AD7705BRUZ-REEL7

16bit delta A/D,慢速采样

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

.

Two Fully Differential Input Channel ADCs

.

Programmable Gain Front End

Gains from 1 to 128

.

Three-Wire Serial Interface

SPI®, QSPI™, MICROWIRE™ and DSP Compatible

Schmitt Trigger Input on SCLK

.

Ability to Buffer the Analog Input

.

2.7 V to 3.3 V or 4.75 V to 5.25 V Operation

.

Power Dissipation 1 mW max @ 3 V

.

Standby Current 8 µA max

.

16-Lead DIP, 16-Lead SOIC and TSSOP Packages