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HT82V26A

Holtek Semiconductor
Part Number HT82V26A
Manufacturer Holtek Semiconductor
Description 16-Bit CCD/CIS Analog Signal Processor
Published May 14, 2010
Detailed Description HT82V26A 16-Bit CCD/CIS Analog Signal Processor Technical Document · Tools Information · FAQs · Application Note Featur...
Datasheet PDF File HT82V26A PDF File

HT82V26A
HT82V26A

Overview
HT82V26A 16-Bit CCD/CIS Analog Signal Processor Technical Document · Tools Information · FAQs · Application Note Features · Operating voltage: 5V (Typ.
) · Low power consumption at 400mW (Typ.
) · Power-down mode: Under 2mA (Typ.
) · 16-bit 30 MSPS A/D converter · Guaranteed won¢t miss codes · 1~6 programmable gain www.
DataSheet4U.
com · Correlated Double Sampling · ±250mV programmable offset · Input clamp circuitry · Internal voltage reference · Multiplexed byte-wide output (8+8 format) · Programmable 3-wire serial interface · 3V/5V digital I/O compatibility · 3-channel operation up to 30 MSPS · 2-channel (Even-Odd) operation up to 30 MSPS · 1-channel operation up to 25 MSPS · 28-pin SSOP/SOP package (lead-free on request) Applications Flatbed document scanners Film scanners Digital color copiers Multifunction peripherals General Description The HT82V26A is a complete analog signal processor for CCD imaging applications.
It features a 3-channel architecture designed to sample and condition the outputs of tri-linear color CCD arrays.
Each channel consists of an input clamp, Correlated Double Sampler (CDS), offset DAC and Programmable Gain Amplifier (PGA), and a high performance 16-bit A/D converter.
The CDS amplifiers may be disabled for use with sensors such as Contact Image Sensors (CIS) and CMOS active pixel sensors, which do not require CDS.
The 16-bit digital output is multiplexed into an 8-bit output word that is accessed using two read cycles.
The internal registers are programmed through a 3-wire serial interface, which provides gain, offset and operating mode adjustments.
The HT82V26A operates from a single 5V power supply, typically consumes 400mW of power.
Rev.
1.
00 1 August 16, 2005 HT82V26A Block Diagram A V D D A V S S R E F T R E F B A V D D A V S S D R V D D D R V S S V IN R C D S + 9 - B it D A C P G A B A N D G A P R e fe re n c e P G A 3 .
1 M U X 1 6 - B it A D C C o n fig u r a tio n R e g is te r M U X R e g is te r 6 R E D G R E E N B L ...


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