TDA8714 Datasheet, PDF (2/24 Pages) NXP Semiconductors – 8-bit high-speed analog-to-digital converter

Philips Semiconductors
8-bit high-speed analog-to-digital converter
Product specification
TDA8714
FEATURES
• 8-bit resolution
• Sampling rate up to 80 MHz
• No missing codes guaranteed
• High signal-to-noise ratio over a large analog input
frequency range (7.7 effective bits at 4.43 MHz
full-scale input at f_clk = 80 MHz)
• Overflow/underflow 3-state TTL output
• TTL compatible digital inputs
• Low-level AC clock input signal allowed
• External reference voltage regulator
• Power dissipation only 340 mW (typical)
• Low analog input capacitance, no buffer amplifier
required
• No sample-and-hold circuit required.
APPLICATIONS
High-speed analog-to-digital conversion for:
• video data digitizing
• radar pulse analysis
• transient signal analysis
• high energy physics research
• Σ∆ modulators
• medical imaging.
GENERAL DESCRIPTION
The TDA8714 is an 8-bit high-speed Analog-to-Digital
Converter (ADC) for professional video and other
applications. It converts the analog input signal into 8-bit
binary-coded digital words at a maximum sampling rate of
80 MHz. All digital inputs and outputs are TTL compatible,
although a low-level sine wave clock input signal is
allowed.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS MIN.
V_CCA
analog supply voltage
4.75
V_CCD
digital supply voltage
4.75
V_CCO
output stages supply voltage
4.75
I_CCA
analog supply current
−
I_CCD
digital supply current
−
I_CCO
output stages supply current
−
INL
DC integral non-linearity
−
DNL
DC differential non-linearity
−
AINL
AC integral non-linearity
note 1
−
f_clk(max)
maximum clock frequency
TDA8714/7
80
TDA8714/6
60
TDA8714/4
40
P_tot
total power dissipation
−
Note
1. Full-scale sine wave (f_i = 4.43 MHz; f_clk = 80 MHz).
TYP.
5.0
5.0
5.0
25
27
16
±0.4
±0.2
±0.5
−
−
−
340
MAX.
5.25
5.25
5.25
30
33
20
±0.5
±0.35
±1.0
−
−
−
435
UNIT
V
V
V
mA
mA
mA
LSB
LSB
LSB
MHz
MHz
MHz
mW
1997 Oct 29
2