Datasheet
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 | Weeks | Qty | Qty | $US each |
| ADC121C02XEB | I2C-Compatible, 12-Bit Analog-to-Digital Converter (ADC) with Alert Function Evaluation Board | Full production | N/A
|
| 1+ | $120.00 | 1 | - |
| 8 weeks | N/A |
| ADC121C021CIMK | TSOT | 6 | NOPB
STD | 1
1 | 260
260 | RoHS |
N/A |
Full production | N/A
| 
| 1K+ | $1.16 | reel
of
1000 | X30C
XTT |
| 14 weeks | 1000 |
| ADC121C021CIMKX | TSOT | 6 | NOPB | 1 | 260 | RoHS |
N/A |
Full production | N/A
|
| 1K+ | $1.16 | reel
of
3000 | X30C
XTT |
| 14 weeks | N/A |
| ADC121C021CIMM | MINI SOIC | 8 | NOPB | 1 | 260 | RoHS |
N/A |
Full production | N/A
|
| 1K+ | $1.16 | reel
of
1000 | ZXTT
X37C |
| 14 weeks | 2000 |
| ADC121C021CIMMX | MINI SOIC | 8 | NOPB | 1 | 260 | RoHS |
N/A |
Full production | N/A
|
| 1K+ | $1.16 | reel
of
3500 | ZXTT
X37C |
| 14 weeks | N/A |
General Description
These converters are low-power, monolithic, 12-bit, analog-to-digital converters (ADCs) that operates from a +2.7 to 5.5V
supply. The converter is based upon a successive approximation register architecture with an internal track-and-hold circuit
that can handle input frequencies up to 11MHz. These converters operate 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 ADC121C021'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 ADC121C021 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
ADC121C027 comes in a small TSOT-6 package with an address selection input. The
ADC121C027 provides three pin-selectable addresses while the MSOP-8 version of the ADC121C021 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
ADC121C021 and
ADC121C027 are part of a family of pin-compatible ADCs that also provide 8 and 10 bit resolution. For 8-bit ADCs see the
ADC081C021 and
ADC081C027. For 10-bit ADCs see the
ADC101C021 and
ADC101C027.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
|
ADC121C021CIMK | CMOS7 | 0 | 18406 | 0 | 0 | 1089000 | 4 | 309006723
|
|
ADC121C021CIMKX | CMOS7 | 0 | 18406 | 0 | 0 | 1089000 | 4 | 309006723
|
|
ADC121C021CIMM | CMOS7 | 0 | 18406 | 0 | 0 | 1089000 | 4 | 309006723
|
|
ADC121C021CIMMX | 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.
[Information as of 8-Nov-2009]
| 
RoHS Compliance Information