Overview
The AD7729ARUZ-REEL, manufactured by Analog Devices Inc., is a monolithic 3 V CMOS device designed as a low power, two-channel analog-to-digital converter (ADC) with integrated signal conditioning. This device features two high-performance sigma-delta ADCs, each with digital filtering, and a common bandgap reference. It also includes a control DAC for functions such as Automatic Gain Control (AGC) and Automatic Frequency Control (AFC). The auxiliary functions of the device can be accessed via the auxiliary port (ASPORT).
Key Specifications
| Parameter | Value | Units | Test Conditions/Comments |
|---|---|---|---|
| Resolution | 15 Bits | ||
| ADC Signal Range | 2 VREFCAP V p-p | Differential | |
| VREFCAP Absolute Voltage | 1.3 ± 5% | V | |
| VREFOUT Absolute Voltage | 1.3 ± 10% | V | |
| AVDD1, AVDD2 | 2.7/3.3 V | Min/Max | |
| Maximum Output Word Rate | 270 kHz | ||
| Package Type | 28-Lead TSSOP or 28-Lead SOIC | ||
| Logic Input High Voltage (VINH) | VDD - 0.8 V | V | Min |
| Logic Input Low Voltage (VINL) | 0.8 V | V | Max |
Key Features
- Low power consumption, suitable for battery-powered applications.
- Two high-performance sigma-delta ADCs with digital filtering.
- Common bandgap reference for both ADCs.
- Control DAC for functions such as AGC and AFC.
- Auxiliary port (ASPORT) for accessing auxiliary functions.
- Internal autocalibration capability to reduce offset errors.
- Available in 28-pin TSSOP and 28-pin SOIC packages.
Applications
- Wireless communication systems, particularly in the receive path.
- Industrial control and automation systems requiring precise analog-to-digital conversion.
- Medical devices that need low power, high accuracy ADCs.
- Aerospace and defense applications where reliability and precision are critical.
- Automotive systems, especially those requiring robust and low power ADC solutions.
Q & A
- What is the resolution of the AD7729ARUZ-REEL ADC?
The AD7729ARUZ-REEL has a resolution of 15 bits.
- What is the maximum output word rate of the AD7729ARUZ-REEL?
The maximum output word rate is 270 kHz.
- What types of packages are available for the AD7729ARUZ-REEL?
The device is available in 28-pin TSSOP and 28-pin SOIC packages.
- Does the AD7729ARUZ-REEL support autocalibration?
Yes, the AD7729ARUZ-REEL has internal autocalibration capability to reduce offset errors.
- What is the purpose of the control DAC in the AD7729ARUZ-REEL?
The control DAC is used for functions such as Automatic Gain Control (AGC) and Automatic Frequency Control (AFC).
- What is the typical power supply voltage range for the AD7729ARUZ-REEL?
The typical power supply voltage range is 2.7 to 3.3 V.
- How many analog input channels does the AD7729ARUZ-REEL have?
The device has two differential analog input channels (I and Q receive channels).
- Is the AD7729ARUZ-REEL RoHS compliant?
Yes, the AD7729ARUZ-REEL is RoHS compliant.
- What is the significance of the auxiliary port (ASPORT) in the AD7729ARUZ-REEL?
The auxiliary port (ASPORT) allows access to auxiliary functions of the device.
- What kind of signal conditioning does the AD7729ARUZ-REEL provide?
The device provides signal conditioning through its integrated sigma-delta ADCs and digital filtering.
