ADC101S021EVAL National Semiconductor, ADC101S021EVAL Datasheet

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ADC101S021EVAL

Manufacturer Part Number
ADC101S021EVAL
Description
Manufacturer
National Semiconductor
Datasheet

Specifications of ADC101S021EVAL

Lead Free Status / Rohs Status
Not Compliant
© 2008 National Semiconductor Corporation
ADC101S021
Single Channel, 50 to 200 ksps, 10-Bit A/D Converter
General Description
The ADC101S021 is a low-power, single channel CMOS 10-
bit analog-to-digital converter with a high-speed serial inter-
face. Unlike the conventional practice of specifying perfor-
mance at a single sample rate only, the ADC101S021 is fully
specified over a sample rate range of 50 ksps to 200 ksps.
The converter is based upon a successive-approximation
register architecture with an internal track-and-hold circuit.
The output serial data is straight binary, and is compatible with
several standards, such as SPI™, QSPI™, MICROWIRE,
and many common DSP serial interfaces.
The ADC101S021 operates with a single supply that can
range from +2.7V to +5.25V. Normal power consumption us-
ing a +3.6V or +5.25V supply is 2.34 mW and 8.9 mW,
respectively. The power-down feature reduces the power
consumption to as low as 2.6 µW using a +5.25V supply.
The ADC101S021 is packaged in 6-lead LLP and SOT-23
packages. Operation over the industrial temperature range of
−40°C to +85°C is guaranteed.
Pin-Compatible Alternatives by Resolution and Speed
All devices are fully pin and function compatible.
Connection Diagram
Ordering Information
TRI-STATE
ADC101S021CISD
ADC101S021CISDX
ADC101S021CIMF
ADC101S021CIMFX
ADC101S021EVAL
®
is a registered trademark of National Semiconductor Corporation.
Resolution
Order Code
12-bit
10-bit
8-bit
50 to 200 ksps
ADC101S021
ADC121S021
ADC081S021
Temperature Range
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
201453
Specified for Sample Rate Range of:
200 to 500 ksps
Features
Key Specifications
Applications
ADC121S051
ADC101S051
ADC081S051
6-Lead SOT-23 Package, Tape & Reel
6-Lead LLP Package, Tape and Reel
Specified over a range of sample rates.
6-lead LLP and SOT-23 packages
Variable power management
Single power supply with 2.7V - 5.25V range
SPI™/QSPI™/MICROWIRE/DSP compatible
DNL
INL
SNR
Power Consumption
— 3.6V Supply
— 5.25V Supply
Portable Systems
Remote Data Acquisition
Instrumentation and Control Systems
SOT-23 Evaluation Board
6-Lead SOT-23 Package
6-Lead LLP Package
Description
20145305
500 ksps to 1 Msps
ADC121S101
ADC101S101
ADC081S101
+0.16 / -0.09 LSB (typ)
+0.14 / -0.13 LSB (typ)
2.34 mW (typ)
www.national.com
Top Mark
July 31, 2008
61.6 dB (typ)
8.9 mW (typ)
X08C
X08C
X8C
X8C

ADC101S021EVAL Summary of contents

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... ADC101S021 8-bit ADC081S021 Connection Diagram Ordering Information Order Code ADC101S021CISD ADC101S021CISDX ADC101S021CIMF ADC101S021CIMFX ADC101S021EVAL TRI-STATE ® registered trademark of National Semiconductor Corporation. © 2008 National Semiconductor Corporation Features ■ Specified over a range of sample rates. ■ 6-lead LLP and SOT-23 packages ■ ...

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Block Diagram Pin Descriptions and Equivalent Circuits Pin No. Symbol ANALOG I/O V Analog input. This signal can range from DIGITAL I/O 4 SCLK Digital clock input. This clock directly controls the conversion and readout ...

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... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Analog Supply Voltage V A Voltage on Any Analog Pin to GND Voltage on Any Digital Pin to GND Input Current at Any Pin (Note 3) Package Input Current (Note 3) Power Consumption 25° ...

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Symbol Parameter ANALOG INPUT CHARACTERISTICS V Input Range Leakage Current DCL C Input Capacitance INA DIGITAL INPUT CHARACTERISTICS V Input High Voltage IH V Input Low Voltage IL I Input Current IN C Digital Input Capacitance IND ...

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Symbol Parameter t Aperture Delay AD t Aperture Jitter AJ ADC101S021 Timing Specifications The following specifications apply for ksps to 200 ksps, Boldface limits apply for T SAMPLE Symbol Parameter t Minimum CS Pulse Width CS ...

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Timing Diagrams www.national.com FIGURE 1. Timing Test Circuit FIGURE 2. ADC101S021 Serial Timing Diagram 6 20145308 20145306 ...

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Specification Definitions ACQUISITION TIME is the time required to acquire the input voltage. That is time required for the hold capacitor to charge up to the input voltage. APERTURE DELAY is the time between the fourth falling SCLK ...

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Typical Performance Characteristics MHz to 4 MHz 100 kHz unless otherwise stated. SCLK IN DNL MHz SCLK DNL MHz SCLK DNL vs. Clock Frequency www.national.com T = +25°C, f ...

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SNR vs. Clock Frequency 20145363 SFDR vs. Clock Frequency 20145367 Spectral Response 5.25V MHz SCLK 20145369 SINAD vs. Clock Frequency THD vs. Clock Frequency Power Consumption vs. Throughput MHz SCLK 9 ...

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Applications Information 1.0 ADC101S021 OPERATION The ADC101S021 is a successive-approximation analog-to- digital converter designed around a charge-redistribution dig- ital-to-analog converter core. Simplified schematics of the ADC101S021 in both track and hold modes are shown in Figure 3 and Figure 4, ...

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ADC101S021 TRANSFER FUNCTION The output format of the ADC101S021 is straight binary. Code transitions occur midway between successive integer LSB values. The LSB width for the ADC101S021 is V The ideal transfer characteristic is shown in Figure 5. The ...

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CS is again brought low. After sixteen SCLK cycles, SDATA returns to TRI-STATE. Another conversion may be started, after t by bringing CS low again. 7.2 Shutdown Mode Shutdown mode ...

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Load dis- charge currents will cause "ground bounce" noise in the sub- strate that will degrade noise performance if that current is large enough. The larger the output capacitance, the more current ...

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Physical Dimensions Order Number ADC101S021CISD or ADC101S021CISDX www.national.com inches (millimeters) unless otherwise noted 6-Lead LLP NS Package Number SDB06A 6-Lead SOT-23 Order Number ADC101S021CIMF, ADC101S021CIMFX NS Package Number MF06A 14 ...

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Notes 15 www.national.com ...

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... For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock Conditioners www.national.com/timing Data Converters www.national.com/adc Displays www.national.com/displays Ethernet www.national.com/ethernet Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www ...