HT82V26A -- 16-Bit CCD/CIS Analog Signal Processor

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.

Features

  • Operating voltage: 5V
  • 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
  • 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 process)

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