Philips TDA8767, Datasheet, Page: 2 / 20

1999 Feb 16 2
Philips Semiconductors Preliminary specification
12-bit high-speed Analog-to-Digital
Converter (ADC)
TDA8767
FEATURES
•
12-bit resolution
•
Sampling rate up to 30 MHz
• −
3 dB bandwidth of 18 MHz
•
No missing codes guaranteed
•
5 V power supplies
•
Binary or two’s complement CMOS outputs
•
In-range CMOS output
•
TTL/CMOS compatible static digital inputs
•
3 to 5 V CMOS digital outputs
•
TTL compatible clock input
•
Power dissipation 335 mW (typ.)
•
Low analog input capacitance (typ. 2 pF), no buffer
amplifier required
•
No external sample-and-hold circuit required
•
Differential or single analog Input
•
External amplitude range control
•
Voltage controlled regulator included.
APPLICATIONS
•
High-speed analog-to-digital conversion for:
– Video signal digitizing
– High Definition TV (HDTV)
– Imaging (camera, scanner)
– Medical imaging
– Telecommunication
– Base-station receiver.
GENERAL DESCRIPTION
The TDA8767 is a bipolar 12-bit Analog-to-Digital
Converter (ADC) for imaging or other applications.
It converts the analog input signal into 12-bit binary coded
digital words at a maximum sampling rate of 30 MHz.
All digital inputs and outputs are CMOS compatible.
QUICK REFERENCE DATA
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
V
CCA
analog supply voltage 4.75 5.0 5.25 V
V
CCD
digital supply voltage 4.75 5.0 5.25 V
V
CCO
output supply voltage 3.0 3.3 5.25 V
I
CCA
analog supply current
−
40 tbf mA
I
CCD
digital supply current
−
22 tbf mA
I
CCO
output supply current f
clk
= 4 MHz; f
i
= 400 kHz
−
3.2 tbf mA
ILE integral non-linearity f
clk
= 4 MHz; f
i
= 400 kHz
− ±
3.0
±
4.0 LSB
DLE differential non-linearity f
clk
= 4 MHz; f
i
= 400 kHz;
no missing codes
− ±
0.6
±
1 LSB
f
clk(max)
maximum clock frequency
TDA8767H/1 10
− −
MHz
TDA8767H/2 20
− −
MHz
TDA8767H/3 30
− −
MHz
P
tot
total power dissipation
−
335
−
mW