Features • I 2C-Compatible 2-wire Interface which supports standard (100kHz), fast (400kHz), and high speed (3.4MHz) modes • Extended power supply range (+2.7V to +5.5V) • Up to nine pin-selectable chip addresses (MSOP-8 only) • Out-of-range Alert Function • Automatic Power-down mode while not converting • Very small TSOT-6 and MSOP-8 packages • ±8kV HBM ESD protection (SDA, SCL) Description The ADC101C021 is a low-power, monolithic, 10-bit, analog-to-digital converter (ADC) that operates from a +2.7 to 5.5V supply. The converter is based on a successive approximation register architecture with an internal track-and-hold circuit that can handle input frequencies up to 11MHz. The ADC101C021 operates from a single supply which also serves as the reference. The device features an I 2C-compatible serial interface that operates in all three speed modes, including high speed mode (3.4MHz). The ADC's Alert feature provides an interrupt that is activated when the analog input violates a programmable upper or lower limit value. The device features an automatic conversion mode, which frees up the controller and I 2C interface. In this mode, the ADC continuously monitors the analog input for an "out-of-range" condition and provides an interrupt if the measured voltage goes out-of-range. The ADC101C021 comes in two packages: a small TSOT-6 package with an alert output, and an MSOP-8 package with an alert output and two address selection inputs. The ADC101C027 comes in a small TSOT-6 package with an address selection input. The ADC101C027 provides three pin-selectable addresses while the MSOP-8 version of the ADC101C021 provides nine pin-selectable addresses. Pin-compatible alternatives to the TSOT-6 options are available with additional address options. Normal power consumption using a +3V or +5V supply is 0.26mW or 0.78mW, respectively. The automatic power-down feature reduces the power consumption to less than 1µW while not converting. Operation over the industrial temperature range of −40°C to +105°C is guaranteed. Their low power consumption and small packages make this family of ADCs an excellent choice for use in battery operated equipment. The ADC101C021 and ADC101C027 are part of a family of pin-compatible ADCs that also provide 12 and 8 bit resolution. For 12-bit ADCs see the ADC121C021 and ADC121C027. For 8-bit ADCs see the ADC081C021 and ADC081C027. Key Specification Resolution 10 bits; no missing codes Conversion Time 1µs (typ) INL & DNL ±0.5 LSB (max) Throughput Rate 188.9kSPS (max) Power Consumption (at 22kSPS) 3V Supply 0.26 mW (typ) 5V Supply 0.78 mW (typ) Applications • System Monitoring • Peak Detection • Portable Instruments • Medical Instruments • Test Equipment

Typical Application Circuit MY BRIEFCASE                                       Click any "Briefcase" icon to add an item

Typical Application click for larger image Typical Application Circuit	Block Diagram click for larger image Block Diagram
Typical Performance click for larger image INL vs. CODE - Va=3.0V

Datasheets

Title		Size	Date	Other Language
	ADC101C021/ADC101C027 I 2 C-Compatible, 10-Bit Analog-to-Digital Converter (ADC) with Alert Function	797 Kbytes	9-Mar-09

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Standard Pack Size
ADC101C021CIMK/NOPB RoHS Status	TSOT	Full production Lead Time: 6 weeks	Distributor Region Qty DIGIKEY Worldwide 1422 FUTURE Worldwide 1100 NEWARK Americas 377 RS COMPONENTS Worldwide 45	$1.00 each at 500+ pcs	reel of 1000
ADC101C021CIMKX/NOPB RoHS Status	TSOT	Full production Lead Time: 12 weeks	Distributor Region Qty DIGIKEY Worldwide 0	$1.00 each at 500+ pcs	reel of 3000
ADC101C021CIMM/NOPB RoHS Status	MINI SOIC	Full production Lead Time: 6 weeks	Distributor Region Qty AVNET-EM Worldwide 1000 DIGIKEY Worldwide 1977 FUTURE Worldwide 952 NEWARK Americas 960	$1.00 each at 500+ pcs	reel of 1000
ADC101C021CIMMX/NOPB RoHS Status	MINI SOIC	Full production Lead Time: 16 weeks	Distributor Region Qty DIGIKEY Worldwide 0	$1.00 each at 500+ pcs	reel of 3500

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National's certificate of product compliance is located at RoHS Status.

Part Number(s) (NSID)	Top View	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
ADC101C021CIMK/NOPB		TSOT	6	1	260	Detail	Download	N/A	X33C XTT
ADC101C021CIMKX/NOPB		TSOT	6	1	260	Detail	Download	N/A	X33C XTT
ADC101C021CIMM/NOPB		MINI SOIC	8	1	260	Detail	Download	N/A	ZXTT X38C
ADC101C021CIMMX/NOPB		MINI SOIC	8	1	260	Detail	Download	N/A	ZXTT X38C

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/packaging/leadfree.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/quality/green.

National's certificate of product compliance is located at RoHS Status.

CAD Symbols and Models Download ADC101C021 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
ADC101C021CIMK	CMOS7	0	18406	0	0	1089000	4	309006723
ADC101C021CIMKX	CMOS7	0	18406	0	0	1089000	4	309006723
ADC101C021CIMM	CMOS7	0	18406	0	0	1089000	4	309006723
ADC101C021CIMMX	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.

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/packaging/leadfree.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/quality/green.

National's certificate of product compliance is located at RoHS Status.