TDF8704 데이터 시트보기 (PDF) - Philips Electronics
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TDF8704 Datasheet PDF : 20 Pages
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Philips Semiconductors
8-bit high-speed analog-to-digital converter
Product specification
TDF8704
FEATURES
• 8-bit resolution
• Sampling rate up to 50 MHz
• Extended temperature range (−40 to +85 °C)
• High signal-to-noise ratio over a large analog input
frequency range (7.4 effective bits at 4.43 MHz full-scale
input and at fclk = 50 MHz)
• Binary 3-state TTL outputs
• Overflow/underflow 3-state TTL output
• TTL compatible digital inputs
• Low-level AC clock input signal allowed
• Stable internal reference voltage regulator included
• Power dissipation only 380 mW (typical)
• Low analog input capacitance, no buffer amplifier
required
• No sample-and-hold circuit required.
APPLICATIONS
• General purpose high-speed analog-to-digital
conversion for extended temperature applications
• Automotive
• RF, satellite and GPS (Global Positioning System)
• Medical
• General industrial
• Digital video (VCR, TV and satellite).
GENERAL DESCRIPTION
The TDF8704T is an 8-bit high-speed analog-to-digital
converter (ADC) for general industrial applications. It
converts the analog input signal into 8-bit binary-coded
digital words at a maximum sampling rate of 50 MHz. All
digital inputs and outputs are TTL compatible, although a
low-level AC clock input signal is allowed.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
VCCA
VCCD
VCCO
ICCA
ICCD
ICCO
ILE
DLE
AILE
fclk(max)
Ptot
analog supply voltage
digital supply voltage
output stages supply voltage
analog supply current
digital supply current
output stages supply current
DC integral linear error
DC differential linearity error
AC integral linearity error
maximum clock frequency
total power dissipation
note 1
Note
1. Full-scale sine wave (fi = 4.43 MHz; fclk = 50 MHz).
MIN.
4.75
4.75
4.75
−
−
−
−
−
−
50
−
TYP.
5.0
5.0
5.0
37
23
16
±0.4
±0.2
−
−
380
MAX.
5.25
5.25
5.25
46
35
21
±1
±0.5
±2
−
535
UNIT
V
V
V
mA
mA
mA
LSB
LSB
LSB
MHz
mW
ORDERING INFORMATION
TYPE NUMBER
TDF8704T/2
TDF8704T/4
TDF8704T/5
PINS
24
24
24
PACKAGE
PIN POSITION
MATERIAL
SO24L
SO24L
SO24L
plastic
plastic
plastic
CODE
SOT137-1
SOT137-1
SOT137-1
SAMPLING
FREQUENCY
20 MHz
40 MHz
50 MHz
June 1994
2
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