ADC121S101   
Single Channel, 0.5 to 1 Msps, 12-Bit A/D Converter from the PowerWise® Family		 Click link to Download

Features
•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

Description

The ADC121S101 is a low-power, single 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 ADC121S101 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 ADC121S101 operates with a single supply that can range from +2.7V to +5.25V. Normal power consumption using 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 2.6 µW using a +5V supply.

The ADC121S101 is packaged in 6-lead LLP and SOT-23 packages. Operation over the industrial temperature range of −40°C to +125 °C is guaranteed.

Key Specification

DNL

+0.5 / −0.3 LSB (typ)

INL

±0.40 LSB (typ)

SNR

72.5 dB (typ)

Power Consumption

3V Supply

2.0 mW (typ)

5V Supply

10 mW (typ)

Applications
•Portable Systems
•Remote Data Acquisition
•Instrumentation and Control Systems
ADC121S101 Webench® Custom
Design/Analyze/Build It
ADC Parameters
ADC and Op Amp Supply voltage:
5 V 3.3 V
help
Sample Rate
Sample Rate per channel ksps help
Operating Conditions
Min. Ambient Temperature degC help
Nominal Ambient Temperature degC help
Max. Ambient Temperature degC help

Also Recommended
ADC081S101▲For 8 Bits
ADC101S101▲For 10 Bits
ADC121S021▲For Speeds From 50Ksps To 200Ksps
ADC121S051▲For Speeds From 200Ksps To 500Ksps



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                                              ADC121S101
Drag-Select for Table Reset Graph
Also Recommended
ADC081S101▲For 8 Bits
ADC101S101▲For 10 Bits
ADC121S021▲For Speeds From 50Ksps To 200Ksps
ADC121S051▲For Speeds From 200Ksps To 500Ksps

Typical Application
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Block Diagram
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Typical Performance
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Paramaters / ValuesADC121S101 ADC081S101 ADC101S101 ADC121S021 ADC121S051
Pin and Function Compatible Family1 ch, SOT-6, 1 ch, LLP-6 1 ch, SOT-6, 1 ch, LLP-6 1 ch, SOT-6, 1 ch, LLP-6 1 ch, SOT-6, 1 ch, LLP-6 1 ch, SOT-6, 1 ch, LLP-6
Resolution12 bits 8 bits 10 bits 12 bits 12 bits
Input Channels1 1 1 1 1
Sample Rate Range (sps)500k to 1M 500k to 1M 500k to 1M 50k to 200k 200k to 500k
Interface TypeSPI / QSPI / Microwire Parallel SPI / QSPI / Microwire SPI / QSPI / Microwire SPI / QSPI / Microwire
Differential InputNo No No No No
Power Down, typ. at 3.6V2.5 uW 2.5 uW 2.5 uW 2.6 uW 2.5 uW
Operating Power, typ at 3.6V, max ksps0.007 mW 0.007 mW 0.007 mW 0.024 mW 0.012 mW
Operating Power, 3.6V, 1ksps, max. PwrDn2.0 mW 2.0 mW 2.0 mW 1.5 mW 1.7 mW
PowerWise Rating 10.6 pJ/conv 8.37 pJ/conv 2.09 pJ/conv 2.25 pJ/conv 1.1 pJ/conv
INL (LSB)+/-0.4 +/-0.05 +/-0.2 +0.45; -0.4 +0.45; -0.4
DNL (LSB)+0.5; -0.3 +/-0.07 +0.3; -0.2 +0.45; -0.25 +0.5; -0.25
ENOB11.7 bits 7.9 bits 9.9 bits 11.7 bits 11.6 bits
SINAD72 dB 49.7 dB 61.7 dB 72 dB 72 dB
SNR72.5 dB 49.7 dB 62 dB 72.3 dB 72 dB
Max KSample Rate1000 ksps 1000 ksps 1000 ksps 200 ksps 500 ksps
Min Supply Voltage2.7 Volt 2.7 Volt 2.7 Volt 2.7 Volt 2.7 Volt
Max Supply Voltage5.25 Volt 5.25 Volt 5.25 Volt 5.25 Volt 5.25 Volt
Reference SourceSupply Supply Supply Supply Supply
Temperature Min-40 deg C -40 deg C -40 deg C -40 deg C -40 deg C
Temperature Max125 deg C 85 deg C 85 deg C 85 deg C 85 deg C
Power DownYes Yes Yes Yes Yes
Input Sample/HoldYes Yes Yes Yes Yes
Special FeaturesUndefined Undefined Undefined Undefined Undefined
Data Converter TypeADC ADC ADC ADC ADC
Max Sample Rate1 MSPS 1 MSPS 1 MSPS 0.2 MSPS 0.5 MSPS
AutomotiveYes Yes Yes
PowerWiseYes Yes Yes Yes Yes

Datasheet
TitleSizeDateOther
Language
ADC121S101 Single Channel, 0.5 to 1 Msps, 12-Bit A/D Converter384
Kbytes		21-Oct-09日本語


Featured Application Notes
TitleSizeDateOther
Language
AN-1261: Application Note 1261 Power Supply Effects on Noise Performance78
Kbytes		16-Mar-07 中文


More Application Notes
TitleSizeDateOther
Language
AN-1261: Application Note 1261 Power Supply Effects on Noise Performance78
Kbytes		16-Mar-07 中文

Part Number(s)
(NSID)		Top ViewAvailabilityCurrent Reported StockBudgetary PricingStandard Pack Size
ADC121S101CIMF/NOPB

RoHS



SOT-23		Full production
Lead Time: 6 weeks

Samples
DistributorRegionQty
DIGIKEYWorldwide2524
FARNELLEurope and Asia1927
NEWARKAmericas140
RS COMPONENTSWorldwide778
$1.60 each at 1K+ pcsreel
of
1000
ADC121S101CIMFX/NOPB

RoHS



SOT-23		Full production
Lead Time: 8 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
$1.60 each at 1K+ pcsreel
of
3000
ADC121S101CISD/NOPB

RoHS



LLP		Full production
Lead Time: 6 weeks

 
DistributorRegionQty
DIGIKEYWorldwide1627
FARNELLEurope and Asia50
RS COMPONENTSWorldwide5
$1.60 each at 1K+ pcsreel
of
1000
ADC121S101CISDX/NOPB

RoHS



LLP		Full production
Lead Time: 6 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
$1.60 each at 1K+ pcsreel
of
4500

Part Number(s)
(NSID)		DescriptionAvailabilityCurrent Reported StockBudgetary PricingStandard Pack Size
ADC121S101EVAL
Single Channel, 0.5 to 1 Msps, 12-Bit A/D ConverterFull production
Lead Free (RoHS)

 
DistributorRegionQty
DIGIKEYWorldwide0
NATIONALWorldwide0
$120.00 each1

Description:

The ADC121S101 is a 2 mW, CMOS 12-bit, 1 MSPS Analog-to-Digital converter offered in a 6-lead SOT-23 and is designed to operate over the automotive/extended industrial temperature range of -40°C to +125°C.

This evaluation board is designed to ease the evaluation and design-in of National Semiconductor's ADC121S101 Analog-to-Digital Converter. The board and can be used in either of two modes. In the Manal or Stand alone mode the board can be used with suitable test equipment to evaluate the ADC121S101's performance. In the Computer or Automatic mode, evaluation is simplified by connecting the board to the Wavevision Digital Interface Board (order number WAVEVISION BRD 4.0 or later), which in turn is connected to a personal computer through an USB communication port, and using National Semiconductor's Wavevision software.

Features:

  • Variable power management
  • Packaged in 6-lead, SOT-23
  • Power supply used as reference
  • Single +2.7V to +5.25V supply operation
  • SPI™/QSPI™/MICROWIRE™/DSP compatible

Contents:

  • Fully assembled ADC121S101 Evaluation Board
  • Instruction Manual
  • ADC121S101 Data Sheet

Part Number(s)
(NSID)		Top ViewTypePinsMSL RatingPeak ReflowRoHSCAD SymbolsModelsPackage
Marking
Format
ADC121S101CIMF/NOPB
SOT-2361260RoHSDownloadN/A
X01C
XTT
ADC121S101CIMFX/NOPB
SOT-2361260RoHSDownloadN/A
X01C
XTT
ADC121S101CISD/NOPB
LLP61260RoHSDownloadN/A
XTT
X1C
ADC121S101CISDX/NOPB
LLP61260RoHSDownloadN/A
XTT
X1C

Design Tools
TitleSizeDate
Evaluation Boards & Development Systems  

Reliability Metrics
Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
ADC121S101CIMFCMOS70184060010890004309006723
ADC121S101CIMFXCMOS70184060010890004309006723
ADC121S101CISDCMOS70184060010890004309006723
ADC121S101CISDXCMOS70184060010890004309006723

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.


MotionFire Development Platform on PowerWise Design TV
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MotionFire Development Platform on PowerWise Design TV
Date: 3/25/2009
Length: 0:30:00

[Information as of 20-Nov-2009]