Overview
The AD4002BRMZ is a high-accuracy, high-speed, low-power 18-bit successive approximation register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This device operates from a single power supply and features an externally applied reference voltage, which can be set independently of the supply voltage. The AD4002 is part of the AD4000 family of precision SAR ADCs, known for their high performance and low power consumption.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 18 Bits | |||
| Analog Input Voltage Range | 0 | VREF | V | |
| Operating Input Voltage (VIN+ to GND) | -0.1 VREF | +0.1 VREF | V | |
| Analog Input Current (Acquisition Phase, TA = 25°C) | 0.3 nA | 1 μA (High-Z mode enabled) | A | |
| Throughput Rate | 2 MSPS (Turbo mode enabled) | samples/s | ||
| Conversion Time | 270 ns | 290 ns | 320 ns | ns |
| Integral Nonlinearity Error (INL) | -3.2 LSB | ±0.8 LSB | +3.2 LSB | LSB |
| Differential Nonlinearity Error (DNL) | -0.8 LSB | ±0.5 LSB | +0.8 LSB | LSB |
| Zero Error | -18 LSB | +18 LSB | LSB | |
| Gain Error | -45 LSB | ±10 LSB | +45 LSB | LSB |
| Power Supply Voltage (VDD) | 1.71 V | 1.89 V | V | |
| Reference Voltage (VREF) | 5 V | V | ||
Key Features
- High accuracy and high speed with up to 2 MSPS throughput in turbo mode.
- Low power consumption, with power scaling linearly with throughput.
- External reference voltage (VREF) that can be set independently of the supply voltage.
- Pseudo differential analog input structure.
- High-Z mode and span compression features.
- Low noise and high dynamic range, with an oversampled dynamic range of up to 98 dB.
- Compact 10-lead MSOP package.
Applications
- Industrial process control and automation.
- Medical devices, such as patient monitoring systems and diagnostic equipment.
- Aerospace and defense systems requiring high accuracy and reliability.
- Test and measurement instruments, including multimeters and oscilloscopes.
- Automotive systems, particularly those requiring precise sensor data.
Q & A
- What is the resolution of the AD4002BRMZ ADC?
The AD4002BRMZ has a resolution of 18 bits. - What is the maximum throughput rate of the AD4002BRMZ?
The maximum throughput rate is 2 MSPS in turbo mode. - What is the operating temperature range of the AD4002BRMZ?
The operating temperature range is from -40°C to +125°C. - Can the reference voltage be set independently of the supply voltage?
Yes, the reference voltage (VREF) can be set independently of the supply voltage. - What is the typical conversion time for the AD4002BRMZ?
The typical conversion time is 290 ns. - Does the AD4002BRMZ support high-Z mode?
Yes, the AD4002BRMZ supports high-Z mode. - What is the dynamic range of the AD4002BRMZ?
The dynamic range is 95.3 dB, and up to 98 dB with oversampling. - What package type is the AD4002BRMZ available in?
The AD4002BRMZ is available in a 10-lead MSOP package. - Is the AD4002BRMZ suitable for medical devices?
Yes, it is suitable for medical devices due to its high accuracy and reliability. - Can the AD4002BRMZ be used in automotive systems?
Yes, it can be used in automotive systems requiring precise sensor data.
