ADS7887M

www.ti.com

SLAS750A

– JUNE 2011 – REVISED JUNE 2011

10-BIT 1.25-MSPS MICRO-POWER MINIATURE

SAR ANALOG-TO-DIGITAL CONVERTER

Check for Samples: ADS7887M

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FEATURES

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1.25-MHz Sample Rate Serial Device

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10-Bit Resolution

APPLICATIONS

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Zero Latency

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Base Band Converters in Radio

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25-MHz Serial Interface

Communication

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Supply Range: 2.35 V to 5.25 V

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Motor Current/Bus Voltage Sensors in Digital

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Typical Power Dissipation at 1.25 MSPS:

Drives

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Optical Networking (DWDM, MEMS Based

Switching)

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±0.35 LSB INL, DNL

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Optical Sensors

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61-dB SINAD,

–84-dB THD

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Battery Powered Systems

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Medical Instrumentations

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Power Down Current: 10

µA Max

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High-Speed Data Acquisition Systems

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Wide Input Bandwidth: 15 MHz at 3 dB

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High-Speed Closed-Loop Systems

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6-Pin SOT23 Package

DESCRIPTION

The ADS7887 is a 10-bit 1.25-MSPS analog-to-digital converter (ADC). The device includes a capacitor-based

SAR A/D converter with inherent sample and hold. The serial interface 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 power-saving powerdown feature

for when the device is operated at lower conversion speeds.

high as 5.25 V when device supply is 2.35 V. This feature is useful when digital signals are coming from other

circuits with different supply levels. Also, this relaxes restriction on power-up sequencing.

The ADS7887 is available in a 6-pin SOT23 package and is specified for operation from

–55°C to 125°C.

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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

© 2011, 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.