Overview
The AD7706BR-REEL7, produced by Analog Devices Inc., is a 3-channel, 16-bit, sigma-delta analog-to-digital converter (ADC) designed for low-frequency measurement applications. This device is part of the AD7705/AD7706 family, which offers a complete analog front end for systems requiring precise signal conversion. The AD7706 features three pseudo-differential analog input channels, a programmable gain front end, and a serial interface compatible with SPI, QSPI, MICROWIRE, and DSP systems. It operates from a single supply voltage of 2.7 V to 3.3 V or 4.75 V to 5.25 V, making it versatile for various system designs.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 3 |
| Resolution | 16 bits |
| Input Type | Pseudo-differential |
| Gain Range | 1 to 128 |
| Supply Voltage | 2.7 V to 3.3 V or 4.75 V to 5.25 V |
| Power Dissipation | 1 mW maximum @ 3 V |
| Standby Current | 8 μA maximum |
| Nonlinearity | ±0.003% |
| RMS Noise | <600 nV |
| Operating Temperature | −40°C to +85°C |
| Package Type | 16-lead SOIC, 16-lead PDIP, 16-lead TSSOP |
Key Features
- Programmable gain front end with gains from 1 to 128
- Serial interface compatible with SPI, QSPI, MICROWIRE, and DSP systems
- Self-calibration and system calibration options to eliminate gain and offset errors
- Low power dissipation with CMOS construction
- Power-down mode reducing standby power consumption to 20 μW typical
- Differential reference input and ability to buffer the analog input
- Excellent static performance with 16 bits, no missing codes, and low rms noise
Applications
The AD7706BR-REEL7 is ideal for use in smart, microcontroller, or DSP-based systems. It is particularly suited for low-frequency measurement applications such as industrial control systems, medical devices, and data acquisition systems. The device's low power consumption and high accuracy make it a reliable choice for battery-powered devices and systems requiring precise analog-to-digital conversion.
Q & A
- What is the resolution of the AD7706BR-REEL7?
The AD7706BR-REEL7 has a resolution of 16 bits. - How many channels does the AD7706BR-REEL7 have?
The AD7706BR-REEL7 has three pseudo-differential analog input channels. - What is the gain range of the AD7706BR-REEL7?
The gain range of the AD7706BR-REEL7 is from 1 to 128. - What are the supply voltage options for the AD7706BR-REEL7?
The AD7706BR-REEL7 operates from a single supply voltage of 2.7 V to 3.3 V or 4.75 V to 5.25 V. - What is the maximum power dissipation of the AD7706BR-REEL7 at 3 V?
The maximum power dissipation of the AD7706BR-REEL7 at 3 V is 1 mW. - What is the standby current of the AD7706BR-REEL7?
The standby current of the AD7706BR-REEL7 is 8 μA maximum. - What is the nonlinearity of the AD7706BR-REEL7?
The nonlinearity of the AD7706BR-REEL7 is ±0.003%. - What is the typical operating temperature range of the AD7706BR-REEL7?
The typical operating temperature range of the AD7706BR-REEL7 is −40°C to +85°C. - What package types are available for the AD7706BR-REEL7?
The AD7706BR-REEL7 is available in 16-lead SOIC, 16-lead PDIP, and 16-lead TSSOP packages. - Does the AD7706BR-REEL7 support self-calibration?
Yes, the AD7706BR-REEL7 supports self-calibration and system calibration options to eliminate gain and offset errors.
