ADC081C021

ADC081C021, ADC081C027 www.ti.com SNAS447C – FEBRUARY 2008 – REVISED MARCH 2013 ADC081C021/ADC081C027 I2C-Compatible, 8-Bit Analog-to-Digital Converter with Alert Function Check for Samples: ADC081C021, ADC081C027 FEATURES 1 23 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) APPLICATIONS System Monitoring Peak Detection Portable Instruments Medical Instruments Test Equipment 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) DESCRIPTION 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 provid...