
4-1110
August 1997
HI1179
8-Bit, 35 MSPS, Video A/D Converter
Features
Resolution 8-Bit . . . . . . . . . . . . . . . . . .
±
0.5 LSB (DNL)
ENOB at f
IN
= 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) . . . . . . . . . . . . . . . . . 330
Direct Replacement for Sony CXD1179
Applications
Desktop Video
Multimedia
Video Digitizing
Image Scanners
Low Cost High Speed Data Acquisition Systems
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.
Pinout
HI1179 (MQFP)
TOP VIEW
Ordering Information
PART
NUMBER
TEMP. RANGE
(
o
C)
PACKAGE
PKG. NO.
HI1179JCQ
-40 to 85
32 Ld MQFP
Q32.7x7-S
HI1179-EV
25
Evaluation Board
1
2
3
4
5
6
7
8
(LSB) D0
D1
D2
D3
D4
D5
D6
(MSB) D7
V
RB
AV
SS
AV
SS
V
IN
AV
DD
AV
DD
V
RT
V
RTS
N
D
S
O
C
D
S
C
V
R
V
R
32 31 30 29 28 27 26 25
24
23
22
21
20
19
18
17
9 10 11 12 13 14 15 16
N
D
D
D
D
C
T
C
A
D
T
File Number
3666.3
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Copyright Intersil Corporation 1999