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I 2 C-compatible 2-wire interface with support for standard (100kHz), fast (400kHz) and high-speed (3.4MHz) modes
- Extended supply voltage range (+2.7 V to +5.5 V)
- Up to 9 pins selectable chip address (MSOP - 8 only)
- Range of alert features
- Automatic power-down mode, not conversion
- Very small TSOT-6 and MSOP-8 packages
- ± HBM ESD protection (SDA, SCL) at 8kV
illustrate
ADC081C021 is a low-power, monolithic 8-bit chip, Analog to digital Converter (ADC) that operates from a 2.7 to 5.5V supply. The converter is based on a successive approximation register structure with internal track and hold circuitry and can handle input frequencies up to 11MHz. “ ADC081C021 Operate from a single supply, which is also used as a reference. The device has: I 2 C compatible Serial interface, operates in all three speed modes, including high-speed mode (3.4MHz).
The ADC's alarm function provides an interrupt when an analog input is activated, violating a programmable upper or lower limit. The device has an automatic conversion mode that frees up the controller and I 2 C interface. In this mode, the ADC constantly monitors the analog input for "range" conditions and provides an interrupt if the measured voltage is out of range.
ADC081C021 comes from two packages: a small TSOT-6 package with alarm output, an MSOP-8 package with alarm output and 2 address selection inputs. “ ADC081C027 In a small TSOT-6 package with an address selection input. “ ADC081C027 Three pin selectable addresses are available, while the ADC081C021 with the MSOP-8 version offers 9 pin selectable addresses. Pin-compatible alternative TSOT-6 options are available with additional address options.
The power consumption for +3 V or +5 V power supply is 0.26mW and 0.78mW, respectively. Automatic power-off function reduces power consumption to less than 1μW without conversion. Guaranteed industrial temperature range from -40°C to +105°C above operation. Its low power consumption and small package make this series of ADCs a good choice for using battery-powered devices.
“ ADC081C021 and ADC081C027 Pin-compatible ADCs in select homes are also available in 10- and 12-bit resolutions. For 10-bit ADCs see: ADC101C021 and ADC101C027 。 For 12-bit ADCs, see: ADC121C021 and ADC121C027 。
Key specifications:
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resolution
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8-digit no-code
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Conversion time
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Time of 1 μs (typical)
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INL and DNL
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± 0.2 LSB (max)
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Throughput rate
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188.9ksps (max)
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Power consumption (at 22ksps)
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3V power supply
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0.26 mW (typical)
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5V power supply
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0.78 mW (typical)
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apply
- System monitoring
- Peak detection
- Portable instrument
- Medical devices
- Test equipment
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