HT82V26A データシートの表示（PDF） - Holtek Semiconductor

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HT82V26A

16-Bit CCD/CIS Analog Signal Processor

Holtek Semiconductor 

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

· Correlated Double Sampling

· ±250mV programmable offset

· Input clamp circuitry

Applications

Flatbed document scanners

Film scanners

· 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)

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 out-

puts of tri-linear color CCD arrays. Each channel con-

sists 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 sen-

sors 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 out-

put word that is accessed using two read cycles. The in-

ternal 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

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