ADC081C027 - 具有警报功能的 I2C 兼容、8 位模数转换器

ADC081C027是TI德州仪器公司的一款精密ADC(<=10MSPS)产品，ADC081C027是具有警报功能的 I2C 兼容、8 位模数转换器，本站介绍了ADC081C027的封装应用图解、特点和优点、功能等，并给出了与ADC081C027相关的TI元器件型号供参考。

ADC081C027 - 具有警报功能的 I2C 兼容、8 位模数转换器 - 精密ADC(<=10MSPS) - 模数转换器 - 德州仪器

产品描述

The ADC081C021 is a low-power, monolithic, 8-bit, analog-to-digital converter (ADC) that operates from a +2.7 to 5.5V supply. The converter is based on a successive approximation register architecture with an internal track-and-hold circuit that can handle input frequencies up to 11MHz. The ADC081C021 operates from a single supply which also serves as the reference. The device features an I2C-compatible serial interface that operates in all three speed modes, including high speed mode (3.4MHz).

The ADC'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 I2C 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 ADC081C021 comes in two packages: a small SOT-6 package with an alert output, and an VSSOP-8 package with an alert output and two address selection inputs. The ADC081C027 comes in a small SOT-6 package with an address selection input. The ADC081C027 provides three pin-selectable addresses while the VSSOP-8 version of the ADC081C021 provides nine pin-selectable addresses. Pin-compatible alternatives to the SOT-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 ensured. Their low power consumption and small packages make this family of ADCs an excellent choice for use in battery operated equipment.

The ADC081C021 and ADC081C027 are part of a family of pin-compatible ADCs that also provide 10- and 12-bit resolution. For 10-bit ADCs see the ADC101C021 and ADC101C027. For 12-bit ADCs see the ADC121C021 and ADC121C027.

产品特性

I2C-Compatible 2-Wire Interface Which Supports Standard (100kHz), Fast (400kHz), and High Speed (3.4MHz) Modes
Extended Power Supply Range (+2.7V to +5.5V)
Up to Nine Pin-Selectable Chip Addresses (VSSOP-8 only)
Out-of-Range Alert Function
Automatic Power-Down Mode While Not Converting
Very Small SOT-6 and VSSOP-8 Packages
±8kV HBM ESD Protection (SDA, SCL)

Key Specifications

Resolution: 8 bits; No Missing Codes
Conversion Time 1 µs (Typ)
INL & DNL: ±0.2 LSB (Max)
Throughput Rate: 188.9 ksps (Max)
Power Consumption (at 22ksps):
- 3V Supply: 0.26 mW (Typ)
- 5V Supply: 0.78 mW (Typ)

All trademarks are the property of their respective owners. I2C is a trademark of Texas Instruments.

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