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ADS7886SDBVT Datasheet(PDF) 1 Page - Texas Instruments |
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ADS7886SDBVT Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 17 page  BurrBrown Products from Texas Instruments FEATURES APPLICATIONS DESCRIPTION ADS7886 SLAS492 – SEPTEMBER 2005 12-Bit, 1-MSPS, MICRO-POWER, MINIATURE SAR ANALOG-TO-DIGITAL CONVERTERS • Base Band Converters in Radio • 1-MHz Sample Rate Serial Device Communication • 12-Bit Resolution • Motor Current/Bus Voltage Sensors in Digital • Zero Latency Drives • 20-MHz Serial Interface • Optical Networking (DWDM, MEMS Based • Supply Range: 2.35 V to 5.25 V Switching) • Typical Power Dissipation at 1 MSPS: • Optical Sensors • Battery Powered Systems – 3.9 mW at 3-V VDD • Medical Instrumentations – 7.5 mW at 5-V VDD • High-Speed Data Acquisition Systems • INL ±1.25 LSB Maximum, ±0.65 LSB (Typical) • High-Speed Closed-Loop Systems • DNL ±1 LSB Maximum, +0.4 / -0.65 LSB (Typical) • Typical AC Performance: 72.25 dB SINAD, -84 dB THD • Unipolar Input Range: 0 V to VDD • Power Down Current: 1 µA • Wide Input Bandwidth: 15 MHz at 3 dB • 6-Pin SOT23 and SC70 Packages The ADS7886 is a 12-bit, 1-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 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 device operates from a wide supply range from 2.35 V to 5.25 V. The low power consumption of the device makes it suitable for battery-powered applications. The device also includes a powerdown feature for power saving 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 5.25 V when device supply is 2.35 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 ADS7886 is available in 6-pin SOT23 and SC70 packages and is specified for operation from -40°C to 125°C. Micro-Power Miniature SAR Converter Family BIT < 300 KSPS 300 KSPS – 1.25 MSPS 12-Bit ADS7866 (1.2 VDD to 3.6 VDD) ADS7886 (2.35 VDD to 5.25 VDD) 10-Bit ADS7867 (1.2 VDD to 3.6 VDD) ADS7887 (2.35 VDD to 5.25 VDD) 8-Bit ADS7868 (1.2 VDD to 3.6 VDD) ADS7888 (2.35 VDD to 5.25 VDD) 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 © 2005, 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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