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Product details

Parameters

Resolution (Bits) 10 Number of input channels 1 Sample rate (Max) (kSPS) 125 Interface type I2C Architecture SAR Input type Single-Ended Multi-channel configuration Rating Catalog Reference mode Supply Input range (Max) (V) 5.5 Input range (Min) (V) 0 Features Oscillator, Small Size Operating temperature range (C) -40 to 105 Power consumption (Typ) (mW) 0.26 Analog voltage AVDD (Min) (V) 2.7 SNR (dB) 61.8 Analog voltage AVDD (Max) (V) 5.5 INL (Max) (+/-LSB) 0.5 Digital supply (Min) (V) 2.7 Digital supply (Max) (V) 5.25 open-in-new Find other Precision ADCs (<=10MSPS)

Package | Pins | Size

SOT-23-THN (DDC) 6 5 mm² 2.9 x 1.6 open-in-new Find other Precision ADCs (<=10MSPS)

Features

  • 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 10 bits; no missing codes
  • Conversion Time 1µs (typ)
  • INL & DNL ±0.5 LSB (max)
  • Throughput Rate 188.9 kSPS (max)
  • Power Consumption (at 22kSPS)
    • 3V Supply 0.26 mW (typ)
    • 5V Supply 0.78 mW (typ)
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Description

The ADC101C021 is a low-power, monolithic, 10-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 ADC101C021 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 ADC101C021 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 ADC101C027 comes in a small SOT-6 package with an address selection input. The ADC101C027 provides three pin-selectable addresses while the VSSOP-8 version of the ADC101C021 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 guaranteed. Their low power consumption and small packages make this family of ADCs an excellent choice for use in battery operated equipment.

The ADC101C021 and ADC101C027 are part of a family of pin-compatible ADCs that also provide 12 and 8 bit resolution. For 12-bit ADCs see the ADC121C021 and ADC121C027. For 8-bit ADCs see the ADC081C021 and ADC081C027.

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Technical documentation

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No results found. Please clear your search and try again. View all 3
Type Title Date
* Datasheet ADC101C021/027 I2C-Compatible, 10-Bit ADC with Alert Function datasheet (Rev. D) Feb. 19, 2013
White papers Best of Baker's Best: Precision Data Converters -- SAR ADCs May 21, 2015
User guides ADC1X1C02X Evaluation Board User Guide Jan. 25, 2012

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Design tools & simulation

SIMULATION TOOLS Download
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide
CALCULATION TOOLS Download
Analog-to-digital converter (ADC) input driver design tool supporting multiple input types
ADC-INPUT-CALC ADC-INPUT-CALC is an online tool that provides support for designing the input buffer to an analog-to-digital converter (ADC). It offers 24 different op-amp based buffer circuits that can be used to drive an ADC input. The available topologies cover differential, single-ended and transformer-coupled (...)
CALCULATION TOOLS Download
Analog engineer's calculator
ANALOG-ENGINEER-CALC — The Analog Engineer’s Calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting op-amp gain with feedback (...)
Features
  • Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
    • Noise calculations
    • Common unit translation
  • Solves common amplifier circuit design problems
    • Gain selections using standard resistors
    • Filter configurations
    • Total noise for common amplifier configurations
  • (...)

Reference designs

REFERENCE DESIGNS Download
Accurate Temperature, Light Sensing, and Diagnostics Reference Design for Smart Grid Applications
TIDA-00811 — This reference design provides accurate measurements of ambient light intensity used to detect arc flash faults with a fast response of 1 ms, protecting or minimizing damages to power distribution switchgear. This design also monitors temperature (using switch, analog, digital or remote ), humidity (...)
document-generic Schematic document-generic User guide

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Package Pins Download
SOT-23-THIN (DDC) 6 View options

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