Overview
The AD7706BRZ-REEL is a 3-channel, 16-bit sigma-delta analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This component is designed for low-frequency measurement applications and serves as a complete analog front end. It is capable of accepting low-level input signals directly from transducers and producing serial digital output. The AD7706BRZ-REEL operates from a single supply voltage and is suitable for use in smart, microcontroller, or DSP-based systems.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 3 pseudo differential input channels |
| Resolution | 16 bits |
| Conversion Technique | Sigma-Delta (Σ-Δ) |
| Programmable Gain | Gains from 1 to 128 |
| Serial Interface | 3-wire SPI-, QSPI-, MICROWIRE-, and DSP-compatible |
| Operating 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 |
| Package Type | 16-lead SOIC |
| Operating Temperature | −40°C to +85°C |
Key Features
- High accuracy with no missing codes and 0.003% nonlinearity.
- Programmable gain front end with gains from 1 to 128.
- Ability to buffer the analog input.
- Serial interface configurable for 3-wire operation.
- Gain settings, signal polarity, and update rate selection configurable in software.
- Differential reference input.
- Input signal ranges from 0 mV to 20 mV through 0 V to 2.5 V and bipolar input ranges of ±10 mV through ±1.225 V.
Applications
The AD7706BRZ-REEL is ideal for various low-frequency measurement applications, including:
- Smart transducer systems.
- Microcontroller-based systems.
- DSP-based systems.
- Industrial control and automation.
- Medical devices requiring precise analog-to-digital conversion.
Q & A
- What is the resolution of the AD7706BRZ-REEL ADC?
The AD7706BRZ-REEL has a resolution of 16 bits. - How many input channels does the AD7706BRZ-REEL have?
The AD7706BRZ-REEL has three pseudo differential input channels. - What is the operating voltage range of the AD7706BRZ-REEL?
The AD7706BRZ-REEL 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 power dissipation of the AD7706BRZ-REEL?
The power dissipation is 1 mW maximum at 3 V. - What type of serial interface does the AD7706BRZ-REEL support?
The AD7706BRZ-REEL supports a 3-wire SPI-, QSPI-, MICROWIRE-, and DSP-compatible serial interface. - What are the programmable gain settings for the AD7706BRZ-REEL?
The gain settings range from 1 to 128. - What is the operating temperature range of the AD7706BRZ-REEL?
The operating temperature range is −40°C to +85°C. - What package type is the AD7706BRZ-REEL available in?
The AD7706BRZ-REEL is available in a 16-lead SOIC package. - Can the AD7706BRZ-REEL handle bipolar input ranges?
Yes, the AD7706BRZ-REEL can handle bipolar input ranges of ±10 mV through ±1.225 V. - Is the AD7706BRZ-REEL suitable for medical devices?
Yes, the AD7706BRZ-REEL is suitable for medical devices requiring precise analog-to-digital conversion.
