AD7707 is a complete analog front end for low frequency measurement applications. This 3-channel device has 16-bit resolution and high accuracy, and can accept either low level input signals or high level (±10 V) signals. It features a programmable gain front end, supports multiple serial interfaces, and operates with various power supply voltage ranges. This product is suitable for applications that require high precision measurement.
The AD7707 is a complete analog front end designed for low frequency measurement applications. It functions as a 3-channel device capable of accepting either low level input signals directly from transducers or high level (±10 V) signals, producing a serial digital output via Sigma-Delta conversion technology.
The device features two low level pseudo-differential analog input channels and one high level input channel. It includes an on-chip programmable gain front end with gains ranging from 1 to 128, allowing it to handle various signal ranges without external charge pumps. The modulator output is processed by an on-chip digital filter whose notch frequency can be programmed via a control register.
| Supply Voltage Range (Low Level) | 2.7 V to 3.3 V or 4.75 V to 5.25 V |
|---|---|
| High Level Input Range | ±10 V |
| Power Dissipation (3V) | 1 mW |
The typical power dissipation is 1 mW when operating with a 3 V supply.
The device dissipates a maximum of 1 mW when operating with a 3 V supply.
The converter provides up to 16 bits of performance with no missing codes.