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ADC121C027

Texas Instruments
Part Number ADC121C027
Manufacturer Texas Instruments
Description 12-Bit Analog-to-Digital Converter
Published Jun 3, 2022
Detailed Description ADC121C021, ADC121C021Q, ADC121C027 www.ti.com SNAS415F – JANUARY 2008 – REVISED MARCH 2013 ADC121C021/ADC121C021Q/AD...
Datasheet PDF File ADC121C027 PDF File

ADC121C027
ADC121C027

Overview
ADC121C021, ADC121C021Q, ADC121C027 www.
ti.
com SNAS415F – JANUARY 2008 – REVISED MARCH 2013 ADC121C021/ADC121C021Q/ADC121C027 I2C-Compatible, 12-Bit Analog-to-Digital Converter with Alert Function Check for Samples: ADC121C021, ADC121C021Q, ADC121C027 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 Only) • Out-of-Range Alert Function • Automatic Power-Down Mode while Not Converting • Very Small 6-Pin SOT and 8-Pin VSSOP Packages • ADC121C021Q is an Automotive Grade Product that is AEC-Q100 Grade 2 Qualified APPLICATIONS • System Monitoring • Peak Detection • Portable Instruments • Medical Instruments • Test Equipment • Automotive KEY SPECIFICATIONS • Resolution: 12 Bits (No Missing Codes) • Conversion Time: 1µs (Typ) • INL & DNL: ±1 LSB (Max) (Up to 22ksps) • Throughput Rate: 188.
9 ksps (Max) • Power Consumption (at 22 ksps) – 3V Supply: 0.
26 mW (Typ) – 5v Supply: 0.
78 mW (Typ) DESCRIPTION These converters are low-power, monolithic, 12-bit, analog-to-digital converters (ADCs) that operates from a +2.
7 to 5.
5V supply.
The converter is based upon a successive approximation register architecture with an internal track-and-hold circuit that can handle input frequencies up to 11MHz.
These converters operate from a single supply which also serves as the reference.
The device features an I2Ccompatible serial interface that operates in all three speed modes, including high speed mode (3.
4MHz).
The ADC121C021'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...


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