAGED DEVICE
SMALL OUTLINE
(DA)
TLC8188CDA
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.
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.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright © 1998, Texas Instruments Incorporated
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