ADC102S101EVAL National Semiconductor, ADC102S101EVAL Datasheet - Page 17

• Manufacturer Part Number: ADC102S101EVAL
• Description: BOARD EVALUATION FOR ADC102S101
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of ADC102S101EVAL

• Number Of Adc's: 1
• Number Of Bits: 10
• Sampling Rate (per Second): 1M
• Data Interface: Serial
• Inputs Per Adc: 2 Single
• Input Range: 0 ~ 5.25 V
• Power (typ) @ Conditions: 11.4mW @ 1MSPS
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: ADC102S101
• Lead Free Status / RoHS Status: Not applicable / Not applicable

3.0 ADC102S101 TRANSFER FUNCTION
The output format of the ADC102S101 is straight binary. Code transitions occur midway between successive integer LSB values.
The LSB width for the ADC102S101 is V
code of 00 0000 0000 to a code of 00 0000 0001 is at 1/2 LSB, or a voltage of V
one LSB.
4.0 TYPICAL APPLICATION CIRCUIT
A typical application of the ADC102S101 is shown in
4. Power is provided, in this example, by the National Semi-
conductor LP2950 low-dropout voltage regulator, available in
a variety of fixed and adjustable output voltages. The power
supply pin is bypassed with a capacitor network located close
to the ADC102S101. Because the reference for the AD-
C102S101 is the supply voltage, any noise on the supply will
A
/1024. The ideal transfer characteristic is shown in
FIGURE 3. Ideal Transfer Characteristic
FIGURE 4. Typical Application Circuit
Figure
17
degrade device noise performance. To keep noise off the
supply, use a dedicated linear regulator for this device, or
provide sufficient decoupling from other circuitry to keep noise
off
ADC102S101's low power requirements, it is also possible to
use a precision reference as a power supply to maximize per-
formance. The four-wire interface is shown connected to a
microprocessor or DSP.
the
ADC102S101
A
/2048. Other code transitions occur at steps of
Figure
20125311
supply
20125313
3. The transition from an output
pin.
Because
www.national.com
of
the