1MSPS, 12-/10-/8-Bit A/D Converters in SOT-23 & LLP


Product details


Resolution (Bits) 12 Number of input channels 1 Sample rate (Max) (kSPS) 1000 Interface type SPI, Microwire (Serial I/O) Architecture SAR Input type Single-Ended Multi-channel configuration Rating Catalog Reference mode Supply Input range (Max) (V) 5.25 Input range (Min) (V) 0 Features Small Size Operating temperature range (C) -40 to 125 Power consumption (Typ) (mW) 2 Analog voltage AVDD (Min) (V) 2.7 SNR (dB) 72.5 Analog voltage AVDD (Max) (V) 5.25 INL (Max) (+/-LSB) 1 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 (DBV) 6 5 mm² 2.9 x 1.6 open-in-new Find other Precision ADCs (<=10MSPS)


  • Variable Power Management
  • Packaged in 6-Pin SOT-23
  • Power Supply Used as Reference
  • Single 2.7-V to 5.25-V Supply Operation
  • Compatible With SPI™, QSPI™, MICROWIRE™,
    and DSP
  • Key Specifications
    • Resolution With No Missing Codes (12-Bit, 10-
      Bit, and 8-Bit)
    • Conversion Rate: 1 MSPS
    • DNL: 0.5, –0.3 LSB (Typical)
    • INL: ±0.4 LSB (Typical)
    • Power Consumption:
      • 3-V Supply: 2 mW (Typical)
      • 5-V Supply: 10 mW (Typical)
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The ADCS7476, ADCS7477, and ADCS7478 devices are low power, monolithic CMOS 12-, 10-, and 8-bit analog-to-digital converters that operate at 1 MSPS. The ADCS747x devices are a drop-in replacement for Analog Device’s AD747x. Each device is based on a successive approximation register architecture with internal track-and-hold. The serial interface is compatible with several standards, such as SPI, QSPI, MICROWIRE, and many common DSP serial interfaces.

The ADCS747x uses the supply voltage as a reference, enabling the device to operate with a full-scale input range of 0 to VDD. The conversion rate is determined from the serial clock (SCLK) speed. These converters offer a shutdown mode, which can be used to trade throughput for power consumption. The ADCS747x is operated with a single supply that can range from 2.7 V to 5.25 V. Normal power consumption during continuous conversion, using a 3-V or 5-V supply, is 2 mW or 10 mW respectively. The power-down feature, which is enabled by a chip select (CS) pin, reduces the power consumption to under 5 µW using a 5-V supply. All three converters are available in a 6-pin SOT-23 package, which provides an extremely small footprint for applications where space is a critical consideration. These products are designed for operation over the automotive and extended industrial temperature range of –40°C to 125°C.

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Technical documentation

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Type Title Date
* Data sheet ADCS747x 1-MSPS, 12-Bit, 10-Bit, and 8-Bit A/D Converters datasheet (Rev. G) May 25, 2016
E-book Best of Baker's Best: Precision Data Converters -- SAR ADCs May 21, 2015
User guide 50 ksps to 1 Msps, 12-, 10- and 8-Bit EVM Users Manual Feb. 20, 2012

Design & development

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Software development

Data acquisition and analysis software
WAVEVISION4 WaveVision 4 software is part of the WaveVision system that includes the WaveVision Data Capture Board. The WaveVision system an easy-to-use data acquisition and analysis tool, designed to help you evaluate TI's analog-to-digital and digital-to-analog converter products. Used in conjunction with (...)

  • Transfers data rapidly with full-speed USB 1.1 and 2.0.
  • Provides jumperless, plug-and-play configuration.
  • Supports a wide variety of ADC and DAC Evaluation Boards.
  • Fast Capture (up to 200 MHz) with wide (36 bit) data bus.
  • Capable of performing FFT analysis and hardware histograms.
  • May be used with any (...)

Design tools & simulation

PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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  • Supports simultaneous analysis of multiple products
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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
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 (...)
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 (...)
  • Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
    • Noise calculations
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  • Solves common amplifier circuit design problems
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SOT-23 (DBV) 6 View options

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