Overview
The AD4005BRMZ is a 16-bit, precision successive approximation register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This high-accuracy, high-speed ADC operates from a single power supply and features an externally applied reference voltage that can be set independent of the supply voltage. The AD4005 is part of the AD4001/AD4005 family, known for their low power consumption and high performance, making them suitable for a variety of applications requiring precise and efficient analog-to-digital conversion.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 16 | - | - | Bits |
| Analog Input Voltage Range | -VREF | - | +VREF | V |
| Operating Input Voltage (VIN+, VIN- to GND) | -0.1 VREF | - | +0.1 VREF | V |
| Common-Mode Input Range | VREF/2 - 0.125 VREF/2 | - | VREF/2 + 0.125 VREF/2 | V |
| Common-Mode Rejection Ratio (CMRR) | 68 | - | - | dB |
| Analog Input Current (Acquisition Phase, T = 25°C) | 0.3 | - | - | nA |
| Throughput Rate (fS) | - | - | 1 MSPS | - |
| Conversion Time | - | - | 1000 ns | - |
| Integral Nonlinearity Error (INL) | -0.4 | ±0.2 | +0.4 | LSB |
| Differential Nonlinearity Error (DNL) | -0.5 | ±0.2 | +0.5 | LSB |
| Zero Error | -1.5 | ±0.1 | +1.5 | LSB |
| Gain Error | -16.5 | ±0.4 | +16.5 | LSB |
| Power Supply Voltage (VDD) | 1.71 | - | 1.89 V | V |
| Operating Temperature Range | -40 | - | +125 | °C |
Key Features
- High Accuracy and Speed: The AD4005 offers 16-bit resolution with a throughput rate of up to 1 MSPS, ensuring high accuracy and speed in analog-to-digital conversion.
- Low Power Consumption: The ADC power scales linearly with throughput, making it energy-efficient for various applications.
- Easy Drive Technology: Reduces signal chain complexity and power consumption, enabling higher channel density and eliminating the need for a dedicated ADC driver.
- Input Span Compression: Allows access to the full ADC code range without requiring a negative supply to the ADC driver amplifier.
- Input Overvoltage Clamp: Protects the ADC inputs against overvoltage events, minimizing disturbances on the reference pin and eliminating the need for external protection diodes.
- High-Z Mode: Significantly reduces input current, particularly during the acquisition phase, enhancing the ADC's performance in various operating conditions.
Applications
- Industrial Automation: Suitable for precision measurement and control systems in industrial environments.
- Medical Devices: Ideal for medical equipment requiring high accuracy and low power consumption, such as patient monitoring systems and diagnostic devices.
- Aerospace and Defense: Used in various military and aerospace applications where high reliability and precision are critical.
- Automotive Systems: Applicable in automotive sensors and control systems that demand high accuracy and robust performance.
- Test and Measurement Equipment: Employed in precision measurement instruments and data acquisition systems.
Q & A
- What is the resolution of the AD4005 ADC?
The AD4005 has a resolution of 16 bits.
- What is the maximum throughput rate of the AD4005?
The maximum throughput rate of the AD4005 is 1 MSPS.
- What is the operating temperature range of the AD4005?
The operating temperature range of the AD4005 is from -40°C to +125°C.
- Does the AD4005 require a dedicated ADC driver?
No, the AD4005 features Easy Drive technology, which eliminates the need for a dedicated ADC driver.
- What is the purpose of the input overvoltage clamp in the AD4005?
The input overvoltage clamp protects the ADC inputs against overvoltage events, minimizing disturbances on the reference pin and eliminating the need for external protection diodes.
- How does the AD4005 power consumption scale?
The AD4005 power consumption scales linearly with throughput.
- What is the common-mode rejection ratio (CMRR) of the AD4005?
The CMRR of the AD4005 is 68 dB.
- What is the typical analog input current during the acquisition phase?
The typical analog input current during the acquisition phase is 0.3 nA.
- What package options are available for the AD4005?
The AD4005 is available in 10-Lead MSOP and 10-Lead LFCSP packages.
- What is the reference voltage range for the AD4005?
The reference voltage (VREF) can be set independently of the supply voltage and typically ranges from 1.8V to 5V.
