
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
1.4
m 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 . . . . . . . . . . . . . . . . . . . 300
(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 (oC)
PACKAGE
PKG.
NO.
HI1175JCB
-40 to 85
24 Ld SOIC
M24.2-S
HI1175-EV
25
Evaluation Board
DVSS
D0 (LSB)
D1
D2
D3
D4
D6
D5
DVDD
CLK
VRB
AVSS
VIN
AVDD
VRBS
VRT
VRTS
AVDD
DVDD
OE
DVSS
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)
AVSS
Data Sheet
October 25, 2005
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