The AD7705/AD7706 are complete analog front ends for low frequency measurement applications. These 2-/3-channel devices can accept low level input signals directly from a transducer and produce serial digital output. The devices employ a Σ-Δ conversion technique with 16-bit resolution and low noise.
The AD7705 and AD7706 are complete analog front-end devices designed for low frequency measurement applications. They feature a Sigma-Delta conversion technique to achieve up to 16 bits of no missing codes performance. The AD7705 offers two fully differential input channels, while the AD7706 provides three pseudo differential input channels.
| Resolution | 16 bits |
|---|---|
| Nonlinearity | 0.003% |
| Programmable Gain Range | 1 to 128 |
| Supply Voltage (3V) | 2.7 V to 3.3 V |
| Supply Voltage (5V) | 4.75 V to 5.25 V |
| Power Dissipation | 1 mW |
| Standby Current | 8 μA |
| Packages | 16-lead PDIP, SOIC, TSSOP |
The AD7705 features two fully differential analog input channels, while the AD7706 features three pseudo differential input channels.
The maximum power dissipation is 1 mW when operating with a 3 V supply.
The typical standby current is 8 μA maximum.