- The sample rate within a specified range.
- 6-pin LLP and SOT-23 packages
- Variable power management
- Single supply with 2.7V - 5.25V range
- SPI™/QSPI/MICROWIRE/™ DSP COMPATIBLE
illustrate
The ADC121S021 is a high speed serial interface for a low power, single CMOS 12-bit analog-to-digital converter. Unlike the usual practice of specifying performance at a single sample rate, the ADC121S021 is specified over a sample rate range of 200 ksps that exceeds 50 ksps. The converter is a successive approximation register structure based on an internal tracking and holding circuitry.
The serial data output is binary and is compatible with several standards such as SPI™, QSPI™, MICROWIRE Serial interface with many common DSPs.
The ADC121S021 operates with a single supply and can range from +2.7 V to +5.25 V. Normal +3.6 V or +5.25 V power consumption is 1.5 MW and 7.9 MW, respectively. The power-down function reduces power consumption down to 2.6 microwatts and uses voltages of +5.25 V.
The ADC121S021 is packaged in a 6-pin LLP and SOT-23 package. Operation in the industrial temperature range is guaranteed from -40 °C to +85 °C.
Main specifications
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DNL
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0.45 / -0.25 LSB (typical)
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Integral Nonlinearity (INL)
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0.45 / -0.4 LSB (typical)
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Signal-to-noise ratio
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72.3 dB typical
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power consumption
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3.6V power supply
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1.5 MW (typical)
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5.25V power supply
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7.9 mW (typical)
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apply
- Portable systems
- Remote data collection
- Instrumentation and control systems
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