ADC121S101 Datasheet, PDF (1/29 Pages) National Semiconductor (TI) – 1MSPS, 12-/10-/8-Bit A/D Converters in SOT-23

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ADC121S101, ADC121S101-Q1
SNAS304H – JANUARY 2006 – REVISED APRIL 2016
ADC121S101x Single-Channel, 0.5 to 1-Msps, 12-Bit Analog-to-Digital Converter
1 Features
•1 Specified Over a Range of Sample Rates
• 6-Pin WSON and SOT-23 Packages
• Variable Power Management
• Single Power Supply With 2.7 V to 5.25 V Range
• SPI™, QSPI™, MICROWIRE, and DSP
Compatible
• AEC-Q100 Grade 1 Qualified
• DNL: +0.5 / −0.3 LSB (Typical)
• INL: ±0.40 LSB (Typical)
• Power Consumption:
– 3-V Supply: 2 mW (Typical)
– 5-V Supply: 10 mW (Typical)
2 Applications
• Portable Systems
• Remote Data Acquisition
• Instrumentation and Control Systems
• Automotive
3 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 with
a range from 2.7 V to 5.25 V. Normal power
consumption using a 3 V or 5 V supply is 2 mW and
10 mW, respectively. The power-down feature
reduces the power consumption to as low as 2.6 µW
using a 5-V supply.
The ADC121S101 is packaged in 6-pin WSON and
SOT-23 packages. Operation over the temperature
range of −40°C to 125°C is specified.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
ADC121S101
WSON (6)
SOT-23 (6)
2.50 mm × 2.20 mm
2.90 mm × 1.60 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
INL, f_SCLK = 10 MHz
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.