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Product details

Parameters

Resolution (Bits) 10 Number of input channels 1 Sample rate (Max) (kSPS) 3000 Interface SPI 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 Small Size Operating temperature range (C) -40 to 125 Power consumption (Typ) (mW) 15 Analog voltage AVDD (Min) (V) 2.7 Analog voltage AVDD (Max) (V) 5.5 INL (Max) (+/-LSB) 0.8 Digital supply (Min) (V) 2.7 Digital supply (Max) (V) 5.5 Approx. price (US$) 1.48 | 1ku open-in-new Find other Precision ADCs (<=10MSPS)

Package | Pins | Size

SOT-23 (DBV) 6 - open-in-new Find other Precision ADCs (<=10MSPS)

Features

  • 3-MHz Sample Rate Serial Device
  • 10-Bit Resolution — ADS7884
  • 8-Bit Resolution — ADS7885
  • Zero Latency
  • 48-MHz Serial Interface
  • Supply Range: 2.7 V to 5.5 V
  • Low Power Dissipation:
    • 6.8 mW at 3-V VDD, 2.5 MSPS
    • 15 mw at 5-V VDD, 3 MSPS
  • ±0.3 LSB INL, ±0.3 LSB DNL — ADS7884
  • ±0.15 LSB INL, ±0.1 LSB DNL — ADS7885
  • 61.7 dB SINAD, -81 dB THD — ADS7884
  • 49.8 dB SINAD, -68 dB THD — ADS7885
  • Unipolar Input Range: 0 V to VDD
  • Powerdown Current: 1 µA
  • Wide Input Bandwidth: 30 MHz at 3 dB
  • 6-Pin SOT23 Package
  • APPLICATIONS
    • Base Band Converters in Radio Communication
    • Motor Current/Bus Voltage Sensors in Digital Drives
    • Optical Networking (DWDM, MEMS Based Switching)
    • Optical Sensors
    • Battery Powered Systems
    • Medical Instrumentations
    • High-Speed Data Acquisition Systems
    • High-Speed Closed-Loop Systems

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Description

The ADS7884 is a 10-bit, 3-MSPS analog-to-digital converter (ADC), and the ADS7885 is a 8-bit, 3-MSPS ADC. The devices include a capacitor based SAR A/D converter with inherent sample and hold. The serial interface in each device is controlled by the CS and SCLK signals for glueless connections with microprocessors and DSPs. The input signal is sampled with the falling edge of CS, and SCLK is used for conversion and serial data output.

The devices operate from a wide supply range from 2.7 V to 5.5 V. The low power consumption of the devices make them suitable for battery-powered applications. The devices also include a power saving powerdown feature for when the devices are operated at lower conversion speeds.

The high level of the digital input to the device is not limited to device VDD. This means the digital input can go as high as 5.5 V when device supply is 2.7 V. This feature is useful when digital signals are coming from other circuit with different supply levels. Also this relaxes restriction on power up sequencing.

The ADS7884 and ADS7885 are available in a 6-pin SOT23 package and are specified for operation from -40°C to 125°C.

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Technical documentation

= Featured
No results found. Please clear your search and try again. View all 5
Type Title Date
* Datasheet 10-/8-Bit, 3-MSPS, microPOWER, Miniature SAR Analog-to-Digital Converters datasheet Aug. 24, 2007
More literature Best of Baker's Best: Precision Data Converters -- SAR ADCs May 21, 2015
Application notes Determining Minimum Acquisition Times for SAR ADCs, part 2 Mar. 17, 2011
Application notes Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A) Nov. 10, 2010
User guides ADS788xEVM Users Guide (Rev. B) Aug. 28, 2008

Design & development

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

Hardware development

EVALUATION BOARDS Download
Description

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 (...)

EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

The ADS7884EVM is a full-featured reference design, prototype, and software platform for the ADS7884ADC. The reference design feature contains essential circuitry to showcase the A/D converter. It gives the ability to change the input components to use different input frequencies. As a prototype (...)

Features
  • The EVM is a full-featured evaluation module for the ADS7884 10-bit, 3-MSPS, single-channel ADC
  • On board signal conditioning using a precision THS4031 operational amplifier
  • The on board reference voltage is derived from the ADS7884 device
  • Input digital buffers are not limited to device VDD
  • Built using (...)

Design tools & simulation

SIMULATION MODELS Download
SLAM095.ZIP (50 KB) - IBIS Model
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 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
  • (...)

CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 6 View options

Ordering & quality

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