HI1179

Features:

• Resolution 8-Bit . . . . . . . . . . . . . . . . . . ±0.5 LSB (DNL)
• ENOB at fIN = 1MHz . . . . . . . . . . . . . . . . . . . . . . 7.6 Bits
• Maximum Sampling Frequency . . . . . . . . . . . 35 MSPS
• Low Power Consumption 80mW (at 35 MSPS Typ)
(Reference Current Excluded)
• Built-In Input Clamp Function (DC Restore)
• No Sample/Hold Required
• Internal Voltage Reference
• Input CMOS Compatible
• Three-State TTL Compatible Output
• Single Power Supply . . . . . . . . . . . . . . . . . . . . . . . . .+5V
• Low Input Capacitance (Typ) . . . . . . . . . . . . . . . . . 8pF
• Reference Impedance (Typ) . . . . . . . . . . . . . . . . . 330Ω
• Direct Replacement for Sony CXD1179


Application

• Desktop Video
• Multimedia
• Video Digitizing
• Image Scanners
• Low Cost High Speed Data Acquisition Systems


Pinout




Specifications

Supply Voltage, V_DD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7V
Reference Voltage, V_RT, V_RB . . . . . . . . . . . . . . . . . . . . V_DD to_VSS
 Analog Input Voltage, V_IN. . . . . . . . . . . . . . . . . . . . . . V_DD to_VSS
Digital Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . V_DD to_VSS
Digital Output Voltage, V_OH, V_OL. . . . . . . . . . . . . . . . . .V_DD to_VSS


Description

The HI1179 is an 8-bit CMOS analog-to-digital converter for video use that features a sync clamp function. The adoption of a 2-step parallel method realizes low power consumption and a maximum conversion speed of 35 MSPS, allowing up to 8x over sampling of NTSC and PAL signals.

The HI1179 is available in the Industrial temperature range and is supplied in 32 lead Plastic Metric Quad Flatpack (MQFP) package. For lower sampling rates, refer to the HI1176 data sheet.