
—1—
E90167J04-TE
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operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
Absolute Maximum Ratings
(Ta=25 °C)
Supply voltage V
DD
Reference voltage
V
RT
, V
RB
Input voltage
V
IN
(Analog)
Input voltage
V
I
(Digital)
Output voltage V
O
(Digital)
Storage temperature
Tstg
7
V
V
DD
+ 0.5 to V
SS
– 0.5
V
DD
+ 0.5 to V
SS
– 0.5 V
V
V
DD
+ 0.5 to V
SS
– 0.5 V
V
DD
+ 0.5 to V
SS
– 0.5 V
–55 to +150
°C
Recommended Operating Conditions
Supply voltage AV
DD
, AV
SS
DV
DD
, DV
SS
| DV
SS
– AV
SS
| 0 to 100
Reference input voltage
V
RB
V
RT
Analog input
V
IN
Clock pulse width
Tpw
1
, Tpw
0
22.5 ns (min) to 1.1 μs (max)
Operating ambient temperature
Topr
4.75 to 5.25
V
mV
0 to
to 2.7
V
V
1.8Vp-p above
–40 to +85
°C
Description
The CXD1176Q is an 8-bit CMOS A/D 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 20MSPS.
Features
Resolution power: 8-bit ± 1/2LSB (DL)
Maximum sampling frequency: 20MSPS
Low power consumption: 60mW (at 20MSPS typ.)
(Reference current excluded)
Built-in sync type clamp function
Built-in monostable multivibrator for clamp pulse
generation
Built-in sync pulse polarity selection function
Clamp pulse direct input possible
Built-in clamp ON/OFF function
Built-in reference voltage self-bias circuit
Input CMOS compatible
3-state TTL compatible output
Single 5 V power supply
Low input capacity: 11 pF
Reference impedance: 330
(typ.)
Applications
TV and VCR digital systems and a wide range of
applications where high-speed A/D conversion is
required.
Structure
Silicon gate CMOS IC
8-bit 20MSPS Video A/D Converter with Clamp Function
32 pin QFP (Plastic)
CXD1176Q