ADC124S101EVAL National Semiconductor, ADC124S101EVAL Datasheet

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ADC124S101EVAL

Manufacturer Part Number
ADC124S101EVAL
Description
BOARD EVALUATION FOR ADC124S101
Manufacturer
National Semiconductor
Series
PowerWise®r
Datasheet

Specifications of ADC124S101EVAL

Number Of Adc's
1
Number Of Bits
12
Sampling Rate (per Second)
1M
Data Interface
Serial
Inputs Per Adc
4 Single Ended
Input Range
0 ~ 5.25 V
Power (typ) @ Conditions
13.1mW @ 1MSPS
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 85°C
Utilized Ic / Part
ADC124S101
Lead Free Status / RoHS Status
Not applicable / Not applicable
© 2010 National Semiconductor Corporation
4 Channel, 500 ksps to 1 Msps, 12-Bit A/D Converter
General Description
The ADC124S101 is a low-power, four-channel CMOS 12-bit
analog-to-digital converter with a high-speed serial interface.
Unlike the conventional practice of specifying performance at
a single sample rate only, the ADC124S101 is fully specified
over a sample rate range of 500 ksps to 1 Msps. The con-
verter is based on a successive-approximation register archi-
tecture with an internal track-and-hold circuit. It can be
configured to accept up to four input signals at inputs IN1
through IN4.
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 ADC124S101 operates with a single supply that can
range from +2.7V to +5.25V. Normal power consumption us-
ing a +3V or +5V supply is 4.3 mW and 13.1 mW, respectively.
The power-down feature reduces the power consumption to
just 0.14 µW using a +3V supply, or 0.32 µW using a +5V
supply.
The ADC124S101 is packaged in a 10-lead MSOP package.
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
TRI-STATE® is a trademark of National Semiconductor Corporation
QSPI™ and SPI™ are trademarks of Motorola, Inc.
Resolution
12-bit
10-bit
8-bit
50 to 200 ksps
ADC124S021
ADC104S021
ADC084S021
201249
ADC124S101
Specified for Sample Rate Range of:
200 to 500 ksps
Features
Key Specifications
Applications
ADC124S051
ADC104S051
ADC084S051
Specified over a range of sample rates.
Four input channels
Variable power management
Single power supply with 2.7V - 5.25V range
DNL
INL
SNR
Power Consumption
— 3V Supply
— 5V Supply
Portable Systems
Remote Data Acquisition
Instrumentation and Control Systems
20124905
500 ksps to 1 Msps
ADC124S101
ADC104S101
ADC084S101
+0.9/−0.6 LSB (typ)
February 19, 2010
± 0.64 LSB (typ)
13.1 mW (typ)
www.national.com
72.4 dB (typ)
4.3 mW (typ)

Related parts for ADC124S101EVAL

ADC124S101EVAL Summary of contents

Page 1

... ADC124S021 10-bit ADC104S021 8-bit ADC084S021 Connection Diagram TRI-STATE® trademark of National Semiconductor Corporation QSPI™ and SPI™ are trademarks of Motorola, Inc. © 2010 National Semiconductor Corporation ADC124S101 Features ■ Specified over a range of sample rates. ■ Four input channels ■ ...

Page 2

... Ordering Information Order Code ADC124S101CIMM ADC124S101CIMMX ADC124S101EVAL Block Diagram Pin Descriptions and Equivalent Circuits Pin No. Symbol ANALOG I/O IN1 to IN4 4-7 DIGITAL I/O 10 SCLK 9 DOUT 8 DIN 1 CS POWER SUPPLY GND www.national.com Temperature Range −40°C to +85°C 10-Lead MSOP Package −40°C to +85°C 10-Lead MSOP Package, Tape & ...

Page 3

... Absolute Maximum Ratings 2) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage V A Voltage on Any Pin to GND Input Current at Any Pin (Note 3) Package Input Current(Note 3) Power Consumption 25°C A ESD Susceptibility ...

Page 4

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 ...

Page 5

ADC124S101 Timing Specifications The following specifications apply for pF, Boldface limits apply for T L Symbol Parameter t Setup Time SCLK High to CS Falling Edge CSU t Hold time SCLK Low to CS Falling Edge ...

Page 6

Timing Diagrams www.national.com ADC124S101 Timing Diagram 20124908 Timing Test Circuit ADC124S101 Serial Timing Diagram 20124950 SCLK and CS Timing Parameters 6 20124951 20124906 ...

Page 7

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 ...

Page 8

Typical Performance Characteristics MHz 40.3 kHz unless otherwise stated. IN DNL - V = 3.0V A DNL - V = 5.0V A DNL vs. Supply www.national.com T = +25° 500 ksps to 1 Msps ...

Page 9

DNL vs. Clock Frequency 20124924 DNL vs. Clock Duty Cycle 20124926 DNL vs. Temperature 20124928 INL vs. Clock Frequency INL vs. Clock Duty Cycle INL vs. Temperature 9 20124925 20124927 20124929 www.national.com ...

Page 10

SNR vs. Supply SNR vs. Clock Frequency SNR vs. Clock Duty Cycle www.national.com THD vs. Supply 20124930 THD vs. Clock Frequency 20124931 THD vs. Clock Duty Cycle 20124932 10 20124935 20124936 20124937 ...

Page 11

SNR vs. Input Frequency 20124933 SNR vs. Temperature 20124934 SFDR vs. Supply 20124940 THD vs. Input Frequency THD vs. Temperature SINAD vs. Supply 11 20124938 20124939 20124945 www.national.com ...

Page 12

SFDR vs. Clock Frequency SFDR vs. Clock Duty Cycle SFDR vs. Input Frequency www.national.com SINAD vs. Clock Frequency 20124941 SINAD vs. Clock Duty Cycle 20124942 SINAD vs. Input Frequency 20124943 12 20124946 20124947 20124948 ...

Page 13

SFDR vs. Temperature 20124944 ENOB vs. Supply 20124952 ENOB vs. Clock Duty Cycle 20124954 SINAD vs. Temperature ENOB vs. Clock Frequency ENOB vs. Input Frequency 13 20124949 20124953 20124955 www.national.com ...

Page 14

ENOB vs. Temperature Spectral Response - 5V, 500 ksps Spectral Response - 5V, 1.0 Msps www.national.com Spectral Response - 3V, 500 ksps 20124956 Spectral Response - 3V, 1.0 Msps 20124960 Power Consumption vs. Throughput 20124965 14 20124959 20124964 20124961 ...

Page 15

Applications Information 1.0 ADC124S101 OPERATION The ADC124S101 is a successive-approximation analog-to- digital converter designed around a charge-redistribution dig- ital-to-analog converter. Simplified schematics of the AD- C124S101 in both track and hold modes are shown in Figures 1, 2, respectively. In ...

Page 16

During each conversion, data is clocked into the DIN pin on the first 8 rising edges of SCLK after the fall of CS. For each conversion necessary to clock in the data indicating the input that is selected ...

Page 17

TYPICAL APPLICATION CIRCUIT A typical application of the ADC124S101 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 ...

Page 18

Typical Performance Curves sec- tion. To calculate the power consumption for a given through- put, multiply the fraction of time spent in the normal mode by the normal mode power consumption and add the fraction ...

Page 19

Physical Dimensions inches (millimeters) unless otherwise noted Order Number ADC124S101CIMM, ADC124S101CIMMX 10-Lead MSOP NS Package Number P0MUB10A 19 www.national.com ...

Page 20

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

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