ADC121S101 - Single Channel, 0.5 to 1 Msps, 12-Bit A/D Converter

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

Datasheet	Packaging	Samples & Pricing	Eval. Boards	Reliability	Design Tools	Knowledge Base

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

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)

General 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. More...

Applications

•	Portable Systems
•	Remote Data Acquisition
•	Instrumentation and Control Systems

Typical Application

click for larger image

Parameters Values

Pin and Function Compatible Family 1 ch, SOT-6, 1 ch, LLP-6

Resolution 12 bits

Input Channels 1

Sample Rate Range (sps) 500k to 1M

Interface Type SPI / QSPI / Microwire

Differential Input No

Power Down, typ. at 3.6V 2.5 uW

Operating Power, typ at 3.6V, max ksps 0.007 mW

Operating Power, 3.6V, 1ksps, max. PwrDn 2.0 mW

PowerWise Rating 1 0.6 pJ/conv

INL (LSB) +/-0.4

DNL (LSB) +0.5; -0.3

ENOB 11.7 bits

SINAD 72 dB

SNR 72.5 dB

Max KSample Rate 1000 ksps

Min Supply Voltage 2.7 Volt

Max Supply Voltage 5.25 Volt

Reference Source Supply

Temperature Min -40 deg C

Temperature Max 125 deg C

Power Down Yes

Input Sample/Hold Yes

Special Features Undefined

Data Converter Type ADC

Max Sample Rate 1 MSPS

Automotive Yes

PowerWise Yes

Typical Performance

click for larger image

WEBENCH Live Simulation!

ADC121S101 Webench® Custom
Design/Analyze/Build It

ADC Parameters

ADC and Op Amp Supply voltage:

5 V

3.3 V

Sample Rate

Sample Rate per channel

ksps

Operating Conditions

Min. Ambient Temperature

degC

Nominal Ambient Temperature

degC

Max. Ambient Temperature

degC

Also Recommended

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

Additional Resources

Online Seminars

Block Diagram

click for larger image

Datasheet

RoHS Compliance Information	Size in Kbytes	Date
ADC121S101 Single Channel, 0.5 to 1 Msps, 12-Bit A/D Converter	384 Kbytes	21-Oct-09	Download
ADC121S101 Single Channel, 0.5 to 1 Msps, 12-Bit A/D Converter (Japanese)	1019 Kbytes

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Package Availability, Models, Samples & Pricing

Part Number

Package

Factory Lead Time

Models

Samples &
Electronic
Orders

Budgetary Pricing

Std
Pack
Size

Package
Marking
Format

Type

Pins

Spec.

MSL
Rating

Peak
Reflow

RoHS
Report

CAD
Symbols

Qty

Qty

$US each

ADC121S101CIMF

6

NOPB

1

260

Full production

N/A

Samples

Buy Now

1K+

$1.60

reel
of
1000

6 weeks

2000

ADC121S101CIMFX

6

NOPB

1

260

Full production

N/A

Buy Now

1K+

$1.60

reel
of
3000

8 weeks

5000

ADC121S101EVAL

Single Channel, 0.5 to 1 Msps, 12-Bit A/D Converter

Full production

N/A

Buy Now

1+

$120.00

1

8 weeks

N/A

ADC121S101CISD

6

NOPB

1

260

Full production

N/A

Buy Now

1K+

$1.60

reel
of
1000

6 weeks

2000

ADC121S101CISDX

6

NOPB

1

260

Full production

N/A

Buy Now

1K+

$1.60

reel
of
4500

6 weeks

N/A

General 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.

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
ADC121S101CIMF	CMOS7	0	18406	0	0	1089000	4	309006723
ADC121S101CIMFX	CMOS7	0	18406	0	0	1089000	4	309006723
ADC121S101CISD	CMOS7	0	18406	0	0	1089000	4	309006723
ADC121S101CISDX	CMOS7	0	18406	0	0	1089000	4	309006723

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.

Design Tools

Title	Size in Kbytes	Date
Evaluation Boards & Development Systems			View

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[Information as of 8-Nov-2009]