AD7705BR

Two Fully Differential, Input Channel, ADC, Three-Wire Serial Interface, 16pin-SOIC

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Price:: US $2.80~3.20 / piece [Get Latest Price]

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	US $2.80~3.20

PartNumber:: AD7705BR

Brand:: Analog Devices - ADI | Pack: SOP | D/C: 10+

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Products Upload time: 2011-07-22

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Part Number:AD7705BR
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Product Summary

The AD7705BR is a Two Fully Differential Input Channel ADC. It is a complete analog front end for low frequency measurement applications. The AD7705BR can accept low level input signals directly from a transducer and produce a serial digital output. The selected input signal is applied to a proprietary programmable gain front end based around an analog modulator. The modulator output is processed by an on-chip digital filter. The AD7705BR features a differential reference input. Input signal ranges of 0 mV to +20mV through 0 V to +2.5V can be incorporated on both devices when operating with a VDD of 5 V and a reference of 2.5 V. It is ideal for use in smart, microcontroller or DSP-based systems.

Parametrics

AD7705BR absolute maximum ratings: (1)VDD to GND:–0.3V to +7V; (2)Analog Input Voltage to GND:–0.3V to VDD + 0.3V; (3)Reference Input Voltage to GND:–0.3V to VDD + 0.3V; (4)Digital Input Voltage to GND:–0.3V to VDD + 0.3V; (5)Digital Output Voltage to GND:–0.3V to VDD + 0.3V; (6)Operating Temperature Range: Commercial (B Version):–40℃ to +85℃; (7)Storage Temperature Range:–65℃ to +150℃; (8)Junction Temperature:+150℃; (9)SOIC Package, Power Dissipation:450 mW, θJA Thermal Impedance:75℃/W; (10)Lead Temperature, Soldering: Vapor Phase (60 sec):+215℃, Infrared (15 sec):+220℃; (11)ESD Rating:>4000V.

Features

AD7705BR features: (1)Two Fully Differential Input Channel ADCs; (2)16 Bits No Missing Codes; (3)0.003% Nonlinearity; (4)Programmable Gain Front End:Gains from 1 to 128; (5)Three-Wire Serial Interface: SPI, QSPI, MICROWIRE and DSP Compatible, Schmitt Trigger Input on SCLK; (6)Ability to Buffer the Analog Input; (7)2.7 V to 3.3 V or 4.75 V to 5.25 V Operation; (8)Power Dissipation 1 mW max @ 3V; (9)Standby Current 8 mA max; (10)16-Lead DIP, 16-Lead SOIC and TSSOP Packages.