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HI1172 Schematic ( PDF Datasheet ) - Intersil Corporation

Teilenummer HI1172
Beschreibung Video A/D Converter
Hersteller Intersil Corporation
Logo Intersil Corporation Logo 




Gesamt 7 Seiten
HI1172 Datasheet, Funktion
HI1172
August 1997
6-Bit, 20 MSPS,
Video A/D Converter (CMOS)
Features
Description
• Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-Bit
• Maximum Sampling Frequency . . . . . . . . . . . 20 MSPS
• Low Power Consumption at 20 MSPS (Typ)
(Reference Current Excluded) . . . . . . . . . . . . . . .40mW
• Built-In Sample and Hold Circuit
• Three-State TTL Compatible Output
• Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . 5V Single
• Low Input Capacitance . . . . . . . . . . . . . . . . . . . . . . . 4pF
• Reference Impedance . . . . . . . . . . . . . . . . . . 250(Typ)
Applications
HI1172 is a 6-bit, CMOS A/D converter for video use. The
adoption of a 2-step parallel conversion achieves speeds of
20 MSPS minimum, 35 MSPS typical.
Ordering Information
PART
NUMBER
HI1172JCP
HI1172JCB
TEMP.
RANGE (oC)
PACKAGE
-20 to 75 16 Ld PDIP
-20 to 75 16 Ld SOIC
PKG. NO.
E16.3A-S
M16.2-S
• Video Digitizing
• Wireless Communications
Pinout
www.DataSheet4U.com
HI1172
(PDIP, SOIC)
TOP VIEW
D0 1
D1 2
D2 3
D3 4
D4 5
D5 6
CLK 7
DVSS 8
16 AVSS
15 DVDD
14 AVDD
13 VRB
12 VIN
11 VRT
10 AVDD
9 DVDD
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999
4-1062
File Number 4102.1






HI1172 Datasheet, Funktion
Timing Diagrams
HI1172
CLOCK
ANALOG INPUT
tPW1 tPW0
N
DATA OUTPUT
N-3
N+1
N-2
N-2
N-1
tD = 18ns
FIGURE 4. TIMING CHART 1
N+3
N
N+4
N+1
ANALOG INPUT
VI (1)
VI (2)
VI (3)
VI (4)
EXTERNAL CLOCK
UPPER COMPARATOR BLOCK
UPPER DATA
S (1)
C (1) S (2) C (2)
S (3) C (3)
S (4) C (4)
MD (0)
MD (1)
MD (2)
MD (3)
LOWER REFERENCE VOLTAGE
RV (0)
RV (1)
RV (2)
RV (3)
LOWER COMPARATOR BLOCK A
LOWER DATA A
S (1)
H (1)
LD (-1)
C (1)
S (3)
H (3)
LD (1)
C (3)
LOWER COMPARATOR BLOCK B
LOWER DATA B
H (0)
C (0) S (2)
LD (-2)
H (2)
LD (0)
C (2)
S (4)
H (4)
LD (2)
DIGITAL OUTPUT
OUT (-2)
OUT (-1)
FIGURE 5. TIMING CHART 2
OUT (0)
OUT (1)
4-1067

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