ADC101S101EVAL National Semiconductor, ADC101S101EVAL Datasheet

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ADC101S101EVAL

Manufacturer Part Number
ADC101S101EVAL
Description
BOARD EVALUATION FOR ADC101S101
Manufacturer
National Semiconductor
Series
PowerWise®r
Datasheet

Specifications of ADC101S101EVAL

Number Of Adc's
1
Number Of Bits
10
Sampling Rate (per Second)
1M
Data Interface
Serial
Inputs Per Adc
1 Single Ended
Input Range
0 ~ 5.25 V
Power (typ) @ Conditions
10mW @ 1MSPS
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 85°C
Utilized Ic / Part
ADC101S101
Lead Free Status / RoHS Status
Not applicable / Not applicable
© 2010 National Semiconductor Corporation
Single Channel, 0.5 to 1 Msps, 10-Bit A/D Converter
General Description
The ADC101S101 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 ADC101S101 is fully
specified over a sample rate range of 500 ksps to 1 Msps. 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 ADC101S101 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 2.0 mW and 10 mW, respectively.
The power-down feature reduces the power consumption to
as low as 2.5 µW using a +5V supply.
The ADC101S101 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
ADC101S101CISD
ADC101S101CISDX
ADC101S101CIMF
ADC101S101CIMFX
ADC101S101EVAL
®
is a registered trademark of National Semiconductor Corporation.
Resolution
Order Code
12-bit
10-bit
8-bit
50 to 200 ksps
ADC121S021
ADC101S021
ADC081S021
Temperature Range
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
201452
ADC101S101
Specified for Sample Rate Range of:
200 to 500 ksps
Features
Key Specifications
Applications
ADC121S051
ADC101S051
ADC081S051
6-Lead SOT-23 Package, Tape & 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
— 3V Supply
— 5V Supply
Portable Systems
Remote Data Aquisitions
Instrumentation and Control Systems
6-Lead LLP Package, Tape & Reel
SOT-23 Evaluation Board
6-Lead SOT-23 Package
6-Lead LLP Package
20145205
Description
500 ksps to 1 Msps
ADC121S101
ADC101S101
ADC081S101
+0.3 / −0.2 LSB (typ)
January 13, 2010
± 0.2 LSB (typ)
www.national.com
Top Mark
2.0 mW (typ)
10 mW (typ)
X02C
X02C
62 dB (typ)
X2C
X2C

Related parts for ADC101S101EVAL

ADC101S101EVAL Summary of contents

Page 1

... ADC101S021 8-bit ADC081S021 Connection Diagram Ordering Information Order Code ADC101S101CISD ADC101S101CISDX ADC101S101CIMF ADC101S101CIMFX ADC101S101EVAL TRI-STATE ® registered trademark of National Semiconductor Corporation. © 2010 National Semiconductor Corporation ADC101S101 Features ■ Specified over a range of sample rates. ■ 6-lead LLP and SOT-23 packages ■ ...

Page 2

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 ...

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. Analog 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 ...

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

Symbol Parameter Minimum Time Required for t ACQ Acquisition t (Note 11) QUIET t Aperture Delay AD t Aperture Jitter AJ ADC101S101 Timing Specifications The following specifications apply for 500 ksps to 1 Msps, Boldface limits apply ...

Page 6

Timing Diagrams www.national.com FIGURE 1. Timing Test Circuit FIGURE 2. ADC101S101 Serial Timing Diagram 6 20145208 20145206 ...

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. Acquisition time is measured backwards from the falling edge of ...

Page 8

Typical Performance Characteristics MHz to 20 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 ...

Page 9

SNR vs Clock Frequency 20145263 SFDR vs. Clock Frequency 20145267 Spectral Response 5.25V MHz SCLK 20145269 SINAD vs. Clock Frequency THD vs. Clock Frequency Spectral Response MHz SCLK 9 20145264 ...

Page 10

Power Consumption vs. Throughput MHz SCLK www.national.com 20145255 10 ...

Page 11

Applications Information 1.0 ADC101S101 OPERATION The ADC101S101 is a successive-approximation analog-to- digital converter designed around a charge-redistribution dig- ital-to-analog converter core. Simplified schematics of the ADC101S101 in both track and hold operation are shown in Figures 3 and 4, respectively. ...

Page 12

... Figure 2 yields a 20μs time between CS falling 4.0 TYPICAL APPLICATION CIRCUIT A typical application of the ADC is shown in is provided in this example by the National Semiconductor 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 ADC ...

Page 13

ANALOG INPUTS An equivalent circuit for one of the ADC's input channels is shown in Figure 7. Diodes D1 and D2 provide ESD protection for the analog inputs time should any input go beyond (V + 300 ...

Page 14

To exit shutdown mode, bring CS back low. Upon bringing CS low, the ADC will begin powering up (power-up time is specified in the Timing Specifications table). This power-up delay results in the first conversion result being unusable. The second ...

Page 15

Physical Dimensions inches (millimeters) unless otherwise noted Order Number ADC101S101CISD or ADC101S101CISDX Order Number ADC101S101CIMF, ADC101S101CIMFX 6-Lead LLP NS Package Number SDB06A 6-Lead SOT-23 NS Package Number MF06A 15 www.national.com ...

Page 16

... 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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