AD7705BRU-REEL7
数据手册.pdf3 V / 5 V ， 1毫瓦，2 / 3通道， 16位， Σ-Δ型ADC 3 V/5 V, 1 mW, 2-/3-Channel, 16-Bit, Sigma-Delta ADCs
Product Details
The AD7705 and AD7706 are complete 16-bit, low-cost, Sigma Delta ADCs intended for dc and low-frequency ac measurement applications. Their low power 1 mW max @ 3 V allows them to be used in loop-powered, battery-powered or locally-powered applications. The on-chip Programmable Gain Amplifier with gain settings from I through 128 can accommodate both low-level and high-level analog inputs with no external signal conditioning hardware.
The AD7705 has two differential channels while the AD7706 has one differential and two pseudo-differential channels. Differential reference inputs also allow maximum flexibility in tailoring the device for use in ratiometric applications.
### Features and Benefits
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- Two Fully Differential Input Channel ADCs
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- Programmable Gain Front End
Gains from 1 to 128
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- Three-Wire Serial Interface
SPI®, QSPI™, MICROWIRE™ and DSP Compatible
Schmitt Trigger Input on SCLK
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- Ability to Buffer the Analog Input
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- 2.7 V to 3.3 V or 4.75 V to 5.25 V Operation
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- Power Dissipation 1 mW max @ 3 V
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- Standby Current 8 µA max
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- 16-Lead DIP, 16-Lead SOIC and TSSOP Packages
