ANALOG-TO-DIGITAL CONVERTER
BurrĆBrown Products from Texas Instruments
ADS8405
SLAS427 – DECEMBER 2004
16-BIT, 1.25-MSPS, UNIPOLAR PSEUDO-DIFFEREN...
Description
BurrĆBrown Products from Texas Instruments
ADS8405
SLAS427 – DECEMBER 2004
16-BIT, 1.25-MSPS, UNIPOLAR PSEUDO-DIFFERENTIAL INPUT, MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH PARALLEL INTERFACE
FEATURES
Unipolar Pseudo-Differential Input, 0 V to Vref 16-Bit NMC at 1.25 MSPS ±2 LSB INL Max, -1/+1.5 LSB DNL 86 dB SNR, -90 dB THD at 100 kHz Input Zero Latency Internal 4.096-V Reference High-Speed Parallel Interface Single 5-V Analog Supply Wide I/O Supply: 2.7 V to 5.25 V Low Power: 155 mW at 1.25 MHz Typ Pin Compatible With ADS8411/8401 48-Pin TQFP Package
APPLICATIONS
DWDM Instrumentation High-Speed, High-Resolution, Zero Latency
Data Acquisition Systems Transducer Interface Medical Instruments Communications
DESCRIPTION
The ADS8405 is a 16-bit, 1.25-MHz A/D converter with an internal 4.096-V reference. The device includes a 16-bit capacitor-based SAR A/D converter with inherent sample and hold. The ADS8405 offers a full 16-bit interface and an 8-bit option where data is read using two 8-bit read cycles if necessary.
The ADS8405 has a unipolar pseudo-differential input. It is available in a 48-lead TQFP package and is characterized over the industrial -40°C to 85°C temperature range.
Type/Speed 18-Bit Pseudo-Diff
500 kHz ADS8383
18-Bit Pseudo-Bipolar, Fully Diff 16-Bit Pseudo-Diff 16-Bit Pseudo-Bipolar, Fully Diff 14-Bit Pseudo-Diff 12-Bit Pseudo-Diff
High Speed SAR Converter Family
~600 kHz
750 kHz
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