1
®
FN3577.8
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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HI1175
8-Bit, 20MSPS, Flash A/D Converter
The HI1175 is an 8-bit, analog-to-digital converter built in a
1.4µm CMOS process. The low power, low differential gain
and phase, high sampling rate, and single 5V supply make
the HI1175 ideal for video and imaging applications.
The adoption of a 2-step flash architecture achieves low
power consumption (60mW) at a maximum conversion
speed of 20MSPS (Min), 35MSPS typical with only a 2.5
clock cycle data latency. The HI1175 also features digital
output enable/disable and a built in voltage reference. The
HI1175 can be configured to use the internal reference or an
external reference if higher precision is required.
Features
• Resolution . . . . . . . . . . . . . . . . . . . . 8-Bit ±0.3 LSB (DNL)
• Maximum Sampling Frequency . . . . . . . . . . . . . .20MSPS
• Low Power Consumption . . . . . . 60mW (at 20MSPS Typ)
(Reference Current Excluded)
• Built-In Sample and Hold Circuit
• Built-In Reference Voltage Self Bias Circuit
• Three-State TTL Compatible Output
• Single +5V Power Supply
• Low Input Capacitance. . . . . . . . . . . . . . . . . . . 11pF (Typ)
• Reference Impedance . . . . . . . . . . . . . . . . . . .300Ω (Typ)
• Evaluation Board Available (HI1175-EV)
•Low Cost
• Direct Replacement for the Sony CXD1175
Applications
• Video Digitizing
• PC Video Capture
• Image Scanners
• TV Set Top Boxes
•Multimedia
• Personal Communication Systems (PCS)
Pinout
HI1175 (SOIC)
TOP VIEW
Ordering Information
PART NUMBER
TEMP.
RANGE (
o
C) PACKAGE
PKG.
NO.
HI1175JCB -40 to 85 24 Ld SOIC M24.2-S
HI1175-EV 25 Evaluation Board
DV
SS
D0 (LSB)
D1
D2
D3
D4
D6
D5
DV
DD
CLK
V
RB
AV
SS
V
IN
AV
DD
V
RBS
V
RT
V
RTS
AV
DD
AV
DD
DV
DD
OE
DV
SS
1
2
3
4
5
6
7
8
9
10
11
12
16
17
18
19
20
21
22
23
24
15
14
13
D7 (MSB)
AV
SS
Data Sheet October 25, 2005
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