ADC121S021
- Specified Over a Range of Sample Rates
- Variable Power Management
- Single Power Supply With 2.7-V to 5.25-V Range
- Compatible With the SPI, QSPI, MICROWIRE, and DSP
- Key Specifications:
- DNL: 0.45 and –0.25 LSB (Typical)
- INL: 0.45 and –0.4 LSB (Typical)
- SNR: 72.3 dB (Typical)
- Power Consumption
- 3.6-V Supply: 1.5 mW (Typical)
- 5.25-V Supply: 7.9 mW (Typical)
The ADC121S021 device 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 ADC121S021 is fully specified over a sample rate range of 50 ksps to 200 ksps. 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 ADC121S021 operates with a single supply that can range from 2.7 V to 5.25 V. Normal power consumption using a 3.6-V or 5.25-V supply is 1.5 mW and 7.9 mW, respectively. The power-down feature reduces the power consumption to as low as 2.6 µW using a 5.25-V supply.
The ADC121S021 is packaged in 6-pin WSON and SOT-23 packages. Operation over the industrial temperature range of 40°C to 85°C is ensured.
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Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | ADC121S021 Single-Channel, 50- to 200-ksps, 12-Bit A/D Converter datasheet (Rev. J) | PDF | HTML | 31 Mar 2016 |
E-book | Best of Baker's Best: Precision Data Converters -- SAR ADCs | 21 May 2015 | ||
EVM User's guide | 50 ksps to 1 Msps, 12-, 10- and 8-Bit EVM Users Manual | 20 Feb 2012 | ||
User guide | WEBENCH® Sensor Designer Differential Sensor PCB (unpopulated) User Guide | 27 Jan 2012 | ||
Application note | Low-Voltage Current Loop Transmitter | 02 Aug 2007 | ||
Application note | Improving Machinery Vibration Analysis | 07 Jul 2006 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
ANALOG-ENGINEER-CALC — Analog engineer's calculator
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
TINA-TI — SPICE-based analog simulation program
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
SOT-23 (DBV) | 6 | Ultra Librarian |
WSON (NGF) | 6 | Ultra Librarian |
Ordering & quality
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