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ADS7883 Datasheet(PDF) 1 Page - Texas Instruments |
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ADS7883 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 20 page 1 FEATURES APPLICATIONS DESCRIPTION ADS7883 www.ti.com ....................................................................................................................................................................................................... SLAS594 – JULY 2008 12-BIT, 3-MSPS, MICROPOWER, MINIATURE SAR ANALOG-TO-DIGITAL CONVERTER • Base Band Converters in Radio • 3-MHz Sample Rate Serial Device Communication • 12-Bit Resolution • Motor Current/Bus Voltage Sensors in Digital • Zero Latency Drives • 48-MHz Serial Interface • Optical Networking (DWDM, MEMS Based • Supply Range: 2.7 V to 5.5 V Switching) • Low Power Dissipation: • Optical Sensors • Battery Powered Systems – 6.45 mW at 3-V VDD, 2 MSPS • Medical Instrumentations – 13.5 mw at 5-V VDD, 3 MSPS • High-Speed Data Acquisition Systems • ±0.6 LSB INL, ±0.5 LSB DNL • High-Speed Closed-Loop Systems • 72 dB SINAD, –84 dB THD • Unipolar Input Range: 0 V to V DD • Power-Down Current: 1 µA • Wide Input Bandwidth: 30 MHz at 3 dB • 6-Pin SOT23 Package The ADS7883 is a 12-bit, 3-MSPS analog-to-digital converter (ADC). The device includes a capacitor based SAR A/D converter with inherent sample and hold. The serial interface in the 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 device operates from a wide supply range from 2.7 V to 5.5 V. The low power consumption of the device makes it suitable for battery-powered applications. The device also includes a power saving power-down feature for when the device is operated at lower conversion speeds. The high level of the digital input to the device is not limited to device VDD. Therefore the digital input can go as high as 5.5 V when the device supply is 2.7 V. This feature is useful when digital signals are received from another circuit with different supply levels. This also reduces restrictions on power-up sequencing. The ADS7883 is available in a 6-pin SOT23 package and is specified for operation from –40°C to 125°C. MicroPower Miniature SAR Converter Family BIT < 300 KSPS 300 KSPS – 1.25 MSPS 3 MSPS 3 MSPS for 4.5 VDD to 5.5 VDD 12-Bit ADS7866 (1.2 VDD to 3.6 VDD) ADS7886 (2.35 VDD to 5.25 VDD) ADS7883 2 MSPS for 2.7 VDD to 4.5 VDD 10-Bit ADS7867 (1.2 VDD to 3.6 VDD) ADS7887 (2.35 VDD to 5.25 VDD) ADS7884 (2.7 VDD to 5.5 VDD) 8-Bit ADS7868 (1.2 VDD to 3.6 VDD) ADS7888 (2.35 VDD to 5.25 VDD) ADS7885 (2.7 VDD to 5.5 VDD) 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 2008, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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