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ADC081000LEVAL-2004 View Datasheet(PDF) - National ->Texas Instruments

Part NameDescriptionManufacturer
ADC081000LEVAL(2004) High Performance, Low Power 8-Bit, 1 GSPS A/D Converter National-Semiconductor
National ->Texas Instruments National-Semiconductor
ADC081000LEVAL Datasheet PDF : 29 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
Pin Descriptions and Equivalent Circuits
Pin Functions
Pin No.
Symbol
3
OutV
4
OutEdge
14
DC_Coup
26
PD
30
CAL
35
FSR
127
CalDly
Equivalent Circuit
Description
Output Voltage Amplitude set. Tie this pin high for
normal differential output amplitude. Ground this pin for
a reduced differential output amplitude and reduced
power consumption. See Section 1.5.
Output Edge Select. Sets the edge of the DCLK+ (pin
82) at which the output data transitions. The output
transitions with the DCLK+ rising edge when this pin is
high or on the falling edge when this pin is low. See
Section 5.3.
DC Coupling select. When this pin is high, the VIN+ and
VIN- analog inputs are d.c. coupled and the input
common mode voltage should equal the VCMO (pin 7)
output voltage. When this pin is low, the analog input
pins are internally biased and the input signal should be
a.c. coupled to the analog input pins. See Section 3.0.
Power Down Pin. A logic high on this pin puts the ADC
into the Power Down mode. A logic low on this pin
allows normal operation.
Calibration. A minimum 10 clock cycles low followed by
a minimum of 10 clock cycles high on this pin will
initiate the self calibration sequence. See Section 1.1.
Full scale Range Select. With a logic low on this pin,
the full-scale differential input is 600 mVP-P. With a logic
high on this pin, the full-scale differential input is 800
mVP-P. See Section 1.3.
Calibration Delay. This sets the number of clock cycles
after power up before calibration begins. See Section
1.1.
18
CLK+
19
CLK-
Clock input pins for the ADC. The differential clock
signal must be a.c. coupled to these pins. The input
signal is sampled on the falling edge of CLK+.
11
VIN+
10
VIN-
Analog Signal Differential Inputs to the ADC.
3
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